Ambiq Apollo3 Blue Plus Voice-on-SPOT Kit
Ambiq Apollo3 Blue Plus Voice-on-SPOT® (VoS®) Kit implements demos, evaluation, and the creation of ultra-low power audio and voice capabilities on the Ambiq SoC. The kit features always-on voice capability with one or two microphones, signal processing, wake word/command detection, codec, and BLUETOOTH® Low Energy communication. The kit supplies the ultra-low power solution at the MCU and system levels. The kit can facilitate a battery life of up to a year or more on standard alkaline or lithium batteries, depending on application requirements and customer prerequisites.
The Ambiq Apollo3 Blue Plus Voice-on-SPOT Kit can be outlined with or without pre-roll, the lowest power design being without pre-roll. The Apollo3 Blue Plus wakes in microseconds and drives Ambiq or third-party software using less than 1MHz that recognizes voice spectral characteristics. If it detects voice, it turns on the wake word engine (Wake-on-Voice). When a wake word is detected, a codec suitable for the application compresses the phrase and can transmit over BLUETOOTH Low Energy. The kit has been tested with close talk, near field, and remote control far field under standard testing conditions for Response Accuracy Rate (RAR), False Acceptance Rate (FAR), and False Rejection Rate (FRR). Independent and comprehensive testing of the VoS kit has been conducted at various sites, including partners' and Ambiq's audio labs.
Features
- Ambiq's patented SPOT® technology provides up to 10x lower active power consumption than competing voice solutions
- Inclusion or exclusion of audio and other functional features to create baseline and diagnostic builds
- One or two PDM-driven digital microphones connected to Apollo SoC's stereo PDM interface
- Capture of an audio buffer output over BLUETOOTH Low Energy (AMA protocol) to Amazon Alexa app for using Alexa Voice Service (AVS)
- Capture of an audio buffer output over BLUETOOTH Low Energy (ATV Voice Service protocol) to Android TV or set-top box for using Google Assistant
- Transfer of an audio buffer between Apollo family EVBs and over the SEGGAR RTT interface to a PC for the generation of a WAV file
Applications
- Smartwatches/bands
- Trackers
- Remote controls
- Remote mics
- Gaming controllers
- Smart sensors
Specifications
- Ultra-low supply current
- Apollo3 Blue Plus
- 6uA/MHz MCU
- 1uA deep sleep power
- High-performance Arm® Cortex®-M4F processor with up to 48MHz nominal clock frequency and 96MHz turboSPOT® mode
- Ultra-low power memory
- 2MB of Flash memory
- 768KB of low-power RAM
- 16KB 2-way associative/direct-mapped cache
- Integrated BLUETOOTH low-energy
- RF sensitivity of -93dBm
- TX Power of +3dBm maximum
- Wide operating range of 1.755V to 3.63V, -45°C to +85°C
- Wakeword/command detection is sensory
- Hardware
- Apollo3 Blue Plus EVB
- Apollo3 Blue Plus audio shield click board
- DMIC (Digital microphone) click board - Memsensing MSM261D4030H1AP (x3)
- Software
- Ambiq
- VoS SDK
- Wake-on-Voice
- Filters
- Codec
- Opus
- mSBC
- ADPCM
- Third-party
- Signal Processing of DSP concepts
Kit Contents
- Apollo3 Blue Plus EVB
- Apollo3 Blue Plus audio shield click board
- Digital microphone click board (Memsensing MSM261D4030H1AP)
Associated Products
Ambiq Apollo3 Blue Plus System-on-Chip
Offers ultra-low power in a highly integrated SoC platform based on Ambiq's patented SPOT®.
Associated Board
Ambiq Apollo3 Blue Evaluation Board
Ideal for battery-powered applications and is based on the Apollo3 Blue SoC in the BGA package.
Block Diagram
