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loopback

  1. REW - Loopback timing question

    REW Forum
    Hello, I read the REW manual and explored online, but I'm a bit confused in regards to what the "loopback timing" measurement actually does. Or maybe I'm not confused, I probably just overloaded my brain :) Could someone please let me know if my understanding is correct? 1. Without the...
  2. Focusrite 2i2 Loopback calibration high freq rolloff?

    REW Forum
    Hi Everyone, Im new here and could really use your help. I am using the new version of REW 5.19 beta 8 and I am a mac user. I just purchased a Focusrite 2i2 USB and I want to make sure I am doing the REW sound card loopback calibration correctly. I was expecting flat response out to 20k the low...
  3. Asking for Help - Calibration loopback - Xenys502USB

    REW Forum
    Hello guys, I've been leaning a lot with DIY stuffs and due to that I started a journey to improve my subwoofers as you can see on the post below. http://www.diyaudio.com/forums/subwoofers/299036-th-15-flat-response-35hz-3db-lordsansui-14.html#post5098724 Now the cabs are ready and I'd like...
  4. Enlarging the notes window for calibration measurement using loopback

    REW Forum
    I can't seem to enlarge the notes window for calibration measurement. I guess its kept intentionally small, to allow multiple measurements to be tabbed. When doing a loopback cal then there are a lot more details than the notes window size can show, especially for the soundcard setup. Yes I...
  5. Loopback for Sound card cal.

    REW Forum
    My new laptop has only one 1/8" port for connecting a headset with a mic. I am trying to find a way to perform the sound card calibration but I haven't found a way to make a loopback cable. I have tried making my own by taking an old 1/8" plug and shorting one of the output wires to the mic...
  6. Loopback issue

    REW Forum
    Hi, My name is Matthijs, im from the Netherlands and am also trying to get this working but whitout succes so far. I get stuck on the loopback part, im using an mk3 motu as interface but the results from the soundcard doesnt seem to be right and i realy dont understand why that is. i watched...
  7. Loopback as timing reference issue

    REW Forum
    I just downloaded REW's latest version...I have a Focusrite Clarrett 8PreX interface connected via Thunderbolt to my Macbook Pro. Avantone Mix tower powered speakers. Dayton EMM-6 (calibrated). I'm trying to figure out how to get a "System Delay" calculation made. I've imported the mic...
  8. Loopback and timing reference

    SPL Meters | Mic's | Calibration | Sound Cards
    I have been using loopback timing reference to measure speaker distances from the microphone tip (=listening position). I got realistic distances (calculated from the impulse response delay times) with my older soundcard M-Audio Fast Track Pro (Java), but the new Focusrite Scarlett 18i8 (ASIO)...
  9. Setting Loopback Timing Reference Correctly

    REW Forum
    Hi all, I'm currently stuck at trying to get my drivers time aligned using REW. I have setup the system in the following manner: 1.) ECM8000 is connected to Steinberg UR22 preamp/audio interface on the right intup channel. 2.) Steinberg is connected via USB to the Mac Mini. 3.) Mac Mini is...
  10. Which I/O for loopback timing function?

    REW Forum
    I'm using my video card's (Nvidia GeForce 560) HDMI output to send audio signal to my Emotiva UMC-200. This allows me to select which speaker I want to test using ASIO4ALL. That way, I don't have to unplug and configure lines for each speaker. My input is via a Behringer UM2. My question is...
  11. Waterfall correct when using loopback?

    REW Forum
    I'm using JRiver and its loopback function and that enables me to measure the response with REW too. However, wil the waterfall (which is time based) be correct when doing this?
  12. Phantom +48v on loopback connection

    REW Forum
    Hello, I'm just learning how to use REW, pretty nice piece of software it is! There is just one thing; while doing the soundcard calibration with the loopback connection, I've noticed that frecuency response varies a lot depending if the phantom power +48v on the mic input is ON or OFF (good...
  13. Loopback question

    REW Forum
    Brand new REW user (although I haven't used it yet). One of the first things I want to do is use REW to set speaker delays using loopback. I have planned on using the HDMI out from my laptop and the USB mic I just ordered from Cross Spectrum, but none of the loopback documentation talks about...
  14. Loopback for timing reference with Saffire Pro 24

    REW Forum
    I am now using a Focusrite Saffire Pro 24 which is connected via FireWire to my HTPC and via the 6 line outs to the 7.1 multichannel inputs on my processor. This means I have no spare analogue output to use as a loopback. I can think of 3 possible solutions but am unsure if any of them will...
  15. loopback calibration

    SPL Meters | Mic's | Calibration | Sound Cards
    Hi! I've bought myself a Behringer UCA 202 USB soundcard (takes 5 weeks to be shipped here :sad:). I'm planning to use this with a Behringer FBQ1000 (100% compatible with DSP1124) and a Galaxy CM140. In advance I've been reading this...
  16. Creating loopback for internal laptop soundcard

    REW Forum
    Hi all, Dumb question but I can't figure out how to create a loopback connection on a Dell or Lenovo laptop with internal soundcards. Is some wiring connection needed? I recently bought a UMM-6 USB mike and downloaded latest beta REW which I think is compatible with USB mikes. Really looking...
  17. Max SPL measurable when using loopback as timing source

    REW Forum
    My measurement chain is a CSL calibrated EMM6 into an Art USB Dual Pre mic preamp/usb soundcard. I use the 2nd channel on this for loopback and then connect the other channel to a spare analogue input on my processor. When using loopback I find that I have to turn up the gain on the timing...
  18. How to configure hardware loopback when using ASIO/HDMI?

    REW Forum
    A respected contributor in an REW thread over on AVS Forums has advised me that the "Use Loopback as Timing Reference" must be configured in the Impulse Response Calculation section of the Analysis Preferences tab. Furthermore, the "Set t=0 at IR Peak" must be unchecked. Without these...
  19. 'Use loopback as timing reference' How to?

    REW Forum
    SOLVED 'Use loopback as timing reference' How to? Hi, I have been using REW for a while but only recently realised the significance of this feature but unusually for me I seem to have hit a mental stumbling block on how to get it working??? :dontknow: I want to correctly time and phase align...
  20. Loopback connections by ASIO

    REW Forum
    Newby with a first post here! I only use the Line Out from my EMU 1212m card to connect to my stereo system, all inputs and outputs are by optical links to and from a Fostex D/A convertor fed by my Soundcraft Spirit SX mixer. I feed monitors and headphones from the mixer. So, to get an...
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