Merge remote-tracking branch 'origin/release/webrtc-voice' into release/2024.06-atlasaurus

 # Conflicts:
 #	autobuild.xml
 #	indra/newview/llvoicechannel.cpp

23 files changed, 169 insertions, 285 deletions

diff --git a/autobuild.xml b/autobuild.xml
index c47661df18..860f0c4caa 100644
--- a/autobuild.xml
+++ b/autobuild.xml
@@ -412,11 +412,11 @@
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>f6835c4d7745cd1cadfbce47b40331d08affb532</string>
+              <string>e03eb77224290c875ff84f75b7fe3d0e7c162c94</string>
               <key>hash_algorithm</key>
               <string>sha1</string>
               <key>url</key>
-              <string>https://github.com/secondlife/3p-dictionaries/releases/download/v1.0.1-dev2.gf887629-f887629/dictionaries-common-None.tar.zst</string>
+              <string>https://github.com/secondlife/3p-dictionaries/releases/download/v1-a01bb6c/dictionaries-1.a01bb6c-common-a01bb6c.tar.zst</string>
             </map>
             <key>name</key>
             <string>common</string>
@@ -429,7 +429,7 @@
         <key>copyright</key>
         <string>Copyright 2014 Apache OpenOffice software</string>
         <key>version</key>
-        <string>None</string>
+        <string>1.a01bb6c</string>
         <key>name</key>
         <string>dictionaries</string>
         <key>description</key>
@@ -720,11 +720,11 @@
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>6604c1cca515d287e697997a8d5593d1cae172a9</string>
+              <string>066625e7aa7f697a4b6cd461aad960c57181011f</string>
               <key>hash_algorithm</key>
               <string>sha1</string>
               <key>url</key>
-              <string>https://github.com/secondlife/3p-glh_linear/releases/download/v1.0.1-dev2.g3253ed7-3253ed7/glh_linear-common-None.tar.zst</string>
+              <string>https://github.com/secondlife/3p-glh_linear/releases/download/v1.0.1-dev4-984c397/glh_linear-1.0.1-dev4-common-984c397.tar.zst</string>
             </map>
             <key>name</key>
             <string>common</string>
@@ -737,7 +737,7 @@
         <key>copyright</key>
         <string>Copyright (c) 2000 Cass Everitt</string>
         <key>version</key>
-        <string>None</string>
+        <string>1.0.1-dev4</string>
         <key>name</key>
         <string>glh_linear</string>
         <key>description</key>
@@ -852,11 +852,11 @@
               <key>creds</key>
               <string>github</string>
               <key>hash</key>
-              <string>a193ff65d6db48626d65d96c6124c6efca85e8ec</string>
+              <string>ae2c2a215b1bc2e3f37a67e301926dc405902d1a</string>
               <key>hash_algorithm</key>
               <string>sha1</string>
               <key>url</key>
-              <string>https://api.github.com/repos/secondlife/3p-havok-source/releases/assets/108912596</string>
+              <string>https://api.github.com/repos/secondlife/3p-havok-source/releases/assets/136778143</string>
             </map>
             <key>name</key>
             <string>darwin64</string>
@@ -880,11 +880,11 @@
               <key>creds</key>
               <string>github</string>
               <key>hash</key>
-              <string>ebfb82b6143874e7938b9d1e8a70d0a2e28aa818</string>
+              <string>0393dd75c58f7046bed47e62a8884a78cb02a5c3</string>
               <key>hash_algorithm</key>
               <string>sha1</string>
               <key>url</key>
-              <string>https://api.github.com/repos/secondlife/3p-havok-source/releases/assets/108912599</string>
+              <string>https://api.github.com/repos/secondlife/3p-havok-source/releases/assets/136778145</string>
             </map>
             <key>name</key>
             <string>windows64</string>
@@ -1030,11 +1030,11 @@
               <key>creds</key>
               <string>github</string>
               <key>hash</key>
-              <string>bcc7e2c34896fc9cbc41828dee8a4ddf54f10453</string>
+              <string>ad72fa1d103df777906f0d98f3e882b9916aeada</string>
               <key>hash_algorithm</key>
               <string>sha1</string>
               <key>url</key>
-              <string>https://api.github.com/repos/secondlife/3p-kdu/releases/assets/108298968</string>
+              <string>https://api.github.com/repos/secondlife/3p-kdu/releases/assets/136774118</string>
             </map>
             <key>name</key>
             <string>darwin64</string>
@@ -1046,11 +1046,11 @@
               <key>creds</key>
               <string>github</string>
               <key>hash</key>
-              <string>9de772df2ed12e9c742df6c90670c7cbbb9c93a6</string>
+              <string>e46e4ac93a237b5c4a14183766f76ba5d58935a2</string>
               <key>hash_algorithm</key>
               <string>sha1</string>
               <key>url</key>
-              <string>https://api.github.com/repos/secondlife/3p-kdu/releases/assets/108298969</string>
+              <string>https://api.github.com/repos/secondlife/3p-kdu/releases/assets/136774125</string>
             </map>
             <key>name</key>
             <string>linux64</string>
@@ -1062,15 +1062,31 @@
               <key>creds</key>
               <string>github</string>
               <key>hash</key>
-              <string>92533ff0f8c1881ad85e75800f9072c413ccf7b7</string>
+              <string>bb37557f78c72b26580a521f8b8dabfa1b34e6e6</string>
               <key>hash_algorithm</key>
               <string>sha1</string>
               <key>url</key>
-              <string>https://api.github.com/repos/secondlife/3p-kdu/releases/assets/108298970</string>
+              <string>https://api.github.com/repos/secondlife/3p-kdu/releases/assets/136774126</string>
             </map>
             <key>name</key>
             <string>windows64</string>
           </map>
+          <key>linux</key>
+          <map>
+            <key>archive</key>
+            <map>
+              <key>creds</key>
+              <string>github</string>
+              <key>hash</key>
+              <string>711b82f9f588d3a125af7dcd8c81f93d9c343a7d</string>
+              <key>hash_algorithm</key>
+              <string>sha1</string>
+              <key>url</key>
+              <string>https://api.github.com/repos/secondlife/3p-kdu/releases/assets/136774121</string>
+            </map>
+            <key>name</key>
+            <string>linux</string>
+          </map>
         </map>
         <key>license</key>
         <string>Kakadu</string>
@@ -1079,7 +1095,7 @@
         <key>copyright</key>
         <string>Kakadu software</string>
         <key>version</key>
-        <string>7.10.4.539108</string>
+        <string>7.10.4.4b9ec5f</string>
         <key>name</key>
         <string>kdu</string>
         <key>description</key>
@@ -1378,11 +1394,11 @@
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>e50ea94bbaa4ff41bf53b84b7192df1a694c5337</string>
+              <string>a9503e1b4e1d9790cf29d18a3d9ab39e6a515679</string>
               <key>hash_algorithm</key>
               <string>sha1</string>
               <key>url</key>
-              <string>https://github.com/secondlife/llca/releases/download/v202310121525.0-d22bd98/llca-202310121530.0-common-d22bd98.tar.zst</string>
+              <string>https://github.com/secondlife/llca/releases/download/v202402012004.0-0f5d9c3/llca-202402012004.0-common-0f5d9c3.tar.zst</string>
             </map>
             <key>name</key>
             <string>common</string>
@@ -1644,6 +1660,18 @@
       </map>
       <key>mikktspace</key>
       <map>
+        <key>canonical_repo</key>
+        <string>https://bitbucket.org/lindenlab/3p-mikktspace</string>
+        <key>copyright</key>
+        <string>Copyright (C) 2011 by Morten S. Mikkelsen, Copyright (C) 2022 Blender Authors</string>
+        <key>description</key>
+        <string>Mikktspace Tangent Generator</string>
+        <key>license</key>
+        <string>Apache 2.0</string>
+        <key>license_file</key>
+        <string>mikktspace.txt</string>
+        <key>name</key>
+        <string>mikktspace</string>
         <key>platforms</key>
         <map>
           <key>darwin64</key>
@@ -1689,20 +1717,8 @@
             <string>windows64</string>
           </map>
         </map>
-        <key>license</key>
-        <string>Apache 2.0</string>
-        <key>license_file</key>
-        <string>mikktspace.txt</string>
-        <key>copyright</key>
-        <string>Copyright (C) 2011 by Morten S. Mikkelsen, Copyright (C) 2022 Blender Authors</string>
         <key>version</key>
         <string>1</string>
-        <key>name</key>
-        <string>mikktspace</string>
-        <key>canonical_repo</key>
-        <string>https://bitbucket.org/lindenlab/3p-mikktspace</string>
-        <key>description</key>
-        <string>Mikktspace Tangent Generator</string>
       </map>
       <key>minizip-ng</key>
       <map>
@@ -2351,9 +2367,11 @@ Copyright (c) 2012, 2014, 2015, 2016 nghttp2 contributors</string>
