View Full Version : How to generate sound
<jabberwocky><div class="vbmenu_control"><a href="jabberwocky:;" onClick="newWindow=window.open('','usenetCode','toolbar=no, location=no,scrollbars=yes,resizable=yes,status=no ,width=650,height=400'); newWindow.document.write('<HTML><HEAD><TITLE>Usenet ASCII</TITLE></HEAD><BODY topmargin=0 leftmargin=0 BGCOLOR=#F1F1F1><table border=0 width=625><td bgcolor=midnightblue><font color=#F1F1F1>This Usenet message\'s original ASCII form: </font></td></tr><tr><td width=449><br><br><font face=courier><UL><PRE>I would like to conduct some experiments with sound waves. I would\nlike to know if any of you know how to generate sound waves with\nspecific wavelength, amplitude and intervals. It would be preferable\nif the device is AS CHEAP as possible.\n\nThanks!\n\n</UL></PRE></font></td></tr></table></BODY><HTML>');"> <IMG SRC=/images/buttons/ip.gif BORDER=0 ALIGN=CENTER ALT="View this Usenet post in original ASCII form"> View this Usenet post in original ASCII form </a></div><P></jabberwocky>I would like to conduct some experiments with sound waves. I would
like to know if any of you know how to generate sound waves with
specific wavelength, amplitude and intervals. It would be preferable
if the device is AS CHEAP as possible.
Thanks!
FrediFizzx
Jun2-04, 03:56 AM
<jabberwocky><div class="vbmenu_control"><a href="jabberwocky:;" onClick="newWindow=window.open('','usenetCode','toolbar=no, location=no,scrollbars=yes,resizable=yes,status=no ,width=650,height=400'); newWindow.document.write('<HTML><HEAD><TITLE>Usenet ASCII</TITLE></HEAD><BODY topmargin=0 leftmargin=0 BGCOLOR=#F1F1F1><table border=0 width=625><td bgcolor=midnightblue><font color=#F1F1F1>This Usenet message\'s original ASCII form: </font></td></tr><tr><td width=449><br><br><font face=courier><UL><PRE>\n"Rodolfo" <university@zhuam.com> wrote in message\nnews:fad08f54.0405311513.7bb09fb6@posting .google.com...\n| I would like to conduct some experiments with sound waves. I would\n| like to know if any of you know how to generate sound waves with\n| specific wavelength, amplitude and intervals. It would be preferable\n| if the device is AS CHEAP as possible.\n\nHow about a speaker, amplifier and some kind of audio signal generator? I\nsuppose you will need a calibrated microphone, preamp and scope to\naccoustically measure the sound waves for wavelength amplitude and\nintervals.\n\nFrediFizzx\n\n</UL></PRE></font></td></tr></table></BODY><HTML>');"> <IMG SRC=/images/buttons/ip.gif BORDER=0 ALIGN=CENTER ALT="View this Usenet post in original ASCII form"> View this Usenet post in original ASCII form </a></div><P></jabberwocky>"Rodolfo" <university@zhuam.com> wrote in message
news:fad08f54.0405311513.7bb09fb6@posting.google.c om...
| I would like to conduct some experiments with sound waves. I would
| like to know if any of you know how to generate sound waves with
| specific wavelength, amplitude and intervals. It would be preferable
| if the device is AS CHEAP as possible.
How about a speaker, amplifier and some kind of audio signal generator? I
suppose you will need a calibrated microphone, preamp and scope to
accoustically measure the sound waves for wavelength amplitude and
intervals.
