Question

我是编程新手，我想了解更多。

我想实时录制麦克风的声音。以下是我的录音代码。

while (true) {
    int numBytesRead =  line.read(data, 0, data.length);
    out.write(data, 0, numBytesRead);
}

我尝试在那里输入一些代码并且我必须播放一些数据块，但几秒钟后，录制延迟约3秒钟。此外，当我试图说话时，它会循环播放我试图说的话

while (true) {

    int numBytesRead =  line.read(data, 0, data.length);
    out.write(data, 0, numBytesRead);
    try {
        byte audio[] = out.toByteArray();
        InputStream input = new ByteArrayInputStream(audio);
        final SourceDataLine line1 = (SourceDataLine) AudioSystem.getLine(info1);
        final AudioInputStream ais = new AudioInputStream(input, format, audio.length / format.getFrameSize());
        int bufferSize = (int) format.getSampleRate() * format.getFrameSize();
        line1.open(format);
        line1.start();
        byte buffer[] = new byte[bufferSize];
        try {
            while (true) {
                numBytesRead = ais.read(buffer, 0, buffer.length);
                if (numBytesRead == -1) break;
                line1.write(buffer, 0, numBytesRead);
            }
        } catch (IOException e) {
            System.err.println("I/O problems: " + e);
            System.exit(-3);
        }
    }

有人可以帮助我完成我的项目。

Answer 1

先生，谢谢你的答复。但我尝试将此行添加到我的代码中，播放工作

while (numBytesRemaining>0){
  numBytesRemaining-=line1.write(data,0,numBytesRemaining);
               }

谢谢你的帮助先生

Answer 2

为什么不使用Clip来读取录制的声音。

wavdata = out.toByteArray();
AudioInputStream ais = new AudioInputStream(new ByteArrayInputStream(wavdata), WAVFormat(), wavdata.length / WAVFormat().getFrameSize());
format = ais.getFormat();
info = new DataLine.Info(Clip.class, format);
Clip clip = (Clip) AudioSystem.getLine(info);
clip.open(ais);
//this is for playing
clip.start();
//this is for stopping or pause use it on the pause or stop button.
//clip.stop();

这是WAVFormat（）

private AudioFormat WAVFormat() {

    int channels = 2;
    Encoding encoding = AudioFormat.Encoding.PCM_SIGNED;
    float sampleRate = rateconstant;
    int frameSize = framesize;
    float frameRate = rateconstant;
    int sampleSizeInBits = 16;
    boolean bigEndian = false;

    return new AudioFormat(encoding, sampleRate, sampleSizeInBits, channels, frameSize, frameRate, bigEndian);

}

希望有所帮助

录制Java后如何同时播放声音

2 个答案: