Product category:
Reference Designs
News Release from: Cambridge Silicon Radio | Subject: RoadRunner Plug-n-Talk
Edited by the Electronicstalk Editorial
Team on 02 July 2007
Hands-free design takes echo
cancellation onboard
Fully interoperable reference design provides customisable package for OEMs to create a low-cost Bluetooth hands-free kit.
CSR has enhanced the attributes of its RoadRunner Plug-n-Talk through an integrated echo cancellation feature Available now, RoadRunner Plug-n-Talk is a ready engineered, fully interoperable reference design supplying OEMs and ODMs with a customisable package from which to create a low cost Bluetooth hands-free kit
This article was originally published on Electronicstalk on 24 Oct 2006 at 8.00am (UK)
Related stories
Blueprint for Bluetooth hands-free design
RoadRunner Plug-n-Talk provides OEMs and ODMs with a pretested and customisable package from which to create a low-cost Bluetooth hands-free kit.
Complete Bluetooth bundle aids PC applications
CSR (Cambridge Silicon Radio) and WIDCOMM have announced the availability of a combined Bluetooth single-chip and software solution.
The implementation of the integrated echo cancellation feature further boosts this already proven design, and provides greater enhanced sound quality whilst in the automotive cabin environment.
CSR's RoadRunner is a complete, production ready solution, offering everything needed to create a state of the art, hands-free application.
Based on BlueCore3-Multimedia with on-chip DSP and codec, it provides all the elements needed to take an idea into production in the shortest period of time.
Further reading
Amsterdam Bluetooth demo shows web-based control
A web-based remote controller for a DVD player has provided the first ever demonstration of Internet Protocol version 6 (IPv6) running over Bluetooth wireless technology.
Flash memory is optimised for Bluetooth
Cambridge Silicon Radio and Fujitsu have been working together to develop Flash memory optimised for Bluetooth requirements.
Development kit gains more Bluetooth software
The CompactSira development kit from Cambridge Silicon Radio now comes with a sample CD of Rappore's Bluetooth host protocol stack, profiles and My Wirefree Network user interface.
Included in the package is CSR's BlueLab software, a configuration tool that offers full access to the source code, allowing designers to alter the Flash parameters and change elements such as call handling, PIO assignment to buttons, MMI and ring tones, without disrupting the pre-established Bluetooth device interoperability.
Designers will be able to differentiate easily and customise their products in the battle to maintain a competitive edge.
The accelerated uptake of Bluetooth based, hands-free kits, has had a major impact on the global trend towards hands-free calls whilst driving.
Recent changes to legislation have reinforced the dangers attached to using mobile phones at the wheel, to include the use of hands-free kits.
There are numerous automotive kits currently on the market catering for factory fitted and aftermarket solutions, however a common criticism of both has been poor audio quality and difficulties in fine-tuning between the speaker and microphone.
The integrated echo noise cancellation feature boasts a parameter manager allowing fine-tuning to the final suite product, and has been implemented as the preferred solution by major car manufacturers across the world.
RoadRunner also benefits from CSR's proprietary Clear Voice Capture (CVC) software.
The addition of CVC further improves voice quality by combining advanced echo and noise suppression algorithms, which allow the speaker's voice to be transmitted to the caller at the other end of the line with more clarity.
A third party text to speech (TTS) engine, provided by NowSpeak technologies is an optional software addition to the design and has been developed specifically for CSR's BlueCore-Multimedia technology.
TTS offers voice prompts for hands-free operations including incoming caller ID, PIN code alert announcements and fixed phrases during device operation.
According to Rafik Jallad, Vice President of CSR's Automotive Strategic Business Unit: "Changes in legalisation have called for stricter rulings on the use of hands-free technology".
"We feel that the addition of integrated echo noise cancellation will further boost the attributes of CSR's RoadRunner to be at the cutting edge in supporting consumers with the technology needed to ensure their safety isn't compromised".
• Cambridge Silicon Radio: 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