FrediFizzx
Oliver Jennrich
Jun2-04, 03:56 AM
<jabberwocky><div class="vbmenu_control"><a href="jabberwocky:;" onClick="newWindow=window.open('','usenetCode','toolbar=no, location=no,scrollbars=yes,resizable=yes,status=no ,width=650,height=400'); newWindow.document.write('<HTML><HEAD><TITLE>Usenet ASCII</TITLE></HEAD><BODY topmargin=0 leftmargin=0 BGCOLOR=#F1F1F1><table border=0 width=625><td bgcolor=midnightblue><font color=#F1F1F1>This Usenet message\'s original ASCII form: </font></td></tr><tr><td width=449><br><br><font face=courier><UL><PRE>\n* Rodolfo writes:\n\n> I would like to conduct some experiments with sound waves. I would\n> like to know if any of you know how to generate sound waves with\n> specific wavelength, amplitude and intervals. It would be preferable\n> if the device is AS CHEAP as possible.\n\nHm. The generic device for that purpose would be a loudspeaker.\n\n--\nSpace - the final frontier\n</UL></PRE></font></td></tr></table></BODY><HTML>');"> <IMG SRC=/images/buttons/ip.gif BORDER=0 ALIGN=CENTER ALT="View this Usenet post in original ASCII form"> View this Usenet post in original ASCII form </a></div><P></jabberwocky>* Rodolfo writes:
> I would like to conduct some experiments with sound waves. I would
> like to know if any of you know how to generate sound waves with
> specific wavelength, amplitude and intervals. It would be preferable
> if the device is AS CHEAP as possible.
Hm. The generic device for that purpose would be a loudspeaker.
--
Space - the final frontier
<jabberwocky><div class="vbmenu_control"><a href="jabberwocky:;" onClick="newWindow=window.open('','usenetCode','toolbar=no, location=no,scrollbars=yes,resizable=yes,status=no ,width=650,height=400'); newWindow.document.write('<HTML><HEAD><TITLE>Usenet ASCII</TITLE></HEAD><BODY topmargin=0 leftmargin=0 BGCOLOR=#F1F1F1><table border=0 width=625><td bgcolor=midnightblue><font color=#F1F1F1>This Usenet message\'s original ASCII form: </font></td></tr><tr><td width=449><br><br><font face=courier><UL><PRE>\nA few seconds thought answers some of the questions:\n\nFrediFizzx <fredifizzx@hotmail.com> writes\n\n>How about a speaker,\n\nghettoblaster\n\n>amplifier\n\npretty well any ghettoblaster\n\n>and some kind of audio signal generator?\n\nsimple 555 timer chip and a handful of components.\n\n>I\n>suppose you will need a calibrated microphone, preamp and scope to\n>accoustically measure the sound waves for wavelength\n\nany guitar tuner (reed type if hard up)\n\n>amplitude and\n\nHmm, tricky....\n\n>intervals.\n\nsee guitar tuner....\n\nAlternatively, if mudanely, use the soundcard on any computer and find\nappropriate freeware. I believe these include spectrum analysers, scopes\nand much more. Usually quite fast analog to digital (and vice-versa)\nconverters; well, to 44kHz anyway.\n\n\nNB Much audio stuff is relative. That being so the need for absolute\namplitudes can often be sidestepped.\n\nIt is possible to buy soundtest CD\'s which can be used for quite a bit\nof extra calibration if needed. Also the jets, tanks and machine-guns\nfiring and steamtrains are great fun, particularly at high volume.\n<cough>\n\nAll resonances, non-linearity etc can be assigned to speakers and\nmicrophones.\n\nAlternatively look at the cheap offerings from picoscope.\n\n\n\n[Moderator\'s note: All further comments on the usage and availability\nof audio equipment should be taken to private email or to another newsgroup,\nunless there is a genuine physics question addressed. -usc]\n\n\n--\nOz\nThis post is worth absolutely nothing and is probably fallacious.\n\nBTOPENWORLD address about to cease. DEMON address no longer in use.\n>>Use oz@farmeroz.port995.com (whitelist check on first posting)<<\n</UL></PRE></font></td></tr></table></BODY><HTML>');"> <IMG SRC=/images/buttons/ip.gif BORDER=0 ALIGN=CENTER ALT="View this Usenet post in original ASCII form"> View this Usenet post in original ASCII form </a></div><P></jabberwocky>A few seconds thought answers some of the questions:
FrediFizzx <fredifizzx@hotmail.com> writes
>How about a speaker,
ghettoblaster
>amplifier
pretty well any ghettoblaster
>and some kind of audio signal generator?
simple 555 timer chip and a handful of components.
>I
>suppose you will need a calibrated microphone, preamp and scope to
>accoustically measure the sound waves for wavelength
any guitar tuner (reed type if hard up)
>amplitude and
Hmm, tricky....
