Fixed-point implementation of MPEG-D unified speech and audio coding decoder

Eunwoo Song, Hong Goo Kang, Joonil Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper describes a fixed-point implementation method of the unified speech and audio coding (USAC) decoder that has been recently standardized by moving picture experts group (MPEG). Since the structure of USAC is too complicated to support both speech and audio signals, the quality and complexity issues must be carefully reviewed while performing fixed-point implementation. By analyzing the structure of the USAC decoder, this paper describes key ideas to successfully realize the fixedpoint system. Subjective and objective test results verify that the implemented fixed-point decoder shows equivalent quality to the floating-point decoder. The average and worst cases of complexity depending on the type of encoding modes are also given in detail.

Original languageEnglish
Title of host publication2014 19th International Conference on Digital Signal Processing, DSP 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages110-113
Number of pages4
ISBN (Electronic)9781479946129
DOIs
Publication statusPublished - 2014
Event2014 19th International Conference on Digital Signal Processing, DSP 2014 - Hong Kong, Hong Kong
Duration: 2014 Aug 202014 Aug 23

Publication series

NameInternational Conference on Digital Signal Processing, DSP
Volume2014-January

Other

Other2014 19th International Conference on Digital Signal Processing, DSP 2014
CountryHong Kong
CityHong Kong
Period14/8/2014/8/23

All Science Journal Classification (ASJC) codes

  • Signal Processing

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