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SM018 Speech Synthesiser Board

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Key Features

The new SM018 MP3 enhanced speech module has been specifically designed to plug into the Dewhurst CH024 & Ch034 Serial Encoder Board. Through dedicated inputs on the encoder it provides  facilities for floor identification, door opening, door closing, direction of travel as well as warning and information announcements.


  • Speech bandwidth is increased from 4KHz to 16KHz thereby providing better speech quality.
  • Speech Storage is on a MMC / SD card for easy modification to the speech files in memory.
  • It can announce up to 3 languages per floor.
  • It can play background music during idle period.
  • The 4 minute limit of the SM018 MP3 is increased to at least 800 minuntes of speech using a 128MB MMC card with moderate MP3 compression.
  • No limit of duration per phrase.

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