Specifications

pdfcrowd.comopen in browser PRO version
Are you a developer? Try out the HTML to PDF API
Stimulus EQ section. Any filters in the Stimulus EQ are added in-line to the signal sent to your receiver. This allows
you to test the effects of different filters without actually loading them into your equalizer. The gain, frequency, and
Q of the filters in the Found Room Modes and Stimulus EQ sections can be manually edited. This gives you plenty
of power to try out different filters quickly and easily. You can also add extra filters by right clicking the frequency
response curve and moving the cursor to the frequency and amplitude you want.
Up to four different measurements can be saved and overlaid by using the overlay button on the bottom right of the
screen. The idea seems simple: take a measurement and then save it by hitting one of the numbered overlay
buttons. You can then show or hide each measurement by selecting the “Show” button. In practice, I found XTZ
Sound’s management of loading, saving, and overlaying measurements to be a bit of a hassle, though a few
changes could remedy my complaints. First, the inability to name each overlay is a big drawback for me. It’s difficult
to remember exactly what each curve stands for, especially if you revisit the project at a later time. I found myself
having to take notes to remember exactly what I adjusted in my system to achieve each overlay. A limit of four also
seems odd, and is one of the reasons I didn’t use this system during my review of MartinLogan’s Perfect Bass Kit
(PBK) to verify the accuracy of PBK. There’s also no option to average curves, which would be useful when trying to
show the average frequency response across a variety of locations. There are no controls to change the color, dB
offset, or frequency range of curves. Finally, saving each individual curve as a file, for reference later, is confusing.
When saving or loading a curve, there isn’t an option to select which overlay you want to save or load. XTZ Sound
clarified for me that Ithe latest performed measurement that has visible and correct spectrogram is what gets saved.
All other overlays only include frequency response. They also indicated that the reason for the current system is for
simplicities sake, as adding more features tends to make software more difficult to use, but that this system may
be re-visited in the future.
The frequency response and spectrogram w indow s can be sw apped
The last advantage to using advanced mode is the ability to independently adjust the smoothing applied to each
curve. It took me a minute to figure out what smoothing options were available because they are labeled as PPO
(parts per octave) and shown as whole numbers, not fractions. The options given are 2, 3, 6, and 12 PPO. Once my
brain kicked in, I realized that these are the same as 1/2, 1/3, 1/6, and 1/12 octave smoothing. Most people will be