Android音频录制初始化失败
我正在为Android创建一个监听电话的应用程序。问题是初始化失败 我的日志:Android音频录制初始化失败,android,audiorecord,Android,Audiorecord,我正在为Android创建一个监听电话的应用程序。问题是初始化失败 我的日志: E/AudioRecord﹕ Could not get audio input for record source 3 E/AudioRecord-JNI﹕ Error creating AudioRecord instance: initialization check failed. E/android.media.AudioRecord﹕ Error code -20 when initializing na
E/AudioRecord﹕ Could not get audio input for record source 3
E/AudioRecord-JNI﹕ Error creating AudioRecord instance: initialization check failed.
E/android.media.AudioRecord﹕ Error code -20 when initializing native AudioRecord object.
我的代码:
public AudioRecord recorder;
private int sampleRate = 16000;
private int channelConfig = AudioFormat.CHANNEL_IN_MONO;
private int audioFormat = AudioFormat.ENCODING_PCM_16BIT;
int minBufSize = AudioRecord.getMinBufferSize(sampleRate, channelConfig, audioFormat);
recorder = new AudioRecord(MediaRecorder.AudioSource.VOICE_DOWNLINK, sampleRate, channelConfig, audioFormat, minBufSize * 10);
recorder.startRecording();
编辑:
我只想要下行链路您应该使用MediaRecorder instade of AudioRecord, Hear是录制音频并保存在SD卡中的一个示例
MediaRecorder myAudioRecorder;
outputFile = Environment.getExternalStorageDirectory().getAbsolutePath() + "/recording.3gp";
myAudioRecorder=new MediaRecorder();
myAudioRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
myAudioRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
myAudioRecorder.setAudioEncoder(MediaRecorder.OutputFormat.AMR_NB);
myAudioRecorder.setOutputFile(outputFile);
您可以使用下面的代码开始录制按钮单击事件
try {
myAudioRecorder.prepare();
myAudioRecorder.start();
}
catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
尝试使用其他配置(例如8000 Hz而不是16000 Hz)。您也可以尝试使用
VOICE\u CALL
作为音频源,而不是VOICE\u DOWNLINK
。这也会给你上行链路,但你正在测试的设备可能不支持只录制下行链路,因为语音通话录制是平台特有的功能。我不想将其保存到文件中。