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>4dad1c0948141e1667c01a3ee755e4dc</string>
+              <string>2c47ae2d0c38c86b8c2db8d9317f0ab15edfc74f</string>
+              <key>hash_algorithm</key>
+              <string>sha1</string>
               <key>url</key>
-              <string>https://automated-builds-secondlife-com.s3.amazonaws.com/ct2/105849/926137/tinygltf-v2.5.0-common-575729.tar.bz2</string>
+              <string>https://github.com/secondlife/3p-tinygltf/releases/download/v2.5.0-1ae57fd/tinygltf-v2.5.0-common-1ae57fd.tar.zst</string>
             </map>
             <key>name</key>
             <string>common</string>
@@ -2387,9 +2405,11 @@ Copyright (c) 2012, 2014, 2015, 2016 nghttp2 contributors</string>
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>9b6e1a1f4b0969d38a1ca8ee00aeb548</string>
+              <string>49650353442698c3e05102676fe427d0ebe02f0b</string>
+              <key>hash_algorithm</key>
+              <string>sha1</string>
               <key>url</key>
-              <string>https://automated-builds-secondlife-com.s3.amazonaws.com/ct2/110584/960613/tracy-v0.8.1.578241-darwin64-578241.tar.bz2</string>
+              <string>https://github.com/secondlife/3p-tracy/releases/download/v0.8.1-eecbf72/tracy-v0.8.1-eecbf72-darwin64-eecbf72.tar.zst</string>
             </map>
             <key>name</key>
             <string>darwin64</string>
@@ -2399,11 +2419,11 @@ Copyright (c) 2012, 2014, 2015, 2016 nghttp2 contributors</string>
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>05b72ae5d733aed7d3bf142287601cc6</string>
+              <string>2b80e7407e4f3e82eff3879add0e9ad63e7fcace</string>
               <key>hash_algorithm</key>
-              <string>md5</string>
+              <string>sha1</string>
               <key>url</key>
-              <string>https://automated-builds-secondlife-com.s3.amazonaws.com/ct2/110586/960637/tracy-v0.8.1.578241-windows64-578241.tar.bz2</string>
+              <string>https://github.com/secondlife/3p-tracy/releases/download/v0.8.1-eecbf72/tracy-v0.8.1-eecbf72-windows64-eecbf72.tar.zst</string>
             </map>
             <key>name</key>
             <string>windows64</string>
@@ -2416,7 +2436,7 @@ Copyright (c) 2012, 2014, 2015, 2016 nghttp2 contributors</string>
         <key>copyright</key>
         <string>Copyright (c) 2017-2022, Bartosz Taudul (wolf@nereid.pl)</string>
         <key>version</key>
-        <string>v0.8.1.578241</string>
+        <string>v0.8.1-eecbf72</string>
         <key>name</key>
         <string>tracy</string>
         <key>canonical_repo</key>
@@ -2615,8 +2635,6 @@ Copyright (c) 2012, 2014, 2015, 2016 nghttp2 contributors</string>
         <string>LICENSE</string>
         <key>copyright</key>
         <string>Copyright (c) 2000-2012, Linden Research, Inc.</string>
-        <key>version</key>
-        <string>3.0-f14b5ec</string>
         <key>name</key>
         <string>viewer-manager</string>
         <key>description</key>
@@ -2625,6 +2643,8 @@ Copyright (c) 2012, 2014, 2015, 2016 nghttp2 contributors</string>
         <string>https://bitbucket.org/lindenlab/vmp-standalone</string>
         <key>source_type</key>
         <string>hg</string>
+        <key>version</key>
+        <string>3.0-f14b5ec</string>
       </map>
       <key>vlc-bin</key>
       <map>
@@ -2734,51 +2754,29 @@ Copyright (c) 2012, 2014, 2015, 2016 nghttp2 contributors</string>
       <map>
         <key>platforms</key>
         <map>
-          <key>darwin64</key>
-          <map>
-            <key>archive</key>
-            <map>
-              <key>hash</key>
-              <string>8cff2060843db3db788511ee34a8e8cc</string>
-              <key>url</key>
-              <string>https://automated-builds-secondlife-com.s3.amazonaws.com/ct2/101316/891509/vulkan_gltf-1-darwin64-572743.tar.bz2</string>
-            </map>
-            <key>name</key>
-            <string>darwin64</string>
-          </map>
-          <key>windows</key>
-          <map>
-            <key>archive</key>
-            <map>
-              <key>hash</key>
-              <string>58eea384be49ba756ce9c5e66669540b</string>
-              <key>url</key>
-              <string>https://automated-builds-secondlife-com.s3.amazonaws.com/ct2/101318/891520/vulkan_gltf-1-windows-572743.tar.bz2</string>
-            </map>
-            <key>name</key>
-            <string>windows</string>
-          </map>
-          <key>windows64</key>
+          <key>common</key>
           <map>
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>79b6a11622c2f83cfc2b7cd1fafb867b</string>
+              <string>8e365eff8dcace48d91e2530f8b13e420849aefc</string>
+              <key>hash_algorithm</key>
+              <string>sha1</string>
               <key>url</key>
-              <string>https://automated-builds-secondlife-com.s3.amazonaws.com/ct2/101319/891521/vulkan_gltf-1-windows64-572743.tar.bz2</string>
+              <string>https://github.com/secondlife/3p-vulkan-gltf-pbr/releases/download/v1.0.0-d7c372f/vulkan_gltf-1.0.0-common-d7c372f.tar.zst</string>
             </map>
             <key>name</key>
-            <string>windows64</string>
+            <string>common</string>
           </map>
         </map>
         <key>license</key>
         <string>Copyright (c) 2018 Sascha Willems</string>
         <key>license_file</key>
-        <string>LICENSES/vulkan_gltf.txt</string>
+        <string>vulkan_gltf.txt</string>
         <key>copyright</key>
         <string>Copyright (c) 2018 Sascha Willems</string>
         <key>version</key>
-        <string>1</string>
+        <string>1.0.0</string>
         <key>name</key>
         <string>vulkan_gltf</string>
         <key>canonical_repo</key>
@@ -2861,54 +2859,14 @@ Copyright (c) 2012, 2014, 2015, 2016 nghttp2 contributors</string>
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>e4f77ba0a9b8ec3cc3fabc51c4da81d2</string>
-              <key>url</key>
-              <string>https://automated-builds-secondlife-com.s3.amazonaws.com/ct2/110070/956941/xxhash-0.8.1.578006-windows-578006.tar.bz2</string>
-            </map>
-            <key>name</key>
-            <string>common</string>
-          </map>
-          <key>darwin64</key>
-          <map>
-            <key>archive</key>
-            <map>
-              <key>hash</key>
-              <string>fdcc803a76a3359bb426db7dac161406676d51e7</string>
-              <key>hash_algorithm</key>
-              <string>sha1</string>
-              <key>url</key>
-              <string>https://github.com/secondlife/3p-xxhash/releases/download/v0.8.1.7501c90/xxhash-0.8.1.7501c90-darwin64-7501c90.tar.zst</string>
-            </map>
-            <key>name</key>
-            <string>darwin64</string>
-          </map>
-          <key>linux64</key>
-          <map>
-            <key>archive</key>
-            <map>
-              <key>hash</key>
-              <string>7acb3f94a549fbb9bd7bc16604e34f33c5365a9b</string>
+              <string>1a73c476b371b62066d1c3eced249660e9467e53</string>
               <key>hash_algorithm</key>
               <string>sha1</string>
               <key>url</key>
-              <string>https://github.com/secondlife/3p-xxhash/releases/download/v0.8.1.7501c90/xxhash-0.8.1.7501c90-linux64-7501c90.tar.zst</string>
+              <string>https://github.com/secondlife/3p-xxhash/releases/download/v0.8.1-69ff69a/xxhash-0.8.1-69ff69a-common-69ff69a.tar.zst</string>
             </map>
             <key>name</key>
-            <string>linux64</string>
-          </map>
-          <key>windows64</key>
-          <map>
-            <key>archive</key>
-            <map>
-              <key>hash</key>
-              <string>4522d075ea4703ef4b527c3039864ef735ea7953</string>
-              <key>hash_algorithm</key>
-              <string>sha1</string>
-              <key>url</key>
-              <string>https://github.com/secondlife/3p-xxhash/releases/download/v0.8.1.7501c90/xxhash-0.8.1.7501c90-windows64-7501c90.tar.zst</string>
-            </map>
-            <key>name</key>
-            <string>windows64</string>
+            <string>common</string>
           </map>
         </map>
         <key>license</key>
@@ -2918,7 +2876,7 @@ Copyright (c) 2012, 2014, 2015, 2016 nghttp2 contributors</string>
         <key>copyright</key>
         <string>Copyright (c) 2012-2021 Yann Collet</string>
         <key>version</key>
-        <string>0.8.1.7501c90</string>
+        <string>0.8.1-69ff69a</string>
         <key>name</key>
         <string>xxhash</string>
         <key>description</key>
diff --git a/indra/llwebrtc/llwebrtc.cpp b/indra/llwebrtc/llwebrtc.cpp
index 92a2827d73..d5bd913315 100644
--- a/indra/llwebrtc/llwebrtc.cpp
+++ b/indra/llwebrtc/llwebrtc.cpp
@@ -35,6 +35,7 @@
 #include "api/media_stream_interface.h"
 #include "api/media_stream_track.h"
 #include "modules/audio_processing/audio_buffer.h"
+#include "modules/audio_mixer/audio_mixer_impl.h"
 
