public void convertWavToMP3(String filepathToConvert, String convertedFilePath) { Encoder wavToMp3Converter = new Encoder(); EncodingAttributes att = new EncodingAttributes(); AudioAttributes audioAtt = new AudioAttributes(); String codecs[] = null; String formats[] = null; try { formats = wavToMp3Converter.getSupportedDecodingFormats(); } catch (EncoderException e) { e.printStackTrace(); } try { codecs = wavToMp3Converter.getAudioEncoders(); } catch (EncoderException e) { e.printStackTrace(); } int mp3CodecIndex = -1; /*for(int i=codecs.length; i>0; i--) { if(codecs[i].compareTo("") == 0) { mp3CodecIndex = i; break; } }*/ audioAtt.setVolume(255); audioAtt.setSamplingRate(new Integer(this.getWavTagReader().sampleRate)); audioAtt.setChannels(new Integer(wavTagReader.numOfChannels)); audioAtt.setBitRate( new Integer( this.wavTagReader.sampleRate * this.wavTagReader.bitsPerSample * this.wavTagReader.numOfChannels)); audioAtt.setCodec("libmp3lame"); att.setAudioAttributes(audioAtt); att.setFormat("mp3"); att.setOffset(new Float((float) 0)); att.setVideoAttributes(null); // att.setDuration(new Float((float)100)); try { wavToMp3Converter.encode( new File(filepathToConvert), new File(convertedFilePath), att, new EncoderProgressListener() { @Override public void sourceInfo(MultimediaInfo multimediaInfo) {} @Override public void progress(int i) {} @Override public void message(String s) {} }); } catch (EncoderException e) { e.getMessage(); e.getCause(); } }