Smart Thermostats
Cirrus Logic's complete audio path solutions using SoundClear® technology enables a voice command interface to smart thermostats including low power, always-on voice processors with ASR Enhance™.
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Highlighted components are offered by Cirrus Logic.
System Features
ASR Enhance
Automatic speech recognition (ASR) preprocessing for increased accuracy in noisy environments.
Always-On Voice
Reliable wake word recognition from one foot or from across the room.
Low Power
Supports ultra-low power implementation of TrulyHandsfree™ technology from Sensory, Inc.
Noise Reduction and Echo Cancellation
Multi-mic noise reduction and non-linear echo suppression algorithm support.
Recommended
Smart Codec
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CS47L24
Ultra Compact, Low Power Smart Codec with Dual Core DSP
SoundClear compatible -
CS47L35
Smart Codec with Low Power Audio DSP
SoundClear compatible -
CS47L90
Low Power, Highly Integrated Audio Codec Featuring SmartHIFI for Mobile Playback
SoundClear compatible -
WM8281
Low Power Smart Codec with Echo Cancellation
SoundClear compatible
Portable Codecs
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WM8962B
Ultra Low Power Codecs for Portable Audio Applications
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Highlighted components are offered by Cirrus Logic.
System Features
- Increases accuracy and reliability of “Alexa” wake-word triggering and command recognition, at 6+ meters far-field distances and in noisy environments
- Supports 6+ meters far-field operation with 2, 3, or 4 microphones
- Flexible Technology supports arbitrary mic array geometries, including circular, square, triangular, linear or 3-D
- AEC is scalable to mono, stereo, 3-channel, and 5-channel (surround movie or music) use cases
- Includes local high accuracy large model Amazon voice trigger or Sensory voice trigger
- Supports far-field voice call mode and in-call voice triggering
- Suitable for wall-powered devices or portable battery-operated products with low mW consumption
- 6 mics built-in, ready to be configured for testing circular, square, triangular, and line arrays in 4-mic, 3-mic or 2-mic designs
- AVS compliant LED indicators and mic-mute button
- Connectivity includes Wi-Fi 802.11, Bluetooth 4.1, stereo line out, USB device port, as well as a USB host port for connection to external USB soundcard
- Also includes expansion bus for connecting GPIOs, ASPs, SPI, I2C, and PDM mics
- Web-based firmware control console for simplified interactive operation, mic array selection, acoustic tuning and diagnostics
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Recommended
Technical Documentation
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EveryWord Far-Field AVS Development Kit Technology Bulletin
Jun 1, 2020, Rev 1.0 : 779 Kb