Java处理音频文件wav转mp3/mp3转wav

快来打我* 2022-10-12 04:14 356阅读 0赞

### 文章目录 ###

*  动机
 *  Java处理

# 动机 #

最近，在使用opensmile提取音频的一些特征，需要使用到wav文件，而自身文件是mp3格式的，因此需要对大量的音频文件做处理。

# Java处理 #

首先，使用maven下载相关的依赖jar包：

<dependency>
    			<groupId>ws.schild</groupId>
    			<artifactId>jave-core</artifactId>
    			<version>2.4.6</version>
    		</dependency>
    		<dependency>
    			<groupId>ws.schild</groupId>
    			<artifactId>jave-native-win64</artifactId>
    			<version>2.4.6</version>
    		</dependency>

对应的java程序如下：

package com.qian.processing;
    
    import java.io.File;
    import java.io.IOException;
    import ws.schild.jave.AudioAttributes;
    import ws.schild.jave.Encoder;
    import ws.schild.jave.EncoderException;
    import ws.schild.jave.EncodingAttributes;
    import ws.schild.jave.InputFormatException;
    import ws.schild.jave.MultimediaObject;
    
    public class Test { 
    
    	public static void main(String[] args) throws IOException, IllegalArgumentException, InputFormatException, EncoderException { 
    		File source = new File("data/test.mp3");
    		File target = new File("data/b.wav");
    		trans(source,target);
    	}
    	  public static void trans(File source, File target) throws IllegalArgumentException, InputFormatException, EncoderException  { 
    		  AudioAttributes audio = new AudioAttributes();
    
    			audio.setCodec("libmp3lame"); 
    			audio.setBitRate(new Integer(16000));
    			audio.setChannels(new Integer(2));
    			audio.setSamplingRate(new Integer(0));
    
    			EncodingAttributes attrs = new EncodingAttributes();
    			attrs.setFormat("wav");
    			attrs.setAudioAttributes(audio);
    			Encoder encoder = new Encoder();
    			MultimediaObject sourceObj = new MultimediaObject(source);
    			encoder.encode(sourceObj, target, attrs);
    	  }
    }