trying a new method

pi/roverd/config.go

@@ -143,7 +143,7 @@ func LoadConfig(path string) (*Config, error) {
 		Audio: AudioConfig{
 			CaptureEnabled: false,
 			CaptureDevice:  "plughw:0,0",
-			SampleRate:     48000,
+			SampleRate:     16000,
 			Channels:       1,
 			Bitrate:        24000,
 			TTSEnabled:     false,

pi/roverd/media_env.go

@@ -25,8 +25,20 @@ func UpdatePublisherEnv(media MediaConfig, audio AudioConfig) error {
 	fmt.Fprintf(&buf, "VIDEO_HEIGHT=%d\n", media.VideoHeight)
 	fmt.Fprintf(&buf, "VIDEO_FPS=%d\n", media.VideoFPS)
 	fmt.Fprintf(&buf, "VIDEO_BITRATE=%d\n", media.VideoBitrate)
-	// Disable mic streaming; audio is handled locally for TTS only.
-	fmt.Fprintf(&buf, "AUDIO_ENABLE=0\n")
+	audioDevice := audio.CaptureDevice
+	if audioDevice == "" {
+		audioDevice = "plughw:0,0"
+	}
+	if audio.SampleRate <= 0 {
+		audio.SampleRate = 16000
+	}
+	if audio.Channels <= 0 {
+		audio.Channels = 1
+	}
+	fmt.Fprintf(&buf, "AUDIO_ENABLE=%d\n", boolToInt(audio.CaptureEnabled))
+	fmt.Fprintf(&buf, "AUDIO_DEVICE=%s\n", audioDevice)
+	fmt.Fprintf(&buf, "AUDIO_RATE=%d\n", audio.SampleRate)
+	fmt.Fprintf(&buf, "AUDIO_CHANNELS=%d\n", audio.Channels)
 	if err := os.WriteFile(publisherEnvPath, buf.Bytes(), 0o640); err != nil {
 		return err
 	}

pi/roverd/roverd.sample.yaml

@@ -40,7 +40,7 @@ cameraServo:
 audio:
   captureEnabled: false
   captureDevice: plughw:0,0
-  sampleRate: 48000
+  sampleRate: 16000
   channels: 1
   bitrate: 24000
   ttsEnabled: false