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- Path: sparky!uunet!newsflash.concordia.ca!mizar.cc.umanitoba.ca!bison!sys6626!inqmind!dino
- From: dino@inqmind.bison.mb.ca (Tony stewart)
- Newsgroups: sci.electronics
- Subject: Re: Simple voice response device
- Message-ID: <qV9mVB1w165w@inqmind.bison.mb.ca>
- Date: Fri, 11 Dec 92 18:36:37 CST
- References: <gregg.3@bss1.umd.edu>
- Organization: The Inquiring Mind BBS 1 204 488-1607
- Lines: 42
-
- gregg@bss1.umd.edu (Gregg Piermarini) writes:
-
- >
- >
- > A friend here at work wants to know if there is a device which would play a
- > pre-recorded message when a sensor is touched. This person didn't say if
- > they wanted the message to be digitally recorded and stored in memory or
- > just activate a walkman or something like that. I figured that the best
- > place to look for something like this is radio shack. If anybody can point
- > me to a store/catalog or even a circuit schematic/book I would greatly
- > appreciate it. Please leave a message here or send mail to
- >
- > gregg@bss1.umd.edu
- >
- >
- > Thanks a lot
- >
- >
- > Gregg
- >
- >
- >
-
- IF you don't mind interfacing to an answering machine, you can get refurb
- recorders very cheap with a warranty and just use a transistor or
- something to pull-down the voltage on switch contacts of the PLAY or OCO
- I mean.. OGM PLAY switch. You can then take the speaker output to a
- larger external speaker for better quality sound.
- My GE model has 1 TOUCH PLAY which automatically REWINDS,PLAYS MESSAGE
- AND STOPS. ($40 CDN) All you need is 3 wires to do this.
- SIGNAL (to extrnal speaker)
- GROUND (common)
- PLAY- (which is probably 0Vdc or contact closure to ground. and can be
- interfaced from your sensor.
- For long leads >10ft, add a cap on the recorder switch to suppress noise
- and false switching. Since it is edge triggered, momemtary sensor active
- is all you need.
-
- Tony Stewart/ Unisys Canada (204)257-9233 All opinions are my own!
-
- dino@inqmind.bison.mb.ca
- The Inquiring Mind BBS, Winnipeg, Manitoba 204 488-1607
-