java - Android 将两个音频文件合二为一

Question

我从用户的麦克风中保存了两个 .3gp（或 .wav）音频文件。如何将这两个音频文件在代码中连接到一个文件中？谢谢。

Answer 1

结合两个 wav 文件：

    import java.io.File;
import java.io.IOException;
import java.io.SequenceInputStream;
import javax.sound.sampled.AudioFileFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;

public class WavAppender {
    public static void main(String[] args) {
        String wavFile1 = "D:\\wav1.wav";
        String wavFile2 = "D:\\wav2.wav";

        try {
            AudioInputStream clip1 = AudioSystem.getAudioInputStream(new File(wavFile1));
            AudioInputStream clip2 = AudioSystem.getAudioInputStream(new File(wavFile2));

            AudioInputStream appendedFiles = 
                            new AudioInputStream(
                                new SequenceInputStream(clip1, clip2),     
                                clip1.getFormat(), 
                                clip1.getFrameLength() + clip2.getFrameLength());

            AudioSystem.write(appendedFiles, 
                            AudioFileFormat.Type.WAVE, 
                            new File("D:\\wavAppended.wav"));
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}