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measurement

  1. REW Forum
    I just discovered REW and it is a fantastic tool. I joined because I have a problem. Everything seems to work EXCEPT taking multiple measurements. On the first measurement, I set the levels and I go from 0 hz to 5000 hz with 1M samples which takes 21.8 seconds. It works great and gives me an...
  2. REW Forum
    Hello, been trying to do this for over 5 years. Laptop with Ubuntu 14.04 Lts installed. Downloaded REW 5.1 and have installed .sh Sound-card USB Behringer UCA202 Radioshack Digital spl meter and associated .cal file. Possible error in measurement sweep of sub-woofer, graph enclosed. Is there...
  3. REW Forum
    Hi, I have a 2.1 system with a miniDSP . I have the latest REW version. crossover is 80 Hz . By the groupdelay of the sub, it isn't possible to determine the actual distance for the sub. So I want messure the timing delay (phase) with REW for main speakers and sub, and put these settings into...
  4. REW Forum
    hello guys, I am building a homestudio for producing hardstyle music ,, i did some acoustics on the walls and bass traps in the corners, i hope someone can tell me something about my frequency response, because i don't know if this is good or not . Thanks in advance !
  5. REW Forum
    I have used REW in the past and I have Omnimic V1. I am having trouble with my laptop getting the Omnimic cd to run. I have a business that has a very large and loud dust collector. To get a silencer made I need to get a measurment of the sound it is producing. I believe that is a real time...
  6. REW Forum
    Is there a way in REW to look at the instantaneous phase angle value of something (using a single tone sine wave as a tone)? I need to perfectly match the phase angle of two devices and was hoping I could do this via REW.
  7. REW Forum
    Hello, I would like to measure my loudspeakers (frequency response) but I face some difficulties. They are planar (dipole) loudspeakers so I expected some phase cancellation < 500 Hz but the freq. response looked too good to be true so I got suspicious. I did a new measurement with speakers...
  8. REW Forum
    Heya, new user here. I´m currently measuring my "living room" , it´s more of a music, mixing and listening room :whistling: Two weeks ago I made a first test measurement (REW version 5.14), and I don´t think I activated any EQ settings or whatever. This old measurement is the red graph in the...
  9. SPL Meters | Mic's | Calibration | Sound Cards
    Im completely new to measuring speakers. I wanted to measure the impedance of a speaker such that I could determine the TS parameters but the obtained results so far are not correct. To measure the impedance I have build the very simple jig with just a single 100ohm resistor. To make sure that...
  10. REW Forum
    Hi Do I absolutely need a sealed enclosure to measure VAS?. I'm struggling to find any instructions using the added mass method. Any links? Thanks G
  11. REW Forum
    Okay Im getting a funny curve whereby the impedance takes a dive after 10khz rather than rising as is normal. Im getting the message " not enough high frequency data" when I try to generate TS parameters. I'm measuring an 8" midwoofer and the sweep is running from 0HZ to 20000HZ. I believe im...
  12. REW Forum
    Hi, I just did my first REW measurement today and i dont know if something wrong with it. I used UMIK-1 microphone and HDMI with my latest IntelNUC6i5SYK. I followed the step by step guide room-eq-wizard-101-v4.3.pdf I put the mic at MLP and i measured the sub response with Audyssey ON and...
  13. REW Forum
    Hi all, I'm looking to use a single frequency (sine wave) as the source signal and then measure reverberation times at a high resolution (i.e. 0.5Hz resolution). For example: Using a source signal of 56.2Hz to excite the room. Then measuring the RT60 at 63.5Hz. Is this possible with REW...
  14. REW Forum
    Hi all, I just started with REW a week or so ago, and I've picked up a lot of useful information from this forum and I want to thank you all for that. I was able to get measurements pretty much straight away. But now a week later, I want to take some more measurements, and I have no input on...
  15. REW Forum
    Hello Everyone! First time here. When calculating the T/S parameters, REW has options to "Compensate for leakage losses" and "Compensate for Air Load”. I have read the REW help document on Thiele Small Parameters which briefly mentions the two options. However, it’s unclear as to when to use...
  16. REW Forum
    My previous car died just before Christmas, unfortunately, it was a Mazda Sp23 which came with Mazda 6 engine and a turbo charger. Great car, fun to drive, except it did a big end bearing. Upon searching the web I found this is a common problem with the big end bearing in the Mazda 6 engine on...
  17. REW Forum
    Dear experts, I need your knowledge for review my measurements on a 3 ways floor standing. Could you please tell me if they are technically correct? Is gating accurate enough or do I need to use smoothing? if yes, what value? I would have the best measurement for understand if the response is...
  18. REW Forum
    Forgive me if this is a stupid question, but I have been hunting for an answer on here and in the manual for a while now to no avail. I am trying to figure out how to take an Impulse Response measurement. Every time I attempt to run a measurement the sweep is extremely slow and not a short...
  19. REW Forum
    I would like to run an impedance curve on a device with nominal 4K (yes, 4000 ohm)impedance, with a 10K peak. The system was calibrated, and a measurement made, but the graph limit is maxed at 1000 ohms, so the actual curve is off the top of the graph. The measurement data appears to be valid...
  20. REW Forum
    Hi all, What is the other pole of the speaker connected to in the diagram? http://www.roomeqwizard.com/help/help_en-GB/html/impedancemeasurement.html Can someone give a basic explanation of how this works for an idiot like me?
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