web: add more audio quality options

Also replace deprecated stereo option.

docker-compose.yml

@@ -16,6 +16,7 @@ services:
             - AMPLITUDE_ID
             - ANALYTICS_SCRIPT_URLS
             - ANALYTICS_WHITELISTED_EVENTS
+            - AUDIO_QUALITY_OPUS_BITRATE
             - CALLSTATS_CUSTOM_SCRIPT_URL
             - CALLSTATS_ID
             - CALLSTATS_SECRET
@@ -59,6 +60,7 @@ services:
             - ENABLE_LIPSYNC
             - ENABLE_NO_AUDIO_DETECTION
             - ENABLE_NOISY_MIC_DETECTION
+            - ENABLE_OPUS_RED
             - ENABLE_PREJOIN_PAGE
             - ENABLE_P2P
             - ENABLE_WELCOME_PAGE

web/rootfs/defaults/settings-config.js

@@ -17,6 +17,7 @@
 {{ $ENABLE_SIMULCAST := .Env.ENABLE_SIMULCAST | default "true" | toBool -}}
 {{ $ENABLE_STATS_ID := .Env.ENABLE_STATS_ID | default "false" | toBool -}}
 {{ $ENABLE_STEREO := .Env.ENABLE_STEREO | default "false" | toBool -}}
+{{ $ENABLE_OPUS_RED := .Env.ENABLE_OPUS_RED | default "false" | toBool -}}
 {{ $ENABLE_TALK_WHILE_MUTED := .Env.ENABLE_TALK_WHILE_MUTED | default "false" | toBool -}}
 {{ $ENABLE_TCC := .Env.ENABLE_TCC | default "true" | toBool -}}
 {{ $ENABLE_TRANSCRIPTIONS := .Env.ENABLE_TRANSCRIPTIONS | default "false" | toBool -}}
@@ -71,11 +72,19 @@ config.desktopSharingFrameRate = { min: {{ $DESKTOP_SHARING_FRAMERATE_MIN }}, ma
 config.enableNoAudioDetection = {{ $ENABLE_NO_AUDIO_DETECTION }};
 config.enableTalkWhileMuted = {{ $ENABLE_TALK_WHILE_MUTED }};
 config.disableAP = {{ not $ENABLE_AUDIO_PROCESSING }};
-config.stereo = {{ $ENABLE_STEREO }};
+
+if (!config.hasOwnProperty('audioQuality')) config.audioQuality = {};
+config.audioQuality.stereo = {{ $ENABLE_STEREO }};
+
+{{ if .Env.AUDIO_QUALITY_OPUS_BITRATE -}}
+config.audioQuality.opusMaxAverageBitrate = '{{ .Env.AUDIO_QUALITY_OPUS_BITRATE }}';
+{{ end -}}
+
 config.startAudioOnly = {{ $START_AUDIO_ONLY }};
 config.startAudioMuted = {{ $START_AUDIO_MUTED }};
 config.startWithAudioMuted = {{ $START_WITH_AUDIO_MUTED }};
 config.startSilent = {{ $START_SILENT }};
+config.enableOpusRed = {{ $ENABLE_OPUS_RED }};
 config.disableAudioLevels = {{ $DISABLE_AUDIO_LEVELS }};
 config.enableNoisyMicDetection = {{ $ENABLE_NOISY_MIC_DETECTION }};