Design and implementation of a DSP based MPEG-1 audio encoder

Author

Hoekstra, Eric ; Shaaban, Muhammad ; Czernikowski, Roy ; Dianat, Soheil

Author_Institution

Comput. Eng., Rochester Inst. of Technol., NY, USA

Volume

45

Issue

1

fYear

1999

fDate

2/1/1999 12:00:00 AM

Firstpage

31

Lastpage

35

Abstract

The speed of current PCs enable them to decode and play an MPEG bitstream in real-time. The encode process, however, cannot be done in real-time. This paper presents a low-cost real-time fixed point DSP implementation of an MPEG-1 layer 1 audio encoder. The DSP transmits the encoded MPEG bitstream to a PC through a standard bi-directional parallel port, which the PC can immediately save to disk. The encoder is capable of transmitting bitstreams to the PC at bit-rates from 32 kbps-320 kbps

Keywords

audio coding; code standards; digital signal processing chips; microcomputer applications; telecommunication standards; 32 to 320 kbit/s; MPEG bitstream; MPEG-1 audio encoder; PC; audio encoder design; bit-rates; low-cost DSP implementation; personal computer; real-time fixed point DSP; standard bi-directional parallel port; Band pass filters; Bandwidth; Decoding; Digital signal processing; Digital signal processing chips; Finite impulse response filter; Frequency; IEC standards; ISO standards; Transform coding;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.754414

Filename

754414