<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; = charset=windows-1252"> <META content="MSHTML 6.00.2716.2200" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV>Terry,</DIV> <DIV> </DIV> <DIV>Sine wave, square wave and sawtooth wave. = Bell, Brass and = string. then mix and match.</DIV> <DIV> </DIV> <DIV> </DIV> <DIV>Tony Caught<BR>Darwin<BR>Australia<BR><A href="mailto:caute@optusnet.com.au">caute@optusnet.com.au</A><BR></DIV>= <BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: = black"><B>From:</B> <A title=mfarrel2@tampabay.rr.com href="mailto:mfarrel2@tampabay.rr.com">Farrell</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A = title=pianotech@ptg.org href="mailto:pianotech@ptg.org">pianotech@ptg.org</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, August 02, 2002 = 10:40 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Musical = Soundwaves</DIV> <DIV><BR></DIV> <DIV>Why does a flute sound like a flute? Why does an obo sound like = an obo? Why does a guitar sound like a guitar? And last, but certainly not = least, why does a piano sound like a piano? <BR><BR>Does anyone have a simplistic = explanation for what is the cause of unique sounds/tones among various = instruments? If you play A4 at a pitch of 440 Hz on any instument, you = will hear the pitch of 400 Hz. But they will all sound different. So I = guess they all do something different to the soundwave that reaches your ear. = What is that difference? How does a speaker reproduce these differences of = they only move in and out?<BR><BR>Thanks for any thoughts.<BR><BR>Terry Farrell<BR><BR><BR>  <BR></DIV> <DIV> </DIV> <DIV><BR>---<BR>Outgoing mail is certified Virus Free.<BR>Checked by = AVG anti-virus system (<A = href="http://www.grisoft.com">http://www.grisoft.com</A>).<BR>Version: = 6.0.373 / Virus Database: 208 - Release Date: = 01/07/02</DIV></BLOCKQUOTE></BODY></HTML>