conversion mp3 en wav en java

public static byte [] getAudioDataBytes(byte [] sourceBytes, AudioFormat audioFormat) throws UnsupportedAudioFileException, IllegalArgumentException, Exception{
        if(sourceBytes == null || sourceBytes.length == 0 || audioFormat == null){
            throw new IllegalArgumentException("Illegal Argument passed to this method");
        }

        ByteArrayInputStream bais = null;
        ByteArrayOutputStream baos = null;
        AudioInputStream sourceAIS = null;
        AudioInputStream convert1AIS = null;
        AudioInputStream convert2AIS = null;

        try{
            bais = new ByteArrayInputStream(sourceBytes);
            sourceAIS = AudioSystem.getAudioInputStream(bais);
            AudioFormat sourceFormat = sourceAIS.getFormat();
            AudioFormat convertFormat = new AudioFormat(AudioFormat.Encoding.PCM_SIGNED, sourceFormat.getSampleRate(), 16, sourceFormat.getChannels(), sourceFormat.getChannels()*2, sourceFormat.getSampleRate(), false);
            convert1AIS = AudioSystem.getAudioInputStream(convertFormat, sourceAIS);
            convert2AIS = AudioSystem.getAudioInputStream(audioFormat, convert1AIS);

            baos = new ByteArrayOutputStream();

            byte [] buffer = new byte[8192];
            while(true){
                int readCount = convert2AIS.read(buffer, 0, buffer.length);
                if(readCount == -1){
                    break;
                }
                baos.write(buffer, 0, readCount);
            }
            return baos.toByteArray();
        } catch(UnsupportedAudioFileException uafe){
            //uafe.printStackTrace();
            throw uafe;
        } catch(IOException ioe){
            //ioe.printStackTrace();
            throw ioe;
        } catch(IllegalArgumentException iae){
            //iae.printStackTrace();
            throw iae;
        } catch (Exception e) {
            //e.printStackTrace();
            throw e;
        }finally{
            if(baos != null){
                try{
                    baos.close();
                }catch(Exception e){
                }
            }
            if(convert2AIS != null){
                try{
                    convert2AIS.close();
                }catch(Exception e){
                }
            }
            if(convert1AIS != null){
                try{
                    convert1AIS.close();
                }catch(Exception e){
                }
            }
            if(sourceAIS != null){
                try{
                    sourceAIS.close();
                }catch(Exception e){
                }
            }
            if(bais != null){
                try{
                    bais.close();
                }catch(Exception e){
                }
            }
        }
    }

Ici sourceBytes représente le fichier MP3 ou le fichier WAV. audioFormat est le format PCM dans lequel vous voulez la conversion. Aussi, nous devons mettre mp3spi.jar, tritonus_mp3.jar, jl*.jar, tritonus_share.pot de javazoom.com dans classpath. Espérant que cela puisse aider d'autres.

Version de Java 7:

public static byte [] getAudioDataBytes(byte [] sourceBytes, AudioFormat audioFormat) throws UnsupportedAudioFileException, IllegalArgumentException, Exception {
    if(sourceBytes == null || sourceBytes.length == 0 || audioFormat == null){
        throw new IllegalArgumentException("Illegal Argument passed to this method");
    }

    try (final ByteArrayInputStream bais = new ByteArrayInputStream(sourceBytes);
         final AudioInputStream sourceAIS = AudioSystem.getAudioInputStream(bais)) {
        AudioFormat sourceFormat = sourceAIS.getFormat();
        AudioFormat convertFormat = new AudioFormat(AudioFormat.Encoding.PCM_SIGNED, sourceFormat.getSampleRate(), 16, sourceFormat.getChannels(), sourceFormat.getChannels()*2, sourceFormat.getSampleRate(), false);
        try (final AudioInputStream convert1AIS = AudioSystem.getAudioInputStream(convertFormat, sourceAIS);
             final AudioInputStream convert2AIS = AudioSystem.getAudioInputStream(audioFormat, convert1AIS);
             final ByteArrayOutputStream baos = new ByteArrayOutputStream()) {
            byte [] buffer = new byte[8192];
            while(true){
                int readCount = convert2AIS.read(buffer, 0, buffer.length);
                if(readCount == -1){
                    break;
                }
                baos.write(buffer, 0, readCount);
            }
            return baos.toByteArray();
        }
    }
}

Maven:

<dependency>
    <groupId>com.googlecode.soundlibs</groupId>
    <artifactId>mp3spi</artifactId>
    <version>1.9.5-1</version>
</dependency>
<dependency>
    <groupId>com.googlecode.soundlibs</groupId>
    <artifactId>jlayer</artifactId>
    <version>1.0.1-1</version>
    <exclusions>
        <exclusion>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
        </exclusion>
    </exclusions>
</dependency>