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My Questions and Answers (MQA) An interview of and by Andreas Koch on the subject of digital audio formats In the age of digital audio it appears that a new format is trying to conquer the consumer market every few years, but their success-to-failure ratio is much smaller than 1. It makes us wonder why... Read More »

Andreas Koch of Playback Designs, RMAF 2014 Direct Stream Digital, or DSD, encoding has been used for years already for SACD and also as an intermediate format inside analog-to-digital and digital-to-analog converters. It's basic concept is Delta-Sigma modulation and uses 1 bit per sample with a sample rate of at least 2.8224MHz (64 x 44.1kHz).... Read More »