<HTML> <HEAD> <TITLE>Re: Excel beeps</TITLE> </HEAD> <BODY> The program that Ric Brekne mentioned, called WaveGen, can do the multiple = sine waves at once. But it can't (apparently) do tenths-of-a-cycle per secon= d. So whereas the C3E3 major third should beat at 5.2 (not counting inharmon= icity), it can produce a 5.0. Ric's .wav files illustrate 1 bps through 10 b= ps, but they're all at 440 and 441, 440/442, etc through 440/450. I experime= nted today with making the beats sound more real by creating them with the f= requency of the 4th partial of the upper and the 5th partial of the lower, a= nd the wave is nice and accurate. Then I experimented with adding the fundam= ental as well ... sounded awful. But for now, I can report that this sharewa= re program is capable of doing what you are asking for, and creating nice .w= av files with two, three and possibly more sine waves at once. Stay tuned (s= o to speak)... .......... .  jason kanter . jkanter@rollingball.com= . jason.kanter@wamu.net .  manager . learning & performance development .  consumer loan servicing . washington mutual bank .  office 206 490 6708 . cell 425 830 1561 .  home (bellevue): 425 562 4127 . fax 425 562 4132 .  14847 ne 14th st . bellevue wa 98007 .  (orcas): 360 376 2799 . 136 perch tree lane . eastsound wa 98245<BR= > ............................... <BLOCKQUOTE> From: "Richard Moody" <remoody@midstatesd.net> Reply-To: Pianotech <pianotech@ptg.org> Date: Sat, 4 Jan 2003 22:45:54 -0600 To: "Pianotech" <pianotech@ptg.org> Subject: Re: Excel beeps </BLOCKQUOTE> <BLOCKQUOTE><TT>I have wondered if a data base can be used to call up two o= r four sounds at once.    If I remember right old BASIC used to hav= e four sounds. If there is a data base that allows sounds that would be a head start.  If there were a data base of sounds that would be even better.    If it is possible for a data base to call up 16 sine sou= nds at once I would be interested in that!!    For creating beat rates I don't know why it can't be don= e by using the actual frequencies.   Of course they would have to have= the right partials, ie , for 3rds each tone would have to have the 4th and 5th partial.    So the question returns to, if two pure sine sounds are = played together, will beats result?    Pure "sine sounds"=   means absence of upper partials. Or would the loudspeaker diaphragm or headphone speakers vibrate in partials also?    ---rm ----- Original Message ----- From: Bill Ballard <yardbird@vermontel.net> To: Pianotech <pianotech@ptg.org> Sent: Friday, January 03, 2003 12:07 AM Subject: Re: Excel beeps > At 9:04 PM -0800 1/2/03, Jason Kanter wrote: > >Please give it a try... > >........... > >..  jason kanter . jason.kanter@wamu.net . jkanter@rollingball.com > > > >>  At 4:06 PM -0800 1/1/03, Jason Kanter wrote: > >>  >Anyone know how to program Visual Basic in Excel to= produce x beeps > >>  >per second? > >> > >>  I could write it as a loop in my database. > >> > >>  Bill Ballard RPT > >>  NH Chapter, P.T.G. > >> > >>  "Trust me, you've got all the equipment, You just = need to read the manual" > >>       ...........Reese Withersp= oon in "Legally Blonde" > >>  +++++++++++++++++++++ > >> > > What it would involve is a unit of sound (.wav or .aaif) say 1/30 > long. Then set up a "counter" variable to cycle things throu= gh the > correct number of loops, and one for the number of bps desired (not > nec . a whole number). One you've set the number of bps you want t > hear, that deterimnes a timed loop, in which the period is the > inverse of the bps. Whatever the period of the beat rate (and that > could even be input as +/- ¢ with an anchor frequency), the time > consumed by the 0.033 second sine wave .wav  would remain constant. > For 2.5 pbs, it would be 8.25% of the 0.4 sec period. > > That's how I would do it. I have no idea whether the database app's > connection to the OS would have its own inefficiency. 'Puter > telephone dialing involves a delay of 4 sec between execution and the > internal modem dialing out. It's not just my database, it's the Palm > Desktop's phone dialer behaving that way too. > > Whether or not I could do it might or might not be useful to you. I'm > sure you don't have the Mac OS, and even if if polished up the > beat-rate generator real swell, it would still be just a database > file required the app to run it. The cross-platform version of this > database does exist, but the value of such a eat-rate generator would > probably be far less than the price to you of the database to run it. > (Although for $50, I could register a run-time file distributed only > by the database's web site.) > > I agree it would be a fun project. Say, you wouldn't need this this > to be learning arual tuning by any chance? <g> > > Mr. Bill Ballard RPT > NH Chapter, P.T.G. > > "I gotta go ta woik...." >      ...........Ian Shoales, Duck's Breath My= stery Theater > +++++++++++++++++++++ > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives _______________________________________________ pianotech list info: https://www.moypiano.com/resources/#archives </TT></BLOCKQUOTE><TT> </TT> </BODY> </HTML>