How to generate a test wave with software?

I need to generate a sound signal to test a microphone. I think
any wave would do i.e. pure sine / square / or anything else.
I was just thinking that instead of building a circuit to do this
I could save some time if I can create a sound with my pc
sound card. Is there any software that can do this?
Tia

 

[Bob Masta]

On Tue, 5 Aug 2003 13:22:14 +0000 (UTC), <beginner@btopenworld.com>
wrote:

I need to generate a sound signal to test a microphone. I think
any wave would do i.e. pure sine / square / or anything else.
I was just thinking that instead of building a circuit to do this
I could save some time if I can create a sound with my pc
sound card. Is there any software that can do this?
Tia

The signal generator that is part of my Daqarta shareware
package can create a huge variety of signals, including
noise, and can apply various sorts of modulation. The
current version is real-mode DOS only, so it won't work
with Windows versions later than 9x. And it only works
with sound cards or boards I've written a custom driver
for, which pretty much means ISA-bus Sound Blasters.
These use the included SB16.ADC driver.

Or, with no sound card at all you can create an 8-bit
ladder DAC with a handful of resistors on your printer
port, using the LPTX driver instead of SB16. 8-bit
sound is about equivalent to what you would get from
any lab-type function generator, in terms of distortion.

The Windows version of Daqarta is in development.
The signal generator portion is in beta-test, and will be
released early as a stand-alone. I'll announce it
here when released, probably in a month or so.



Bob Masta
dqatechATdaqartaDOTcom

D A Q A R T A
Data AcQuisition And Real-Time Analysis
Shareware from Interstellar Research
www.daqarta.com

 

Or, with no sound card at all you can create an 8-bit
ladder DAC with a handful of resistors on your printer
port, using the LPTX driver instead of SB16. 8-bit
sound is about equivalent to what you would get from
any lab-type function generator, in terms of distortion.

Thanks to all, I found that SigJenny is very suitable.
B.T.W. since you have mantioned the parallel port,
I do have one question: Where can I get the pins layout
of this port, including how to indentify pin 1. Then, which
pins are the ones I can use to output a "0" or a "1" and
which pins do I use for input. Then, which assembly
command to use to output a "1" or a "0" to a pin
(I think it's OUT 378 but was is the exact syntax)
Thanks.

 

[st]

On Wed, 6 Aug 2003 16:11:57 +0000 (UTC), <beginner@btopenworld.com> wrote:

Or, with no sound card at all you can create an 8-bit
ladder DAC with a handful of resistors on your printer
port, using the LPTX driver instead of SB16. 8-bit
sound is about equivalent to what you would get from
any lab-type function generator, in terms of distortion.

Thanks to all, I found that SigJenny is very suitable.
B.T.W. since you have mantioned the parallel port,
I do have one question: Where can I get the pins layout
of this port, including how to indentify pin 1. Then, which
pins are the ones I can use to output a "0" or a "1" and
which pins do I use for input. Then, which assembly
command to use to output a "1" or a "0" to a pin
(I think it's OUT 378 but was is the exact syntax)
Thanks.

www.hardwarebook.net has all the connectors pinouts and cables/adapters.

may also use WAVEGEN for windows to generate your signals (works with xp -
some other tools don't)

st

--
Using M2, Opera's revolutionary e-mail client: http://www.opera.com/m2/

 

www.hardwarebook.net has all the connectors pinouts and cables/adapters.

This is actually what I wanted, so thanks a lot!!

may also use WAVEGEN for windows to generate your signals (works with xp -
some other tools don't)

 

[R. Steve Walz]

beginner@btopenworld.com wrote:

Or, with no sound card at all you can create an 8-bit
ladder DAC with a handful of resistors on your printer
port, using the LPTX driver instead of SB16. 8-bit
sound is about equivalent to what you would get from
any lab-type function generator, in terms of distortion.

Thanks to all, I found that SigJenny is very suitable.
B.T.W. since you have mantioned the parallel port,
I do have one question: Where can I get the pins layout
of this port, including how to indentify pin 1. Then, which
pins are the ones I can use to output a "0" or a "1" and
which pins do I use for input. Then, which assembly
command to use to output a "1" or a "0" to a pin
(I think it's OUT 378 but was is the exact syntax)
Thanks.
-----------------

ftp://ftp.armory.com/pub/user/rstevew/LPT/zha96lpt.faq
ftp://ftp.armory.com/pub/user/rstevew/LPT/tomlpt.faq
ftp://ftp.armory.com/pub/user/rstevew/LPT/chrislpt.faq
ftp://ftp.armory.com/pub/user/rstevew/LPT/kris7lpt.faq
http://www.armory.com/~rstevew/Public/LPT/parallel.gif
http://www.armory.com/~rstevew/Public/LPT/printerport.jpg
http://www.armory.com/~rstevew/Public/LPT/LPTskmtc_wid.html

http://www.beyondlogic.org
http://www.beyondlogic.org/spp/parallel.htm

http://www.fapo.com/1284int.htm

-Steve
--
-Steve Walz rstevew@armory.com ftp://ftp.armory.com/pub/user/rstevew
Electronics Site!! 1000's of Files and Dirs!! With Schematics Galore!!
http://www.armory.com/~rstevew or http://www.armory.com/~rstevew/Public