Opens in a new tab

AES E-Library

← Back to search

Convention Paper

Trellis Noise-Shaping Converters and 1-bit Digital Audio

Authors: Kato, Hiroshi

AES Convention 112 · Paper 5615 · April 2002

Abstract

Just recently, a new type of delta-sigma converter, Trellis Noise Shaping Converter, has been introduced. When it is used to generate a bit stream in 1-bit digital audio format, its trellis structure with Viterbi algorithm enables more efficient use of data bits, which yields better performance in stability, signal to noise ratio and tonal behavior. It solves most of the performance problem caused by harsh non-linearity inherent in 1-bit quantization. This paper briefly examines its architecture and performance. An emphasis is put on its simple and more predictable quantization noise spectrum in comparison with that of conventional modulators.

Details

Published in
AES Convention 112
AES Convention
112
Paper number
5615
Publication date
April 6, 2002
Session subject
Signal Processing Forum
Affiliation
Accuphase Laboratory, inc., Yokohama, JAPAN (See document for exact affiliation information.)
Type
Convention Paper