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Article #11523Software for touchtone generation; will it work?
From: FELSON_ADJ
Date: Tue, 10 Nov 1992 17:47
Date: Tue, 10 Nov 1992 17:47
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892 bytes
Can a squarewave output be used to reliable generate touch tones? I'm planning on writing some machine code software for an HP48 calculator that would do the following: scan two sine wave tables ( or use two pointers into a single table ) add the two together, and turn the speaker on whenever the sine is positive. This would be basically a cliped version of the dual done MTMF signal. Anyone know if this will be too distorted for the phone company to accept?
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Path: arc1-ca.pugleaf.net!sparky!uunet!destroyer!sol.ctr.columbia.edu!usc!cs.utexas.edu!gateway From: FELSON_ADJ@CCSUA.CTSTATEU.EDU Newsgroups: sci.electronics Subject: Software for touchtone generation; will it work? Date: 10 Nov 1992 11:47:54 -0600 Organization: UTexas Mail-to-News Gateway Lines: 9 Sender: daemon@cs.utexas.edu Message-ID: <921110124732.2381ce70@CCSUA.CTSTATEU.EDU> NNTP-Posting-Host: cs.utexas.edu