sound normalizer increases, reduces, levels, restores, volume and size mp3, mp4, ogg, flac, ape, aac and wav (pcm 8, 16, 24, 32 bits, dsp, gsm, ima adpcm, ms adpcm, ac3, mp3 , mp2, ogg, alaw, ulaw) files without loss of id3, mp4, ogg and flac tags.change the volume of files is achieved by checking and normalizing their volume level. reducing the size is achieved due to builtin encoders and file normalizer.the program has a builtin batch handler for batch checking, normalization and conversion of mp3, mp4, ogg, flac, ape, aac and wav (pcm 8, 16, 24, 32 bits, dsp, gsm, ima adpcm, ms adpcm, ac3, mp3, mp2, ogg, alaw, ulaw) files.