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interpreting

  1. Interpreting Group Delay Graphs

    REW Forum
    What exactly can I read from the group delay graphs? As an example let me first refer to the spl graph. I think a flat spl response is good. A dip in it can have various causes for example I may getting cancellation because two out of phase signals are interfering with each other, or I may be...
  2. Help needed interpreting my graphs

    REW Forum
    Hello all, it's been very nice so far knowing the HTS forums and experiencing with REW. I've gone through some threads that helped me using REW and interpreting my measurements and also REW help files were of great value. Despite working with professional audio for 6 years I am a newbie with...
  3. Using the measurement graphs, and interpreting the results...

    REW Forum
    Hello, So I've successfully got measurements for my room, both before and after some bass trap treatment. (phase1) Thing is- what is the best way to interpret the graphs? Are spikes/sharp troughs in the graphs the thing to watch out for? I noticed after reading some posts here that Blaser...
  4. Help Interpreting Soundcard Calibration

    REW Forum
    Greetings All, I'm just getting into using REW to characterize my setup, but I am failing to understand what the deal is with the loopback graph I am getting from my soundcard. I have used other software and I don't get the same kind of frequency response, but other software may be smoothing it...
  5. Measuring and interpreting impulse response and ETC

    REW Forum
    I thought I'd start a thread on measuring and interpreting REW impulse response and ETC charts for my room for the purpose of planing and executing a room treatment strategy. I recently became aware of this function and find it a fascinating tool to look at energy reflections. I do not yet have...
  6. First measurement - help interpreting it

    REW Forum
    Hi, I just finished taking my first measurement and I just want to post the graph to see if I'm doing the measurements correctly and also to get some help interpreting them. Just a quick background for why I'm doing this: I have a pair of stand-mounted monitor speakers (Dynaudio C1) and I want...
  7. Need some help interpreting and setting direction

    REW Forum
    First off let me say thanks for the great forum. Amazing amount of info. One day I realized my HT sounds terrible and I've been trying to improve it. Getting a good sound is becoming a full time hobby:) I've tried a number of things and am somewhat stuck now. I've got some...
  8. Interpreting my graph PLS

    REW Forum
    hi, ihave measured my sub , but what i get... i think its quite bad. Problem is i dont have much positions for the sub. i have a DSP1124, maybe i can correct as much as possible? Or what would be the thirst thing i have to do? I dont have an spl meter only an ecm8000 i dont know what the...
  9. Interpreting First Graphs

    REW Forum
    Hi, I need a bit of help interpreting these graphs. I don't quite understand what they mean as far as room acoustics is concerned. First graph has the 1/3 octave smoothing applied, second is the raw one and third is the waterfall. Room is rectangular, 15.5 feet x 19.5 feet x 9.5 feet high...
  10. Need help interpreting phase graph

    REW Forum
    Hello. I am new to REW. I have made several measures of my subwoofer and have achieved a fairly good frequency response with the help of this excellent program. So now I wanted to try and measure my front speakers but I really need help interpreting the phase graph of my measurement. This is...
  11. Interpreting Ilkka's chart

    Home Audio Subwoofers
    I wasn't sure where to post this. the archived subwoofer forum only has tests, so I'll post here. Please point me to a reference for interpreting the "group delay" and "spectral decay" charts. I have some ideas on the group delay chart, but the spectral decay has me totally miffed!:huh: Thanks!
  12. Help with interpreting impulse and ETC graphs

    REW Forum
    Hi all; Based on the following two graphs, I have 3 questions. Please let me know what you think. Attached is an Impulse graph followed by an ETC graph of a full-range speaker. The questions are: 1) Whether the -ve peak in the Impulse graph around 2.5 ms, which corresponds to the +ve peak in the...
  13. Interpreting WINisd models

    DIY Subwoofers - General Discussion
    I have a couple of questions to help me better understand what I am looking at in WINisd. Transfer function magnitude graphs for two different drivers tuned to 16Hz.: 1. Is this essentially the modeling of the anechoic response curve? 2. Where does room gain start to kick in? I seem to...
  14. interpreting readings

    REW Forum
    So far, I have successfully taken readings and applied the BFD to fix the low frequencies in my room. What about higher end frequencies? I've attached a picture of what the full range reading looks like, and after about 750hz, things get a little crazy. What causes this? Is it not possible to...
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