My software for calculation Thiele/Small for unknown speakers

DigiSoft · 04:49 PM

SmartSpeakerCalculator for Unknown speakers

This is the software I build today to find the Thiele / Small parameters of unknown speakers. This method is very accurate if it is made in perfect conditions and very precise equipment. It is very useful when you have speaker without parameters and you want to make box for it.

Please post your comments and suggestions. In the next version I'll include Vas calculations.

Enjoy and post your comments.

DigiSoft · 21st March 2010, 05:21 PM

Ok So I've measured my 12" Bass using my software and I got Qts of 3,5857

Is this really bad bass?

event horizon · 21st March 2010, 05:31 PM

Quote:

Originally Posted by DigiSoft

Ok So I've measured my 12" Bass using my software and I got Qts of 3,5857

Is this really bad bass?

Rofl, a Qts of 3 would be bad enough... 0.3 would be decent driver Q, are you trying to say you measured a Q of over three thousand or just over 3?

You need to operate in a dead quiet environment when testing driver Q, the driver needs to be in free air & suspended vertically as it would be mounted in the front of an enclosure.

I test in virtually the same way, except i don't use a power amplifier, just the function generator output (50 ohm) & the same 1% 10 ohm resistor & multimeter. You need to operate at very low current as well..

DigiSoft · 05:45 PM

Well my speaker was at floor. Could it be the problem?
Can someone measure speaker with this software that has already manufacture Qts and tell the results?

The Q for my speaker was 3 :S not over 3 thousands

cuibono · 21st March 2010, 05:43 PM

Does you software measure Vas?

DigiSoft · 21st March 2010, 05:49 PM

Quote:

Originally Posted by cuibono

Does you software measure Vas?

It is not measuring Vas for now but I plan to implement that in the new version I am making.

richie00boy · 21st March 2010, 06:00 PM

Perhaps you should credit Rod Elliot's ESP site where you stole your diagrams and method from.

DigiSoft · 06:40 PM

Quote:

Originally Posted by richie00boy

Perhaps you should credit Rod Elliot's ESP site where you stole your diagrams and method from.

Yes I "stoll" them and?

This diagram is all over the internet. Just search and you'll see. If you have something smart to say then ok if not then... I won't say it here.

Ant this software I gave it for free. I am not selling it.

PeteMcK · 21st March 2010, 10:47 PM

re:'This diagram is all over the internet' - doesn't mean it isn't copyright, & it doesn't mean that you shouldn't give people their due credit for previous work....

Inductor · 22nd March 2010, 12:09 AM

I understand when people get an idea (and give the right credit, like when I did the excel page for the best port/dimension in a system) and that might even take them in a different direction. Meaning that the right track would be developing it into a new idea on their own. There's so many new and different software that nobody did yet come to terms with to develop (like a new software to choose the best driver and that would take only a few hours).

21st March 2010, 05:41 PM	#4
DigiSoft diyAudio Member Join Date: Mar 2010	Well my speaker was at floor. Could it be the problem? Can someone measure speaker with this software that has already manufacture Qts and tell the results? The Q for my speaker was 3 :S not over 3 thousands Last edited by DigiSoft; 21st March 2010 at 05:45 PM.

21st March 2010, 05:43 PM	#5
cuibono diyAudio Member Join Date: May 2006 Location: City of Angles	Does you software measure Vas? __________________ double complete rainbow all the way!!

21st March 2010, 06:00 PM	#7
richie00boy Did it Himself diyAudio Member Join Date: Nov 2003 Location: Gloucestershire, England, UK	Perhaps you should credit Rod Elliot's ESP site where you stole your diagrams and method from. __________________ www.readresearch.co.uk my website for UK diy audio people - designs, PCBs, kits and more

21st March 2010, 10:47 PM	#9
PeteMcK diyAudio Member Join Date: Feb 2002 Location: Sydney	re:'This diagram is all over the internet' - doesn't mean it isn't copyright, & it doesn't mean that you shouldn't give people their due credit for previous work.... __________________ ‘today… there lives alongside the twentieth century the tenth or thirteenth. A hundred million people use electricity and still believe in the magic power of signs and exorcisms” Trotsky

22nd March 2010, 12:09 AM	#10
Inductor diyAudio Member Join Date: Feb 2006 Location: Cascais	I understand when people get an idea (and give the right credit, like when I did the excel page for the best port/dimension in a system) and that might even take them in a different direction. Meaning that the right track would be developing it into a new idea on their own. There's so many new and different software that nobody did yet come to terms with to develop (like a new software to choose the best driver and that would take only a few hours). __________________ What the Hell is this crap?! It's not crap, it's muzak.


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21st March 2010, 05:21 PM	#2
DigiSoft diyAudio Member Join Date: Mar 2010	Ok So I've measured my 12" Bass using my software and I got Qts of 3,5857 Is this really bad bass?

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