>intervals.
see guitar tuner....
Alternatively, if mudanely, use the soundcard on any computer and find
appropriate freeware. I believe these include spectrum analysers, scopes
and much more. Usually quite fast analog to digital (and vice-versa)
converters; well, to 44kHz anyway.
NB Much audio stuff is relative. That being so the need for absolute
amplitudes can often be sidestepped.
It is possible to buy soundtest CD's which can be used for quite a bit
of extra calibration if needed. Also the jets, tanks and machine-guns
firing and steamtrains are great fun, particularly at high volume.
<cough>
All resonances, non-linearity etc can be assigned to speakers and
microphones.
Alternatively look at the cheap offerings from picoscope.
[Moderator's note: All further comments on the usage and availability
of audio equipment should be taken to private email or to another newsgroup,
unless there is a genuine physics question addressed. -usc]
--
Oz
This post is worth absolutely nothing and is probably fallacious.
BTOPENWORLD address about to cease. DEMON address no longer in use.
>>Use oz@farmeroz.port995.com (whitelist check on first posting)<<
Uncle Al
Jun4-04, 02:47 PM
<jabberwocky><div class="vbmenu_control"><a href="jabberwocky:;" onClick="newWindow=window.open('','usenetCode','toolbar=no, location=no,scrollbars=yes,resizable=yes,status=no ,width=650,height=400'); newWindow.document.write('<HTML><HEAD><TITLE>Usenet ASCII</TITLE></HEAD><BODY topmargin=0 leftmargin=0 BGCOLOR=#F1F1F1><table border=0 width=625><td bgcolor=midnightblue><font color=#F1F1F1>This Usenet message\'s original ASCII form: </font></td></tr><tr><td width=449><br><br><font face=courier><UL><PRE>Rodolfo wrote:\n>\n> I would like to conduct some experiments with sound waves. I would\n> like to know if any of you know how to generate sound waves with\n> specific wavelength, amplitude and intervals. It would be preferable\n> if the device is AS CHEAP as possible.\n\nWhat frequency window?\n\n1) Personal computer.\n2) Norton BEEP and a script file to play it, in DOS.\n3) Windows\' sound utilities, including the default sound recorder.\n4) Visit freeware sites,\n\nhttp://www.jumbo.com/\nhttp://shareware.cnet.com/\nhttp://www.download.com/\n\nTap the output from your PC speaker or jack into your sound card.\n\nFor ultrasonics, look into old "Scientific American" \'Amateur\nScientist\' for piezoelectrics and their drivers.\n\n--\nUncle Al\nhttp://www.mazepath.com/uncleal/qz.pdf\nhttp://www.mazepath.com/uncleal/eotvos.htm\n(The parity Eotvos experiment is queued)\n\n</UL></PRE></font></td></tr></table></BODY><HTML>');"> <IMG SRC=/images/buttons/ip.gif BORDER=0 ALIGN=CENTER ALT="View this Usenet post in original ASCII form"> View this Usenet post in original ASCII form </a></div><P></jabberwocky>Rodolfo wrote:
>
> I would like to conduct some experiments with sound waves. I would
> like to know if any of you know how to generate sound waves with
> specific wavelength, amplitude and intervals. It would be preferable
> if the device is AS CHEAP as possible.
What frequency window?
1) Personal computer.
2) Norton BEEP and a script file to play it, in DOS.
3) Windows' sound utilities, including the default sound recorder.
4) Visit freeware sites,
http://www.jumbo.com/
http://shareware.cnet.com/
http://www.download.com/
Tap the output from your PC speaker or jack into your sound card.
For ultrasonics, look into old "Scientific American" 'Amateur
Scientist' for piezoelectrics and their drivers.
