G.722.1 Vocoder For Wide-band Audio Compression

Toronto, Canada - GAO Research Inc

Toronto, Canada - GAO Research Inc. (www.GAOResearch.com) is offering its G.722.1 vocoder for wide-band audio compression. GAO Research's G.722.1 vocoder is compliant with the ITU-T standard and operates at bit rates of 24 kbps and 32 kbps. Like all wide-band speech coders, the speech signal is sampled at 16 kHz.

G.722.1 can handle speech and audio signal bandwidth up to 7 kHz, compared to 3.6 kHz in narrow band speech coders. G.722.1 vocoder is based on transform technology using a Modulated Lapped Transform (MLT). The vocoder operates on 20 msec frames (320 samples) of audio and has a look-ahead of 20 msec. The total algorithmic delay is 40 msec.

This G.722.1 speech vocoder belongs to GAO's family of Speech Vocoders. This line includes a wide variety of vocoders such as G.726 Vocoder and G.729, G.729A and G.729AB Speech Vocoder which is ideal for visual telephony, wireless communications, and digital satellite communication systems and other similar products. GAO Research Inc. is a world-renowned provider of high quality, reliable telecommunications software including embedded modem software, fax modem software, speech codes, and telephony software for a wide range of DSPs and microprocessors.

About GAO Research Inc.

GAO Research Inc. (www.GAOResearch.com) is a world-renowned provider of high quality, reliable telecommunications software including embedded modem software, fax modem software, speech codes, and telephony software for a wide range of DSPs and microprocessors.

Toronto, Canada - GAO Research Inc. (www.GAOResearch.com) is offering its G.722.1 vocoder for wide-band audio compression. GAO Research's G.722.1 vocoder is compliant with the ITU-T standard and operates at bit rates of 24 kbps and 32 kbps. Like all wide-band speech coders, the speech signal is sampled at 16 kHz.

G.722.1 can handle speech and audio signal bandwidth up to 7 kHz, compared to 3.6 kHz in narrow band speech coders. G.722.1 vocoder is based on transform technology using a Modulated Lapped Transform (MLT). The vocoder operates on 20 msec frames (320 samples) of audio and has a look-ahead of 20 msec. The total algorithmic delay is 40 msec.

This G.722.1 speech vocoder belongs to GAO's family of Speech Vocoders. This line includes a wide variety of vocoders such as G.726 Vocoder and G.729, G.729A and G.729AB Speech Vocoder which is ideal for visual telephony, wireless communications, and digital satellite communication systems and other similar products. GAO Research Inc. is a world-renowned provider of high quality, reliable telecommunications software including embedded modem software, fax modem software, speech codes, and telephony software for a wide range of DSPs and microprocessors.

About GAO Research Inc.

GAO Research Inc. (www.GAOResearch.com) is a world-renowned provider of high quality, reliable telecommunications software including embedded modem software, fax modem software, speech codes, and telephony software for a wide range of DSPs and microprocessors.

by: Perry Keller

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