Audio Sweep Generator

G

Graeme Dennes

Guest
I'm looking to buy or build a low-cost audio frequency range sweep
generator. As a minimum, I need to be able to set the sweep end frequencies,
the sweep rate, and the sweep direction independently, and have sine and
pulse (variable duty cycle) outputs.

Any ideas or advice appreciated.

Graeme Dennes
 
Hi, I have some Texscan SG-677/U sweep generators if they might
interest you. If so, make a offer.

Mikel Giles

"Graeme Dennes" <gdennes@ihug.com.au> wrote in message news:<bv6thc$3c9$1@lust.ihug.co.nz>...
I'm looking to buy or build a low-cost audio frequency range sweep
generator. As a minimum, I need to be able to set the sweep end frequencies,
the sweep rate, and the sweep direction independently, and have sine and
pulse (variable duty cycle) outputs.

Any ideas or advice appreciated.

Graeme Dennes
Click to expand...
 
Hi Mikel

Thanks for the offer.

My searching indicates that the SG-677/U is a 0.5 to 1200 MHz sweep
generator, whereas my need is for an audio frequency sweep generator,
covering say from 10Hz to 30 KHz. or thereabouts.

Graeme


"Mikel Giles" wrote in message
news:51d5c4f4.0401272030.1870489c@posting.google.com...
Hi, I have some Texscan SG-677/U sweep generators if they might
interest you. If so, make a offer.

Mikel Giles

"Graeme Dennes" wrote in message news:<bv6thc$3c9$1@lust.ihug.co.nz>...
I'm looking to buy or build a low-cost audio frequency range sweep
generator. As a minimum, I need to be able to set the sweep end
frequencies,
the sweep rate, and the sweep direction independently, and have sine and
pulse (variable duty cycle) outputs.

Any ideas or advice appreciated.

Graeme Dennes
Click to expand...
 
"Graeme Dennes" <gdennes@ihug.com.au> wrote in message
news:<bv6thc$3c9$1@lust.ihug.co.nz>...
I'm looking to buy or build a low-cost audio frequency range sweep
generator. As a minimum, I need to be able to set the sweep end
frequencies,
the sweep rate, and the sweep direction independently, and have sine and
pulse (variable duty cycle) outputs.
Click to expand...
The best way to do it these days is with a computer sound card and software,
if you only need audio frequencies.

TonyP.
 
On Wed, 28 Jan 2004 10:51:12 +1100, "Graeme Dennes"
<gdennes@ihug.com.au> wrote:

I'm looking to buy or build a low-cost audio frequency range sweep
generator. As a minimum, I need to be able to set the sweep end frequencies,
the sweep rate, and the sweep direction independently, and have sine and
pulse (variable duty cycle) outputs.

Any ideas or advice appreciated.

Graeme Dennes
Click to expand...

Google is your friend.

Do a web search via google.com or other search engine and you will
find many. Hardware or software, free or otherwise.

heres a link with a lot of SW based audio stuff:
http://www.dazyweblabs.com/index.html
 
"Herbert West" <reanimator@miskatonic.edu> wrote in message
news:0cri109off8r7oj933vf3fudu1bk4a7it3@4ax.com...
On Wed, 28 Jan 2004 10:51:12 +1100, "Graeme Dennes"
gdennes@ihug.com.au> wrote:

I'm looking to buy or build a low-cost audio frequency range sweep
generator. As a minimum, I need to be able to set the sweep end
frequencies,
the sweep rate, and the sweep direction independently, and have sine and
pulse (variable duty cycle) outputs.

Any ideas or advice appreciated.

Graeme Dennes



Google is your friend.

Do a web search via google.com or other search engine and you will
find many. Hardware or software, free or otherwise.

heres a link with a lot of SW based audio stuff:
http://www.dazyweblabs.com/index.html
Click to expand...

Thanks Herbert. I'll try as you suggest. I don't believe the sound card will
do pulsed waveforms, so I'll look for a hardware solution via a search.

Graeme
 
"Graeme Dennes" <gdennes@ihug.com.au> wrote in message
news:bvbvki$da7$1@lust.ihug.co.nz...
Thanks Herbert. I'll try as you suggest. I don't believe the sound card
will
do pulsed waveforms, so I'll look for a hardware solution via a search.
Click to expand...
Why don't you believe that the soundcard can do ANY waveforms within it's
frequency range and bit resolution?
You said you were after audio range only, but maybe you expect rise times
far beyond the audio range?

TonyP.
 
There is some PC software that does this using the sound card. It's
pretty basic, but it depends on what you wanted it for. For example,
there is a public domain one called SweepGen by David Taylor.

Graeme Dennes wrote:
Hi Mikel

Thanks for the offer.

My searching indicates that the SG-677/U is a 0.5 to 1200 MHz sweep
generator, whereas my need is for an audio frequency sweep generator,
covering say from 10Hz to 30 KHz. or thereabouts.

Graeme


"Mikel Giles" wrote in message
news:51d5c4f4.0401272030.1870489c@posting.google.com...

Hi, I have some Texscan SG-677/U sweep generators if they might
interest you. If so, make a offer.

Mikel Giles

"Graeme Dennes" wrote in message news:<bv6thc$3c9$1@lust.ihug.co.nz>...

I'm looking to buy or build a low-cost audio frequency range sweep
generator. As a minimum, I need to be able to set the sweep end

frequencies,

the sweep rate, and the sweep direction independently, and have sine and
pulse (variable duty cycle) outputs.

Any ideas or advice appreciated.

Graeme Dennes
Click to expand...
 
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