[Real-time] noise reduction earplugs hit? Qualcomm integrates noise reduction into a single chip

Qualcomm subsidiary Qualcomm Technologies, International, Ltd. announced that its CSR8675 product platform has introduced active noise reduction (ANC) technology, making it the world's first integrated active noise reduction Bluetooth audio system-on-chip (SoC), reducing the The complexity and cost of active noise reduction in headphones.

The noise reduction chip in the past needs to be independent of other audio system chips, which leads to the high cost of the active noise canceling headphones, and the volume is usually larger. The emergence of Qualcomm's CSR8675 enables manufacturers to design and manufacture smaller, compact, noise-canceling headphones at a lower cost. At present, the Hearable, which is the smart device on the ear, is also beginning to attract people's attention. The CSR8675 platform provided by Qualcomm is more conducive to the design of multi-functional earplug devices.

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In addition, another technology that supports true wireless earbuds is TrueWireless stereo technology: no cables between media sources and stereo headphones are the norm. This technology also allows cables to be left between left and right earbuds. The realization principle of this technology is to transmit standard audio between the mobile phone and one of the earphones, and then transmit it to another earphone through the channel.

Although the data transfer between the headset and the audio source is not synchronized, TrueWireless low-delay optimization is sufficient to ensure the auditory experience. The TrueWireless reference design is now available for audio OEMs and headset manufacturers and can significantly reduce the vendor's R&D time.

It may be that in the next year or two, we will see more and more real wireless earbuds, just like the AirPods.

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