def alignOneChunk(pathToHtkModel, path_TO_OUTPUT, lyrics,
                      currPathToAudioFile, isLyricsFromFile, withSynthesis):

        if not (os.path.isdir(path_TO_OUTPUT)):
            os.mkdir(path_TO_OUTPUT)

        chunkAligner = Aligner(pathToHtkModel, currPathToAudioFile, lyrics,
                               isLyricsFromFile, withSynthesis)

        baseNameAudioFile = os.path.splitext(
            os.path.basename(chunkAligner.pathToAudioFile))[0]

        outputHTKPhoneAlignedURI = os.path.join(
            path_TO_OUTPUT, baseNameAudioFile) + HTK_MLF_ALIGNED_SUFFIX

        chunkAligner.alignAudio(0, path_TO_OUTPUT, outputHTKPhoneAlignedURI)

        return outputHTKPhoneAlignedURI