CSR launched the world's first ROM Bluetooth solution with built-in stereo DSP, designed for stereo headphones
The world's leading wireless technology provider CSR has launched BlueTunes ROM, which is the world's first ROM Bluetooth solution designed specifically for stereo headphones and integrated with a digital signal processor (DSP). It is designed to allow end users to seamlessly switch between wireless music playback and voice calls. BlueTunes ROM is a low-power design, and is the most cost-effective and highest-quality Bluetooth music solution currently on the market, suitable for stereo headphones and wireless speaker products.
BlueTunes ROM is implemented based on BlueCore5-multimedia. BlueCore5-Multimedia has excellent audio performance, and its integrated stereo CODEC can provide a signal-to-noise ratio of 95dB. In addition, its flexible DSP architecture enables designers to add various additional functions to achieve differentiation of end products. BlueTunes ROM supports SBC and MP3 decoding (licensing required), can obtain better music playback audio quality, and has a configurable five-band equalizer (EQ) to improve the end user experience. This low-power design of BlueTunes ROM enables a 180-mAh battery to achieve up to 10 hours of music playback.
In addition, BlueTunes ROM also integrates FastStream, which is a low-latency, high-quality music and voice CODEC, which can greatly reduce the delay of the audio link, thereby avoiding the "lip-sync" problem, which is a pair of viewing Listening to audio through headphones or speakers while video is particularly helpful. The delay of standard Bluetooth solutions exceeds 200 milliseconds, thus limiting their adoption in real-time applications such as games, video or mobile TV.
BlueTunes ROM not only excels in music playback, it also provides a variety of high-end Bluetooth headset functions for calls. BlueTunes ROM uses CSR's patented Clear Voice Capture (CVC) technology, which supports single and dual microphone solutions. In addition to CVC, BlueTunes ROM also includes AcousTIc Echo Canceller, which can reduce echo and background noise, thereby further enhancing the end user experience. BlueTunes ROM also integrates CSR's patented AuriStream voice decoder, which can provide excellent voice quality during calls.
In order to achieve the best end user experience, BlueTunes ROM fully complies with Bluetooth v2.1 + EDR technical specifications and supports secure simple pairing (secure simple pairing) function, which greatly simplifies the Bluetooth pairing process.
CSR provides a full set of BlueTunes ROM development components, including development boards, reference designs, audio adapters and Music Voice (MV) dongle, to achieve an easy development experience. In addition, the development component also includes a configuration tool that can adjust the audio performance of voice calls and listening to music.
Anthony Murray, Senior Vice President of CSR's Wireless Audio Strategy Business Unit, said: "BlueTunes ROM provides manufacturers with an opportunity to design smaller, lighter, more cost-effective and more feature-rich Bluetooth stereo headsets. More and more manufacturers are integrating MP3 players in their mobile phones, and BlueTunes ROM enables users to easily switch between music and calls through wireless connections. We include FastStream and CVC technology to ensure that headset manufacturers can Customers provide best-in-class, market-leading audio quality. "
CSR's BlueTunes ROM chip and development components are currently being sampled and will be available for sale in December.
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