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Old 14th October 2002, 05:40 PM   #1
diypole is offline diypole  United States
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Default Opinions on portable measurement eq.

Looking for opinions on portable audio measurement equip. that can upload data to computer for less than $700 u.s. Does it exist?
Any and all opinions appreciated.

Anyone use this? http://www.partsexpress.com/pe/pshow...=392-210&DID=7


Under 600hz; lose the box, lose the room and find the bass!
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Old 14th October 2002, 06:29 PM   #2
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Hi diypole,

I don't have experience with the thing.
However the usefulness of such equipment depends on what you want to measure. For serious design 1/3 octave measurements are however not adequate.
You need a good microphone (with preamplifier), a PC or laptop with a good sound card and good software like Speakerworkshop.
Perhaps you can use the thing as microphone/preamplifier.
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Old 14th October 2002, 06:43 PM   #3
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I have access to a laptop with a high speed NI daq card at the lab. What might be the best way to implement this? The sound and measurement stuff from nat'l instruments is damn expensive.
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Old 14th October 2002, 06:47 PM   #4
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Dick said "For serious design 1/3 octave measurements are however not adequate."
Thanks for the info - this is what I want to know. My research work is in the bio field- easy to tell, huh?
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Old 15th October 2002, 10:54 AM   #5
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Default Portable Measurement equipment

Get Smaart from sia acoustics or EAW. I use it all the time it does RTA, Phase, Coherence, impulse testing all from within a computer wih a sound card with a line input ....
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Old 15th October 2002, 11:25 AM   #6
diypole is offline diypole  United States
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Grecoaudio,
Thanks for the lead, I'll check it out.
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Old 15th October 2002, 02:07 PM   #7
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Grecoaudio,

I agree, Smaart is brilliant, but it's not exactly cheap though
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Old 15th October 2002, 03:04 PM   #8
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Default diypole

Check out SoundEasy software, along with a portable sound card it should do just about anything you need. Personally I use IMP/M from Liberty Audio, but it is no longer available. It is portable, and I have it plugged into a laptop.

I'm interested in your user name and sig line. I've been interested in dipole speakers for quite some time, and in fact built a dipole subwoofer based on Linkwitz' H baffle design. I loved it! Can you private email me so that we can discuss further?

Regards,
Ron
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Old 15th October 2002, 06:19 PM   #9
diypole is offline diypole  United States
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looks like this and my laptop may be my best bet
http://www.audioxpress.com/bksprods/kits/kc-cliom.htm
Any opinions?
Hey transducer, Thanks for the link. A pair of Linkwitz w frame dipole subs is what got me started in all this. I mated them to a kef coincident (rdm II with ports stuffed) in the fashion of Gradient revolution http://www.gradient.fi/En/Products/Revo/Revo1.htm
The new found bass detail and speed surprised the heck out of me and anyone I played it for!

Now I am trying to marry a BG neo8 to 2 peerless 10" csx in a dipole mtm. 3 people have heard them in a test baffle with only one peerless and want a pair already(busy christmas)!
Definately we will talk, but now I must run home and rescue the wife from the 3 girls...see you tommorrow.
ps-not like I do this at work or anything
regards, Jason
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Old 15th October 2002, 06:40 PM   #10
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As for the software: have a look at speakerworkshop.com. Freeware and perfect for the purpose. I have used it for years and it is still improving. Have a look at my website for an example of the design process: home.hccnet.nl/ine.dick

Dick.
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