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Convention Paper

Design of a Real-Time Sampling Rate Conversion System

Authors: Yamasaki, Yoshio; Sugawara, Hirokazu; Suneya, Takahito; Itow, Takeshi

AES Convention 61 · Paper 1427 · November 1978

Abstract

In a digital audio system, a significant problem exists when signals which have been sampled at different rates are being processed simultaneously. The paper discusses a digital system for converting signals from a 44.1 kHz sampling rate to 50.4 kHz rate. The technique makes use of a 1024-point finite impulse response (FIR) filter to allow interpolation by the Remez algorithm. Hardware has been constructed to provide 16-bit accuracy and involving approximately 128 multiplications per sample, to allow real-time conversion for a 20 kHz bandwidth audio signal.

Details

Published in
AES Convention 61
AES Convention
61
Paper number
1427
Publication date
November 6, 1978
Affiliation
Waseda University, Tokyo, Japan (See document for exact affiliation information.)
Type
Convention Paper