just came to mind:
— take the time ohrenitelnaya headphones your (drops, ear pads).
— remove the AFC from any distance, by any means
— take the frequency response for an ideal
— all other measurements compare with the standard
In General, it's similar to the Gypsy soup recipe starts like this:
1. Steal the pot.
2. Steal the rooster.
Hanna57 answered on October 8th 19 at 02:52
can be measured at home using a capsule of the microphone (is worth a penny, used in cellphones, cameras...)
Connect to the "komputer", generate white noise, pre-downloading the generator thereof. Also shake the equalizer (they are also missing the Internet), with the help of it and look at the frequency response.
If I am not mistaken, the headphone frequency response should not be straight.
Distance which will remove the feature take either standard or to your taste (tov. Klyachin with columns removes randomly rotating microphone, somebody else the way it does)
If we turn to the lab — will be removed on the same principle, only the microphone and the path will be more expensive, but the accuracy will increase by a few percent. But for domestic purposes it is superfluous.