www.aptx.com

Audio Processing Technology Limited (APT)
APT was created, in 1989, to build upon innovative research into digital audio compression technology carried out at Queen’s University, Belfast. Since then, APT has established itself at the forefront of its field, successfully developing the high quality 4:1 compression algorithm, which is used to facilitate the transmission / transport of audio data. This product is marketed as apt-XTM. Headquartered in Belfast, Northern Ireland, APT also has offices in the UK and Japan.