问题描述
Android:我想从麦克风读取缓冲区,以便可以对其执行处理,以下是我的代码
Android: I want to read buffers from mic so that i can perform process on it, Following is my code
int sampleRateInHz = 8000;// 44100, 22050 and 11025
int channelConfig = AudioFormat.CHANNEL_CONFIGURATION_MONO;
int audioFormat = AudioFormat.ENCODING_PCM_16BIT;
//int bufferSize =11025 +
int bufferSize = AudioRecord.getMinBufferSize(sampleRateInHz,channelConfig, audioFormat);
short[] buffer = new short[bufferSize];
AudioRecord audioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC, sampleRateInHz,channelConfig, audioFormat, bufferSize);
if(audioRecord.getState()== AudioRecord.STATE_INITIALIZED){
audioRecord.startRecording();
Log.e("recording", "before");
boolean flag = true;
while (flag) {
int bufferReadResult = audioRecord.read(buffer, 0, bufferSize);
System.out.println(buffer);
}
audioRecord.stop();
audioRecord.release();
}
Log.e("recording", "stopeed");
<uses-permission android:name="android.permission.RECORD_AUDIO"></uses-permission>
每次尝试测试程序时都会出现以下错误
I get following error every time i try to test the program
06-04 00:18:17.222:E / AudioRecord-Java(488):[android.media.AudioRecord]初始化本机AudioRecord对象时出现错误代码-20。
06-04 00:18:17.222: E/AudioRecord-Java(488): [ android.media.AudioRecord ] Error code -20 when initializing native AudioRecord object.
推荐答案
据我了解,CHANNEL_CONFIGURATION_MONO已过时,当您读入缓冲区时,应该改用CHANNEL_IN_MONO。我在实例化AudioRecord对象时遇到了类似的问题,事实证明这是我的解决方案。
From what I understand, CHANNEL_CONFIGURATION_MONO is depreciated and you should use instead CHANNEL_IN_MONO when reading into the buffer. I had a similar problem with instantiating the AudioRecord object and this turned out to be the solution for me.
这篇关于Android:初始化本机AudioRecord对象时出现AudioRecord错误代码-20的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!