speech compression

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speech compression

[′spēch kəm‚presh·ən]
(communications)
Modulation technique that takes advantage of certain properties of the speech signal to permit adequate information quality, characteristics, and the sequential pattern of a speaker's voice to be transmitted over a narrower frequency band than would otherwise be necessary.

speech compression

Encoding digital speech to take up less storage space and transmission bandwidth. The PCM, ADPCM, CELP and LD-CELP methods are commonly used for speech compression. See speech codec and data compression.
References in periodicals archive ?
s PrimeVoice(TM) Plus voice compression modules enabling toll-quality 8 kbps voice compression and advanced facsimile voiceband data support.
has introduced the ClearSpeech Voice Compression algorithm, a superior technology which compresses voice for Internet and telecommunications.
As a result, the Nx2222 is ideally suited for central office needs, providing up to 2:1 compression on Abis/Ater cellular trunks and voice compression of 16:1 on PSTN trunks.
YEHUD, Israel, April 14 /PRNewswire/ -- AudioCodes, a leading provider of IP Telephony and voice over ATM networks enabling technology, announced today that Lucent SDX has released a Voice Compression Cassette (VCC) for its line of INDeX telecommunications gateways that is based on AudioCodes Voice Compression technology.
The additional applications and the voice compression allow service providers to improve the economics of IMS over WiMAX.
tel switching and voice compression software to help continually improve IP-based voice quality and reliability.
Veraz's voice compression technology uses VoIP to increase the capacity of existing TDM transmission links by compressing up to 10 E1s onto a single E1, while preserving high voice quality.
LAS VEGAS, May 5 /PRNewswire/ -- Today at Networld + Interop, AudioCodes, announced the availability of new Voice Compression Chips, "Voice over Packet" Communications Software and OEM board-level products for networking systems.
The Memotec's CX Gateway extends also savings to the core thanks to its market leading voice compression feature (DCME function).
Richard Gail, Director of Global Accounts for Netrix, said, "Netrix has always been a leader in voice compression in the international market.
Having integrated SPIRIT voice and telephony software, Memotec obtained a complete set of advantages like state of the art Fax/Modem signal processing, a complete set of voice compression codecs delivering superior toll-grade voice quality including built-in echo-canceller, and low-cost SPIRIT integration services", stated Claude Rocray, VP Engineering at Memotec.

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