Audio message repeater

June 2002 Infrastructure

Alf-Tech has introduced an MP3 digital audio programmable player (DAPP) for emergency messaging and other audio-on-demand applications in security and related industries.

Application can vary from emergency messaging, pre-recorded church bell/fire alarm/siren type playback, access control with audio feedback and direction, intruder warnings and alerts, audio theft and vandalism deterrents, public addresses messaging - wherever pre-recorded audio feedback is required.

The Alf-Tech DAPP can record 32 minutes of near CD quality audio playback, or 70 minutes high-quality mono voice playback with the 16 MB memory option installed. It features 16 hardware trigger inputs that each can play a pre-recorded audio file. It also has 60 programmable day timers that can each play a separate audio file with the internal clock accurate to ±1 minute/year and battery backed-up. Optional RS485 interfacing allows unlimited access to programmable triggers.

The configuration, audio file preparation and trigger assignments are managed by accompanying Microsoft Windows based application software running on standard PCs and using standard sound systems. Each audio file can be given its own compression settings, thus mixed quality audio can be used, with the highest quality setting comparable to CD audio quality. All data is then downloaded to the DAPP via a parallel port cable, whereafter the DAPP can be disconnected from the PC and installed in the application. All DAPP audio data and set-up information is stored on flash memory. Audio output is via balanced line-out, and each trigger has various set-up options, including: priority level, voltage polarity, single event or looping.

For more details contact Stephan Dednam, Alf-Tech, on tel: 021 851 7126, e-mail: [email protected]





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