Kit for Amazon AVS Supports Far-field Voice Interaction

Microchip Technology’s AcuEdge ZLK38AVS Development Kit for Amazon Alexa Voice Service (AVS) introduces far-field voice pick up and the flexibility to build devices with multiple microphone array configurations. Reportedly, the solution reduces BOM costs while addressing the requirements of small-form-factor designs.

 

The kit features the ZL38063 audio processor, which includes a 300 MHz DSP and dedicated hardware accelerators for voice processing. It also features Stereo Acoustic Echo Cancellation (AEC), which enables barge-in recognition to improve performance in extreme audio playback environments.

Free Newsletter

Like this article? Subscribe to FierceSensors!

The sensors industry is constantly changing as innovation runs the market’s trends. FierceSensors subscribers rely on our suite of newsletters as their must-read source for the latest news, developments and analysis impacting their world. Register today to get sensors news and updates delivered right to your inbox.

 

Available microphone configurations include:

  • One-mic configuration – Offers hands-free voice coverage for products where form-factor or cost constraints preclude the use of a multi-microphone array.
  • Two and three-mic linear (180-degree) configurations – Designed for sound bars, smart plugs and switches, set-top-boxes or other applications typically positioned against a wall that benefit from 180-degree far-field coverage.
  • Three-mic triangular (360-degree) configuration – Also with far-field coverage qualified by Amazon, this configuration is well suited for applications that may require user interaction from any direction such as portable speakers, wide-angle IP cameras and voice-enabled Wi-Fi routers.

 

The development kit includes a ZL38063 audio processor that connects directly to a Raspberry Pi® 3B with plastics and mounting hardware to simulate a typical, recommended end-application mic-speaker arrangement. It supports all microphone options and includes an LED ring to report the detected sound location, as well as a high-quality speaker that is representative of a typical smart speaker application.

 

The ZLK38AVS Development Kit for Amazon AVS is available now for $299. For additional information, checkout the product page and visit Microchip.

Suggested Articles

SiC can make medical devices more perceptive, it can make electronics more energy-efficient, and it can help sensors perform in higher temperatures.

Components supplier CTS Corporation has acquired temperature sensor supplier Quality Thermistor, Inc. (QTI), for $75 million in cash.

Infrared (IR) sensors detect the electromagnetic radiation that humans perceive as heat.