Ambiq Brings Intelligent Voice to Battery-Powered Endpoint Devices

By Tiera Oliver

Associate Editor

Embedded Computing Design

May 11, 2021


Ambiq Brings Intelligent Voice to Battery-Powered Endpoint Devices
(Image Courtesy of Ambiq)

Ambiq introduced the new Ambiq Voice-on-SPOT (VoS) Kit, designed for manufacturers to introduce voice-command into their IoT devices.

Aimed to deliver the complete ultra-low power solution at both the MCU and the system levels, the VoS Kit integrates Ambiq's hardware and software with peripherals and third-party IP, including signal processing using DSP Concepts’ Audio Weaver, Sensory VoiceHub, and Retune DSP VoiceSpot

The speech and voice recognition market is projected to be worth $27.16 billion by 2025. Spurred by the pandemic, the adoption of voice assistants will continue to rise as both businesses and consumers look for more ways to interact. The VoS Kit is Ambiq's solution to bring voice and audio capability to battery-powered devices with Always-on-Voice (AoV) functionality. Targeted applications include remote controls, gaming controllers, smart sensors, smartwatches, remote mics, and health trackers.   

Available now, the first VoS Kit, built on the Apollo3 Blue Plus MCU, will support Always-on-Voice with application and cloud service driven options for one or two mics, signal processing, wake word/command detection, codec, and Bluetooth LE (BLE) communication. The next generation, the Apollo4 Blue VoS Kit, targeted for the third quarter of 2021, will further lower always-on power with 2 analog mic inputs, while increasing capabilities with up to 8 digital mic inputs, 120dB SNR (Signal to Noise Ratio) PDM (Pulse Density Modulation) to PCM (Pulse Code Modulation) converter, 192MHz Arm M4F MCU, precise clocking, and advanced interconnectivity with hardware rate matching.  The Apollo4 Blue VoS Kit will expand Ambiq’s repertoire with voice input for phone calls, translation, and audio conferencing. 

For more product information, visit  

Tiera Oliver, Associate Editor for Embedded Computing Design, is responsible for web content edits, product news, and constructing stories. She also assists with newsletter updates as well as contributing and editing content for ECD podcasts and the ECD YouTube channel. Before working at ECD, Tiera graduated from Northern Arizona University where she received her B.S. in journalism and political science and worked as a news reporter for the university’s student led newspaper, The Lumberjack.

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