Product category:
Embedded Software and Operating Systems
News Release from: Kane Computing | Subject: Spirit MAEC software
Edited by the Electronicstalk Editorial
Team on 01 August 2003
Software takes out mobile echoes
Spirit has developed mobile acoustic echo cancellation (MAEC) software, designed to seamlessly work in mobile devices.
Spirit has developed mobile acoustic echo cancellation (MAEC) software, designed to seamlessly work in mobile devices The software is a highly integrated solution with such features as echo cancellation, noise suppression and narrow signal protection
This article was originally published on Electronicstalk on 10 Apr 2002 at 8.00am (UK)
Related stories
Fibre-optic link for long-range digital video
Opticlink is a novel system for transmitting digital video over long distances (up to 10km) using fibre optic cables.
PCMCIA JTAG emulator endorsed by TI DSP
Kane Computing claims that its Predator PCMCIA JTAG emulator was used by Texas Instruments to communicate with the first TMS320C6416 DSPs to come out of its fab, and it all worked first time.
MAEC is focused on mobile telephony devices, including cellular phones, hands-free mobile sets, car kits and smartphone devices.
Wireless mobile devices present new and different challenges to those found in telephony and Internet telephony applications and these challenges have been successfully overcome with Spirit's latest echo suppressing technology.
No less important is a growing requirement to avoid the harmful effect of having mobile phones too close to the head, which has lead to greater use of hands-free devices and high demand for echo free speech quality.
Dramatic improvement in sound quality is achieved through a combination of techniques including: sophisticated full-duplex control, high robustness to the specifics of mobile equipment, such as noise and nonlinear distortions, reliable double-talk detector, enhanced non-linear processing and subband processing and adaptive filtering.
The software is distinguished by such features as: true full-duplex speakerphone operation, more than -42dB total echo rejection, fast convergence and dynamic adaptation to changing conditions such as noise, speech levels, or delay.
Spirit's acoustic echo cancellation software has a proven track record, being integrated in the leading European videophone and e-mailer products.
Spirit's MAEC software is written as fixed-point DSP code, and is readily ported to a variety of DSP or RISC architectures, such as Texas Instruments C54x, C55x, ARM7/9/strongARM, xScale and Calm16. Request a free brochure from Kane Computing ...
• Kane Computing: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
Search the Pro-Talk network of sites
