About this document
Voice-Activated Switch (VOX) Module by Devendra Namdeo is a document available to read on EtoBox.
The VS1 is a compact voice-activated switch module that uses a dual op-amp integrated circuit to amplify microphone signals and detect when speech is present. It can switch loads of up to 100mA at 9-12V DC, such as radio transmitters, and includes components and instructions for adjusting the voice detection delay and gain. Additional circuitry would be required for more advanced functions like toggling or anti-voice-triggering to prevent triggering from speaker audio.
- Author
- Devendra Namdeo
- Language
- EN