当fm收音机正在播放时，无法启动AudioRecord / AudioTrack

Question

_audioRecord = new AudioRecord(
                            AudioSource.VOICE_COMMUNICATION,
                            sampleRate,
                            AudioFormat.CHANNEL_IN_MONO,
                            AudioFormat.ENCODING_PCM_16BIT,
                            recBufSize);

_audioTrack = new AudioTrack(
                            AudioManager.STREAM_VOICE_CALL,
                            sampleRate,
                            AudioFormat.CHANNEL_OUT_MONO,
                            AudioFormat.ENCODING_PCM_16BIT,
                            playBufSize, AudioTrack.MODE_STREAM);

当fm电台应用程序未运行时，它运行良好。请帮助，谢谢