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test tones on CD?
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Old 14th December 2003, 05:57 PM   #1
millwood is offline millwood  United States
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Default test tones on CD?

I am interested in making a CD with various test tones, like sine signals at various levels and frequencies, different kinds of random noises, l/r channel sweeping tones, etc, and record it on CD.

Does anyone know where I can get such a beast or to make one?

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Old 14th December 2003, 06:05 PM   #2
Peter Daniel is offline Peter Daniel  Canada
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I got some interesting ones from Stereophile, Chesky and Denon.

If you promise that you won't be making anymore fun of my Egyptian maple case, I might send you some copies.
To order kits contact me through forum mail.
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Old 14th December 2003, 06:13 PM   #3
AuroraB is offline AuroraB  Norway
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There is one on the market called "Soundcheck" buy Alan Parsons.
Contains pink noises in varios forms, 1/3 octave bands, sweep tones etc. as well as instruments, voicres etc for test. Very good one...
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Old 14th December 2003, 06:23 PM   #4
richwalters is offline richwalters
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RCA (red seal) digital has one......"Extensive tests for audio equipment",
RD 70400......It also has a bar code number 0 035627 040023
My copy is some years old.

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Old 14th December 2003, 06:52 PM   #5
Da5id4Vz is offline Da5id4Vz  United States
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Default Bruel and Kjaer

I had a B&K microphone marketing disk that was just wonderful.

The 1st half was an eclectic sampling of music recorded with the microphone product.

The second half was all test tones. Lots of good tones at different reference levels, Full scale, -10, 15, -dB from full scale, sweeps and the such. The part I really liked was a selection of third octave filtered noise bursts. These were great to use with a simple SPL meter for checking frequency response.

Unfortunately I lent it, along with my SM-67 to a person who claims to have last both (pig-dog). Although the original disk was a freebee, I'd gladly pay to replace it, finding it has been the problem. (Has anyone seen it?)

I have Denon disk too. I had some problems with the referencing the full-scale tones and never really went back to it (likely my fault butÖ), except to listen to the Japanese description of compact disc history.
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Old 14th December 2003, 07:28 PM   #6
Steven is offline Steven  Netherlands
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I have used Stomper for creating all kind of tones and sounds. It's kind of free. I just checked and a new version has appeared, which I have not used. You can create probably all the test tones you want with this program: http://www.lysator.liu.se/~zap/stomper/index2.html
You can save the tones, sweeps, noise sounds and sequences as WAV files and collect them on CD if you want.

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Old 14th December 2003, 07:47 PM   #7
JensRasmussen is offline JensRasmussen  Denmark
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Default Testsignals


If anybody wants it, i can make a cd with what ever signals you like. Mathcad and matlab can export wave files so it's easy to make the signals you want.

examples could be:

0 dB sinewaves
- xx dB sinewaves

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Old 15th December 2003, 05:48 AM   #8
ashok is offline ashok
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test tones on CD?
Default Making test cd's.

Hi All,
Those who can't make it themselves should take up Jens offer.
The others who can , could download the free version of Cool Edit and make the test signals themselves and burn it to CD. It's easy and accurate.
I am not sure if you can make square waves with Cool Edit.
Jens can you do this for me? Either post it or email me a wave file with say 1 second of a 1Khz square wave . I can extend it with an editor here.
You could email it to me at amadhavan(at)eth.net
You will have to edit out the (at) and put in the @ of course.
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Old 15th December 2003, 06:54 AM   #9
phase_accurate is online now phase_accurate
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A quick and easy one is:



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Old 15th December 2003, 08:12 AM   #10
EDUM is offline EDUM  Netherlands
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If you want to get the best results try this:
Philips SBC429 Audio signals disc (4822 397 30184). It is a computer generated CD with o.a. frequency sweeps, testtones for distortion measurements, intermodulation, signal to noise measurements etc.

If you want to measure low levels of distortion you need to get rid of the foldback signal residue above 20 kHz. There is also a passive 8th order Cauer filter to this (4822 395 30204). I do not know if it is still available but is was expensive.


The vast number of parameters involved in human hearing make imperfect designs certain.
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