EXT-3517: Update mic/speaker volume scaling.

We now scale the mic and speaker volume levels to the Vivox range 30
to 70 (default of 50), as recommended by Vivox for their V3 SDK.

1 files changed, 4 insertions, 12 deletions

diff --git a/indra/newview/llvoiceclient.cpp b/indra/newview/llvoiceclient.cpp
index 1889ca78c3..cfa1f05ec0 100644
--- a/indra/newview/llvoiceclient.cpp
+++ b/indra/newview/llvoiceclient.cpp
@@ -113,23 +113,15 @@ static void setUUIDFromStringHash(LLUUID &uuid, const std::string &str)
 static int scale_mic_volume(float volume)
 {
 	// incoming volume has the range [0.0 ... 2.0], with 1.0 as the default.
-	// Map it as follows: 0.0 -> 40, 1.0 -> 44, 2.0 -> 75
-
-	volume -= 1.0f;		// offset volume to the range [-1.0 ... 1.0], with 0 at the default.
-	int scaled_volume = 44;	// offset scaled_volume by its default level
-	if(volume < 0.0f)
-		scaled_volume += ((int)(volume * 4.0f));	// (44 - 40)
-	else
-		scaled_volume += ((int)(volume * 31.0f));	// (75 - 44)
-	
-	return scaled_volume;
+	// Map it to Vivox levels as follows: 0.0 -> 30, 1.0 -> 50, 2.0 -> 70
+	return 30 + (int)(volume * 20.0f);
 }
 
 static int scale_speaker_volume(float volume)
 {
 	// incoming volume has the range [0.0 ... 1.0], with 0.5 as the default.
-	// Map it as follows: 0.0 -> 0, 0.5 -> 50, 1.0 -> 100
-	return (int)(volume * 100.0f);
+	// Map it to Vivox levels as follows: 0.0 -> 30, 0.5 -> 50, 1.0 -> 70
+	return 30 + (int)(volume * 40.0f);
 }
 
 class LLViewerVoiceAccountProvisionResponder :