Adaptive Digital Introduces Its Open-Source G.PAK(TM) - A Reference VoIP DSP Application28 February 2006
Adaptive Digital Technologies' (Adaptive Digital) Open G.PAK(TM) is a GUI configurable, open source reference application for VoIP DSP software applications. Built upon two previous generations of the G.PAK product; Open G.PAK brings with it the benefits of open source software.
The G.PAK(TM) product in its original conception consisted of two components: the VoIP DSP software and a Windows-Based configuration utility. The VoIP DSP software includes all the DSP functionality necessary for most VoIP applications from IP gateways to IP phones. A typical G.PAK configuration may include echo cancellation, tone detection and generation, conferencing, and a variety of voice codecs. By including only the components, channel types, and peripherals required by a specific application the G.PAK generates a customer specific downloadable DSP software image. By removing unneeded functionality, the DSP application fits into the most cost- effective DSP chip. Conceivably the G.PAK framework application tool can provide the customized downloadable image in mere minutes.
In some cases, this is the end of the story, but in other cases it is necessary to customize the G.PAK software beyond the capabilities of the automated configuration utility. For example, an application may require a custom algorithm or a custom interface.
Previous versions of G.PAK required any such customization to be done by Adaptive Digital. By incorporating Open Source into G.PAK(TM), Adaptive Digital has empowered its customers to take control of the DSP application by allowing them to modify the fully tested G.PAK source code themselves. This gives them a remarkable head start in their application development.
Open Source G.PAK is provided initially as a software development kit (SDK). The Open G.PAK SDK runs either on a Texas Instruments (TI) low-cost TMS320C6416 DSP Starter Kit (DSK) or a TI TMS320DM642 Evaluation Module (EVM), a video and imaging development platform. The kit includes the software framework, the G.PAK configuration utility, and evaluation versions of the core set of VoIP DSP algorithms. The kit is able to run VoIP endpoints capable of demonstrating VoIP phone calls between two G.PAK SDKs or between one G.PAK SDK and a production IP phone.
The kit allows the user to build different configurations of G.PAK. Once a suitable configuration has been built, the user can go one step further by modifying the source code and rebuilding the application using TI's Code Composer Studio(TM) Integrated Development Environment. The user can develop a DSP application using the DSK and port the application to his or her product target hardware when it is available.
Open Source G.PAK currently supports the following algorithms.
* G.711
* G.723
* G.729
* G.168 Echo Canceller
* Tone Detection
* Tone Generation
* VAD/CNG
* AGC
* Tone relay
About Adaptive Digital Technologies, Inc.
With over eleven years of experience in the application of DSP in the area of voiceband communications, Adaptive Digital Technologies, Inc. (http://www.adaptivedigital.com ) offers highly optimized carrier-grade DSP Software building blocks designed for Texas Instruments Incorporated's TMS320(TM) DSP family, such as telephony algorithms, speech compression, and echo cancellation, packaged to meet all applications.
Adaptive Digital's DSP 'Chip' Solutions are a collection of DSP algorithms and Texas Instruments hardware components, which together handle signal- processing tasks for specific end equipment. Adaptive Digital's ipPhoneChip(TM), G.PAK(TM) Chip, G.168 Echo Canceller Chip, and Conferencing Chip, lets system designers leverage proven solutions, allowing them to focus their efforts on rapid product development. Adaptive Digital is a member of the TI's TMS320(TM) Third Party Program, the most extensive collection of global DSP development support in the industry. Adaptive Digital Technologies, Inc. is located in suburban Philadelphia, Pennsylvania (USA).
About the Texas Instruments Developer Conference
The 2006 TI Developer Conference (TIDC) features the latest in high- performance digital signal processing, high-performance analog and microcontroller system designs. TI CEO Rich Templeton will be joined by industry leaders, embedded designers, engineers, project managers, educators and other TI executives from around the world for the conference, held from February 28 - March 2, 2006 at the Hyatt Regency in Dallas, Texas. Including keynote speakers, technical presentations and live demonstrations, the conference offers intensive learning and hands-on interaction with cutting edge products to empower the development of the next-generation of video, audio, communications and control applications. For more information, visit http://www.ti.com/tidc2006 .
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Source: prnewswire
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