Go Back   Home > Forums > Source & Line > Digital Source

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 3rd February 2008, 07:16 PM   #1
diyAudio Member
Join Date: Nov 2006
Default How to Make Test Signals in WAV format

I would like to make or download a series of high quality test signals to use in my CD player or MP3 player for my guitar amp testing. This would include:

- 1Khz Sine
- log sweep from 50Hz to 10kHz
- white noise
- pink noise

Any suggestions on how I do this directly to WAV or mp3 format? Or it there a site these can be downloaded from?

  Reply With Quote
Old 3rd February 2008, 07:36 PM   #2
diyAudio Member
Join Date: Jan 2003
Location: Sweden


never tried them myself but looks ok.
  Reply With Quote
Old 3rd February 2008, 07:45 PM   #3
diyAudio Member
Zero Cool's Avatar
Join Date: Sep 2004
Location: MN
Soundforge is the best. the older 4.5 version is still what i use. newer versions take away a lot of what made Sf good in the first place.

I can make them and send them to you. how long do you want each file to be. what bit rate, stereo or mono, what level etc etc.

  Reply With Quote
Old 3rd February 2008, 09:27 PM   #4
diyAudio Member
Join Date: Nov 2006
Hey Zero - thanks for the offer!

Mind just sending me a 60 second 1kHz sine wave first? I have been having a hell of a time trying to find something that is clear of second and third harmonics - as this is something I actually try to create with the guitar amp.

My email is a8723 *at* cameronsoftware dot com


  Reply With Quote
Old 3rd February 2008, 09:52 PM   #5
diyAudio Member
Join Date: Mar 2007
Location: Canandaigua, NY USA
Another very useful tool, with waveform capabilities, is Visual Analyzer from Sillanumsoft.org, free for the download.
  Reply With Quote
Old 3rd February 2008, 11:17 PM   #6
diyAudio Member
MikeHunt79's Avatar
Join Date: Aug 2003
Location: Bristol, UK
I think Audacity can do it also, and it's free.
  Reply With Quote
Old 3rd February 2008, 11:57 PM   #7
jcx is online now jcx  United States
diyAudio Member
Join Date: Feb 2003
Location: ..
free SwCadIII: LtSpice simulator software can save any waveform in a sim as a .wav output, flexible sample rate, bit depth

LtSpice wav in/out example:

just read the help on the arbitray behavioral source BV and enter equation to define your waveform

CD requires 16 bit 44.1K, many DAP and computers will do 48K, better soundcards 96K, 192K 24 bits

getting a hi rez file into DVD-A for free isn't as simple as CD, there is an incomplete SourceForge project, I've used a shareware DVD burner but only for the 1 month free eval period
  Reply With Quote
Old 4th February 2008, 06:33 AM   #8
oshifis is offline oshifis  Hungary
diyAudio Member
Join Date: Mar 2004
Location: Budapest, Hungary
I created a test CD by manually editing the WAV files in a hex editor. You can download it from here:


The tracks are:

1. Pink noise 30'
2. cca 1kHz square 10'
3. cca 1 kHz sine 10'
4. cca 1kHz single sample positive spikes 1'
5. 22.05 kHz samples 1'
6. Slow triangle through all digital levels 3'
7. Sine L channel 0'30"
8. Sine R channel 0'30"
9. + sawtooth for absolute polarity 0'30"
10. - sawtooth 0'30"
11. Sweep 10Hz to 20 kHz 3'40"
12. Sine 0 dB 1'
13. Sine -12 dB 1'
14. ... 20 as above until -96 dB
21. 0000 samples 1'
22. 7FFF samples 1'
23. 8000 samples 1'
24. FFFF samples 1'

Total time: 73'40"
  Reply With Quote
Old 24th June 2010, 04:08 AM   #9
diyAudio Member
Jacques Merde's Avatar
Join Date: Oct 2009
[QUOTE=oshifis;1419056]I created a test CD by manually editing the WAV files in a hex editor. You can download it from here:

WOW! That's hardcore!

Personally, I use the audiofile library and write simple C programs to do that. I think audiofile is on SF, but it's available with most Linux and BSDs and so should be pretty easy to find.
"For every complex problem, there is a solution that is simple, neat, and wrong." -- H.L. Mencken
  Reply With Quote
Old 13th August 2010, 10:30 AM   #10
oshifis is offline oshifis  Hungary
diyAudio Member
Join Date: Mar 2004
Location: Budapest, Hungary
To be honest, I generated the Pink noise (Track 1 on my test CD) with a third party freeware. I forgot the name. All the other tracks I edited in XVI32 HEX editor. Now I want to replace the Pink noise track with a more controlled signal. It should be flat <10 Hz to 22.05 kHz, with a crest factor of 12, peak level 0 dB, preferably true random not PRBS. What is the best software or algorithm to generate such test signal?
  Reply With Quote


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
How do I make a terminated test lead? markzb Solid State 8 15th October 2008 11:22 PM
Routing I2S signals Predator864 Digital Source 13 18th March 2008 10:41 AM
JP2.0 Part IV A.K.A. first test photos don't make fun of my cardboard DIY_newbie Multi-Way 24 1st September 2005 05:05 AM
Make Your Own Test Cd!!!!!! OMNIFEX Multi-Way 6 7th April 2003 01:24 PM

New To Site? Need Help?

All times are GMT. The time now is 08:31 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2