java 将.amr音频文件转换为.mp3或.wav文件

//利用ffmpeg.exe工具与cmd中的命令进行转换
//sourcePath为需要转换的.amr文件路径;targetPath为转换好的.mp3文件路径；
//toolPath为ffmpeg.exe文件路径
public void amrChangeToWavByFfmpegTool(String sourcePath,String targetPath,String toolPath){
File tool = new File(toolPath);
if (tool.exists()) {
String c = "\"" + toolPath + "\"" + " -y -i " + "\"" + sourcePath + "\"" + " -ar 8000 -ab 12.2k -ac 1 " + "\"" + targetPath + "\"";
try {
Process p = Runtime.getRuntime().exec(c);
p.destroy();
} catch (IOException e) {
e.printStackTrace();
}finally{
System.out.println("用ffmpeg工具进行了转换！");
}
}else {
System.out.println("ffmpeg工具不存在！");
}
}