CSR RoadRunner Plug-n-Talk Reference Design Features Echo Cancellation

CSR plc announced that it 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 handsfree kit. 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 RoadRunner Plug-n-Talk Reference Design with Echo CancellationCSR’s RoadRunner is a complete, production ready solution, offering everything needed to create a state of the art, handsfree 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. 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, handsfree kits, has had a major impact on the global trend towards handsfree driving. Recent changes to legislation have reinforced the dangers attached to using mobile phones whilst at the wheel, to include the use of handsfree 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 handsfree operations including incoming caller ID, PIN code alert announcements and fixed phrases during device operation.

Rafik Jallad, Vice President of CSR’s Automotive Strategic Business Unit commented, ‘Changes in legalisation have called for stricter rulings on the use of handsfree 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.’

About CSR
CSR is the leading global provider of personal wireless technology and its product portfolio covers Bluetooth, GPS, FM receivers and WiFi (IEEE802.11). CSR offers developed hardware/software solutions, based around its silicon platforms, that incorporate, fully integrated radio, baseband and microcontroller elements. CSR’s customers include industry leaders such as Apple, Dell, LG, Motorola, NEC, Nokia, Panasonic, RIM, Samsung, Sharp, Sony, TomTom and Toshiba. CSR has its headquarters and offices in Cambridge, UK, and offices in Japan, Korea, Taiwan, China, India, France, Denmark, Sweden and both Dallas and Detroit in the USA.