The key is difference which makes us hear it as two different frequencies. Sometimes a masked frequency can be revealed by reducing the loudness of the frequency it makes or by increasing the loudness of it. Psycho acoustically the masking in frequency domain is always relative to what frequencies are present in the audio and how loud each of them are.
The band's are chosen in such a way that each of them belong to a psycho acoustic frequency bin which will can be adjusted without messing up the near by bin.įor most us, its bassbosst and treble boost controls a 13 band eq is really a wonderful device if we know what we are doing and we know humans hear.
The frequencies around it also get adjusted like an umbrella curve. The freq of bands given on the eq represent the middle frequency of the octave they belong and it doesn't mean that alone is getting adjusted.
The real reason for an equalizer is to reverse the coloring the the source / amp / speakers and the ROOM makes before the sound reaches ur ear.
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