My software for calculation Thiele/Small for unknown speakers

Status
Not open for further replies.
Jump to Latest
D

DigiSoft

Member
Joined 2010
#1
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.
 

Attachments

  • SmartSpeakerCalculator.zip
    SmartSpeakerCalculator.zip
    419.1 KB · Views: 678
  • ssc.jpg
    ssc.jpg
    108.9 KB · Views: 948
Last edited:
#3
DigiSoft said:
Ok So I've measured my 12" Bass using my software and I got Qts of 3,5857 😱


Is this really bad bass?
Click to expand...
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..
 
#4
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:
#10
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).
 
#12
I like the idea of having a nice little program to calculate the values so I don't have to do it by hand, although I do agree you should put a small reference at the bottom of the program. Although, if you don't know where the original is (as is often the case) you could ask here, for example, as someone obviously knew.

Pity he's gone though, the program would have been useful. I guess I could do some thing in MS Excel, but still...
 
#13
DigiSoft said:
It's better for the planet without you.
Click to expand...
Obviously you are young. Well, take advantage of that, change your bad manners (not with me, but for sake of the older more respected people in this forum and everybody else), go on with the needed discussion, and let your nice product mature and be useful in the future. Don't get stuck, yourself, in the entanglement of words or bad habits and definitions. If you give a product for free (or it's use), state that, and take advantage of that, you can be succefull with that. But also understand that your success will be in part in relation to the confidence that most of it's users will deposit in you, on your technical merits and previous learning and discussion.😱
 
#14
If the note on the bottom of the software is really important "The need for accuracy" then you must understand that you cannot get accurate data from a single frequency measurement using a multimeter! There are lots and lots of better ways to do the measurements than that.
 
Status
Not open for further replies.
Top Bottom