Convert Audio AMR to WAV using java libraries

Question

I need WAV format audio files to establish some functions but if i get AMR format audio files from client side to server, I need convert it into WAV format. Now i am using JAVE library file to convert other format audio media files into WAV format. Everything works fine but when i receive AMR Audio files, it throws Exception like "it.sauronsoftware.jave.EncoderException: Duration: N/A, bitrate: N/A", I have posted my code below...

/**
 * method to convert all media format to wav format
 * 
 * @param fileLoc
 * @return
 */
public static String universalContentToWav(String fileLoc) {
    String location = SoundWaveConstants.AUDIO_LOCATION + new Date().getTime() + ".wav";
    AudioAttributes audio = new AudioAttributes();
    audio.setCodec("pcm_s16le");
    EncodingAttributes attrs = new EncodingAttributes();
    attrs.setFormat("wav");
    attrs.setAudioAttributes(audio);
    Encoder encoder = new Encoder();
    try {
        encoder.encode(new File(fileLoc), new File(location), attrs);
        System.out.println("done");
    } catch (Exception e) {
        e.printStackTrace();
    }
    return location;
}

I am using the java library file from http://www.sauronsoftware.it/projects/jave/. Is there any way to change AMR file to WAV or need some changes in my code. Thanks in advance.

What does the public it.sauronsoftware.jave.MultimediaInfo getInfo tell you of the input file? — gfelisberto, May 05 '16 at 13:54
@gfelisberto thanks for your reply :). Multimediainfo getInfo return like "it.sauronsoftware.jave.MultimediaInfo (format=amr, duration=-1, video=null, audio=null)", so i think encoder cannot read the AMR file. — chellapandi k, May 05 '16 at 14:32

score 1 · Answer 1 · answered Dec 19 '18 at 06:17

The jave project is too old to handle some exception condition. I created a project to resolve EncoderException. The only thing you need to do is include the maven dependency:

<dependency>
    <groupId>com.github.dadiyang</groupId>
    <artifactId>jave</artifactId>
    <version>1.0.2</version>
</dependency>

and invoke AudioUtils.amrToWav method:

 File source = new File("testAudio.amr");
 File wavTarget = new File("testAudio.wav");
 it.sauronsoftware.jave.AudioUtils.amrToWav(source, wavTarget);

This project include the ffmpeg executable file for Linux/Mac/Windows, if the provided exe is incompatible with your platform, you can set ffmpeg.home as system property to tell where your own ffmpeg executable exists, like:

System.setProperty("ffmpeg.home", "/usr/local/bin/")

By the way, for compatibility, my project's package name is same as jave, in order to avoid package conflict, please remove the sauronsoftware jave's jar.

Project Site: https://github.com/dadiyang/jave

English Document: https://github.com/dadiyang/jave/blob/master/README-en.md

Convert Audio AMR to WAV using java libraries

1 Answers1