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Old 29th July 2006, 10:35 PM   #1
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Default Speaker Measurement System (Mic, pre-amp, software)

I'm looking to setup a loudspeaker measurement system for T/S parameters and speaker testing

So I have done a bit of searching through a bunch of threads and this is what I have come up with for a shopping list. I'd rather buy the equipment instead of make it myself. However I will make the wallin jig or equivalent.

Jig

Mics
BEHRINGER ECM8000

Pre-Amp
Rolls Mp13
BEHRINGER UB802

Software
Speaker workshop
LSPCAD 6
Arta
Audio Tester

I have decided on pretty much everything except for the software. I would like something a little user friendly. I'm leaning towards teh UB802, ECM8000, and Audio tester. WHAT ARE YOUR THOUGHTS OUT THERE AND IF YOU HAVE ANY OTHER EQUIPMENT TO ADD PLEASE PROVIDE THE LINKS.

thank you






Audio Tester Arta LSPCAD 6 Speaker Workshop BEHRINGER UB802 Rolls Mp13 BEHRINGER ECM8000 Jig
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Old 29th July 2006, 11:02 PM   #2
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Speaker Workshop is not user friendly, but it's free and does everything you require so try that first. The others have free demo versions so why not try them all and report back with your findings?

Another software application that you should consider is Sample Champion:
http://www.purebits.com/

One thing that is not on your list is a soundcard. A motherboard's built-in sound will usually give you pretty good results but an external sound card (not Creative Labs!) will be needed for absolute accuracy.

FWIW, I use Speaker Workshop with an M-Audio Audiophile 2496 sound card. It works just fine.

Nice one,
David.
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Old 30th July 2006, 05:03 AM   #3
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Default sound card

thanks, I did forget the soundcard. An M-Audio transit was recomended if you have a laptop.
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Old 31st July 2006, 06:19 PM   #4
kevinkr is offline kevinkr  United States
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I can recommend audiotester software which I currently use with the transit. I plan to install this on my media server with an audiophile 2496 pci.

I purchased a Behringer ECM8000 and designed a low noise mic pre for it using the Analog Devices SSM2219 low noise mic pre-amp ic. Has phantom power and switchable gain levels.

I originally planned on using the UB802 mixer but was concerned about the overall flatness of the mic pre-amplifier in this. I had also considered an m-audio dmp3 as it is known to be quiet and has extended and relatively flat frequency response.

If you are interested in possibly purchasing a set of boards let me know as I have spares. I will post a pix of an assembled set of boards tonight.
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Old 31st July 2006, 06:48 PM   #5
Gyuri is offline Gyuri  Hungary
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Default DLSA Pro

Is there anybody who knows it?

http://www.dlsa.de/

http://www.audioxpress.com/reviews/m...eycutt2066.pdf
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Old 31st July 2006, 08:24 PM   #6
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I used Speaker WorkShop for a while, I became tired of it as it seemed to be geared towards older PCs and I had several lockups.

I use Soundeasy Now, there are a few bugs in it but once you get the system down it's a walk in the park. And I believe the support is far better.

I'm using the BEHRINGER ECM8000 and the BEHRINGER UB802 along with an EMU 0404 sound card. For the amp I have an old Yammhammer that switchalbe to class A amplification. As for a Wallins Jig, mine is some what geared for what I do, and is far bigger. I still have signal generators and scopes to test other things I like to look at.
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Old 31st July 2006, 08:47 PM   #7
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I'm using ECM 8000 with MIC 100 (Behringer) and the M-Audio audiophile 24/96 and I highly recommend Arta.

Greetz!
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Old 1st August 2006, 06:43 PM   #8
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I also consider Arta, but I cannot even try it. I have soundcard with in-built mic preamp and the measurement box is not suitable for this configuration. On the other hand, on Arta's web is written that sw has been succesfully tested with Tascam US-122, which I own. The same it is for M-audio MobilePre.
Does anybody deal with it?
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Old 2nd August 2006, 03:20 AM   #9
kevinkr is offline kevinkr  United States
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Here is a pix of my ssm2019 based mic pre-amplifier. I will be assembling and testing it within the next few days. Will probably publish the design on my site - it is pretty simple actually.

It uses a mix of smd and through hole devices. Up to 60dB of gain is possible. Supplies are regulated +/-15V and 30V phantom.
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File Type: jpg pre-amp board.jpg (16.0 KB, 1127 views)
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Old 2nd August 2006, 07:45 AM   #10
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I might be interested in one of those boards. Is the supply power AC or DC?

Really I'm just looking for a simple pre-amp that is easy to use for my setup. The Behringer has quite a bit of stuff on it.
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