Automatic speech recognition sdk¶
At present, ROC-RK3308-CC Linux SDK has supported with three Intelligent speech recognition sdk, which are Alexa，DuerOS, iFlytek, and aispeech .
Accessories required for voice development:
6-Mic PDM array
Speakers or headphones, currently only support AUX interface access
6-Mic PDM array¶
Mic: support 6-Mic record and 2-mic recovery
LED: 12 programmable RGB LED indicators, rich lights indication can be used to prompt network status, auditory localization, answering prompt, and error prompt, etc.
It integrates with five adc keys
The five adc keys include:
VOL+ used for increase or decreasing voice,
MIC_MUTE used for prohibiting microphone voice recording,
MODEused for switching device modes, and
Play/Pauseused for controlling the playing or pause of the device.