Speaker Workshop calibration broblem - Page 2 - diyAudio
Go Back   Home > Forums > Loudspeakers > Multi-Way

Multi-Way Conventional loudspeakers with crossovers

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 9th June 2009, 07:08 PM   #11
diyAudio Member
 
Patrick Bateman's Avatar
 
Join Date: Oct 2006
Location: San Diego
It took me a few hours to build the Wallin Jig for Speaker Workship, and I wasted a few hours learning the program. I'd guess a total of 20 hours or so. After all that, I found that I spent 30-60 minutes calibrating things EVERY time I wanted to do a measurement.

The PE Woofer Tester III just *works*, and it's a hundred bucks.

I still have SW installed to do the occasional gated measurement, but Arta does that with a lot less hassle, and more consistent results.

I *do* like it's crossover program though, it does great simulations and it's easy to use.

For everything else, I just use Arta and WT3, it's waaaaaaaaaaay less hassle.
  Reply With Quote
Old 9th June 2009, 07:38 PM   #12
diyAudio Member
 
Join Date: Apr 2009
Send a message via MSN to Mike-Toronto
Thanks for the input.

I just took a look at that thing and what can I say. That looks fantastic. Now all I need is an extra hundred bucks
  Reply With Quote
Old 9th June 2009, 10:43 PM   #13
diyAudio Member
 
Patrick Bateman's Avatar
 
Join Date: Oct 2006
Location: San Diego
Time is money!

Anyone who builds speakers should get one, it's amazing.
  Reply With Quote
Old 9th June 2009, 11:59 PM   #14
Ron E is offline Ron E  United States
diyAudio Member
 
Ron E's Avatar
 
Join Date: Jun 2002
Location: USA, MN
Well, you seem to have negative DC offset and negative clipping. That could be part of your problem? Do you get this with an external amp, or just with the card? If you clip with the test signals, results are gibberish. Even with an el cheapo onboard card, I got measurements and symmetrical waveforms, even if they were nearly unusable due to limited LF S/N. Your jig looks OK, but it has been a while. How about an impedance measurement picture, including FFT's (the measurement.in.l and r, especially)

http://mysite.verizon.net/tammie_eri...level_set.html note his comments about clipping...

Praxis has a demo that measures T/S - see if you can get that to work.
__________________
Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works. --Carl Sagan
Armaments, universal debt, and planned obsolescence--those are the three pillars of Western prosperity. Aldous Huxley
  Reply With Quote
Old 10th June 2009, 07:12 PM   #15
diyAudio Member
 
Join Date: Apr 2009
Send a message via MSN to Mike-Toronto
I will lower the gain and see if there is any improvement. If not then I am just going to go with the numbers that I got with my sine wave and multimeter. I have a couple of very good quality audio interfaces but I am not eager to use them for this.

I would also like to add that I just noticed that I have a spelling mistake in my thread title
  Reply With Quote
Old 10th June 2009, 10:25 PM   #16
Ron E is offline Ron E  United States
diyAudio Member
 
Ron E's Avatar
 
Join Date: Jun 2002
Location: USA, MN
Houston, we have a broblem
__________________
Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works. --Carl Sagan
Armaments, universal debt, and planned obsolescence--those are the three pillars of Western prosperity. Aldous Huxley
  Reply With Quote
Old 10th June 2009, 10:32 PM   #17
Ron E is offline Ron E  United States
diyAudio Member
 
Ron E's Avatar
 
Join Date: Jun 2002
Location: USA, MN
The DC Offset is strange. Not sure why you would be getting that. See if you can find a configuration to get rid of that. You don't really need an external amp in most cases, so try without (or with if you aren't using one now) and see if it goes away.
__________________
Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works. --Carl Sagan
Armaments, universal debt, and planned obsolescence--those are the three pillars of Western prosperity. Aldous Huxley
  Reply With Quote
Old 6th July 2009, 06:41 PM   #18
diyAudio Member
 
Join Date: Apr 2009
Send a message via MSN to Mike-Toronto
I have backed off on getting this setup working. At some point I will end up buying PE Woofer Tester III. I simply do not have the time to spare at the moment. For now I am using a couple hacked up crossovers to get me somewhat close. Ok for now, but no where near where I want to get to.
  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
Using Yamaha receiver calibration microphone for speaker testing? camshaft Multi-Way 0 25th March 2008 04:07 PM
Speaker Workshop MMadrid Multi-Way 0 25th June 2006 07:49 AM
Speaker Workshop, help please Grahamt Multi-Way 5 10th March 2005 11:48 AM
Speaker workshop Ilianh Multi-Way 2 10th January 2003 09:11 PM


New To Site? Need Help?

All times are GMT. The time now is 12:07 AM.


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