Notes about Equipment The cheapest good audio interface for the purpose of measuring is the tascam US122 MK2. It has decent DACs as well and functions as a decent 2 channel device. I have studio monitors on my desk setup and if i were to do it again i would buy an because it has balanced outputs.

The tascam's knobs also feel a bit cheap and the m-audio might feel better built. For those wanting cheaper, i dont know of anything. If you have a capable pci soundcard you can skip the tascam and buy a behringer xenyx 502 for phantom power (to power the emm-6) but it gets a lot more complicated AND it's not portable. So i would recommend buying an actual audio interface like the m-audio or tascam that has phantom power built in.

Apr 06, 2012 REW Room EQ Wizard tutorial presented by GIK Acoustics. In this video we take you through downloading, installing, and using. You will want to set the measurement microphone at ear level of your main listening position. Click the Measure icon in the upper left corner of the REW program, then.

(Note: for this guide I'm using my tascam US144 MK2, thats why it looks slightly different) SPL meter I have the aperion meter and I'm pretty sure its the same as the radioshack meter, it's just $29 with free shipping, making it a GREAT deal. For some reason it's still a fairly well kept secret. It's pretty accurate too which cant be said for a lot of the cheaper mics on places like amazon Issues with Monoprice. Generic Pnp Monitor Driver there. com Some of you are probably wondering why I've recommended cheap looking cables when monoprice has 'nice' ones for cheap. The problem with monoprice is they had a bad batch of RCA->XLR cables over the course of several months. I ordered cables in november, RMA'ed them almost a month later, then they shipped me even more defective cables.

I dont trust them to wire RCA->XLR cables anymore, so i can't recommend them. The 'cheaper' looking cables work for me fine. Youre free to order from monoprice, just realize if you dont have a multimeter and know the pin guide its hard to establish if a cable is broken or something else is. Microphone: The Dayton emm-6 comes with a calibration.txt file (this will makes sense later in the guide) from 20hz to 20khz, if you think you have a serious subwoofer setup and have a lot of output below 20hz you may want to buy a mic that is calibrated from.

The Basic+ is $75 + $9 shipping. This will result in 5hz to 20khz calibration. Apparently its also recommended for car audio measurments (probably because it offers 90 degree angle of incidences if youre facing the mic 'up' at the position of your head in a car, best guess). Alright, now onto the instructions: • Install the USB drivers for your audio interface, heres the • Install Before opening up REW make sure your windows levels are up all the way on the tascam (if its not shown, right click on the volume icon and go to 'Volume control options' to enable it). Exit out of preferences. Now take your tascam, unplug the TRS to TRS cable, and plug in an RCA cable from the left LINE OUT and plug one end into whatever channel of your receive that you want to start measuring. If youre measuring a subwoofer you can plug it directly into the amp if you want.

Turn PHANTOM to On. Plug your xlr cable into the tascams MIC IN L, and plug the other end into the emm-6 For the purpose of measuring a subwoofer i put the mic facing down at the listening position at my couch. Before we can do frequency response sweeps time to take out an SPL meter Make sure the SPL meter is set to C weighted, and Slow response (highlighted below). Now, if you ran the built in calibration on your receiver then the volume at '0' should be reference at listening position.

Basically means 85db where your mic is. Feel free to turn the receiver to '0' then adjust the LINE OUT on the tascam accordingly. Getting the SPL # accurate isn't extremely important if all youre doing is getting an idea of how your room behaves with low frequencies, as nulls and peaks will show up anyways. Torrent Subliminal Studio Review here. The program will still work exactly the same, its SPL numbers will just be completely off.

Back to REW, press the SPL button. Excellent article and thanks for illustrating with photographs. It really cleared a lot. I have following questions. I ordered xlr to rca cable few days back after reading the article. What is the role of this cable?

You mentioned to unplug it and I did not find the mentioning of connection part. I did not order TRS cable.