Switching between wireless music playback and voice calls, CSR’s BlueTunes ROM ROM-based Bluetooth development kit integrates a DSP for stereo headsets. The Bluetooth v2.1+EDR-compliant component offers an integrated stereo codec providing 95 dB SNR, support for sub band codec and mp3 decoding, a configurable 5-band equalizer, and a 180 mAh battery enabling over 10 hours of music playback. The unit utilizes the FastStream music and video codec for 200 ms latency; clear voice capture (CVC) technology for single and dual microphone solutions; an acoustic echo canceller for eliminating echo and background noise; and AuriStream Voice codec for voice quality when on a call. The BlueCore5-Multimedia Bluetooth chip-based kit includes a development board, example reference designs, an audio adapter, a music voice (MV) dongle, and a configuration tool for tuning the audio performance for voice calls and listening to music.
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