 namespace llwebrtc
 {
@@ -88,7 +89,7 @@ void LLAudioDeviceObserver::OnRenderData(const void    *audio_samples,
 {
 }
 
-LLCustomProcessor::LLCustomProcessor() : mSampleRateHz(0), mNumChannels(0), mMicrophoneEnergy(0.0)
+LLCustomProcessor::LLCustomProcessor() : mSampleRateHz(0), mNumChannels(0), mMicrophoneEnergy(0.0), mGain(1.0)
 {
     memset(mSumVector, 0, sizeof(mSumVector));
 }
@@ -128,9 +129,13 @@ void LLCustomProcessor::Process(webrtc::AudioBuffer *audio_in)
     for (size_t index = 0; index < stream_config.num_samples(); index++)
     {
         float sample = frame_samples[index];
+        sample       = sample * mGain; // apply gain
+        frame_samples[index] = sample; // write processed sample back to buffer.
         energy += sample * sample;
     }
 
+    audio_in->CopyFrom(&frame[0], stream_config);
+
     // smooth it.
     size_t buffer_size = sizeof(mSumVector) / sizeof(mSumVector[0]);
     float  totalSum    = 0;
@@ -236,9 +241,9 @@ void LLWebRTCImpl::init()
     webrtc::AudioProcessing::Config apm_config;
     apm_config.echo_canceller.enabled         = false;
     apm_config.echo_canceller.mobile_mode     = false;
-    apm_config.gain_controller1.enabled       = true;
+    apm_config.gain_controller1.enabled       = false;
     apm_config.gain_controller1.mode          = webrtc::AudioProcessing::Config::GainController1::kAdaptiveAnalog;
-    apm_config.gain_controller2.enabled       = true;
+    apm_config.gain_controller2.enabled       = false;
     apm_config.high_pass_filter.enabled       = true;
     apm_config.noise_suppression.enabled      = true;
     apm_config.noise_suppression.level        = webrtc::AudioProcessing::Config::NoiseSuppression::kVeryHigh;
@@ -260,6 +265,7 @@ void LLWebRTCImpl::init()
     mAudioProcessingModule->ApplyConfig(apm_config);
     mAudioProcessingModule->Initialize(processing_config);
 
+
     mPeerConnectionFactory = webrtc::CreatePeerConnectionFactory(mNetworkThread.get(),
                                                                  mWorkerThread.get(),
                                                                  mSignalingThread.get(),
@@ -336,9 +342,9 @@ void LLWebRTCImpl::setAudioConfig(LLWebRTCDeviceInterface::AudioConfig config)
     webrtc::AudioProcessing::Config apm_config;
     apm_config.echo_canceller.enabled         = config.mEchoCancellation;
     apm_config.echo_canceller.mobile_mode     = false;
-    apm_config.gain_controller1.enabled       = true;
+    apm_config.gain_controller1.enabled       = config.mAGC;
     apm_config.gain_controller1.mode          = webrtc::AudioProcessing::Config::GainController1::kAdaptiveAnalog;
-    apm_config.gain_controller2.enabled       = true;
+    apm_config.gain_controller2.enabled       = false;
     apm_config.high_pass_filter.enabled       = true;
     apm_config.transient_suppression.enabled  = true;
     apm_config.pipeline.multi_channel_render  = true;
@@ -452,7 +458,7 @@ void ll_set_device_module_render_device(rtc::scoped_refptr<webrtc::AudioDeviceMo
     {
         device_module->SetPlayoutDevice(webrtc::AudioDeviceModule::kDefaultDevice);
     }
-    else
+    else 
     {
         device_module->SetPlayoutDevice(device);
     }
@@ -612,6 +618,8 @@ float LLWebRTCImpl::getTuningAudioLevel() { return -20 * log10f(mTuningAudioDevi
 
 float LLWebRTCImpl::getPeerConnectionAudioLevel() { return -20 * log10f(mPeerCustomProcessor->getMicrophoneEnergy()); }
 
+void LLWebRTCImpl::setPeerConnectionGain(float gain) { mPeerCustomProcessor->setGain(gain); }
+
 
 //
 // Peer Connection Helpers
@@ -648,7 +656,7 @@ void LLWebRTCImpl::freePeerConnection(LLWebRTCPeerConnectionInterface* peer_conn
 // Most peer connection (signaling) happens on
 // the signaling thread.
 