--
Uncle Al
http://www.mazepath.com/uncleal/qz.pdf
http://www.mazepath.com/uncleal/eotvos.htm
(The parity Eotvos experiment is queued)
Joe Rongen
Jun4-04, 02:47 PM
<jabberwocky><div class="vbmenu_control"><a href="jabberwocky:;" onClick="newWindow=window.open('','usenetCode','toolbar=no, location=no,scrollbars=yes,resizable=yes,status=no ,width=650,height=400'); newWindow.document.write('<HTML><HEAD><TITLE>Usenet ASCII</TITLE></HEAD><BODY topmargin=0 leftmargin=0 BGCOLOR=#F1F1F1><table border=0 width=625><td bgcolor=midnightblue><font color=#F1F1F1>This Usenet message\'s original ASCII form: </font></td></tr><tr><td width=449><br><br><font face=courier><UL><PRE>"Rodolfo" <university@zhuam.com> wrote in message\nnews:fad08f54.0405311513.7bb09fb6@posting .google.com...\n> I would like to conduct some experiments with sound waves. I would\n> like to know if any of you know how to generate sound waves with\n> specific wavelength, amplitude and intervals. It would be preferable\n> if the device is AS CHEAP as possible.\n\nOne could use a simple integrated circuit like a 555, cost is about \\$0.75.\nThe 555 data sheet and other required information is available online.\n\nRegards Joe\n\n"I\'ve been working on inventing anti-gravity.\nSomething keeps holding the project down."\n\n\n\n\n\n---\nOutgoing mail is certified Virus Free.\nChecked by AVG anti-virus system (http://www.grisoft.com).\nVersion: 6.0.693 / Virus Database: 454 - Release Date: 5/31/04\n\n</UL></PRE></font></td></tr></table></BODY><HTML>');"> <IMG SRC=/images/buttons/ip.gif BORDER=0 ALIGN=CENTER ALT="View this Usenet post in original ASCII form"> View this Usenet post in original ASCII form </a></div><P></jabberwocky>"Rodolfo" <university@zhuam.com> wrote in message
news:fad08f54.0405311513.7bb09fb6@posting.google.c om...
> I would like to conduct some experiments with sound waves. I would
> like to know if any of you know how to generate sound waves with
> specific wavelength, amplitude and intervals. It would be preferable
> if the device is AS CHEAP as possible.
One could use a simple integrated circuit like a 555, cost is about $0.75.
The 555 data sheet and other required information is available online.
Regards Joe
"I've been working on inventing anti-gravity.
Something keeps holding the project down."
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6..693 / Virus Database: 454 - Release Date: 5/31/04
Michael Varney
Jun4-04, 02:48 PM
<jabberwocky><div class="vbmenu_control"><a href="jabberwocky:;" onClick="newWindow=window.open('','usenetCode','toolbar=no, location=no,scrollbars=yes,resizable=yes,status=no ,width=650,height=400'); newWindow.document.write('<HTML><HEAD><TITLE>Usenet ASCII</TITLE></HEAD><BODY topmargin=0 leftmargin=0 BGCOLOR=#F1F1F1><table border=0 width=625><td bgcolor=midnightblue><font color=#F1F1F1>This Usenet message\'s original ASCII form: </font></td></tr><tr><td width=449><br><br><font face=courier><UL><PRE>"Rodolfo" <university@zhuam.com> wrote in message\nnews:fad08f54.0405311513.7bb09fb6@posting .google.com...\n> I would like to conduct some experiments with sound waves. I would\n> like to know if any of you know how to generate sound waves with\n> specific wavelength, amplitude and intervals. It would be preferable\n> if the device is AS CHEAP as possible.\n\nYou have a computer, and perhaps you have a sound card.\nThere are several free software programs that allow you to generate various\ntones.\nYou can output through a speaker.\n\n</UL></PRE></font></td></tr></table></BODY><HTML>');"> <IMG SRC=/images/buttons/ip.gif BORDER=0 ALIGN=CENTER ALT="View this Usenet post in original ASCII form"> View this Usenet post in original ASCII form </a></div><P></jabberwocky>"Rodolfo" <university@zhuam.com> wrote in message
news:fad08f54.0405311513.7bb09fb6@posting.google.c om...
> I would like to conduct some experiments with sound waves. I would
> like to know if any of you know how to generate sound waves with
> specific wavelength, amplitude and intervals. It would be preferable
> if the device is AS CHEAP as possible.
You have a computer, and perhaps you have a sound card.
There are several free software programs that allow you to generate various
tones.
You can output through a speaker.
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