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  1. Ported Subwoofer Build Projects
    anyone know what use 'transmission line' model for port simulation setting in advanced in winISD means? i notice i get a way different response with my 3 cu ft single 16x7cm square port 15 in sub box (basically a tl606 design from an old gallien kreuger cab i dont use) with it checked i get 3db...
  2. REW Forum
    I have been gating the impulse response of measurements in order to understand better the room contribution (floor/ceiling reflections) to the sound my speaker system produces. This has been most instructive. If I set the IR windows (Right Window) to 2,5mS then I can examine the impulse...
  3. DIY Speakers
    When designing a speaker cabinet using software like WinISD, BassBox, etc., it asks for all the pertinent speaker data - Vas, Qts, etc. - and it generates a predicted response plot for the selected cabinet type and features. Now, is that predicted response only for the cabinet itself (assuming...
  4. REW Forum
    Problem with simulation of Frequency Response with EQ Filters In order to investigate the impact of the EQ Filters into Step Response, ETC, T60 and so on, I've tried to obtain an impulse response of my mesaurement with EQ Filters applied. To do so, I have followed these steps: 1) Export EQ...
  5. REW Forum
    So I setup REW on my laptop and ran some measurements but am getting strange results. My frequency response has a very large upward tilt. See attached. Not sure where I'm going wrong. Tried 2 different speakers to make sure it wasnt a speaker issue. Using Radio Shack SPL meter for my mic...
  6. REW Forum
    Can anybody suggest why I can't see the frequency response in the main window? I moved the .mdat files to a different computer and get the same results. :help: Thanks
  7. DIY Audio
    Hello guys, I do wanna make a home theater myself to watch movies in projector. Cause am doing for the first time So i googled alot and got some knowledge but am still not sure about the total components i need(like drivers, crossovers..etc) to get the multiplex experience [emoji14] . So i need...
  8. REW Forum
    Hi, Have been using REW to create convolution filters for Roon, following a great guide (not enough posts to link yet!) on the Roon forums. Getting pretty good results - thanks for creating this software! I have a future request for the REW export impulse response section: Have checkboxes...
  9. REW Forum
    Hello, I would like to perform a phase measurement at the LP. But I have some difficulties to interpret the IR response: 1st: There are 2 impulses quite similar within 1 ms. When I'm pressing "Estimate IR delay" sometimes the second is selected... So I don't know which one I should select in...
  10. REW Forum
    I have been using REW for quite awhile to try to tune my system EQ. At first I thought my mic (Dayton UMM-6) is broken, because it would measure all these 20dB+ nulls that the ears don't hear, but with time I learned that they're the inevitable result of room echoes comb filtering for full...
  11. REW Forum
    Hello, it's my first post here. In the IR Windows the top two choices are windowing functions: Tukey, Blackman, Flat-Top etc. What are their uses and for what types of measurements? Is there a default one good for all situations? TIA
  12. REW Forum
    Dear all, I am importing impulse responses in WAV format quite often but it seem that REW supports 16bit only e.g. 48kHz 24bits - not supported (even I set the sound card settings to 48kHz) 48kHz 16bits - fine 44.1kHz 24bits - not supported 44.1kHz 16bits - fine, even if the current sampling...
  13. REW Forum
    I understand that I need to take measurements of each channel of my stereo system separately. I also have a decent idea of how to apply EQ to each channel using a house curve. I assume that once I create the EQ filters for each channel I will want to measure the combined effect with both...
  14. REW Forum
    Greetings I am new to the forum, writing to you from Santa Cruz CA. Working on a stereo project and am running REW on a Macbook Air which might not be ideal. I am using a Dayton Audio OmniMic USB microphone. I am trying to run basic frequency response and distortion but have an issue where...
  15. REW Forum
    I can't seem to find a way to get Summed frequency response or find any info in help files.
  16. Headphones | Head Gear
    Hi as I wrote in the title I am looking for technical details about the aftershokz headbones in particular I am looking at the frequency response details about the TREKZ TITANIUM LINK HERE. On the website they just declare a frequency response of 20Hz~20KHz. I also tried to contact them by email...
  17. REW Forum
    Is there a way to change the X-axis of the impulse response from ms to ft or meters. I can do estimates in my head, but this would be helpful.
  18. Electronic Processing/Equalization Devices
    Hi, I just wanted to know..what will be the corrected response look like if i measure it with REW. I found this image on the internet, would it look like one of the green lines or that yellow flat line in the middle which seems to be too good?. thanks.
  19. REW Forum
    Hello everyone. This is my first post. I just got as far as calibrating my new Clarett 8PreX and I'm not thrilled with what came out. Down 3 db at 18.438 kHz. I would expect a pro machine to be better. has anyone had experience with this unit or any Clarett, or the Antelope or UAD for that...
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