-LLWebRTCPeerConnectionImpl::LLWebRTCPeerConnectionImpl() :
+LLWebRTCPeerConnectionImpl::LLWebRTCPeerConnectionImpl() : 
     mWebRTCImpl(nullptr),
     mPeerConnection(nullptr),
     mMute(false),
@@ -937,7 +945,7 @@ void LLWebRTCPeerConnectionImpl::setSendVolume(float volume)
             {
                 for (auto &track : mLocalStream->GetAudioTracks())
                 {
-                    track->GetSource()->SetVolume(volume);
+                    track->GetSource()->SetVolume(volume*5.0);
                 }
             }
         });
@@ -1163,7 +1171,7 @@ void LLWebRTCPeerConnectionImpl::OnSuccess(webrtc::SessionDescriptionInterface *
     {
         observer->OnOfferAvailable(mangled_sdp);
     }
-
+    
    mPeerConnection->SetLocalDescription(std::unique_ptr<webrtc::SessionDescriptionInterface>(
                                                      webrtc::CreateSessionDescription(webrtc::SdpType::kOffer, mangled_sdp)),
                                                  rtc::scoped_refptr<webrtc::SetLocalDescriptionObserverInterface>(this));
diff --git a/indra/llwebrtc/llwebrtc.h b/indra/llwebrtc/llwebrtc.h
index b0b47bacc1..f447ea990a 100644
--- a/indra/llwebrtc/llwebrtc.h
+++ b/indra/llwebrtc/llwebrtc.h
@@ -129,7 +129,7 @@ class LLWebRTCDeviceInterface
     };
 
     virtual void setAudioConfig(AudioConfig config) = 0;
-
+    
     // instructs webrtc to refresh the device list.
     virtual void refreshDevices() = 0;
 
@@ -145,6 +145,7 @@ class LLWebRTCDeviceInterface
     virtual void setTuningMode(bool enable) = 0;
     virtual float getTuningAudioLevel() = 0; // for use during tuning
     virtual float getPeerConnectionAudioLevel() = 0; // for use when not tuning
+    virtual void setPeerConnectionGain(float gain) = 0;
 };
 
 // LLWebRTCAudioInterface provides the viewer with a way
@@ -230,7 +231,7 @@ class LLWebRTCSignalingObserver
 class LLWebRTCPeerConnectionInterface
 {
   public:
-
+    
     struct InitOptions
     {
         // equivalent of PeerConnectionInterface::IceServer
diff --git a/indra/llwebrtc/llwebrtc_impl.h b/indra/llwebrtc/llwebrtc_impl.h
index cb54e83a63..6672f8ce90 100644
--- a/indra/llwebrtc/llwebrtc_impl.h
+++ b/indra/llwebrtc/llwebrtc_impl.h
@@ -121,6 +121,8 @@ class LLCustomProcessor : public webrtc::CustomProcessing
 
     float getMicrophoneEnergy() { return mMicrophoneEnergy; }
 
+    void setGain(float gain) { mGain = gain; }
+
   protected:
     static const int NUM_PACKETS_TO_FILTER = 30;  // 300 ms of smoothing
     int              mSampleRateHz;
@@ -128,6 +130,7 @@ class LLCustomProcessor : public webrtc::CustomProcessing
 
     float mSumVector[NUM_PACKETS_TO_FILTER];
     float mMicrophoneEnergy;
+    float mGain;
 };
 
 
@@ -160,6 +163,8 @@ class LLWebRTCImpl : public LLWebRTCDeviceInterface, public webrtc::AudioDeviceS
     float getTuningAudioLevel() override;
     float getPeerConnectionAudioLevel() override;
 
+    void setPeerConnectionGain(float gain) override;
+
     //
     // AudioDeviceSink
     //
@@ -230,7 +235,7 @@ class LLWebRTCImpl : public LLWebRTCDeviceInterface, public webrtc::AudioDeviceS
 
     // The factory that allows creation of native webrtc PeerConnections.
     rtc::scoped_refptr<webrtc::PeerConnectionFactoryInterface> mPeerConnectionFactory;
-
+    
     rtc::scoped_refptr<webrtc::AudioProcessing>                mAudioProcessingModule;
 
     // more native webrtc stuff
diff --git a/indra/newview/llimview.cpp b/indra/newview/llimview.cpp
index 72edbaebe1..05b1fec8e5 100644
--- a/indra/newview/llimview.cpp
+++ b/indra/newview/llimview.cpp
@@ -3412,11 +3412,11 @@ LLUUID LLIMMgr::addSession(
         ((IM_NOTHING_SPECIAL == dialog) || (IM_SESSION_P2P_INVITE == dialog) || (IM_SESSION_CONFERENCE_START == dialog)) &&
         ids.size())
     {
-        LLIMModel::LLIMSession* ad_hoc_found = LLIMModel::getInstance()->findAdHocIMSession(ids);
-        if (ad_hoc_found)
+        session = LLIMModel::getInstance()->findAdHocIMSession(ids);
+        if (session)
         {
             new_session = false;
-            session_id = ad_hoc_found->mSessionID;
+            session_id = session->mSessionID;
         }
     }
 
@@ -3852,7 +3852,7 @@ bool LLIMMgr::startCall(const LLUUID& session_id, LLVoiceChannel::EDirection dir
 {
     LLVoiceChannel* voice_channel = LLIMModel::getInstance()->getVoiceChannel(session_id);
     if (!voice_channel) return false;
-    if (!voice_channel_info.isUndefined())
+    if (voice_channel_info.isDefined() && voice_channel_info.isMap() && voice_channel_info.size() > 0)
     {
         voice_channel->setChannelInfo(voice_channel_info);
     }
diff --git a/indra/newview/llviewermenu.cpp b/indra/newview/llviewermenu.cpp
index 7e58a604f6..9a9a316adf 100644
--- a/indra/newview/llviewermenu.cpp
+++ b/indra/newview/llviewermenu.cpp
@@ -9481,15 +9481,6 @@ class LLUpdateMembershipLabel : public view_listener_t
     }
 };
 
-void handle_voice_morphing_subscribe()
-{
-    LLWeb::loadURL(LLTrans::getString("voice_morphing_url"));
-}
-
-void handle_premium_voice_morphing_subscribe()
-{
-    LLWeb::loadURL(LLTrans::getString("premium_voice_morphing_url"));
-}
 
 class LLToggleUIHints : public view_listener_t
 {
@@ -9690,16 +9681,6 @@ void initialize_menus()
     //Communicate Nearby chat
     view_listener_t::addMenu(new LLCommunicateNearbyChat(), "Communicate.NearbyChat");
 
-    // Communicate > Voice morphing > Subscribe...
-    commit.add("Communicate.VoiceMorphing.Subscribe", boost::bind(&handle_voice_morphing_subscribe));
-    // Communicate > Voice morphing > Premium perk...
-    commit.add("Communicate.VoiceMorphing.PremiumPerk", boost::bind(&handle_premium_voice_morphing_subscribe));
-    LLVivoxVoiceClient * voice_clientp = LLVivoxVoiceClient::getInstance();
-    enable.add("Communicate.VoiceMorphing.NoVoiceMorphing.Check"
-        , boost::bind(&LLVivoxVoiceClient::onCheckVoiceEffect, voice_clientp, "NoVoiceMorphing"));
-    commit.add("Communicate.VoiceMorphing.NoVoiceMorphing.Click"
-        , boost::bind(&LLVivoxVoiceClient::onClickVoiceEffect, voice_clientp, "NoVoiceMorphing"));
-
     // World menu
     view_listener_t::addMenu(new LLWorldAlwaysRun(), "World.AlwaysRun");
     view_listener_t::addMenu(new LLWorldCreateLandmark(), "World.CreateLandmark");
diff --git a/indra/newview/llvoicechannel.cpp b/indra/newview/llvoicechannel.cpp
index b665eb69a2..b95e43da8d 100644
--- a/indra/newview/llvoicechannel.cpp
+++ b/indra/newview/llvoicechannel.cpp
@@ -96,7 +96,7 @@ void LLVoiceChannel::setChannelInfo(const LLSD &channelInfo)
 
