AEC / ENC for Peripheral

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Product Information

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The CM6571 is a USB 2.0 audio chip with a built-in 8051 and DSP designed for a wide range of applications. With an internal two-channel ADC/DAC, S/PDIF, it is perfectly suited for gaming headset, speakerphone, surround speaker or Apple docking applications.

The CM6571 is a USB audio class 1.0-compatible, boasting plug and play functionality without installing additional software on popular operating systems. The internal DAC/ADC and S/PDIF out interface supports 96k/88.2k/48k/44.1kHz sampling rates and 16/24-bit resolutions.

Furthermore, the DSP inside CM6571 supports voice and audio process. Voice process includes Environment Noise Cancellation, Acoustic Echo Cancellation and Noise Reduction, functions that produce better communication experience. Audio process includes Xear™ surround headphone, sound expander, dynamic bass, audio brilliant, smart volume and parameter Equalizer, processes that enrich music playback, movie and gaming battle sound vividness.

Cmedia CM6571.jpg

Symmetry Electronics (and its e-commerce division: is an authorized Cmedia distributor.


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USB 2.0 full speed-compliant
USB audio device class 1.0-compliant
USB human interface device (HID) class 1.1-compliant
Built-in DSP for voice and audio process
Voice process supports ENC, AEC and NR
Audio process supports Xear Surround, Sonic and parameter EQ
Embedded 1T 8051
Two-channel DAC for audio output interface
Two-channel ADC for audio input interface
Aux in for AEC signal reference
Built-in 96k/88.2k/48k/44.1kHz and 16/ 24-bit S/PDIF transmitter
Supports I2S in/out interface and up to 96kHz/ 24 bits
Built-in AGC on recording path


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Cmedia CM6571 Application Note
Cmedia CM6571 Datasheet
Cmedia CM6571 Schematic
Cmedia CM6571 Supporting Documents

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AEC / ENC for Peripheral