当我将 AudioRecord 对象的采样率设置为 44100 时出现错误。当它是 22050 时,它工作正常。
02-16 10:45:45.099 24021-24021/com.vlad.jackcomms E/AudioRecord:frameCount 1024 < minFrameCount 1792
02-16 10:45:45.099 24021-24021/com.vlad.jackcomms E/AudioRecord-JNI:创建 AudioRecord 实例时出错:初始化检查失败。
02-16 10:45:45.099 24021-24021/com.vlad.jackcomms E/android.media.AudioRecord:初始化原生AudioRecord对象时错误代码-20。
02-16 10:45:45.109 24021-24021/com.vlad.jackcomms E/AndroidRuntime:致命
异常(exception):主要 进程:com.vlad.jackcomms,PID:24021 java.lang.IllegalStateException: startRecording() 在未初始化的 AudioRecord 上调用。
相关代码如下:
private static final int RECORDER_SAMPLERATE = 22050*2;
private static final int RECORDER_CHANNELS = AudioFormat.CHANNEL_IN_MONO;
private static final int RECORDER_AUDIO_ENCODING = AudioFormat.ENCODING_PCM_16BIT;
recorder = new AudioRecord(MediaRecorder.AudioSource.MIC,
RECORDER_SAMPLERATE, RECORDER_CHANNELS,
RECORDER_AUDIO_ENCODING, BufferElements2Rec * BytesPerElement);
recorder.startRecording();
最佳答案
别忘了请求 AUDIO_RECORD 权限
private void checkRecordPermission() {
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO)
!= PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.RECORD_AUDIO},
123);
}
关于java - Android:当 SAMPLERATE 设置为 44100 时,startRecording() 在未初始化的 AudioRecord 上调用,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/28539717/