Java调用麦克风话筒和扬声器喇叭进行实时播放
Java调用麦克风和扬声器实时播放
```
package com.zhenzhigu.demo;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.SourceDataLine;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.FloatControl;
import javax.sound.sampled.TargetDataLine;
public class RecordAndPlay {
static volatile boolean stop=false;
public static void main(String[] args) {
Play();
}
//播放音频文件
public static void Play() {
try {
AudioFormat audioFormat =
// new AudioFormat(AudioFormat.Encoding.PCM_SIGNED, 44100F,
// 8, 1, 1, 44100F, false);
new AudioFormat(AudioFormat.Encoding.PCM_SIGNED,44100F, 16, 2, 4,
44100F, true);
DataLine.Info info = new DataLine.Info(TargetDataLine.class, audioFormat);
TargetDataLine targetDataLine = (TargetDataLine) AudioSystem.getLine(info);
targetDataLine.open(audioFormat);
final SourceDataLine sourceDataLine;
info = new DataLine.Info(SourceDataLine.class, audioFormat);
sourceDataLine = (SourceDataLine) AudioSystem.getLine(info);
sourceDataLine.open(audioFormat);
targetDataLine.start();
sourceDataLine.start();
FloatControl fc=(FloatControl)sourceDataLine.getControl(FloatControl.Type.MASTER_GAIN);
double value=2;
float dB = (float)
(Math.log(value==0.0?0.0001:value)/Math.log(10.0)20.0);
fc.setValue(dB);
int nByte = 0;
final int bufSize=4100;
byte[] buffer = new byte[bufSize];
while (nByte != -1) {
//System.in.read();
nByte = targetDataLine.read(buffer, 0, bufSize);
sourceDataLine.write(buffer, 0, nByte);
}
sourceDataLine.stop();
} catch (Exception e) {
e.printStackTrace();
}
}
}
```
Java调用麦克风和扬声器实时播放