fix(voice): allow stereo mics at 64 kbps and in the mic test (#3110)

fluxer_app/src/features/user/components/modals/tabs/UserVoiceTab.tsx

@@ -715,6 +715,7 @@ export const VoiceTab: React.FC<VoiceTabProps> = observer(({voiceSettings, autoR
 						echoCancellation,
 						autoGainControl,
 						voiceProcessingMode,
+						stereoMicrophone: isStereoMicrophoneEnabled(),
 					}}
 					data-flx="user.voice-tab.mic-test-section"
 				/>

fluxer_app/src/features/user/components/modals/tabs/hooks/MicTestAudioGraph.ts

@@ -1,7 +1,11 @@
 // SPDX-License-Identifier: AGPL-3.0-or-later
 
 import {createVoiceSoftClipNode} from '@app/features/voice/engine/VoiceSharedAudioContext';
-import {type VoiceInputConfig, VoiceInputGraph} from '@app/features/voice/utils/VoiceInputProcessor';
+import {
+	type VoiceInputChannelCount,
+	type VoiceInputConfig,
+	VoiceInputGraph,
+} from '@app/features/voice/utils/VoiceInputProcessor';
 
 export interface MicTestAudioGraph {
 	analyser: AnalyserNode;
@@ -16,6 +20,7 @@ interface CreateMicTestAudioGraphOptions {
 	signal: AbortSignal;
 	source: MediaStreamAudioSourceNode;
 	sourceTrack: MediaStreamTrack;
+	channelCount: VoiceInputChannelCount;
 	resolveConfig: () => VoiceInputConfig;
 	outputGain: number;
 	playbackTarget: AudioNode;
@@ -26,6 +31,7 @@ export function createMicTestAudioGraph({
 	signal,
 	source,
 	sourceTrack,
+	channelCount,
 	resolveConfig,
 	outputGain,
 	playbackTarget,
@@ -33,7 +39,7 @@ export function createMicTestAudioGraph({
 }: CreateMicTestAudioGraphOptions): MicTestAudioGraph {
 	signal.throwIfAborted();
 	const audioContext = source.context as AudioContext;
-	const inputGraph = new VoiceInputGraph(audioContext, 1, resolveConfig);
+	const inputGraph = new VoiceInputGraph(audioContext, channelCount, resolveConfig);
 	inputGraph.setSourceNode(sourceTrack, source);
 	const analyser = audioContext.createAnalyser();
 	const delay = audioContext.createDelay(Math.max(1, playbackDelaySeconds + 0.25));

fluxer_app/src/features/user/components/modals/tabs/hooks/useMicTest.tsx

@@ -36,6 +36,7 @@ export interface MicTestSettings {
 	echoCancellation: boolean;
 	autoGainControl: boolean;
 	voiceProcessingMode: VoiceProcessingMode;
+	stereoMicrophone: boolean;
 }
 
 function readEffectiveNoiseSuppressionBackend(): VoiceNoiseSuppressionBackend {
@@ -77,6 +78,7 @@ export const useMicTest = (settings: MicTestSettings) => {
 				echoCancellation: settings.echoCancellation,
 				autoGainControl: settings.autoGainControl,
 				voiceProcessingMode: settings.voiceProcessingMode,
+				stereoMicrophone: settings.stereoMicrophone,
 				noiseSuppressionBackend,
 			}),
 		[
@@ -84,6 +86,7 @@ export const useMicTest = (settings: MicTestSettings) => {
 			settings.echoCancellation,
 			settings.inputDeviceId,
 			settings.outputDeviceId,
+			settings.stereoMicrophone,
 			settings.voiceProcessingMode,
 			noiseSuppressionBackend,
 		],
@@ -177,12 +180,17 @@ export const useMicTest = (settings: MicTestSettings) => {
 					return exhaustive;
 				}
 			}
-			const profile = resolveVoiceProcessing(settings, readEffectiveNoiseSuppressionBackend(), false);
+			const profile = resolveVoiceProcessing(
+				settings,
+				readEffectiveNoiseSuppressionBackend(),
+				settings.stereoMicrophone,
+			);
 			const baseAudioConstraints: MediaTrackConstraints & {voiceIsolation?: boolean} = {
 				echoCancellation: profile.echoCancellation,
 				noiseSuppression: profile.browserNoiseSuppression,
 				autoGainControl: profile.autoGainControl,
 				voiceIsolation: false,
+				...(profile.stereoCapture ? {channelCount: {ideal: 2}} : {}),
 			};
 			const useExactDeviceId = settings.inputDeviceId !== 'default';
 			const buildAudioConstraints = (exact: boolean): MediaTrackConstraints =>
@@ -227,6 +235,7 @@ export const useMicTest = (settings: MicTestSettings) => {
 				signal: controller.signal,
 				source: acquired.source,
 				sourceTrack,
+				channelCount: profile.stereoCapture ? 2 : 1,
 				resolveConfig: () => ({
 					backend: resolveVoiceProcessing(settings, readEffectiveNoiseSuppressionBackend(), false)
 						.noiseSuppressionBackend,