Android 左右声道与麦克风录音分离
我试图从麦克风录制,并将录制的数据单独发送到左声道,右声道上有零,但我的技术似乎不起作用。。 我正在使用PCM 16和单声道模式的录音和音轨,我似乎做错了什么Android 左右声道与麦克风录音分离,android,Android,我试图从麦克风录制,并将录制的数据单独发送到左声道,右声道上有零,但我的技术似乎不起作用。。 我正在使用PCM 16和单声道模式的录音和音轨,我似乎做错了什么 package com.example.leftrighttest; import android.media.AudioFormat; import android.media.AudioManager; import android.media.AudioRecord; import android.media.AudioTrack
package com.example.leftrighttest;
import android.media.AudioFormat;
import android.media.AudioManager;
import android.media.AudioRecord;
import android.media.AudioTrack;
import android.media.MediaRecorder;
import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
int freq=44100;
final int bufferSize = (AudioRecord.getMinBufferSize(freq,AudioFormat.CHANNEL_IN_MONO,
AudioFormat.ENCODING_PCM_16BIT ));
AudioRecord audioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC, freq,AudioFormat.CHANNEL_IN_MONO,
AudioFormat.ENCODING_PCM_16BIT, bufferSize );
AudioTrack audioTrack = new AudioTrack(AudioManager.STREAM_MUSIC,
(int) freq,AudioFormat.CHANNEL_OUT_MONO,
AudioFormat.ENCODING_PCM_16BIT, bufferSize,
AudioTrack.MODE_STREAM);
audioTrack.setPlaybackRate(freq);
final byte[] buffer = new byte[bufferSize];
audioRecord.startRecording();
byte[] byteBufferFinal = new byte[bufferSize*2];
//LL RR LL RR LL RR
while(true)
{
audioRecord.read(buffer, 0, bufferSize);
for(int k = 0, index = 0; index < byteBufferFinal.length - 4; k=k+2){
byteBufferFinal[index] = buffer[k]; // LEFT {0,1/4,5/8,9/12,13;...}
//System.out.println(byteBufferFinal[index]);
byteBufferFinal[index+1] = buffer[k+1];
// System.out.println(byteBufferFinal[index+1]);
index = index + 2;
byteBufferFinal[index] =0; //byteBuffer2[k]; // RIGHT {2,3/6,7/10,11;...}
//System.out.println(byteBufferFinal[index]);
byteBufferFinal[index+1] =0;// byteBuffer2[k+1];
// System.out.println(byteBufferFinal[index+1]);
index = index + 2;
}
audioTrack.write( byteBufferFinal, 0, bufferSize*2);
audioTrack.play();
}
}
}
package com.example.leftrighttest;
导入android.media.AudioFormat;
导入android.media.AudioManager;
导入android.media.AudioRecord;
导入android.media.AudioTrack;
导入android.media.MediaRecorder;
导入android.os.Bundle;
导入android.app.Activity;
导入android.util.Log;
导入android.view.Menu;
公共类MainActivity扩展了活动{
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
intfreq=44100;
最终int bufferSize=(音频记录.getMinBufferSize(频率,音频格式.CHANNEL)在单声道中,
AudioFormat.ENCODING_PCM_16BIT));
AudioRecord AudioRecord=新的录音(单声道中的MediaRecorder.AudioSource.MIC、freq、AudioFormat.CHANNEL\u、,
AudioFormat.ENCODING_PCM_16位,缓冲区大小);
AudioTrack AudioTrack=新的AudioTrack(AudioManager.STREAM_MUSIC,
(int)频率,音频格式。通道输出单声道,
AudioFormat.ENCODING_PCM_16位,缓冲区大小,
音频跟踪模式(音频流);
audioTrack.setPlaybackRate(频率);
最终字节[]缓冲区=新字节[bufferSize];
录音。开始录制();
byte[]byteBufferFinal=新字节[bufferSize*2];
//哎哟,哎哟,哎哟,哎哟
while(true)
{
音频记录读取(缓冲区,0,缓冲区大小);
对于(int k=0,index=0;index
我想好了,所以正确的解决方案是1)将模式从单声道更改为立体声2)读取缓冲区,格式如下(L,L,R,R,L,L,L,R,R…),因此每两个字节发送到一个通道(pcm 16),然后我将要取消的通道设置为零,因此如果我只想让左通道工作,我的缓冲区将被取消(L,L,0,0,L,L,0,0,…)您正在创建单声道音轨,因此它只有一个频道。是的,您说得对,谢谢(y)