DocumentCode
387762
Title
32kbs ADPCM/PCM transcoder using TI-320 DSP microprocessor
Author
Hangartner, R.D. ; Jain, V.K.
Author_Institution
University of South Florida, Tampa, FL
Volume
10
fYear
1985
fDate
31138
Firstpage
1421
Lastpage
1424
Abstract
The CCITT has recently proposed a Draft Recommendation for a tandemable 64 kbps PCM to 32 kbps ADPCM transcoder algorithm [1],[2]. This paper presents a real-time hardware and software realization of the algorithm based on a single TI TMS 32010 each for the encoder and decoder. Objective and subjective results indicate that our changes in the adaptive quantizer and prediction filter, which make this single µP chip realization possible, do not degrade system performance relative to the CCITT algorithm.
Keywords
Circuits; Clocks; Decoding; Digital signal processing; Microprocessors; Personal communication networks; Phase change materials; Silicon compounds; Software design; Switches;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '85.
Type
conf
DOI
10.1109/ICASSP.1985.1168090
Filename
1168090
Link To Document