20 Seconds Voice Record – Playback

  • Rajkumar Sharma
  • 5364
  • medium
  • Tested


This project is a message recording board capable of recording 10 to 20 secs  depending on audio quality.


This project has been designed around Winbond’s ISD1616 IC (SMD) IC, which is fully integrated, single-chip, single message voice record and playback device ideally suited to a variety of electronics systems, Message duration is user selectable in ranges from 10 to 20 Seconds depending on the sampling rates from 4 KHz to 12 KHz adjustable via preset, giving the users greater flexibility in duration versus recording quality.

Applications:Toys, Amusement Equipment’s, Interactive Games, Lifts/Escalators, Warning Systems, Security Systems, Audio Guide, Home Appliances, Robotics, Animatronics, Light and Sound Show .


  • Power supply input 5 VDC @ 100 mA
  • Power supply spans a range from 2.4 to 5.5 VDC
  • Standby current 1 uA typical and 10 uA maximum without power LED
  • Enters standby mode immediately after record playback cycle
  • Microphone preamplifier with automatic gain control built in IC
  • PWM Class D speaker driver
  • Speaker 8 Ohms
  • Onboard microphone
  • Easy operation via onboard tact switches
  • Onboard tact switches for Level trigger Play, Edge trigger Play, and Recording
  • Onboard power indication
  • Onboard preset for sampling rates settings
  • Onboard recording indication
  • Supply input and speaker terminal via berg connector
  • Low Noise high quality voice record/playback
  • 100 Year massage retention
  • 100,000 record cycles
  • Speaker is not provided with kit




Parts List



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