java - Android:当SAMPLERATE设置为44100时，在未初始化的AudioRecord上调用startRecording()

将AudioRecord对象的采样率设置为44100时出现错误。当它是22050时，它可以正常工作。

02-16 10:45:45.099 24021-24021/com.vlad.jackcomms E/AudioRecord:frameCount 1024
02-16 16:45:45.099 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 16:45:45.099 24021-24021/com.vlad.jackcomms E/android.media.AudioRecord:初始化 native AudioRecord对象时出现错误代码-20。

02-16 10:45:45.109 24021-24021/com.vlad.jackcomms E/AndroidRuntime:致命

异常(exception):主要
流程:com.vlad.jackcomms，PID:24021
java.lang.IllegalStateException:在未初始化的AudioRecord上调用startRecording()。

以下是相关代码:

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

别忘了也要请求AUDIO_RECORD许可

private void checkRecordPermission() {

    if (ActivityCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO)
            != PackageManager.PERMISSION_GRANTED) {

        ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.RECORD_AUDIO},
                123);
    }