Go Back   Home > Forums > Design & Build > Software Tools

Software Tools SPICE, PCB CAD, speaker design and measurement software, calculators

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
Reply
 
Thread Tools Search this Thread
Old 19th March 2012, 04:07 AM   #1
scott17 is offline scott17  United States
diyAudio Member
 
scott17's Avatar
 
Join Date: Aug 2009
Location: JFK
Default tone generator software

Anyone have any experience with a good software application to generate clean square waves? I have tried Visual Analyser however the square wave generated by it is not very good.

Anyone have experience with NCH Tone Generator software?
  Reply With Quote
Old 19th March 2012, 04:11 AM   #2
diyAudio Member
 
Join Date: Nov 2009
Location: Los Angeles
Quote:
Originally Posted by scitizen17 View Post
Anyone have any experience with a good software application to generate clean square waves? I have tried Visual Analyser however the square wave generated by it is not very good.

Anyone have experience with NCH Tone Generator software?
Define 'not very good'. Are you seeing symmetrical overshoots / ringing? That would be normal for a bandwidth limited system. A photo would help a lot.

  Reply With Quote
Old 19th March 2012, 04:18 AM   #3
scott17 is offline scott17  United States
diyAudio Member
 
scott17's Avatar
 
Join Date: Aug 2009
Location: JFK
Quote:
Originally Posted by stratus46 View Post
Define 'not very good'. Are you seeing symmetrical overshoots / ringing? That would be normal for a bandwidth limited system. A photo would help a lot.

By "not very good", referring to the Visual Analyser software, I mean extreme ringing across the entire top and bottom of the waveform, no matter what the frequency.
  Reply With Quote
Old 19th March 2012, 08:54 AM   #4
diyAudio Member
 
Join Date: Nov 2009
Location: Los Angeles
Quote:
Originally Posted by scitizen17 View Post
By "not very good", referring to the Visual Analyser software, I mean extreme ringing across the entire top and bottom of the waveform, no matter what the frequency.
I don't know about your software as I use Adobe Audition 3.0 but the point is, with a limited bandwidth system you will have ringing. The problem is the equation of a squarewave has components out to infinity but in your sampled digital world you only use a handful of the components. I got the same result as you with a 1 KHz square using a 44100 sample rate. It looks much better with a sample rate of 192000. BTW if you look up old reviews of CD players the 1 KHz square response has symmetrical ringing.

If you need a ring free square you could buy a sine / square audio generator or run your computer output into a comparator to clean up the edges. you'd still need line drive and level set stages after the comparator.

  Reply With Quote
Old 19th March 2012, 08:58 AM   #5
DRONE7 is offline DRONE7  New Zealand
diyAudio Member
 
Join Date: Aug 2008
There is a nice tone generator here...
* JSigGen
It runs as a Java applet so will work on Win/Lin/and Mac and is careware.
(check the application author's careware definition page but the app is free to download and use and asks you to "pay' for it by caring more about your fellow humans- a lovely way to promote a better world for all.

* The CareWare Idea

Last edited by DRONE7; 19th March 2012 at 09:20 AM.
  Reply With Quote
Old 19th March 2012, 10:32 AM   #6
scott17 is offline scott17  United States
diyAudio Member
 
scott17's Avatar
 
Join Date: Aug 2009
Location: JFK
stratus46
Thanks for the info. I have an HP3311A but it has problems at the moment.

DRONE7
I'll check out the JSigGen, thanks.
  Reply With Quote
Old 20th March 2012, 12:03 AM   #7
diyAudio Member
 
Join Date: Nov 2009
Location: Los Angeles
Quote:
Originally Posted by DRONE7 View Post
There is a nice tone generator here...
* JSigGen
It runs as a Java applet so will work on Win/Lin/and Mac and is careware.
(check the application author's careware definition page but the app is free to download and use and asks you to "pay' for it by caring more about your fellow humans- a lovely way to promote a better world for all.

* The CareWare Idea
But it will have the same problem scitizen17 is having. The software isn't the problem. The re-construction filter is the limiting factor and there is nothing to be done about it except to use a different signal generator.

  Reply With Quote
Old 20th March 2012, 07:54 AM   #8
DRONE7 is offline DRONE7  New Zealand
diyAudio Member
 
Join Date: Aug 2008
Yes, thank you.
I was following up on your comment...
Quote:
It looks much better with a sample rate of 192000.
and as * JSigGen is selectable for that thought that it may be an improvement on the o/p's current software.
(and unlike Adobe Audition 3.0 it is free so the o/p would lose nothing by trialling it..

best regards, Bob
  Reply With Quote
Old 26th March 2012, 10:55 AM   #9
diyAudio Member
 
Join Date: Mar 2012
Default tone generator software

Hello Friends,
For generating arbitrary tones? No. There is a beep [doc.qt.nokia.com] function in QApplication that will play your system beep. But not a tone generator in the “play simple tunes” sense.
There are various multimedia APIs in Qt, but primarily are concerned with playback of media files and that sort of thing.
Thanks


Circuit Design Program
FPGA Implementation
  Reply With Quote
Old 26th March 2012, 12:01 PM   #10
Pano is offline Pano  United States
diyAudio Moderator
 
Pano's Avatar
 
Join Date: Oct 2004
Location: Milliways
Blog Entries: 4
I used the NHC tone gen many years ago, liked it fine. But now I stay FAR away from their stuff. Anything they make installs tons of bloatware, adware and other crap. Beware.

Audacity is free (get the current Beta) and will generate tones. Or the trial version of ARTA, or Goldwave (not free, but long trial). I think even WinISD has a tone generator.
__________________
Take the Speaker Voltage Test!
  Reply With Quote

Reply


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
Tone generator for Bias setting on tape decks df_genius Analogue Source 14 23rd December 2011 11:44 PM
Adjustable octave warble tone generator percy Everything Else 8 3rd December 2010 04:00 PM
Tone generator output Voltage for amplifier measurement? TheDIYer Equipment & Tools 2 28th June 2010 09:44 AM
Tone Generator - Multiple Tones and Variable Amplitude percy Equipment & Tools 15 20th December 2007 02:17 PM


New To Site? Need Help?

All times are GMT. The time now is 01:29 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