In This Section
Clean Audio for TV broadcast: An Object-Based Approach for Hearing-Impaired Viewers - April 2015
Audibility of a CD-Standard A/DA/A Loop Inserted into High-Resolution Audio Playback - September 2007
Sound Board: Food for Thought, Aesthetics in Orchestra Recording - April 2015
AES Convention Papers Forum
Ultra-Low Distortion Digital Power Amplification
Previous work has shown that oversampled noise shaping with pulse-width modulation gives a practical DAC with the potential for driving a class-D output stage to give a truly all-digital power amplifier. In this paper, we examine the effects of a new additional processing step which converts the uniformly sampled PWM into naturally sampled PWM to give essentially distortion-free performance for all signal levels and frequencies. Results from a simulation and from a hardware demonstrator are compared with those of the earlier scheme.
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