CS-ACELP speech coding board and application systems

Takao Kaneko, Akitoshi Kataoka, Sinji Hayashi, Takehiro Moriya

Research output: Contribution to journalArticlepeer-review


The CS-ACELP program on a fixed-point DSP (Digital Signal Processor) chip and the codec system with this chip were developed for the quality tests of the ITU (International Telecommunication Union) standardization. Using the DSP chip, a codec board for personal computers was also implemented to support the development of CS-ACELP application systems. The CS-ACELP algorithm, which is approved as a Speech Coding Draft Recommendation G.729 in ITU, is expected to be used in the world-wide applications of personal wireless communication systems or PHS (personal handy-phone system) , time division multiplexing systems, and digital simultaneous voice and data communications.

Original languageEnglish
Pages (from-to)343-348
Number of pages6
JournalNTT R and D
Issue number4
Publication statusPublished - 1996
Externally publishedYes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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