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Old 2nd August 2011, 05:34 AM   #1
Jamii is offline Jamii  Australia
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Default MiniDSP + REW

Hi guys!

I have just ordered my miniDSP, I am hoping to use it in conjunction with REW software, I am a HVAC controls technician so figuring out the software is the easy part, I have already managed to calibrate my sound card, yet to do my mic. There is minimal information about using the software to measure room response, Is there anywhere like a "RTA for dummies " on how to set up mic position in the room? I have a terrible room set up, unfortunately its almost a square room, with hard walls and polished floorboards, and a glass coffee table in the middle.. so far from ideal... My Equipment list is as follows;

- Presonus Audiobox usb DAC/soundcard
- Dayton 100-a T-Amp
- Curvy Chang full range, Pioneer BOFU drivers + Dayton tweeter combo
- Shure SM58 Mic to measure
- soon to come MiniDSP

Also, what plug-in do i need to buy? Mixer v1.0?

Cheers
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Old 2nd August 2011, 08:59 AM   #2
minidsp is offline minidsp  Hong Kong
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Jamii,

You'll find step by step information here: Auto-EQ tuning with REW | miniDSP

There are links to how to operate REW in that app note. The use of REW is very well documented on REW website.

As for the plug-in, as per the app note, you'll need to use an "advanced" version (2way/4way advanced). Here is a good link summarize which plug-in does what:
2x4 plug-ins | miniDSP


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Old 4th August 2011, 03:49 AM   #3
Jamii is offline Jamii  Australia
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I understand how to work the actual software it's self, that's no issue, my confusion lies in where to place the microphone in room to measure the room response to fully utalize EQ within REW software correctly... I have drawn a picture of my lounge room, the two red box's indicating the loudspeakers positioning within the room. I have tried to draw it to scale.

Click the image to open in full size.

Will microphone placement be where my head would be for normal listening? or do i measure each loudspeaker seperatly @ 1m and equalize for the speakers rather than the room?

James

PS. these are the speakers I built / Using

Click the image to open in full size.

Last edited by Jamii; 4th August 2011 at 03:51 AM. Reason: moar pics
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Old 4th August 2011, 07:29 AM   #4
minidsp is offline minidsp  Hong Kong
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@ Jamii,

Since you already know how to use our software, I'd recommend that you read more about REW and its setup since that's what you're after here. There is a very good community @ HomeTheaterShack here . I'd recommend that before you ask basics question, you read their very good FAQ and the numerous post made on their technical articles. It's a free software powered by a dedicated team, but you also need to do your basic homework in learning how to make measurements thanks to their tech notes.

Hope this helps,

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Old 5th August 2011, 04:57 PM   #5
Pallas is offline Pallas  Pakistan
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Read Geddes' "Sound Power" AES paper. I think it's available free on the internet somewhere.
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