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Help what to buy and how to connect REW

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3.9K views 16 replies 5 participants last post by  shkumar4963  
#1 ·
Hi all,

looking for a budget REW setup. I already have a old SB X-fi 5.1 (SB1090) usb sound card at home. My plan is to buy the Dayton EMM-6 mic, but I'll need some kind of phantom power pre- mic amp.

Will I be able to use the X-fi and still get the timing reference loopback feature? If I want to measure the delay and phase and delay for multi subs and room phase. If it work, should the pre-mic amp be connected to the mic in or the line in on the X-Fi?

If the X-Fi will not work, may I use the Beringer UM2, it's a cheap usb sound card? If not, may you please help me pick another one from the site thomann .de/se/cat.ht ml?gf=usb_ljudinterface&oa=pra
I live in Sweden and this site offer many alternatives at good pricing.

BR Niklas
 
#3 ·
Thanks Wayne, will look in to that thread again.

I misunderstood the shipping cost from Parts-express to Sweden, It's $10 more than the actual mic. So I will probably not buy that one. A Behringer ECM8000 may be an better option, however, it is not calibrated.
 
#4 ·
Have you looked here for a mic?
 
#12 ·
Hi shkumar,

I've done some research regarding this and cannot find anything that confirm your statement. Did he say that in any of the threads?

According to post #731 (page 74) in the thread "SPL Meters | Mic's | Calibration> MiniDSP UMIK-1 Microphone" and the thread "REW Forum > UMIK-1 timing reference and Phase" this feature is still on the to-do-list.

BR Niklas
 
#13 ·
Here is an email from John Mulcahy:
The UMIK-1 didn't exist when the V5 help was written. Download the V5.01 beta version fromhttp://www.hometheatershack.com/forums/downloads-area/47460-v5-01-beta-downloads-asio-support.html, the UMIK-1 is covered there. You can also find articles on using the UMIK-1 with REW on the MiniDSP website at http://www.minidsp.com/applications/acoustic-measurements/umik-1-hdmi-on-windows.

Hope it helps. I have not tried it myself.
 
#14 ·
If timing measurements with REW it are desired, a XLR mic is best selected so that loopback timing cable can be used on the other analog channel of the audio interface.

JohnM indicated that a new REW version will be released reasonably soon that will allow timing with a USB mic, but it is not yet clear on how long that will actually be.

If you purchase an USB mic you can probably do timing measurements using HolmImpulse. I use a XLR mic and audio interface so I haven't actually done it however. It's best to check for sure.

Timing work is much easier in Holm as the controls are better suited to the task. I use Holm for most all driver timing work and use REW for all other types of analysis.

There is also a recent post here where a workaround for REW timing using a USB mic was suggested. I suspect this will work with if done correctly, but have no direct experience.

The safe choice is the XLR mic, but...
 
#15 ·
Thanks for the info about UMIK-1 and USB mic in general, I'm sure someone looking for a mic will find this useful. For me, I have all ready ordered the EMM-6 and it was shipped today. Will look in to the HolmImpulse software =)


But I still need an USB soundcard, do you think the Behringer UCM22 will do?