diff --git a/media/libaudioclient/AudioSystem.cpp b/media/libaudioclient/AudioSystem.cpp
index 7783ad3..1c4a80e 100644
--- a/media/libaudioclient/AudioSystem.cpp
+++ b/media/libaudioclient/AudioSystem.cpp
@@ -1273,6 +1273,13 @@
     return aps->getStreamVolumeDB(stream, index, device);
 }
 
+status_t AudioSystem::getMicrophones(std::vector<media::MicrophoneInfo> *microphones)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    return af->getMicrophones(microphones);
+}
+
 // ---------------------------------------------------------------------------
 
 int AudioSystem::AudioPolicyServiceClient::addAudioPortCallback(