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  1. REW Forum
    Hi, I have made a lot of measurement and have been struggling to properly measure the delay between Right and Left subs. Since I have a Behringer UMC22 soundcard Dayton mic I have the option to both run Acoustic reference and Loopback reference. I use a minidsp 2x4 balanced between a Marantz...
  2. REW Forum
    Hello, My first measurement over *Use acoustic timing reference* with HDMI and ASIO4ALL makes problem or I do not understand something here. I have to measure here in Stereo without RIGHT speaker or direct LFE, in Stereo i have delay time from 100ms. What is OK, see the files thank you...
  3. REW Forum
    I have used REW a bit and can fumble my way through most of what I need to do. But I am certainly am not an expert. I would like to find the distance/time delay from various speakers to my listening position. Is this something REW can do? If so how? My reason is, I am running my subs wireless...
  4. REW Forum
    I have been playing with REW and also some other room correction software like Dirac (test version). However I never was really happy with the results so I stopped using oder buying something in that direction. No I have heard that active speaker often have digital amps and they would produce...
  5. REW Forum
    Hi, Quick summary: I am getting a delay in my impulse response when I export it to use in an IR loader. I currently do not have an ecm8000 but do have a c414 that I am using in omni. I calibrated the sound card and used the calibration numbers for the c414 TLII found in these forums for the...
  6. System Setup and Connection
    Hi, a noob here. I hope someone could help me here to solve this problem. I have a Samsung DA-E750 and an Edifier speakers, I use my PC with a external Sound Blaster card to hear music. I am trying to use both audio systems simoultaneusly, sadly my Samsung have a small delay (like 30-50...
  7. REW Forum
    Dear experts, I did my first measurement of my speaker and need your review for understand if I'm right and I can proceed to model the crossover Any comments on the response overall are welcome as well :) Mic: UMIK 1, at 1.5 meter, inside, 76 dB measured on the tweeter axis (no mic movement...
  8. REW Forum
    Hello, did anyone managed to measure absolute delay of signal using two different soundcard inputs (Mic in: Microfon; Line in (as reference): Loopback cabel with signal)? Or is it only possible to use right channel mic in as reference signal (ref in) and left channel mic in for signal...
  9. REW Forum
    In the REW Help file, chapter 14, "Minimum Phase", there is an "Excess Group Delay" graph. Is what is shown in the "GD" button of my sweep actually the excess group delay, or is there something else I have to do to show this? I'm trying to see if there is a delay between my subs and my main...
  10. Ported Subwoofer Build Projects
    Hi guys I am building a ported ultimax 18 in 11 cu ft. Want to use a minidsp and pro amp. The minidsp can implement a 8th order butterworth or linkwitz at 14hz. This brings excursion into control without too much spl loss. Only concern now is that group delay went up to 150m/s at 12hz. At 20hz...
  11. REW Forum
    Been thinking and reading a bit more and concluded that i need to spend more time locating my sub relative to my mains before using REW to look at the combined response in room. For example the sub i have, has significantly more group delay than my mains. I take that to mean that my sub needs...
  12. System Setup and Connection
    Hello, i may need a little help here if its possible. I have an oppo 103 a Yamaha rx-v771 and a Lg Projector pf85u and i use the split av hdmi option (i read in the manual that its the best audio and video configuration) hdmi output 1 to the projector directly and hdmi ouput 2 to the receiver...
  13. REW Forum
    Ok in my setup (2 channel stereo) with dual subs I have the ability through my 2 EQ's to delay either the subs or the mains. The problem is the speakers are a folded horn design so the woofer in the mains is always gonna be about 4ms behind the mid/tweeter drivers. So should I delay the mains to...
  14. REW Forum
    Hi, Could anyone please advise if I should use the REW feature under the estimate IR delay tab that will shift the IR so the highest peak is aligned to time = zero, before I create my EQ filters? I am trying to create an IR EQ filter for some nearfield studio monitors. Am using one channel of...
  15. System Setup and Connection
    Hi guys (and gals?)-- Googling lip sync will give you about 100 hits of pages talking about video processing requiring audio delay to match. And they'll all tell you about your AVR (or TV, or...) setting to inject audio delay. I battle lip sync almost constantly. I can usually get...
  16. Electronic Processing/Equalization Devices
    When adding delay to the mains where do you measure the distance from, the grills are the drivers to the LP?
  17. Home Theater Projectors
    Hi everyone, I hope someone can help me solve my issue, I purchased an Optoma HD300X 3D 1080p projector from ebay, it was cheap because it was missing a bulb (and therefore has no warranty either) I replaced the bulb and initially it seemed to work perfectly well. Several years ago I had...
  18. REW Forum
    Hello Shacksters, The attached mdat file contains two measurements of my Paradigm Seismic110 sub taken with an Audyssey AVR microphone placed 10cm from the drive unit. I am not interested in the inaccuracy in the frequency sweep due to using an un-calibrated mic as my interest lies with the...
  19. REW Forum
    Hi, What is the source of this Group Delay issue? How can I fix this? I do not understand it... Please help. I've moved the speakers around and the more I move them the worse the picture gets.
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