     if (mState == STATE_NO_CHANNEL_INFO)
     {
-        if (mChannelInfo.isUndefined())
+        if (mChannelInfo.isUndefined() || !mChannelInfo.isMap() || mChannelInfo.size() == 0)
         {
             LLNotificationsUtil::add("VoiceChannelJoinFailed", mNotifyArgs);
             LL_WARNS("Voice") << "Received empty channel info for channel " << mSessionName << LL_ENDL;
@@ -122,7 +122,7 @@ void LLVoiceChannel::onChange(EStatusType type, const LLSD& channelInfo, bool pr
 {
     LL_DEBUGS("Voice") << "Incoming channel info: " << channelInfo << LL_ENDL;
     LL_DEBUGS("Voice") << "Current channel info: " << mChannelInfo << LL_ENDL;
-    if (mChannelInfo.isUndefined())
+    if (mChannelInfo.isUndefined() || (mChannelInfo.isMap() && mChannelInfo.size() == 0))
     {
         mChannelInfo = channelInfo;
     }
@@ -477,7 +477,7 @@ void LLVoiceChannelGroup::setChannelInfo(const LLSD& channelInfo)
 
     if (mState == STATE_NO_CHANNEL_INFO)
     {
-        if(!mChannelInfo.isUndefined())
+        if(mChannelInfo.isDefined() && mChannelInfo.isMap())
         {
             setState(STATE_READY);
 
@@ -676,9 +676,9 @@ void LLVoiceChannelProximal::activate()
         // we're connected to a non-spatial channel, so disconnect.
         LLVoiceClient::getInstance()->leaveNonSpatialChannel();
     }
+
     LLVoiceClient::getInstance()->activateSpatialChannel(true);
     LLVoiceChannel::activate();
-
 }
 
 void LLVoiceChannelProximal::onChange(EStatusType type, const LLSD& channelInfo, bool proximal)
@@ -751,7 +751,7 @@ void LLVoiceChannelProximal::deactivate()
     {
         setState(STATE_HUNG_UP);
     }
-
+    LLVoiceClient::getInstance()->removeObserver(this);
     LLVoiceClient::getInstance()->activateSpatialChannel(false);
 }
 
@@ -907,7 +907,7 @@ void LLVoiceChannelP2P::setChannelInfo(const LLSD& channel_info)
     }
 
     mReceivedCall = true;
-    if (!channel_info.isUndefined())
+    if (channel_info.isDefined() && channel_info.isMap())
     {
         mIncomingCallInterface = LLVoiceClient::getInstance()->getIncomingCallInterface(channel_info);
     }
diff --git a/indra/newview/llvoiceclient.cpp b/indra/newview/llvoiceclient.cpp
index 74c6d611a8..891c9383bf 100644
--- a/indra/newview/llvoiceclient.cpp
+++ b/indra/newview/llvoiceclient.cpp
@@ -139,6 +139,7 @@ LLVoiceClient::LLVoiceClient(LLPumpIO *pump)
     m_servicePump(NULL),
     mVoiceEffectEnabled(LLCachedControl<bool>(gSavedSettings, "VoiceMorphingEnabled", true)),
     mVoiceEffectDefault(LLCachedControl<std::string>(gSavedPerAccountSettings, "VoiceEffectDefault", "00000000-0000-0000-0000-000000000000")),
+    mVoiceEffectSupportNotified(false),
     mPTTDirty(true),
     mPTT(true),
     mUsePTT(true),
@@ -569,11 +570,37 @@ void LLVoiceClient::setMicGain(F32 gain)
 //------------------------------------------
 // enable/disable voice features
 
+// static
+bool LLVoiceClient::onVoiceEffectsNotSupported(const LLSD &notification, const LLSD &response)
+{
+    S32 option = LLNotificationsUtil::getSelectedOption(notification, response);
+    switch (option)
+    {
+        case 0:  // "Okay"
+            gSavedPerAccountSettings.setString("VoiceEffectDefault", LLUUID::null.asString());
+            break;
+
+        case 1:  // "Cancel"
+            break;
+
+        default:
+            llassert(0);
+            break;
+    }
+    return false;
+}
+
 bool LLVoiceClient::voiceEnabled()
 {
     static LLCachedControl<bool> enable_voice_chat(gSavedSettings, "EnableVoiceChat");
     static LLCachedControl<bool> cmd_line_disable_voice(gSavedSettings, "CmdLineDisableVoice");
-    return enable_voice_chat && !cmd_line_disable_voice && !gNonInteractive;
+    bool enabled = enable_voice_chat && !cmd_line_disable_voice && !gNonInteractive;
+    if (enabled && !mVoiceEffectSupportNotified && getVoiceEffectEnabled() && !getVoiceEffectDefault().isNull())
+    {
+        LLNotificationsUtil::add("VoiceEffectsNotSupported", LLSD(), LLSD(), &LLVoiceClient::onVoiceEffectsNotSupported);
+        mVoiceEffectSupportNotified = true;
+    }
+    return enabled;
 }
 
 void LLVoiceClient::setVoiceEnabled(bool enabled)
@@ -812,7 +839,7 @@ std::string LLVoiceClient::sipURIFromID(const LLUUID &id)
 
 LLVoiceEffectInterface* LLVoiceClient::getVoiceEffectInterface() const
 {
-    return getVoiceEffectEnabled() ? dynamic_cast<LLVoiceEffectInterface*>(mSpatialVoiceModule) : NULL;
+    return NULL;
 }
 
 ///////////////////
diff --git a/indra/newview/llvoiceclient.h b/indra/newview/llvoiceclient.h
index 7411df1693..9ae18b315c 100644
--- a/indra/newview/llvoiceclient.h
+++ b/indra/newview/llvoiceclient.h
@@ -508,6 +508,8 @@ public:
 
 protected:
 
+    static bool onVoiceEffectsNotSupported(const LLSD &notification, const LLSD &response);
+
     LLVoiceModuleInterface* mSpatialVoiceModule;
     LLVoiceModuleInterface* mNonSpatialVoiceModule;
     LLSD                    mSpatialCredentials;  // used to store spatial credentials for vivox
@@ -519,6 +521,7 @@ protected:
 
     LLCachedControl<bool> mVoiceEffectEnabled;
     LLCachedControl<std::string> mVoiceEffectDefault;
+    bool        mVoiceEffectSupportNotified;
 
     bool        mPTTDirty;
     bool        mPTT;
diff --git a/indra/newview/llvoicevivox.cpp b/indra/newview/llvoicevivox.cpp
index 17fd85f280..81325b5648 100644
--- a/indra/newview/llvoicevivox.cpp
+++ b/indra/newview/llvoicevivox.cpp
@@ -2540,7 +2540,6 @@ void LLVivoxVoiceClient::sessionCreateSendMessage(const sessionStatePtr_t &sessi
     stream
         << "<ConnectAudio>" << (startAudio?"true":"false") << "</ConnectAudio>"
         << "<ConnectText>" << (startText?"true":"false") << "</ConnectText>"
-        << "<VoiceFontID>" << font_index << "</VoiceFontID>"
         << "<Name>" << mChannelName << "</Name>"
     << "</Request>\n\n\n";
     LL_WARNS("Voice") << "Session.Create: " << stream.str() << LL_ENDL;
@@ -2579,7 +2578,6 @@ void LLVivoxVoiceClient::sessionGroupAddSessionSendMessage(const sessionStatePtr
         << "<Name>" << mChannelName << "</Name>"
         << "<ConnectAudio>" << (startAudio?"true":"false") << "</ConnectAudio>"
         << "<ConnectText>" << (startText?"true":"false") << "</ConnectText>"
-        << "<VoiceFontID>" << font_index << "</VoiceFontID>"
         << "<Password>" << password << "</Password>"
         << "<PasswordHashAlgorithm>SHA1UserName</PasswordHashAlgorithm>"
     << "</Request>\n\n\n"
@@ -2603,7 +2601,6 @@ void LLVivoxVoiceClient::sessionMediaConnectSendMessage(const sessionStatePtr_t
     << "<Request requestId=\"" << session->mHandle << "\" action=\"Session.MediaConnect.1\">"
         << "<SessionGroupHandle>" << session->mGroupHandle << "</SessionGroupHandle>"
         << "<SessionHandle>" << session->mHandle << "</SessionHandle>"
-        << "<VoiceFontID>" << font_index << "</VoiceFontID>"
         << "<Media>Audio</Media>"
     << "</Request>\n\n\n";
 
