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  1. Driver Phase Alignment Technique Clarification

    REW Forum
    I am trying to 'optimize' the performance of my main speakers by phase aligning the drivers. System is actively crossed as follows. Top end is an Oris horn with Tang Band 8" driver crossed at 204hz using L/R 24db xover, covering 204hz-20kHz. Next is 15" woofer open baffle crossed from...
  2. Another time alignment how does this look thread

    REW Forum
    Attempting to perform t/a using a UMIK-1 & Rew. I've read probably a 100 post & spent hours researching the how's & why's. While they were extremely helpful, I'm still left a little unsure about the timing of my tweeters. So I'm attaching my file & if any one would be kind enough to take a quick...
  3. Car Audio measurement and time alignment

    REW Forum
    I have a notebook with a Umik-1 microphone. I have some questions on measuring car audio as it seems you would do it differently from rooms. 1. It seems that you would use mic pointed to the windscreen with averaging of 4-6 positions around the head area with sine waves to get the true FR of...
  4. 100% NooB! Time alignment

    REW Forum
    Hello HTS and company, I have long been a fan of DIY but other than build a box and throw a woofer in it and use a half baked off the shelf XO solution, I have been afraid to try to measure speakers and learn what the data means and how to use it... until now! :surprise: I have built a 2 way...
  5. Duel Sub woofer phase alignment check (yes again)

    REW Forum
    Sorry to ask this yet again I did do a search but a lot of the info was posted years back and is unclear. There has been quite a few updates to REW since then. Is there a clear written guide on how to use REW to determine if Duel Subs are both in phase with each other. One is located Front...
  6. Time Alignment & FIR filter for linear phase

    REW Forum
    Hi guys, I am in the final stages of producing a 3-way pair of stereo loudspeakers which have a flat baffle. I want to try and use the new acoustic reference feature in REW to allow me to accurately measure the impulse response and phase of each driver at the microphone reference point (1m...
  7. Time Alignment REW+UMIK & outputting HDMI to Headunit

    REW Forum
    I know this is getting kicked around here lately, but I'm still unclear on how to perform a time alignment with REW/UMIK & outputting HDMI to my cars headunit. I just upgraded to 5.15 & I'm scratching my head here on the correct setup. It appears John has migrated/created some options on the...
  8. Issue with timing reference loop back and XMC-1 sub time alignment

    REW Forum
    I've been trying to use a timing reference, but keep getting a frequency response plot that looks altered. I initially had lots more interference until I disconnected my amp from the XLR connection, but after figuring that part out, the freq plot looks decent, but is skewed only when using a...
  9. Help with AVR Time Alignment

    System Setup and Connection
    I am going to be helping a good friend of mine set-up his new AVR soon, and I am trying to get my head around the best way to use the "Distance" setting within the AVR (It's a Sony STR-DN1060) to time align the speakers to the Subwoofer. I compete in (and have won) SQ Car Audio Comps so I have...
  10. A few time alignment questions

    REW Forum
    Hey all, So thanks all for your help some weeks back. Since then I've had pretty decent results with using excess group delay via REW (in combination with impulse alignment near crossover) as per some of the guides made by the folks here (for aligning subs to mains). I have a few questions...
  11. Phase Correction and Time Alignment in Car Audio

    REW Forum
    Hello fellow members, I am trying to tune my active car audio setup. It has a 3-way active head unit. I also have both the Dayton and Umik USB calibrated mics and a multichannel USB sound card. Is there a concrete method in REW to both phase correct and time align the individual drivers. I...
  12. Phase Alignment?

    REW Forum
    I'm researching adding an Emotiva XTA-200 to my system to take the fronts (see sig.) of the AVR's power. I'm considering also adding a MiniDSP and EQing the fronts separate from MCACC on the Pioneer AVR. FYI there's a mode (Front Align) that does that by setting only the level and distance and...
  13. Time Alignment in Car via Impulse Response

    REW Forum
    Starting a new thread for this issue. I'm trying to use REW's impulse response measurements for determining the time alignment settings for my car audio system. Here are the testing parameters: Using a Behringer ECM8000 and M-Audio M-Track sound card. REW used on a MacBook Pro. Mic was...
  14. Time Alignment

    REW Forum
    How can I use REW to time align my tweeters to my mid horns? I know I have to align the drivers vertically then use REW to check it. What should I be looking for???
  15. Time alignment with impulse response

    REW Forum
    Hi There I'm very new to this program and just trying to explore how to do a time alignment reading for my three way active speakers. The crossover is the Behringer DCX2496 but I am not using the built in time alignment function in this device due to it being disabled as a result of a mod. I...
  16. How important is on-axis mic alignment?

    REW Forum
    I'm working on measuring and correcting a small home studio, and I have my speakers toed-in such that their paths intersect roughly 18 inches behind the listening position (as has been recommended for proper stereo imaging). In reading up on conventional wisdom regarding measurement mic...
  17. Sub distance setting and phase alignment problem.

    REW Forum
    Hi all. I am having some real trouble with REW and getting my subwoofers in phase with my mains in my home theatre i was hoping to get some help with ? I have my subwoofers crossed over at 90hz in my AVR. And with a distance setting of 6m. Mains have a distance setting of 3.4m. Measured with...
  18. Another sub/mains alignment issue

    REW Forum
    I find it extremely hard to make it [the knowledge of which way to adjust distances when manually aligning sub/mains] stick in my head such that every time I do this, I spend more than half the time wondering whether I've pushed it the wrong way or not. I must be getting old :olddude: To that...
  19. How to get time alignment graph?

    REW Forum
    I see this graph online but can't figure out how to do it. http://s24.postimg.org/dqwaumrb9/impulse_subs.jpg I have "Use loopback as timing ref" turned on & I have 1 channel looped back & mic in the other channel. I guess I need a walk thru, click by click on how to generate this graph?
  20. Time alignment with UMIK-1?

    REW Forum
    I have UMIK-1 as the calibration mic. Is there anyway to do time alignment with a USB mic? FYI: My sound card is Creative X-FI HD USB external card Thanks :)
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