Kane Computing Introduces SPARSE Line Echo Cancelling Solution

5/5/2003 - Kane Computing announces the original version of the ITU G.168 compliant SPARSE Line Echo Cancelling solution from Spirit. To be used mainly with T1/E1 lines, the SPARSE Line Echo Cancelling solution is a 30 channel version of Spiritís G.168-2000 MIPS Economy Echo Canceller implemented on a single TMS320VC5510 DSP, making it extremely cost effective in comparison with existing hardware solutions.

One of the distinguishing features of the SPARSE Line Echo Cancelling solution is that it runs as a full TAP LEC solution with short tail lengths, while operating as a SPARSE solution with long tail lengths. MIPS can be traded for tail length for each channel separately.

The solution is well suited for gateways and central office equipment that supports advanced echo suppression functionality.

The software is eXpress DSPTM Compliant and has low MIPS and memory requirements. The functions are C-callable with user configurable parameters. Other features include; multiple channel operation, a maximum compensated echo path of 128ms, non-linear processor, comfort noise generator, automatic tail search, fast convergence, no divergence due to double-talk, tone disabler disables echo canceller during voiceband modem connections, convergence monitor and excellent voice quality.

The SPARSE Line Echo Cancelling solution consumes 5.6 MIPS, 2.6 Kwords of program memory, and 2.4 Kwords of data memory per channel, and functions mainly on 64 ms and 128 ms echo tail. With short tail length (16 to 64 ms) the solution functions as a full TAP LEC.

The SPARSE Line Echo Cancelling solution is available in the form of object codes for TIís C55x DSP and in the form of C code that could be ported to other platforms.

About Kane Computing Ltd
KCL has been providing Image Processing, DSP and high performance computing products for use in industry, education and research since 1987. The last few years has seen considerable growth within KCL in the high performance and Digital Signal Processing markets. KCL started life as Sension Advanced Computing, designing, manufacturing and supplying parallel processing products based around the Inmos transputer. In 1995 it became part of Kane International Ltd and subsequently changed its name to Kane Computing. In October 2001 Kane Computing became an independent Company, Kane Computing Ltd. KCL are now regarded as the primary source of fully supported development tools for Texas Instruments series of DSPs in the United Kingdom. KCL provide a whole range of products based around Texas Instrument's TMS320 range of DSP's. This includes starter kits, development systems, application boards and emulators. KCL has a policy of continual improvement and operates its business in accordance with the requirements of ISO9001:2000.

SPIRIT (www.spiritdsp.com) is a prominent supplier of high-quality DSP software products, including VoIP, FoIP, speaker ID, speech processing, telephony, GPS, MP3, video compression, and more. SPIRIT's flexible licensing model includes cost efficient product customization to specific clients' needs. SPIRIT communication software works within hardware solutions from clients including Atmel, Furuno, JRC, NEC, Nortel Networks, Panasonic, Samsung, Tadiran, Texas Instruments, and Toshiba among others. Since 2001, Texas Instruments is shipping SPIRIT's software bundled with TI C54 CST processor.

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