Java录制麦克风到字节数组和播放声音

1 回答

• 17

  编辑：这是一个稍微好一点的相同想法的版本，将在您录制时直接播放

  AudioFormat format = new AudioFormat(8000.0f, 16, 1, true, true);
      TargetDataLine microphone;
      SourceDataLine speakers;
      try {
          microphone = AudioSystem.getTargetDataLine(format);
  
          DataLine.Info info = new DataLine.Info(TargetDataLine.class, format);
          microphone = (TargetDataLine) AudioSystem.getLine(info);
          microphone.open(format);
  
          ByteArrayOutputStream out = new ByteArrayOutputStream();
          int numBytesRead;
          int CHUNK_SIZE = 1024;
          byte[] data = new byte[microphone.getBufferSize() / 5];
          microphone.start();
  
          int bytesRead = 0;
          DataLine.Info dataLineInfo = new DataLine.Info(SourceDataLine.class, format);
          speakers = (SourceDataLine) AudioSystem.getLine(dataLineInfo);
          speakers.open(format);
          speakers.start();
          while (bytesRead < 100000) {
              numBytesRead = microphone.read(data, 0, CHUNK_SIZE);
              bytesRead += numBytesRead;
              // write the mic data to a stream for use later
              out.write(data, 0, numBytesRead); 
              // write mic data to stream for immediate playback
              speakers.write(data, 0, numBytesRead);
          }
          speakers.drain();
          speakers.close();
          microphone.close();
      } catch (LineUnavailableException e) {
          e.printStackTrace();
      }
  

  忍受我，因为这非常粗糙，但它通过扬声器播放录制的音频;

  为了使声音更好，您需要添加线程，并优化输入/输出流 .

  http://www.developer.com/java/other/article.php/1579071/Java-Sound-Getting-Started-Part-2-Capture-Using-Specified-Mixer.htm

  package audio;
  
  import java.io.ByteArrayInputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.InputStream;
  
  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;
  import javax.sound.sampled.TargetDataLine;
  
  public class AudioTest {
  
      public static void main(String[] args) {
  
          AudioFormat format = new AudioFormat(8000.0f, 16, 1, true, true);
          TargetDataLine microphone;
          AudioInputStream audioInputStream;
          SourceDataLine sourceDataLine;
          try {
              microphone = AudioSystem.getTargetDataLine(format);
  
              DataLine.Info info = new DataLine.Info(TargetDataLine.class, format);
              microphone = (TargetDataLine) AudioSystem.getLine(info);
              microphone.open(format);
  
              ByteArrayOutputStream out = new ByteArrayOutputStream();
              int numBytesRead;
              int CHUNK_SIZE = 1024;
              byte[] data = new byte[microphone.getBufferSize() / 5];
              microphone.start();
  
              int bytesRead = 0;
  
              try {
                  while (bytesRead < 100000) { // Just so I can test if recording
                                                  // my mic works...
                      numBytesRead = microphone.read(data, 0, CHUNK_SIZE);
                      bytesRead = bytesRead + numBytesRead;
                      System.out.println(bytesRead);
                      out.write(data, 0, numBytesRead);
                  }
              } catch (Exception e) {
                  e.printStackTrace();
              }
              byte audioData[] = out.toByteArray();
              // Get an input stream on the byte array
              // containing the data
              InputStream byteArrayInputStream = new ByteArrayInputStream(
                      audioData);
              audioInputStream = new AudioInputStream(byteArrayInputStream,format, audioData.length / format.getFrameSize());
              DataLine.Info dataLineInfo = new DataLine.Info(SourceDataLine.class, format);
              sourceDataLine = (SourceDataLine) AudioSystem.getLine(dataLineInfo);
              sourceDataLine.open(format);
              sourceDataLine.start();
              int cnt = 0;
              byte tempBuffer[] = new byte[10000];
              try {
                  while ((cnt = audioInputStream.read(tempBuffer, 0,tempBuffer.length)) != -1) {
                      if (cnt > 0) {
                          // Write data to the internal buffer of
                          // the data line where it will be
                          // delivered to the speaker.
                          sourceDataLine.write(tempBuffer, 0, cnt);
                      }// end if
                  }
              } catch (IOException e) {
                  e.printStackTrace();
              }
              // Block and wait for internal buffer of the
              // data line to empty.
              sourceDataLine.drain();
              sourceDataLine.close();
              microphone.close();
          } catch (LineUnavailableException e) {
              e.printStackTrace();
          }
      }
  }
  

  回复于 2024-04-24T17:11:00+08:00