matyeo@hfnet.bt.co.uk (Mike Atyeo) (12/06/90)
does anyone know of any XCMND or Mac add-on that allows it to understand DTMF tones? (DTMF tones are the tones made by some phones when ringing a number) I want to translate the tones to their corresponding numbers for use in a Hypercard/Comms stack. Cheers Mike Atyeo (pp Martin Bulmer) -- \\ /| Mike Atyeo \\ RT5512, MLB 2/19 |\\/|| Tel: +44 473 642975 |\\ British Telecom Research Labs | || Fax: +44 473 637557 |_\\ Martlesham Heath, Ipswich | || Gold: 73: thf025 | \\ IP5 7RE, UK.
yossie@fnal.fnal.gov (Yossie Silverman) (12/08/90)
I second the request. An XCMD (INIT, whatever) that read asynchronously from a MacRecorder/SID/LC,IIsi microphone and reported whenever it detected a DTMF tone would be involuable for many applications! Thanks - Yossie --- yossie@fnal.fnal.gov; yossie@fnccf.bitnet What did the Caspian Sea? - Saki
paulr@syma.sussex.ac.uk (Paul T Russell) (12/11/90)
From article <1990Dec6.153124.840@hfnet.bt.co.uk>, by matyeo@hfnet.bt.co.uk (Mike Atyeo): > does anyone know of any XCMND or Mac add-on that allows it to understand > DTMF tones? (DTMF tones are the tones made by some phones when ringing > a number) I want to translate the tones to their corresponding numbers > for use in a Hypercard/Comms stack. Depends on your budget ;-) I would use an AudioMedia board from DigiDesign (16 bit stereo A-D and D-A with a DSP 56001 processor) and the 'DSP Designer' package from Zola technologies. This would let you design a set of filters which you could run on the AudioMedia in real-time, and which would make DTMF decoding a breeze. I doubt that you could do this with a MacRecorder or the built-in sound hardware on the new Macs (not in real-time, anyway, but I'd be happy to be proved wrong). //Paul PS. If you're happier building hardware than writing software then it's pretty easy to combine a DTMF decoder chip set with a UART to give you DTMF -> RS-232 which you can then read via the Mac serial port. -- Paul Russell, Department of Experimental Psychology University of Sussex, Falmer, Brighton BN1 9QG, England Janet: paulr@uk.ac.sussex.syma Nsfnet: paulr@syma.sussex.ac.uk Bitnet: paulr%sussex.syma@ukacrl.bitnet Usenet: ...ukc!syma!paulr