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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

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.
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References in periodicals archive ?
When speech compression ratio was 0.6, all HF SNHL groups scored significantly lower than the NH group except the 2 kHz mild and severe HF SNHL groups and 4 kHz mild HF SNHL group; when speech compression ratio was 0.8, the NH group scored significantly higher than the 1 kHz moderate and severe HF SNHL groups and 4 kHz moderate HF SNHL group, while the NH group scored significantly higher than the 1 kHz moderate and severe HF SNHL groups when speech compression ratio was 1.0.
Its products include high definition acoustic echo cancellation (HD AEC), HD stereo acoustic echo cancellation, Packet, line and Network Echo Cancellation, Voice Engine with SIP, high-density conference engines, speech compression, telephony, and voice-quality algorithms across many platforms.
Signal compression, Image compression, Speech compression, audio and video compression, wireless sensor networks etc.
Access to software libraries is also available for added functionality with speech compression for protocols such as G.711 (64 kbps), ADPCM G.726A (16-40 kbps) and SPEEX (8 kbps).
This is a demonstration of a speech compression algorithms LPC.
The assumption prior to the investigation was that there would be little difference in listener response to the different methods of speech compression. How ever, analysis of the listener's responses to the message delivered at a faster rate, compressed speech, revealed that a greater proportion of affective responses were elicited with time compression than with pause compression.
Ultimately, we were able to correct for all groups, with the exception of the younger participants in the 20% speech compression condition.
Speech compression algorithms can reduce the required bandwidth by a factor of eight or more.
Leveraging the company's proprietary advanced, proven digital speech processing technology and high-quality speech compression algorithms, ISD's VoiceDSP products enable an array of digital features and functionality for products such as digital telephone answering devices.
Voxware is selling what amounts to all of its current operating business off to Ascend, including its core code technology, vocoder or speech compression algorithms, and companion signal processing algorithms.
Leveraging the company's proprietary advanced, proven digital speech processing technology and high-quality speech compression algorithms, ISD's CompactSPEECH products enable an array of digital features and functionality for products such as digital telephone answering devices.