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 ?
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.
The additional applications and the voice compression allow service providers to improve the economics of IMS over WiMAX.
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.
The Memotec's CX Gateway extends also savings to the core thanks to its market leading voice compression feature (DCME function).
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.
Additionally, voice compression capabilities enable both the service provider and end user to control voice quality.
The company also offers Carrier Ethernet Transport and DCME voice compression solutions.
The underlying voice-processing and DSP technology that drives the I-Gate 4000 PRO is based on Veraz's extensive in-house experience in statistical voice multiplexing, signal analysis, voice compression, jitter buffer management, packet loss concealment and packet aggregation.
The Access211 provides superior voice quality and performance because of features such as traffic shaping, advanced quality of service standards and an enhanced voice compression capability.
The I-Gate 4000 Pro, a recognized leader in voice quality and compression, in combination with Access200 family of VoIP ATAs from Telco Systems offers superior voice quality for any type of connection (IP to PSTN IP to IP, and PSTN to PSTN) while offering bandwidth savings through voice compression.
This latest Call Center Network Compression solution is based on Veraz's I-Gate 4000 family of media gateways that deliver the highest voice compression ratio on the market, up to 12 to 1 for voice, enabling major savings in bandwidth costs while maintaining high toll-quality voice expected by multi-national corporations.

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