@@ -5107,25 +5104,31 @@ void LLVivoxVoiceClient::processChannels(bool process)
 
 bool LLVivoxVoiceClient::isCurrentChannel(const LLSD &channelInfo)
 {
-    if (!mProcessChannels || (channelInfo["voice_server_type"].asString() != VIVOX_VOICE_SERVER_TYPE))
+    if (!mProcessChannels || (channelInfo.has("voice_server_type") && channelInfo["voice_server_type"].asString() != VIVOX_VOICE_SERVER_TYPE))
     {
         return false;
     }
-    if (mAudioSession)
+    // favor the next audio session, as that's the one we're bringing up.
+    sessionStatePtr_t session = mNextAudioSession;
+    if (!session)
+    {
+        session = mAudioSession;
+    }
+    if (session)
     {
         if (!channelInfo["session_handle"].asString().empty())
         {
-            return mAudioSession->mHandle == channelInfo["session_handle"].asString();
+            return session->mHandle == channelInfo["session_handle"].asString();
         }
-        return channelInfo["channel_uri"].asString() == mAudioSession->mSIPURI;
+        return channelInfo["channel_uri"].asString() == session->mSIPURI;
     }
     return false;
 }
 
 bool LLVivoxVoiceClient::compareChannels(const LLSD& channelInfo1, const LLSD& channelInfo2)
 {
-    return (channelInfo1["voice_server_type"] == VIVOX_VOICE_SERVER_TYPE) &&
-           (channelInfo1["voice_server_type"] == channelInfo2["voice_server_type"]) &&
+    return (!channelInfo1.has("voice_server_type") || (channelInfo1["voice_server_type"] == VIVOX_VOICE_SERVER_TYPE)) &&
+           (!channelInfo2.has("voice_server_type") || (channelInfo2["voice_server_type"] == VIVOX_VOICE_SERVER_TYPE)) &&
            (channelInfo1["channel_uri"] == channelInfo2["channel_uri"]);
 }
 
diff --git a/indra/newview/llvoicewebrtc.cpp b/indra/newview/llvoicewebrtc.cpp
index 661b4f7ef1..ede1542bd1 100644
--- a/indra/newview/llvoicewebrtc.cpp
+++ b/indra/newview/llvoicewebrtc.cpp
@@ -86,7 +86,7 @@ namespace {
     const F32 VOLUME_SCALE_WEBRTC = 0.01f;
     const F32 LEVEL_SCALE_WEBRTC  = 0.008f;
 
-    const F32 SPEAKING_AUDIO_LEVEL = 0.35;
+    const F32 SPEAKING_AUDIO_LEVEL = 0.30;
 
     static const std::string REPORTED_VOICE_SERVER_TYPE = "Secondlife WebRTC Gateway";
 
@@ -1486,14 +1486,10 @@ void LLWebRTCVoiceClient::setMicGain(F32 gain)
     if (gain != mMicGain)
     {
         mMicGain = gain;
-        sessionState::for_each(boost::bind(predSetMicGain, _1, gain));
+        mWebRTCDeviceInterface->setPeerConnectionGain(gain);
     }
 }
 
-void LLWebRTCVoiceClient::predSetMicGain(const LLWebRTCVoiceClient::sessionStatePtr_t &session, F32 gain)
-{
-    session->setMicGain(gain);
-}
 
 void LLWebRTCVoiceClient::setVoiceEnabled(bool enabled)
 {
@@ -1692,7 +1688,6 @@ std::map<std::string, LLWebRTCVoiceClient::sessionState::ptr_t> LLWebRTCVoiceCli
 LLWebRTCVoiceClient::sessionState::sessionState() :
     mHangupOnLastLeave(false),
     mNotifyOnFirstJoin(false),
-    mMicGain(1.0),
     mMuted(false),
     mSpeakerVolume(1.0),
     mShuttingDown(false)
@@ -1737,15 +1732,6 @@ void LLWebRTCVoiceClient::sessionState::setMuteMic(bool muted)
     }
 }
 
-void LLWebRTCVoiceClient::sessionState::setMicGain(F32 gain)
-{
-    mMicGain = gain;
-    for (auto &connection : mWebRTCConnections)
-    {
-        connection->setMicGain(gain);
-    }
-}
-
 void LLWebRTCVoiceClient::sessionState::setSpeakerVolume(F32 volume)
 {
     mSpeakerVolume = volume;
@@ -1850,7 +1836,6 @@ LLWebRTCVoiceClient::sessionStatePtr_t LLWebRTCVoiceClient::addSession(const std
 
         LL_DEBUGS("Voice") << "adding new session with channel: " << channel_id << LL_ENDL;
         session->setMuteMic(mMuteMic);
-        session->setMicGain(mMicGain);
         session->setSpeakerVolume(mSpeakerVolume);
 
         sessionState::addSession(channel_id, session);
@@ -1976,7 +1961,6 @@ bool LLWebRTCVoiceClient::estateSessionState::processConnectionStates()
             connectionPtr_t connection(new LLVoiceWebRTCSpatialConnection(neighbor, INVALID_PARCEL_ID, mChannelID));
 
             mWebRTCConnections.push_back(connection);
-            connection->setMicGain(mMicGain);
             connection->setMuteMic(mMuted);
             connection->setSpeakerVolume(mSpeakerVolume);
         }
@@ -2106,7 +2090,6 @@ LLVoiceWebRTCConnection::LLVoiceWebRTCConnection(const LLUUID &regionID, const s
     mShutDown(false),
     mIceCompleted(false),
     mSpeakerVolume(0.0),
-    mMicGain(0.0),
     mOutstandingRequests(0),
     mChannelID(channelID),
     mRegionID(regionID),
@@ -2369,15 +2352,6 @@ void LLVoiceWebRTCConnection::setMuteMic(bool muted)
     }
 }
 
-void LLVoiceWebRTCConnection::setMicGain(F32 gain)
-{
-    mMicGain = gain;
-    if (mWebRTCAudioInterface)
-    {
-        mWebRTCAudioInterface->setSendVolume(gain);
-    }
-}
-
 void LLVoiceWebRTCConnection::setSpeakerVolume(F32 volume)
 {
     mSpeakerVolume = volume;
@@ -2677,7 +2651,6 @@ bool LLVoiceWebRTCConnection::connectionStateMachine()
             // this connection.
             mWebRTCAudioInterface->setMute(mMuted);
             mWebRTCAudioInterface->setReceiveVolume(mSpeakerVolume);
-            mWebRTCAudioInterface->setSendVolume(mMicGain);
             LLWebRTCVoiceClient::getInstance()->OnConnectionEstablished(mChannelID, mRegionID);
             setVoiceConnectionState(VOICE_STATE_WAIT_FOR_DATA_CHANNEL);
             break;
diff --git a/indra/newview/llvoicewebrtc.h b/indra/newview/llvoicewebrtc.h
index c341ea6c94..480a7897cd 100644
--- a/indra/newview/llvoicewebrtc.h
+++ b/indra/newview/llvoicewebrtc.h
@@ -282,7 +282,6 @@ public:
         virtual void sendData(const std::string &data);
 
         void setMuteMic(bool muted);
-        void setMicGain(F32 volume);
         void setSpeakerVolume(F32 volume);
         void setUserVolume(const LLUUID& id, F32 volume);
 
