A MATLAB Simulink implementation of speech masking based on the MPEG psychoacoustic model 1

Author

Arelhi, Roselina ; Campbell, Douglas R.

Author_Institution

Div. of Eng., Nottingham Univ., Kuala Lumpur, Malaysia

Volume

1

fYear

2003

fDate

18-20 Sept. 2003

Firstpage

543

Abstract

The MPEG standard for digital compression for high-fidelity audio provides two implementations of the psychoacoustic model, psychoacoustic model 1 and psychoacoustic model 2. The ISO/1EC 13818-3:1994(E) document contains descriptions of these models. This model is of interest for the development of speech enhancement algorithms that concentrate their effect on the perceptible components in a speech signal. MATLAB/Simulink software has been used to construct a system for implementing speech masking. It consists of two main parts; the estimation of masking threshold, and the application of masking including reconstructing the speech. The system has been successfully tested with pure tone and speech signals, and undergone some quality assessment testing using human subjects. The system will be used as a tool for investigating cross-channel interactions for binaural speech enhancement.

Keywords

audio coding; data compression; speech coding; speech enhancement; speech intelligibility; MATLAB Simulink implementation; MPEG psychoacoustic model; cross-channel interactions; digital compression; high-fidelity audio; masking estimation; quality assessment testing; speech enhancement algorithms; speech masking; speech reconstruction; ISO standards; MATLAB; MPEG standards; Masking threshold; Mathematical model; Psychoacoustic models; Speech coding; Speech enhancement; System testing; Transform coding;

fLanguage

English

Publisher

ieee

Conference_Titel

Image and Signal Processing and Analysis, 2003. ISPA 2003. Proceedings of the 3rd International Symposium on

Print_ISBN

953-184-061-X

Type

conf

DOI

10.1109/ISPA.2003.1296956

Filename

1296956