是否可以通过 AIDE-IDE 应用程序直接在我的手机上开发使用 Android Audiorecord 的 Java 应用程序?感谢您的关注。
问问题
47 次
1 回答
0
请尝试以下代码:
//https://gist.github.com/nileshdarade/abd9a395821849b587583fafa00280a4
public static AudioRecord findAudioRecord(Context context) {
AudioRecord recorder = null;
try {
AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
int _rate = Integer.parseInt(audioManager.getProperty(AudioManager.PROPERTY_OUTPUT_SAMPLE_RATE));
int bufferSize = Integer.parseInt(audioManager.getProperty(AudioManager.PROPERTY_OUTPUT_FRAMES_PER_BUFFER));
for (short audioFormat : new short[]{AudioFormat.ENCODING_PCM_8BIT, AudioFormat.ENCODING_PCM_16BIT}) {
for (short channelConfig : new short[]{AudioFormat.CHANNEL_IN_MONO, AudioFormat.CHANNEL_IN_STEREO}) {
Log.d(TAG, "Attempting rate " + _rate + "Hz, bits: " + audioFormat + ", channel: "
+ channelConfig);
int bufferSize = AudioRecord.getMinBufferSize(_rate, channelConfig, audioFormat);
if (bufferSize != AudioRecord.ERROR_BAD_VALUE) {
// check if we can instantiate and have a success
recorder = new AudioRecord(MediaRecorder.AudioSource.DEFAULT, _rate, channelConfig, audioFormat, bufferSize);
if (recorder.getState() == AudioRecord.STATE_INITIALIZED) {
return recorder;
}
}
}
}
} catch (Exception e) {
Log.e(TAG, "Exception, keep trying.", e);
}
for (int rate : new int[]{8000, 11025, 16000, 22050, 44100}) {
for (short audioFormat : new short[]{AudioFormat.ENCODING_PCM_8BIT, AudioFormat.ENCODING_PCM_16BIT}) {
for (short channelConfig : new short[]{AudioFormat.CHANNEL_IN_MONO, AudioFormat.CHANNEL_IN_STEREO}) {
try {
Log.d(TAG, "Attempting rate " + rate + "Hz, bits: " + audioFormat + ", channel: "
+ channelConfig);
bufferSize = AudioRecord.getMinBufferSize(rate, channelConfig, audioFormat);
if (bufferSize != AudioRecord.ERROR_BAD_VALUE) {
// check if we can instantiate and have a success
recorder = new AudioRecord(MediaRecorder.AudioSource.DEFAULT, rate, channelConfig, audioFormat, bufferSize);
if (recorder.getState() == AudioRecord.STATE_INITIALIZED) {
return recorder;
}
}
} catch (Exception e) {
Log.e(TAG, rate + "Exception, keep trying.", e);
}
}
}
}
return null;
}
于 2018-07-01T08:51:53.743 回答