Product specifications
The Apollo3 Blue Plus Voice-on-SPOT® (VoS®) Kit facilitates demos, evaluation, and the development of ultra-low power audio and voice capabilities on the Ambiq® system on chip (SoC). The Kit provides always-on voice capability with options for one or two microphones, signal processing, wake word/ command detection, codec, and Bluetooth® Low Energy communication. The Kit delivers the complete ultra-low power solution at the MCU and system levels. Depending on application requirements and customer aspirations, the Kit can enable battery life up to a year or more on standard alkaline or lithium batteries.
• Industry-leading ultra-low power processing with hardware Pulse Density Modulation (PDM) to Pulse Code Modulation (PCM) conversion.
• Integrated Bluetooth Low Energy radio for smart home and IoT applications.
The kit can be configured with or without pre-roll. The lowest power scenario is without pre-roll which is described here. The Apollo3 Blue Plus wakes in microseconds and runs Ambiq or third-party software using less than 1MHz that identifies voice spectral characteristics. If it detects voice, then it turns on the wake word engine (Wake-on-Voice). Ambiq software dynamically manages and tunes this process. When a wake word is detected, a codec appropriate for the application compresses the utterance 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 False Rejection Rate (FRR), False Acceptance Rate (FAR), and Response Accuracy Rate (RAR). Independent and thorough testing has been conducted of the VoS Kit at various sites, including partners' and Ambiq's audio labs.
Hardware
- Apollo3 Blue Plus EVB
- Apollo3 Blue Plus Audio Shield Click Board
- Digital Microphone Click Board (TDK T5838)
Software
Ambiq
- Voice-on-SPOT SDK
- Wake-on-Voice
- Filters
- Codec:
- Opus
- mSBC
- ADPCM
Third Party
- Signal Processing:
- DSP Concepts
- Wake word / Command detection:
- Sensory
- Ambiq Product -