Voice Command Remote Control

Add a voice command interface to remote controls using Cirrus Logic’s complete audio path solution including low-power, always-on voice processors with ASR enhance.

Voice Command Remote Control


Voice Processor
  • HD Voice/wideband and narrow-band support
  • Voice Activity Detector (VAD) for low power “Always on” command recognition applications
  • ASR Enhance™ pre-processor for increased ASR accuracy in noise
  • Transmit (Tx) and receive (Rx) noise elimination
  • AEC plus non-linear residual echo suppressor for superior full-duplex echo-free speakerphone operation
  • Ambient aware parametric EQ and automatic level control for both Tx and Rx voice streams
  • Automatic volume control for Rx output
  • Spectrally matched comfort noise generator for Tx voice and comfort noise generator for Rx stream
D/A Converter & Headphone Amplifier
  • Stereo 24 bit DAC, 96 kHz sample rate
    • 98 dB dynamic range
    • -86 dB THD+N
  • Stereo headphone amplifier
    • 88 mW into 16 ohms @ 2.5V
    • -75 dB THD+N
  • Digital signal processing engine
MEMS Microphone
  • Digital, top and bottom ports
  • 63 dB signal-to-noise ratio (SNR)
  • 120 dB acoustic overload point (AOP) @ 10% THD
  • -26 dBFS/Pa sensitivity with ±1 dB tolerance

D/A Converters/Headphone Amplifiers

Supported Products
  • CS43L21
    98 dB, 96 kHz, Low Power, Stereo DAC
  • WM8912
    Ultra Low Power Stereo DAC with Headphone Driver
  • WM8918
    Ultra Low Power Stereo DAC with Headphone Driver

MEMS Microphones

Supported Products
  • WM7216E
    Low Power Top Port Digital Silicon Microphone
  • WM7236E
    Bottom Port Digital Silicon Microphone
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