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Engineering Brief Open Access

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

Authors: La Grou, Jon

AES Convention 150 · Paper 645 · May 2021

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 Convention 150
AES Convention
150
Paper number
645
Publication date
May 6, 2021
Session subject
Audio Quality/Standards
Type
Engineering Brief

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