A low complexity audio coding scheme for wideband audio

Author

Peddibhotla, Ram M. ; Maher, Robert C. ; Sayood, Khalid

Author_Institution

Dept. of Electr. Eng., Nebraska Univ., Lincoln, NE, USA

Volume

2

fYear

1994

fDate

31 Oct-2 Nov 1994

Firstpage

1222

Abstract

Differential encoding is a well known low complexity coding technique. Its use in the coding of wideband audio is limited by its inability to follow rapid changes in the signal. This is a serious drawback when coding high fidelity audio where this inability can seriously degrade the perceptual quality of the reconstruction. This overload problem can be remedied by using a recursively indexed quantizer. In this paper we present some empirical results for the differential coding of audio signals

Keywords

audio coding; differential pulse code modulation; quantisation (signal); recursive functions; signal reconstruction; audio signals; differential PCM; differential encoding; high fidelity audio; low complexity audio coding scheme; overload problem; perceptual quality; recursively indexed quantizer; signal reconstruction; wideband audio; Audio coding; Degradation; Encoding; Image coding; Image reconstruction; Modulation coding; Noise level; Pulse modulation; Quantization; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 1994. 1994 Conference Record of the Twenty-Eighth Asilomar Conference on

Conference_Location

Pacific Grove, CA

ISSN

1058-6393

Print_ISBN

0-8186-6405-3

Type

conf

DOI

10.1109/ACSSC.1994.471653

Filename

471653