FPGA Central

Toronto, Canada ¡V September 29th, 2005 ¡V GAO Research Inc.
(www.gaoresearch.com) a leading provider of embedded communicatio
software, released an online demo of its G.729AB codec, available a
http://www.gaoresearch.com/products/...other/g729.php. Thi
real-time demo allows customers to sample the high fidelity of GAO¡¦
G.729AB algorithm. Users may supply their own WAV file, and can adjus
simulation parameters such as network jitter and packet loss. GAO¡¦
G.729AB vocoder is off-the-shelf available and fully optimized for Texa
Instruments¡¦ C5000 and C6000 series DSPs, and Analog Devices¡¦ Blackfi
processor family. The codec is also available on other popular platform
such as ARM9, Intel¡¦s Xscale and Pentium processors, and Freescale¡¦
PowerPC amongst a few.

¡§Today¡¦s VoIP devices all support the ITU-T G.729AB codec, making it th
most sought after speech processing algorithm by our customers.¡¨ said Dr
Frank Gao, president of GAO Research Inc. ¡§Customers always demand t
sample the quality of a voice codec before they make the purchase. We wan
to present a convenient method for our customers to accurately evaluate th
fidelity of our codec under simulated network conditions. Customers ca
expect very similar results when our algorithm is implemented on thei
system.¡¨

GAO¡¦s G.729AB codec is based on the Code Excited Linear Prediction Mode
(CELP) and Conjugate-Structure Algebraic CELP (CS-ACELP). Som
applications for GAO's G.729AB vocoder include visual telephony, wireles
communications, and digital satellite communication systems. The G.729
ITU-T standard for voice coding compresses 8 kHz linear audio signals an
encodes them for transmission at 8 Kbps with reduced complexity compare
to G.729. The ITU-T G.729B & G.729AB standard is a silence compressio
scheme for G.729 & G.729A, optimized for terminals conforming t
Recommendation V.70.


GAO¡¦s G.729AB Voice Codec Features:

„h Compliant to ITU-T G.729 Annex A and Annex B standards
„h Fully optimized for Texas Instruments TMS320C5000 and TMS320C600
family of DSPs
„h Fully optimized for Analog Devices Blackfin Processor family
„h Other supported platforms: ADSP21xx, ARM9, CEVA Teak and TeakLite
Intel Xscale and Pentium processors, MIPS32 and MIPS64 cores, Freescal
PowerPC, Renesas SuperH, and STMicroelectronics ST20 and ST40 cores

About GAO Research Inc.

GAO Research Inc. is the leading provider of embedded communication
software for telecommunications, semiconductor, and electronics companie
worldwide. GAO offers its VoIP & FoIP solutions, V.92 & V.90 with al
fallback soft-modems, Super G3 & G3 fax software, speech and video codec
on the broadest range of DSPs and microprocessors. Gao's solutions underg
rigorous testing and certification to surpass industry benchmarks. GA
Research is the preferred vendor for Motorola, Lucent, Alcatel, Qualcomm
Philips, Terayon, Telcordia, OKI, Marconi, Siemens, Infineon, Mitsubishi
Intercom, LG Electronics, Toshiba and other global customers. For a
partial list of GAO Research clients, visit
http://www.gaoresearch.com/aboutus/clients/clients.php

The appeal of GAO Software implementations for communication technologie
has increased dramatically as the industry has realized the advantage
that GAO's software offers compared to fixed-function chip sets. I
addition to unparalleled flexibility, minimal footprint, lowered powe
consumption & wide-ranging platform support, GAO's products offer eas
upgrades and the inclusion of extended functionality with excellent pric
to performance ratios.

Media Contacts:
Kaashif Asghar/David Ou
Email: [email protected]
Tel: 416-292-0038 Ext:221/818


All trademarks and brand names mentioned are the property of thei
respective owners as applicable under individual trademark guidelines a
submitted to the U.S. Trademark and Patent Office




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A stupid question:

How does GAO Research handle all those multiple patents involved
in developing any decent speech coding algorithm ?

Do they actually pay for patent licenses themselves or they just leave
their customers with false impression that they can legally use those
patented by someone else solutions in their products without securing
proper licences from actual patent holders ?

well, why don't you give me US$30,000 first then I will answer you this
"stupid" question. hehe..

dsptalk wrote:
> well, why don't you give me US$30,000 first then I will answer you this
> "stupid" question. hehe..

I might, but a little bit later ...

fizteh89 wrote:
> A stupid question:
>
> How does GAO Research handle all those multiple patents involved
> in developing any decent speech coding algorithm ?
>
> Do they actually pay for patent licenses themselves or they just leave
> their customers with false impression that they can legally use those
> patented by someone else solutions in their products without securing
> proper licences from actual patent holders ?

For a lot of things, like codecs, finding someone who can deal with all
the patent issues in a sensible way is far more interesting than finding
someone with an efficient implementation.

Regards,
Steve

>fizteh89 wrote:
>> A stupid question:
>>
>> How does GAO Research handle all those multiple patents involved
>> in developing any decent speech coding algorithm ?
>>
>> Do they actually pay for patent licenses themselves or they just leave
>> their customers with false impression that they can legally use those
>> patented by someone else solutions in their products without securing
>> proper licences from actual patent holders ?
>
>For a lot of things, like codecs, finding someone who can deal with all
>the patent issues in a sensible way is far more interesting than findin

>someone with an efficient implementation.
>
>Regards,
>Steve


No wonder then that TI decided to do the CODECS themselves in DaVinci!

--Bhoosha

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