In 1990, Mr. Smith joined APT to carry out research into acoustic echo cancellation algorithms and low bit rate coders. He was primarily responsible for the development of a real time DSP based system to demonstrate a 64kps coder, and in 1991 he became Research and Development Manager in APT, eventually heading up a team of seven engineers.
Mr. Smith co-founded AlgoRhthmic Technology Ltd. which became a joint venture partner with DTS Technology in 1995. Since then, he has been jointly responsible for the development of the DTS Digital Surround Sound.