LTAC allows for lossless audio compression of PCM coded audio signals (16 bit), i.e. decoding results bit for bit in the original bit stream of the PCM coded signal. In contrast to LTAC there exist a lot of lossy coding algorithms like MPEG, ATRAC and AC-3, which yield higher compression ratios but in any case lead to coding distortions - nothing for HiFi purists and professionals.

User comment: Please note that LTAC is not developed further; it has a successor called LPAC; the rating refers to LPAC which is really an excellent small program.

http://www.nue.tu-berlin.de/wer/liebchen/ltac.html