@@ -303,7 +302,6 @@ public:
         std::string mName;
 
         bool    mMuted;          // this session is muted.
-        F32     mMicGain;        // gain for this session.
         F32     mSpeakerVolume;  // volume for this session.
 
         bool        mShuttingDown;
@@ -382,7 +380,6 @@ public:
     static void predSendData(const LLWebRTCVoiceClient::sessionStatePtr_t &session, const std::string& spatial_data);
     static void predUpdateOwnVolume(const LLWebRTCVoiceClient::sessionStatePtr_t &session, F32 audio_level);
     static void predSetMuteMic(const LLWebRTCVoiceClient::sessionStatePtr_t &session, bool mute);
-    static void predSetMicGain(const LLWebRTCVoiceClient::sessionStatePtr_t &session, F32 volume);
     static void predSetSpeakerVolume(const LLWebRTCVoiceClient::sessionStatePtr_t &session, F32 volume);
     static void predShutdownSession(const LLWebRTCVoiceClient::sessionStatePtr_t &session);
     static void predSetUserMute(const LLWebRTCVoiceClient::sessionStatePtr_t &session, const LLUUID& id, bool mute);
@@ -607,7 +604,6 @@ class LLVoiceWebRTCConnection :
     void processIceUpdatesCoro();
 
     virtual void setMuteMic(bool muted);
-    virtual void setMicGain(F32 volume);
     virtual void setSpeakerVolume(F32 volume);
 
     void setUserVolume(const LLUUID& id, F32 volume);
@@ -686,7 +682,6 @@ class LLVoiceWebRTCConnection :
     std::string mRemoteChannelSDP;
 
     bool mMuted;
-    F32  mMicGain;
     F32  mSpeakerVolume;
 
     bool mShutDown;
diff --git a/indra/newview/skins/default/xui/de/menu_viewer.xml b/indra/newview/skins/default/xui/de/menu_viewer.xml
index f6724d4993..8c446c1975 100644
--- a/indra/newview/skins/default/xui/de/menu_viewer.xml
+++ b/indra/newview/skins/default/xui/de/menu_viewer.xml
@@ -42,12 +42,6 @@
 		<menu_item_call label="Facebook..." name="Facebook"/>
 		<menu_item_call label="Twitter..." name="Twitter"/>
 		<menu_item_call label="Flickr..." name="Flickr"/>
-		<menu label="Voice-Morphing" name="VoiceMorphing">
-			<menu_item_check label="Kein Voice-Morphing" name="NoVoiceMorphing"/>
-			<menu_item_check label="Vorschau..." name="Preview"/>
-			<menu_item_call label="Abonnieren..." name="Subscribe"/>
-			<menu_item_call label="Premium-Vorteil..." name="PremiumPerk"/>
-		</menu>
 		<menu_item_check label="Gesten..." name="Gestures"/>
 		<menu_item_check label="Freunde" name="My Friends"/>
 		<menu_item_check label="Gruppen" name="My Groups"/>
diff --git a/indra/newview/skins/default/xui/en/menu_viewer.xml b/indra/newview/skins/default/xui/en/menu_viewer.xml
index 4a043bbbc9..d5d2d00630 100644
--- a/indra/newview/skins/default/xui/en/menu_viewer.xml
+++ b/indra/newview/skins/default/xui/en/menu_viewer.xml
@@ -561,42 +561,6 @@
              parameter="conversation" />
         </menu_item_check>
         <menu_item_separator/>
-        <menu
-         label="Voice morphing"
-         name="VoiceMorphing"
-         visibility_control="VoiceMorphingEnabled">
-            <menu_item_check
-             label="No voice morphing"
-             name="NoVoiceMorphing">
-                <menu_item_check.on_check
-                 function="Communicate.VoiceMorphing.NoVoiceMorphing.Check" />
-                <menu_item_check.on_click
-                 function="Communicate.VoiceMorphing.NoVoiceMorphing.Click" />
-            </menu_item_check>
-            <menu_item_separator/>
-            <menu_item_check
-             label="Preview..."
-             name="Preview">
-                <menu_item_check.on_check
-                 function="Floater.Visible"
-                 parameter="voice_effect" />
-                <menu_item_check.on_click
-                 function="Floater.Toggle"
-                 parameter="voice_effect" />
-            </menu_item_check>
-            <menu_item_call
-             label="Subscribe..."
-             name="Subscribe">
-                <menu_item_call.on_click
-                 function="Communicate.VoiceMorphing.Subscribe" />
-            </menu_item_call>
-            <menu_item_call
-             label="Premium perk..."
-             name="PremiumPerk">
-                <menu_item_call.on_click
-                 function="Communicate.VoiceMorphing.PremiumPerk" />
-            </menu_item_call>
-        </menu>
         <menu_item_check
          label="Gestures..."
          name="Gestures"
diff --git a/indra/newview/skins/default/xui/en/notifications.xml b/indra/newview/skins/default/xui/en/notifications.xml
index 1584de6880..f86b297395 100644
--- a/indra/newview/skins/default/xui/en/notifications.xml
+++ b/indra/newview/skins/default/xui/en/notifications.xml
@@ -8842,6 +8842,20 @@ New Voice Morphs are available!
   </notification>
 
