Transparent bitrate estimation for perceptual audio coding

Author

Li, Te ; Rahardja, Susanto

Author_Institution

Signal Process. Dept., A*STAR, Singapore, Singapore

fYear

2009

fDate

25-27 May 2009

Firstpage

2123

Lastpage

2127

Abstract

In this paper, the relationship between the features of the input audio and its corresponding transparent bitrate is studied. This relationship can be used to pre-estimate the transparent bitrate required for an input audio file, so that this bitrate can be used for encoding and the transparent quality can be achieved with the minimum compressed file size. Two features are selected and tested. Firstly, the perceptual feature is extracted from the test sequences using MPEG-4 advanced audio coding. The results of the signal-to-mask ratio and the transparent bitrate are compared. Secondly, the relationship between the music genre of the audio and its transparent bitrate is explored.

Keywords

audio coding; data compression; feature extraction; image sequences; video coding; MPEG-4 advanced audio coding; feature extraction; music genre; perceptual audio coding; signal-to-mask ratio; test sequences; transparent bitrate; transparent bitrate estimation; Audio coding; Audio compression; Bit rate; Encoding; Multiple signal classification; Psychology; Quantization; Signal analysis; Tellurium; Testing; Perceptual audio coding; music genre; transparent quality;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications, 2009. ICIEA 2009. 4th IEEE Conference on

Conference_Location

Xi´an

Print_ISBN

978-1-4244-2799-4

Electronic_ISBN

978-1-4244-2800-7

Type

conf

DOI

10.1109/ICIEA.2009.5138524

Filename

5138524