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Neural network-based speech recognition technology for voice assistants and IoT devices
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PDM-to-PCM converter with WhisperTrigger Voice detection feature
sDSA-VD-LP.02 is a PDM-PCM converter to interface with a digital microphone. This product optionally includes a unique WhisperTrigger? -a hard-level voice trigger- and an Automatic Gain Control (AGC) for ensuring the best quality of the recording sound whatever the end-user environment.
Features
- PDM to PCM converter with 2 input channels
- WhisperTrigger - low power Voice Activity Detector
- PLL-less feature with programmable audio sampling frequency Fs from 8 to 192 kHz
- Automatic Gain Control (AGC)
- Serial and parallel audio interface for digital audio data, 8-bit μC interface for control with I2C bridge
- Soft mute mode
Block Diagram of the PDM-to-PCM converter with WhisperTrigger Voice detection feature
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