Title :
A real-time implementation of the MPEG-2 audio encoder
Author :
Kim, Sung-Youn ; Oh, Hyen-O ; Lee, Ki-Seung ; Kim, Ki-Soo ; Youn, Dae-Hee ; Lee, Jun-Yong
Author_Institution :
Dept. of Electron. Eng., Yonsei Univ., Seoul, South Korea
fDate :
8/1/1997 12:00:00 AM
Abstract :
A real-time implementation of the MPEG-2 audio encoding system is presented. The system is made up of eleven highly-parallel DSP processors, which are distributed in five slave engines and one master unit. Each slave engine consists of two processors which perform the subband analysis and psychoacoustic modeling, respectively. The master board comprising a single processor performs the bit allocation, quantization and bit-stream formatting for up to five channels. To utilize the full capacity of the system, the job scheduling is optimized and distributed to each slave board after analyzing the flow of the MPEG-2 algorithm and the amount of computation at each stage
Keywords :
acoustic signal processing; audio coding; code standards; digital signal processing chips; hearing; parallel processing; quantisation (signal); telecommunication standards; transform coding; MPEG-2 algorithm; MPEG-2 audio encoder; MPEG-2 audio encoding system; bit allocation; bit stream formatting; job scheduling; master board; master unit; parallel DSP processors; psychoacoustic modeling; quantization; real-time implementation; slave engines; subband analysis; Bit rate; Digital signal processing; Engines; Master-slave; Performance analysis; Processor scheduling; Psychoacoustic models; Psychology; Quantization; Real time systems;
Journal_Title :
Consumer Electronics, IEEE Transactions on
