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TI echo cancellation tool boosts phone performance

Posted: 29 Jun 2007 ?? ?Print Version ?Bookmark and Share

Keywords:acoustic echo cancellation software? AEC software? IP phones?

Texas Instruments Inc. announces that Grandstream has selected TI's advanced acoustic echo cancellation (AEC) software to dramatically improve the speakerphone quality for its GXP2020, GXP2000 and BT200 IP phones, all of which are based on TI's TMS320C5000 DSP platform. A speakerphone enhancement firmware release based on the TI's new advanced AEC software is scheduled to be available by month-end.

Grandstream selected TI because its AEC software is fully compliant with the ITU G.167 standard and features a superior acoustic echo cancellation algorithm with 160ms tail length, sophisticated non-linear processing (NLP) and double talk detection and advanced automatic gain control (AGC) which help boost the performance and quality of a full duplex hands-free speakerphone. TI's AEC works with all of the voice codecs that are supported on Grandstream IP phones. It also supports up to five-way conferencing for GXP2020 and three-way conferencing for GXP2000 and BT200 in speakerphone mode. The new firmware release incorporating this new AEC algorithm will be available for download on Grandstream's website.

"We are very excited to announce this speakerphone enhancement firmware release for our business and residential IP phone product lines, said David Li, CEO of Grandstream Networks. "Grandstream and TI engineers collaborated closely to fine-tune the AEC algorithm on most of Grandstream's IP phone models and they successfully improved the speakerphone performance and voice clarity significantly. This development underscores the close partnership between Grandstream and TI as well as our strong commitment to continuously enhancing and improving our products for our customers."

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