   <notification
+    icon="alertmodal.tga"
+    name="VoiceEffectsNotSupported"
+    sound="UISndAlert"
+    persist="true"
+    type="alertmodal">
+Voice Morphs are not supported by this viewer.
+    <usetemplate
+        notext="Cancel"
+        name="okcancelbuttons"
+        yestext="Disable Voice Morphing"/>
+    <tag>voice</tag>
+  </notification>
+
+  <notification
    icon="notifytip.tga"
    name="Cannot enter parcel: not a group member"
    type="notifytip">
diff --git a/indra/newview/skins/default/xui/es/menu_viewer.xml b/indra/newview/skins/default/xui/es/menu_viewer.xml
index c22311f882..04e43f01da 100644
--- a/indra/newview/skins/default/xui/es/menu_viewer.xml
+++ b/indra/newview/skins/default/xui/es/menu_viewer.xml
@@ -42,12 +42,6 @@
 		<menu_item_call label="Facebook..." name="Facebook"/>
 		<menu_item_call label="Twitter..." name="Twitter"/>
 		<menu_item_call label="Flickr..." name="Flickr"/>
-		<menu label="Transformación de voz" name="VoiceMorphing">
-			<menu_item_check label="Sin transformación de voz" name="NoVoiceMorphing"/>
-			<menu_item_check label="Probar..." name="Preview"/>
-			<menu_item_call label="Suscribir..." name="Subscribe"/>
-			<menu_item_call label="Ventaja Premium..." name="PremiumPerk"/>
-		</menu>
 		<menu_item_check label="Gestos..." name="Gestures"/>
 		<menu_item_check label="Amigos" name="My Friends"/>
 		<menu_item_check label="Grupos" name="My Groups"/>
diff --git a/indra/newview/skins/default/xui/it/menu_viewer.xml b/indra/newview/skins/default/xui/it/menu_viewer.xml
index 043fd28ddb..85999ccbe0 100644
--- a/indra/newview/skins/default/xui/it/menu_viewer.xml
+++ b/indra/newview/skins/default/xui/it/menu_viewer.xml
@@ -42,12 +42,6 @@
 		<menu_item_call label="Facebook..." name="Facebook"/>
 		<menu_item_call label="Twitter..." name="Twitter"/>
 		<menu_item_call label="Flickr..." name="Flickr"/>
-		<menu label="Manipolazione voce" name="VoiceMorphing">
-			<menu_item_check label="Nessuna manipolazione voce" name="NoVoiceMorphing"/>
-			<menu_item_check label="Anteprima..." name="Preview"/>
-			<menu_item_call label="Abbonati..." name="Subscribe"/>
-			<menu_item_call label="Vantaggio Premium..." name="PremiumPerk"/>
-		</menu>
 		<menu_item_check label="Gesture..." name="Gestures"/>
 		<menu_item_check label="Amici" name="My Friends"/>
 		<menu_item_check label="Gruppi" name="My Groups"/>
diff --git a/indra/newview/skins/default/xui/ja/menu_viewer.xml b/indra/newview/skins/default/xui/ja/menu_viewer.xml
index a1f3980df4..f6b10bb121 100644
--- a/indra/newview/skins/default/xui/ja/menu_viewer.xml
+++ b/indra/newview/skins/default/xui/ja/menu_viewer.xml
@@ -74,7 +74,6 @@
 		<menu_item_check label="ボイスチャット" name="Speak"/>
 		<menu_item_check name="Conversation Log..." label="会話ログ…"/>
 		<menu_item_separator/>
-		<menu label="ボイスモーフィング" name="VoiceMorphing"/>
 		<menu_item_check label="ジェスチャー…" name="Gestures"/>
 		<menu_item_separator/>
 		<menu_item_check label="フレンド" name="My Friends"/>
diff --git a/indra/newview/skins/default/xui/pl/menu_viewer.xml b/indra/newview/skins/default/xui/pl/menu_viewer.xml
index 4d03e7c780..ee162addd2 100644
--- a/indra/newview/skins/default/xui/pl/menu_viewer.xml
+++ b/indra/newview/skins/default/xui/pl/menu_viewer.xml
@@ -35,11 +35,6 @@
 		<menu_item_check label="Czat lokalny..." name="Nearby Chat" />
 		<menu_item_check label="Mowa" name="Speak" />
 		<menu_item_check name="Conversation Log..." label="Dziennik rozmów..." />
-		<menu label="Przekształcanie głosu" name="VoiceMorphing">
-			<menu_item_check label="Bez przekształcania" name="NoVoiceMorphing" />
-			<menu_item_check label="Podgląd..." name="Preview" />
-			<menu_item_call label="Subskrybuj..." name="Subscribe" />
-		</menu>
 		<menu_item_check label="Gesty..." name="Gestures" />
 		<menu_item_check label="Znajomi" name="My Friends" />
 		<menu_item_check label="Grupy" name="My Groups" />
diff --git a/indra/newview/skins/default/xui/pt/menu_viewer.xml b/indra/newview/skins/default/xui/pt/menu_viewer.xml
index b70adc3ad2..0f4873d11c 100644
--- a/indra/newview/skins/default/xui/pt/menu_viewer.xml
+++ b/indra/newview/skins/default/xui/pt/menu_viewer.xml
@@ -42,12 +42,6 @@
 		<menu_item_call label="Facebook..." name="Facebook"/>
 		<menu_item_call label="Twitter..." name="Twitter"/>
 		<menu_item_call label="Flickr..." name="Flickr"/>
-		<menu label="Distorção de voz" name="VoiceMorphing">
-			<menu_item_check label="Não distorcer voz" name="NoVoiceMorphing"/>
-			<menu_item_check label="Visualizar..." name="Preview"/>
-			<menu_item_call label="Assinar..." name="Subscribe"/>
-			<menu_item_call label="Benefício Premium..." name="PremiumPerk"/>
-		</menu>
 		<menu_item_check label="Gestos..." name="Gestures"/>
 		<menu_item_check label="Amigos" name="My Friends"/>
 		<menu_item_check label="Grupos" name="My Groups"/>
diff --git a/indra/newview/skins/default/xui/ru/menu_viewer.xml b/indra/newview/skins/default/xui/ru/menu_viewer.xml
index 8361464f4c..4a6390329d 100644
--- a/indra/newview/skins/default/xui/ru/menu_viewer.xml
+++ b/indra/newview/skins/default/xui/ru/menu_viewer.xml
@@ -40,12 +40,6 @@
 		<menu_item_call label="Facebook..." name="Facebook"/>
 		<menu_item_call label="Twitter..." name="Twitter"/>
 		<menu_item_call label="Flickr..." name="Flickr"/>
-		<menu label="Изменение голоса" name="VoiceMorphing">
-			<menu_item_check label="Без изменения голоса" name="NoVoiceMorphing"/>
-			<menu_item_check label="Просмотр..." name="Preview"/>
-			<menu_item_call label="Подписаться..." name="Subscribe"/>
-			<menu_item_call label="Премиум-бонус..." name="PremiumPerk"/>
-		</menu>
 		<menu_item_check label="Жесты..." name="Gestures"/>
 		<menu_item_check label="Друзья" name="My Friends"/>
 		<menu_item_check label="Группы" name="My Groups"/>
diff --git a/indra/newview/skins/default/xui/tr/menu_viewer.xml b/indra/newview/skins/default/xui/tr/menu_viewer.xml
index 1c977ba5ce..fb6111248c 100644
--- a/indra/newview/skins/default/xui/tr/menu_viewer.xml
+++ b/indra/newview/skins/default/xui/tr/menu_viewer.xml
@@ -40,12 +40,6 @@
 		<menu_item_call label="Facebook..." name="Facebook"/>
 		<menu_item_call label="Twitter..." name="Twitter"/>
 		<menu_item_call label="Flickr..." name="Flickr"/>
-		<menu label="Ses şekillendirme" name="VoiceMorphing">
-			<menu_item_check label="Ses şekillendirme yok" name="NoVoiceMorphing"/>
-			<menu_item_check label="Önizleme..." name="Preview"/>
-			<menu_item_call label="Abone ol..." name="Subscribe"/>
-			<menu_item_call label="Özel üye avantajı..." name="PremiumPerk"/>
-		</menu>
 		<menu_item_check label="Mimikler..." name="Gestures"/>
 		<menu_item_check label="Arkadaşlar" name="My Friends"/>
 		<menu_item_check label="Gruplar" name="My Groups"/>
diff --git a/indra/newview/skins/default/xui/zh/menu_viewer.xml b/indra/newview/skins/default/xui/zh/menu_viewer.xml
index 972434dfc5..a048af7b68 100644
--- a/indra/newview/skins/default/xui/zh/menu_viewer.xml
+++ b/indra/newview/skins/default/xui/zh/menu_viewer.xml
@@ -40,12 +40,6 @@
 		<menu_item_call label="臉書…" name="Facebook"/>
 		<menu_item_call label="推特…" name="Twitter"/>
 		<menu_item_call label="Flickr…" name="Flickr"/>
-		<menu label="語音變聲" name="VoiceMorphing">
-			<menu_item_check label="沒有變聲效果" name="NoVoiceMorphing"/>
-			<menu_item_check label="預覽……" name="Preview"/>
-			<menu_item_call label="訂閱……" name="Subscribe"/>
-			<menu_item_call label="付費會員獨享…" name="PremiumPerk"/>
-		</menu>
 		<menu_item_check label="姿勢…" name="Gestures"/>
 		<menu_item_check label="朋友" name="My Friends"/>
 		<menu_item_check label="群組" name="My Groups"/>