Qualcomm Whispers About Active Noise Cancellation Chip

[cdmagurus.com]

Qualcomm today said its latest Bluetooth audio system-on-a-chip is able to provide active noise cancellation for wireless headphones. The CSR8765 makes it possible for Bluetooth headphone designers to drop separate, dedicated active noise cancellation chips from their headsets and instead add the feature via the Bluetooth radio itself. Qualcomm believes this will let headphone makers create smaller, more powerful headphones that can be used with mobile devices such as smartphones. Moreover, the CSR8675 includes embedded 120 Mhz 24-bit DSP as well as Qualcomm's aptX and aptX HD audio technologies for high-quality Bluetooth audio. Qualcomm says the module can deliver up to 12 hours of active noise cancellation at reduction rates of -23 dB.


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