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Automatic speech recognition sdk

Preface​

At present, ROC-RK3308-CC Linux SDK has supported with three Intelligent speech recognition sdk, which are Alexa，DuerOS, iFlytek, and aispeech .

Accessories​

Accessories required for voice development:

  • ROC-RK3308-CC
  • 6-Mic PDM array
  • Speakers or headphones, currently only support AUX interface access

Features​

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- and 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.