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  1. REW Forum
    REW is a great acoustical measurement tool! It also has some nice measurement abilities I'd like to apply to measuring gear, not just rooms. For example, a vertical scale (linear? or log?) in watts would allow us to measure headphone amplifier THD at different output levels. A vertical scale in...
  2. REW Forum
    I have a pair of old KossFire speakers given to me that I am using as my front left and right speakers in a 5.1 system. There is an adjustment knob for the midrange and a seperate one for the tweeter. I have the Umik-1 so I figure that before I try to start moving speakers around for my whole...
  3. REW Forum
    There are references in the help file for REW's signal generator to Adjustable Crest Factor with Periodic Noise. Is that capability implemented? Is a known, fixed crest factor inherent to each of the available noise periods? If so, what are the crest factors for those noise periods?
  4. Home Theater Seating and Accessories
    Does anyone make them or is it something that makes no sense?:coocoo:
  5. Sony
    Are color guns on my tv, a Sony KV-27S42 aimable? The screen picture on my ten year old tv is fuzzy when letters are shown. To the right and left of a letter, there is a red shadow, and a green shadow. Are the color guns aimable either physically or electronically? If it is possible to re-aim...
  6. DIY Subwoofers - General Discussion
    Hello there fellow sub lovers. I've been thinking of doing my first sub build and I had a question about a design I had. It would be 22 sq" box lined with insulation with an 18" driver in it. It would then have two ports of the same size for a sonotube to be "locked in" as a vent both on the...
  7. Electronic Processing/Equalization Devices
    I'd like to share some info about an exciting SSF project I have been working on for many months. I now have some prototype hardware. In summary it will be an adjustable SSF filter with 0.1Hz resolution, different gain settings, and preset filter types. As seen in the photo above, it has a 3...
  8. Home Audio Acoustics
    I have a bunch of Sonotube left over from a sub project and I got an idea (but don't know if it would work). My thought is this - use it to build a helmholtz resonator to fix bass peaks in a room. It is my understanding that helmholtz resonators work at fairly specific frequencies and if I...
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