Pink noise truerta plus#
On the plus side, they are more accurate than the iPhone app, but with a little tweaking, the iPhone app will work just fine.
Pink noise truerta software#
Keep in mind, there are other software and hardware solutions for RTA sound frequency analyzers, but at $300+ the cost is significantly more. It will save you hours of headache and help you reach your goal of the best sound possible.
You will be so glad that you spent $5 on this app. Note: If you are using the X32, follow this post instead. You no longer have problems with feedback and you can run your sound at a higher volume without irritating people’s ears.Īctually, when someone says that the sound is too loud, it is generally just one part of the frequency spectrum that is too loud, not the overall sound.īy using the following tools, you will be able to analyze sound, find bothersome frequencies, and cut them so they fit with the rest of the sound spectrum. Maybe the time has come to sell my subwoofers.When you get EQ right, the end result is amazing. Not bad for a pair of two way stand mounted monitors. Note the fairly flat in-room bass response down to 25Hz. The blue line shows the frequency response after a quick digital room correction setup. The green line shows the non-equalized response at the prime listening position between 20 and 200 Hz.
The average also shows the natural progressive attenuation of high frequencies that occur in a listening room.įinally, the last graph shows only the region where digital room correction was applied with the Behringer DEQ2496. The averaged measurements show the “BBC dip” that the designer of my speaker was nice enough to implement into the crossover. The figure below shows the prime listening position in green, and all listening position measurements averaged together in brown. True RTA has features that enable you to average a number of measurements together. I surely don’t want my head locked into position with a vice when I listen to music! The graph below tells me that it is safe to adjust the frequency response up to about 200Hz, but any adjustment after that would adversely affect other positions near the prime listening area. This is due to the size of the wave the smaller the wave, the more dramatic the differences are for small changes in location. Notice that the peaks and dips between all positions are similar up to about 180 Hz, but begin to vary progressively as the frequency response increases. The next figure shows measurements of the six different positions where a listener’s ears are most likely to be found at the listening position in my room. If your listening is done on a couch, taking a number of measurements at different positions along the couch give you a more complete picture of where equalization will be effective and where it will be destructive. When deciding where to apply equalization to an audio system, it is useful to see a number of different measurements around the listening position. True RTA also allows averaging of a number of different measurements, as well as smoothing for easier readability.
True RTA also allows saving snapshots of various measurements so that they can all be viewed at the same time, something you can’t do with the Behringer hardware. While a digital equalizer like the Behringer DEQ2496 does not require the use of a software package, I found the resulting graphs in True RTA easier to use than the RTA screen of the Behringer unit. For the group of measurements pictured below, I used a Behringer ECM8000 measurement microphone and an M-Audio Audio Buddy microphone preamp hooked up to the soundcard in my desktop computer. 5 db.Ī reasonably good measurement microphone, as well as a microphone preamp is needed to obtain measurements with True RTA. The program will self calibrate and cancel out any of the sound card’s frequency response anomalies, giving you measurements accurate to. One nice aspect of the program is that it is effective even with standard and inexpensive soundcards.