Development Kit Offers Complete Low Power, Two-Mic Solution to
Deliver Superior Alexa Voice Interaction Experiences
AUSTIN, Texas--(BUSINESS WIRE)--
Cirrus Logic (NASDAQ: CRUS), the audio and voice IC market leader, today
introduced a development kit for Alexa Voice Service (AVS), optimized
for smart speakers and smart home applications including voice
controlled devices, hands-free portable speakers and networked speakers.
With the Cirrus Logic IC and software design, the Voice
Capture Development Kit for Amazon AVS helps manufacturers quickly
get to market with new Alexa-enabled products that feature high-accuracy
wake-word triggering and command interpretation even in noisy
environments and during music playback.
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The Cirrus Logic Voice Capture Development Kit for Amazon Alexa Voice Service. (Graphic: Business Wire)
The low power Voice Capture Development Kit for Amazon AVS includes a
reference board that features Cirrus Logic’s CS47L24 smart codec,
CS7250B digital MEMS microphones and SoundClear® algorithms
for voice control, noise suppression and echo cancelation [for video, click
here]. The turnkey voice capture reference design enhances “Alexa”
wake-word detection and audio capture in real world conditions, even
from moderate distances in noisy environments, and enables users to
reliably interrupt loud music or Alexa response playback. The smart
codec uses an on-chip, high-performance digital-to-analog converter
(DAC) with a two-watt mono speaker driver to enable high-fidelity audio
playback.
“We’re excited to be working with Cirrus Logic to help OEMs bring Alexa
to more smart speakers and other audio form factors,” said Priya Abani,
director, Alexa Voice Service. “Cirrus Logic’s Voice Capture Development
Kit for Amazon AVS delivers advanced acoustic tuning along with proven
hardware and software components to allow device-makers to bring
products to market faster and more efficiently.”
“With our expertise in audio and voice ICs and software, we are giving
manufacturers of smart home applications a powerful, easy-to-use voice
capture development kit for creating Alexa-enabled products,” said Carl
Alberty, vice president of Marketing, Cirrus Logic audio products. “Our
AVS development kit delivers superior voice command performance that
when combined with the Cirrus Logic tools and software provided, enables
OEMs to bring high-fidelity speakers with superior Alexa voice
interaction to market faster.”
Cirrus Logic Voice Capture Technology Enables Improved Performance
Cirrus Logic’s voice capture solution elevates the user experience by
suppressing noise and other real world interference for more accurate
and reliable voice interactions. This technology improves “Alexa”
wake-word detection in both quiet and noisy environments and with the
user several meters away from the device. Cirrus Logic’s echo
cancelation technology is critical to achieving a superior user
experience by allowing the user to “barge” into or interrupt loud music
playback and Alexa responses, so Alexa can respond accurately to new
requests.
The ultra low noise floor and wide dynamic range (103 dB) of Cirrus
Logic’s MEMS microphones assure precise voice capture in challenging
noise conditions, enabling Cirrus Logic’s SoundClear algorithms to block
noise that would otherwise interfere with Alexa wake-word and request
accuracy.
Cirrus Logic’s smart codec integrates hi-fi DACs, a stereo headphone amp
and mono speaker amp to provide OEMs with a low cost bill of materials
for products ranging from high-end speakers to simple digital
assistants. Designed with the needs of ultra low power portable devices
and accessories in mind, it typically consumes 80 percent less power
versus competing solutions.
The kit is a complete solution that includes a voice capture board with
high performance two-microphone array, Raspberry Pi 3 (RPi3), speaker
and a microSD card preloaded with all required firmware for instant
productivity. Cirrus Logic’s control console simplifies operation of the
various RPi3 applications and provides a robust, user-friendly interface
to perform acoustic tuning and diagnostic functions. The voice capture
reference board’s schematic design and bill of material are designed for
use in most AVS applications with minimal customization, further
reducing time-to-market.
Pricing and Availability
The Cirrus Logic CRD1569-1 Voice Capture Development Kit for Amazon AVS
is available to qualified commercial device manufacturers through
Digi-Key at https://www.digikey.com/products/en?k=598-2471-KIT-ND.
OEMs developing AVS-enabled products can find more information on the
Amazon Developer site: https://developer.amazon.com/alexa-voice-service/dev-kits.
Cirrus Logic, Inc.
Cirrus Logic is a leader in high performance, low power ICs for audio
and voice signal processing applications. Cirrus Logic’s products span
the entire audio signal chain, from capture to playback, providing
innovative products for the world’s top smartphones, tablets, digital
headsets, wearables and emerging smart home applications. With
headquarters in Austin, Texas, Cirrus Logic is recognized globally for
its award-winning corporate culture. Check us out at www.cirrus.com.
Cirrus Logic, Cirrus, the Cirrus Logic logo design and SoundClear are
registered trademarks or trademarks of Cirrus Logic, Inc. Other company
names and/or brands may be trademarks or service marks of their
respective owners. © 2017 Cirrus Logic, Inc. All rights reserved.

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Source: Cirrus Logic, Inc.