iOS: configAudioSystem(): Sets AVAudioSessionCategoryOptionOverrideMu…

…tedMicrophoneInterruption option to allow for simultaneous playback & audio input
birdofpreyru · Sep 13, 2023 · 810d999 · 810d999
1 parent dbdf8c6
commit 810d999
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Showing 2 changed files with 18 additions and 3 deletions.
diff --git a/example/src/App.tsx b/example/src/App.tsx
@@ -86,6 +86,7 @@ export default function App() {
       const ia = await getInputAvailable();
       setInputAvailable(ia ? 'YES' : 'NO');
       if (ia) {
+        await configAudioSystem();
         stream = new InputAudioStream(
           AUDIO_SOURCES.RAW,
           SAMPLE_RATE_BASE,

diff --git a/ios/ReactNativeAudio.mm b/ios/ReactNativeAudio.mm
@@ -89,10 +89,24 @@ - (dispatch_queue_t)methodQueue
   }
 
   NSError *error = nil;
+
+  AVAudioSessionCategoryOptions options =
+    AVAudioSessionCategoryOptionAllowBluetooth |
+    AVAudioSessionCategoryOptionAllowBluetoothA2DP |
+    AVAudioSessionCategoryOptionDefaultToSpeaker;
+
+  // NOTE: The AVAudioSessionCategoryOptionOverrideMutedMicrophoneInterruption
+  // option triggers an error if one attempts to set it for a category that does
+  // not support audio input. For categories that do support it, it allows for
+  // simultaneous playback and audio input.
+  if (category == AVAudioSessionCategoryPlayAndRecord) {
+    if (@available(iOS 14.5, *)) {
+      options |= AVAudioSessionCategoryOptionOverrideMutedMicrophoneInterruption;
+    }
+  }
+
   BOOL res = [audioSession setCategory:category
-                           withOptions:(AVAudioSessionCategoryOptionAllowBluetooth |
-                                        AVAudioSessionCategoryOptionAllowBluetoothA2DP |
-                                        AVAudioSessionCategoryOptionDefaultToSpeaker)
+                           withOptions:options
                                  error:&error];
 
   // TODO: Currently here, and in the next rejection, although we include