Java音频格式转换，支持amr、aud、slk、silk转成mp3

说明：仅支持Windows系统下，amr、aud、slk、silk转成mp3。转换之前先下载转换工具，点我下载，提取码：2olq

import java.io.File;
import java.util.ArrayList;
import java.util.List;
/**
 * 支持在windows系统下，amr、aud、slk、silk转成mp3格式
 */
public class AudioConversion {
	public static void main(String[] args) {
		String audioType = "amr";//源音频文件类型，amr、aud、slk、silk
		String source = "E:\\audio\\audio." + audioType;//源音频文件
		String target = "E:\\audio\\audio.mp3";//目标音频文件
		String path = "E:\\audio\\";//音频转换工具存放路径
		
		File sourceFile = new File(source);
		if(sourceFile.exists()) {
			String pcmPath = path + "audio.pcm";
			processPcm(path, source, pcmPath);//先转成pcm格式
			File file=new File(pcmPath);
			if(file.exists()) {
				processMp3(path, pcmPath, target);//再由pcm转成mp3
			} else {
				processFfmpegMp3(path, source, target);//直接转成mp3
			}
		} else {
			System.out.println("源文件不存在");
		}
		
	}
	
	// 调用sile_v3_decoder.exe，转成pcm格式
	private static void processPcm(String path, String source, String pcmPath){
    	List<String> commend = new ArrayList<String>();  
        commend.add(path+"silk_v3_decoder.exe");   
        commend.add(source);  
        commend.add(pcmPath);         
        try {  
            ProcessBuilder builder = new ProcessBuilder();  
            builder.command(commend);  
            Process p=builder.start();
            p=Runtime.getRuntime().exec("taskkill -f -t -im silk_v3_decoder.exe");
            p.waitFor();     
        } catch (Exception e) {
        	e.printStackTrace();
        }
    }
	
	// 调用ffmpeg，pcm转mp3 
    private static void processMp3(String path, String pcmPath, String target) {
    	//ffmpeg -y -f s16le -ar 24000 -ac 1 -i 源文件 目标文件
    	List<String> commend = new ArrayList<String>();  
    	commend.add(path+"ffmpeg.exe");   
        commend.add("-y");  
        commend.add("-f");  
        commend.add("s16le");  
        commend.add("-ar");  
        commend.add("24000");  
        commend.add("-ac");  
        commend.add("1");  
        commend.add("-i");  
        commend.add(pcmPath);  
        commend.add(target);   
        try {  
            ProcessBuilder builder = new ProcessBuilder();  
            builder.command(commend);
            Process p=builder.start();
            p.waitFor();
        } catch (Exception e) {
        	e.printStackTrace();
        }
    }
    
    // 调用ffmpeg.exe，转MP3 
 	private static void processFfmpegMp3(String path, String source, String target){
     	List<String> commend = new ArrayList<String>();  
         commend.add(path+"ffmpeg.exe");  
         commend.add("-i");  
         commend.add(source);  
         commend.add(target);         
         try {  
             ProcessBuilder builder = new ProcessBuilder();  
             builder.command(commend);  
             Process p=builder.start();
             p=Runtime.getRuntime().exec("taskkill -f -t -im ffmpeg.exe");
             p.waitFor();     
         } catch (Exception e) {  
        	 e.printStackTrace();
         }
     }
}