How to script audio files using Java on Linux

How to use Java to write scripts to process audio files on Linux

Introduction: Linux is an open source operating system, and Java is a cross-platform programming language . Combining the two, we can write scripts using Java on Linux to process audio files. This article will introduce how to use Java to script audio files on Linux and provide specific code examples.

1. Install Java
First, install the Java Development Kit (JDK) on Linux. You can check whether Java has been installed by running the following command:

java -version

If the Java version information is returned, Java has been installed. If it is not installed, please install it accordingly according to the Linux distribution you are using.

2. Import Java libraries for audio processing
Java provides many libraries for audio processing. We can use these libraries to implement operations such as reading, writing, and cutting audio files. Here we take the javax.sound.sampled library as an example. You can import it into your Java project through the following command:

import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.Clip;

3. Read audio files
UseAudioInputStream object to read audio files. The following is a sample code that demonstrates how to read audio files:

AudioInputStream audioInputStream = AudioSystem.getAudioInputStream(new File("audio.wav"));

4. Play audio files
Use the Clip object to play audio files. The following is a sample code that demonstrates how to play an audio file:

Clip clip = AudioSystem.getClip();
clip.open(audioInputStream);
clip.start();

5. Intercept the audio file
Use the Clip object to intercept part of the audio file. The following is a sample code that demonstrates how to intercept audio files:

Clip clip = AudioSystem.getClip();
clip.open(audioInputStream);

long startFrame = clip.getMicrosecondPosition();
// 在此处设置截取的起始时间、结束时间

long endFrame = clip.getMicrosecondPosition();

clip.setMicrosecondPosition(startFrame);
clip.stop();

AudioFormat format = clip.getFormat();
AudioInputStream shortenedStream = new AudioInputStream(clip, format, endFrame - startFrame);

AudioSystem.write(shortenedStream, AudioFileFormat.Type.WAVE, new File("audio-cut.wav"));

6. Save the processed audio file
Use the AudioSystem.write method to save the processed audio file. The following is a sample code that demonstrates how to save the processed audio file to the local:

AudioInputStream processedStream = processAudio(audioInputStream); // 在此处调用你自定义的音频处理方法

AudioSystem.write(processedStream, AudioFileFormat.Type.WAVE, new File("audio-processed.wav"));

7. Complete sample code
The following is a sample code that demonstrates how to use Java to write scripts to process audio files on Linux. Complete sample code:

import javax.sound.sampled.*;
import java.io.File;
import java.io.IOException;

public class AudioScript {

    public static void main(String[] args) throws UnsupportedAudioFileException, IOException, LineUnavailableException {
        // 读取音频文件
        AudioInputStream audioInputStream = AudioSystem.getAudioInputStream(new File("audio.wav"));

        // 播放音频文件
        Clip clip = AudioSystem.getClip();
        clip.open(audioInputStream);
        clip.start();

        // 截取音频文件
        long startFrame = clip.getMicrosecondPosition();
        // 在此处设置截取的起始时间、结束时间
        long endFrame = clip.getMicrosecondPosition();
        clip.setMicrosecondPosition(startFrame);
        clip.stop();
        AudioFormat format = clip.getFormat();
        AudioInputStream shortenedStream = new AudioInputStream(clip, format, endFrame - startFrame);
        AudioSystem.write(shortenedStream, AudioFileFormat.Type.WAVE, new File("audio-cut.wav"));

        // 保存处理后的音频文件
        AudioInputStream processedStream = processAudio(audioInputStream); // 在此处调用你自定义的音频处理方法
        AudioSystem.write(processedStream, AudioFileFormat.Type.WAVE, new File("audio-processed.wav"));
    }

    private static AudioInputStream processAudio(AudioInputStream audioInputStream) {
        // 在此处实现你的音频处理逻辑
        return audioInputStream;
    }
}

Summary:
Through this article, you learned how to use Java to write scripts on Linux to process audio files. You can use the audio processing library provided by Java to read, play, intercept, save audio files, and perform audio processing operations according to your own needs. Before writing code, don't forget to install Java and import the corresponding libraries. Hope this article is helpful to you!

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