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Conference Paper

Dynamic Range Improvement in Digital to Analog Conversion via Multi-Path Topology

Authors: La Grou, Jon

AES Conference: 2020 AES International Conference on Audio for Virtual and Augmented Reality (August 2020) · Paper 645 · August 2020

Abstract

Conventional digital-to-analog conversion (DAC) is accomplished via a single processing path that must optimize broadband noise level against maximum output level, i.e., dynamic range. By splitting DAC processing into two or more discrete elements or “paths,” and passively recombining the analog resultants, order of magnitude improvement in dynamic range and linearity can be realized. Following a brief historical review, this paper will explore design details and experimental results on the author’s multi-path DAC prototypes, followed by experiments that assess multi-path design margins which exceed required psychoacoustic delivery parameters.

Details

Published in
AES Conference: 2020 AES International Conference on Audio for Virtual and Augmented Reality (August 2020)
Paper number
645
Publication date
August 6, 2020
Session subject
Audio Quality/Standards
Affiliation
Millennia Media, SPC, Diamond Springs, CA, USA (See document for exact affiliation information.)
Type
Conference Paper