AVS Forum banner
1 - 11 of 11 Posts

·
Registered
Joined
·
13 Posts
Discussion Starter · #1 ·
Hi All:


I'm new to the whole DIY speaker world. Is there any sort of acoustical measurement software (similar to CLIO but not $3000), that the average guy out there could use to effectively measure his DIY speakers? As I've said, I just recently have become obsessed with speaker building, and was wondering how I could measure my finished products.


Thanks,

Shawn
 

·
Registered
Joined
·
26,476 Posts
Absolutely, follow my thread on HTGuide

http://www.htguide.com/forum/showthr...0&page=1&pp=35



You do need to buy a measuring mic http://www.parts-express.com/pe/show...number=390-801 Is perfect.


You do need to buy a sound card with phantom power for the M-audio mobilepre USB is popular.


Mic... http://www.google.com/products/catal...wAg#ps-sellers



Free software packages


REW ( http://www.hometheatershack.com/roomeq/ ) is easy for measuring subwoofers in room.


HOLMimpulse is great for measuring speaker impulses ( http://www.diyaudio.com/forums/multi...-response.html )


ARTA is another great package that is very powerful, the demo version is free and its a full version minus saving features...HOLM is pretty good for measuring and saving so no need to pay for ARTA but definiltey use it for the Polar, Group Delay, etc. You can import the measurement saved from HOLM.
 

·
Registered
Joined
·
13 Posts
Discussion Starter · #3 ·
Sounds good... Thanks much.


Could I also ask, are you, or is anyone, familiar with True Audio TrueRTA Audio Spectrum Analyzer Software. I see this is for sale at Parts-Express. Is this the same sort of thing as what you've recommended above?
 

·
Registered
Joined
·
26,476 Posts

Quote:
Originally Posted by Foamboard /forum/post/18293322


Sounds good... Thanks much.


Could I also ask, are you, or is anyone, familiar with True Audio TrueRTA Audio Spectrum Analyzer Software. I see this is for sale at Parts-Express. Is this the same sort of thing as what you've recommended above?

I have it (I paid for it), I used it for a PC based Oscillator but I didnt think it was better, I stopped using it after the first weekend since ARTA offered everything I needed.


HOLMImpulse is one of the best packages out there period, its free... Do not look down on it because its free. Dr. Geddes posted that its the first measuring packages he has switched too in 20 years. His pretty anal about his stuff so its says something about the product. Geddes does not know much about ARTA though its powerful and free too.


If you are going to spend $$$ then buy Sound Easy, You get the Measuring tools including impedance measuring, plus its a crossover design tool.
 

·
Registered
Joined
·
2,397 Posts
There are some excellent (and lower-cost) DIY options out there as well. It all depends on what you are comfortable with.


You can DIY a mic that works very well for less than $5 using a Panasonic WM61 capsule, which costs less than $2 each from Digikey.


You can modify a RS 33-2050 SPL meter per Wallin's instructions and have a $50 meter that reads flatter than your hearing. Seriously - the electronics are flat from 10 Hz - 20KHz, far better than my ears. I got mine on Ebay for $20, and spent another $20 on the parts (including capsules) at Digikey. Mine worked great afterwards. Disclaimer - not all of the meters have responded well to the mods - I am still struggling with the one I am currently working on.


If you've not guessed by now - I went the DIY route. I use a modded RS meter, Panasonic WM61 mic capsules, an E-mu 0202 USB sound card (though the Behringer UCA202 is adequate and $60 cheaper) and my old Dell latitude laptop. I use REW, Praxis, and HolmImpulse for response measurements, depending on what I am looking for.
 

·
Registered
Joined
·
2,397 Posts

Quote:
Originally Posted by Foamboard /forum/post/18293322


Sounds good... Thanks much.


Could I also ask, are you, or is anyone, familiar with True Audio TrueRTA Audio Spectrum Analyzer Software. I see this is for sale at Parts-Express. Is this the same sort of thing as what you've recommended above?

The demo version of Praxis works well as an RTA (and it is free).
 

·
Premium Member
Joined
·
1,814 Posts
Anyone know how to get a hold of XTZ? I bought the kit and my lap top died so I need the software.


I guess I could use the hardware with some of the freeware, no?
 

·
Registered
Joined
·
30,801 Posts

Quote:
Originally Posted by Wrager /forum/post/18295669


Anyone know how to get a hold of XTZ? I bought the kit and my lap top died so I need the software.

Go to the website with your serial number and download the new software.

Quote:
I guess I could use the hardware with some of the freeware, no?

Doubt it. You would lack a calibration for the mic and few programs will run with a USB mic.
 

·
Registered
Joined
·
2,397 Posts

Quote:
Originally Posted by Wrager /forum/post/18295669


Anyone know how to get a hold of XTZ? I bought the kit and my lap top died so I need the software.


I guess I could use the hardware with some of the freeware, no?

http://www.xtz.se/uk/support/file-archives


Should be what you need.
 

·
Registered
Joined
·
9,390 Posts

Quote:
Originally Posted by Foamboard /forum/post/18293032


Hi All:


I'm new to the whole DIY speaker world. Is there any sort of acoustical measurement software (similar to CLIO but not $3000), that the average guy out there could use to effectively measure his DIY speakers? As I've said, I just recently have become obsessed with speaker building, and was wondering how I could measure my finished products.


Thanks,

Shawn

Big ditto to penngray's comments in posts 2 and 4. I have HOLM and Soundeasy, and if I hadn't bought Soundeasy before buying HOLM, I doubt I would have. There are a couple of great threads on HOLM at diyaudio.


lilmike gives an excellent idea for a budget measurement mic, but for $47 the Dayton penn linked takes some beating.
 
1 - 11 of 11 Posts
Top