Java-播放录制的音频-LineUnavailableException
我正在用Java将一些音频录制到ByteArrayOutputStream中,但当我尝试播放该字节数组时,会出现LineUnavailableException。这是我播放音频的代码:Java-播放录制的音频-LineUnavailableException,java,audio,Java,Audio,我正在用Java将一些音频录制到ByteArrayOutputStream中,但当我尝试播放该字节数组时,会出现LineUnavailableException。这是我播放音频的代码: public void playTone(ByteArrayOutputStream try { AudioFormat format = new AudioFormat(44100, 8, 2, true, true); DataLine.Info info = new
public void playTone(ByteArrayOutputStream
try {
AudioFormat format = new AudioFormat(44100, 8, 2, true, true);
DataLine.Info info = new DataLine.Info(TargetDataLine.class, format);
byte audio[] = note.toByteArray();
InputStream input = new ByteArrayInputStream(audio);
TargetDataLine line1 = (TargetDataLine) AudioSystem.getLine(info);
...
} catch (LineUnavailableException e1) {
e1.printStackTrace();
}
}
这是我得到的一个例外:
javax.sound.sampled.LineUnavailableException: line with format PCM_SIGNED 44100.0 Hz, 8 bit, stereo, 2 bytes/frame, not supported.
现在我有疑问地读到AudioFormat的参数可能是错误的,但在这个问题中,用户使用24(位)作为第二个参数,其中只支持8和16
有人知道我做错了什么吗
编辑:
根据下面的答案,我更改了以下内容,因为我没有文件,只有ByteArrayOutputStream:
AudioFormat format = new AudioFormat(44100, 16, 2, true, true);
byte audio[] = note.toByteArray();
InputStream input = new ByteArrayInputStream(audio);
audioStream = new AudioInputStream(input, format, audio.length / format.getFrameSize());
// instead of
// audioStream = AudioSystem.getAudioInputStream(soundFile);
你可以从中明确你的概念。我想这会对你有所帮助
import java.io.File;
import java.io.IOException;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.SourceDataLine;
public class MakeSound {
private final int BUFFER_SIZE = 128000;
private File soundFile;
private AudioInputStream audioStream;
private AudioFormat audioFormat;
private SourceDataLine sourceLine;
/**
* @param filename the name of the file that is going to be played
*/
public void playSound(String filename){
String strFilename = filename;
try {
soundFile = new File(strFilename);
} catch (Exception e) {
e.printStackTrace();
System.exit(1);
}
try {
audioStream = AudioSystem.getAudioInputStream(soundFile);
} catch (Exception e){
e.printStackTrace();
System.exit(1);
}
audioFormat = audioStream.getFormat();
DataLine.Info info = new DataLine.Info(SourceDataLine.class, audioFormat);
try {
sourceLine = (SourceDataLine) AudioSystem.getLine(info);
sourceLine.open(audioFormat);
} catch (LineUnavailableException e) {
e.printStackTrace();
System.exit(1);
} catch (Exception e) {
e.printStackTrace();
System.exit(1);
}
sourceLine.start();
int nBytesRead = 0;
byte[] abData = new byte[BUFFER_SIZE];
while (nBytesRead != -1) {
try {
nBytesRead = audioStream.read(abData, 0, abData.length);
} catch (IOException e) {
e.printStackTrace();
}
if (nBytesRead >= 0) {
@SuppressWarnings("unused")
int nBytesWritten = sourceLine.write(abData, 0, nBytesRead);
}
}
sourceLine.drain();
sourceLine.close();
}
}
谢谢,因为我没有文件,所以我确实需要做一些更改,但我能够更改它,它现在正在工作。我将用我在你的代码中实际更改的内容编辑我的第一篇文章,如果其他人也需要它。