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.

Author: La Grou, Jon
Affiliation: Millennia Media, SPC, Diamond Springs, CA, USA
AES Conference: 2020 AES International Conference on Audio for Virtual and Augmented Reality (August 2020)
Paper Number: 645
Publication Date: August 13, 2020 Import into BibTeX
Subject: Audio Quality/Standards
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=21190

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