Andreas has been involved in the creation of SACD from the beginning while working at Sony. He was leading a team of engineers designing the world’s first multichannel DSD recorder and editor for professional recording (Sonoma workstation), world’s first multichannel DSD converters (ADC and DAC) and participated in various standardization committees world‐wide for SACD. Later he went on as a consultant to design a number of proprietary DSD processing algorithms for converting PCM to DSD and DSD to PCM, and other technologies for D/A conversion and clock jitter control in DACs. In 2008 he co‐founded Playback Designs to bring to market his exceptional experience and know‐how in DSD in form of D/A converters and CD/SACD players. Earlier he was part of an engineering team at Studer in Switzerland designing one of the world’s first digital tape recorders, then lead a team of engineers working on a multichannel hard disk recorder, and a 3‐year stint at Dolby as the company’s first digital design engineer gave him a well rounded foundation of audio know‐how and experience.