CS-ACELP speech coding board and application systems

Takao Kaneko, Akitoshi Kataoka, Shinji 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 ITL) (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)42-47
Number of pages6
JournalNTT Review
Issue number4
Publication statusPublished - 1996 Jul
Externally publishedYes

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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