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Originally Posted by tinseljim /img/forum/go_quote.gif
I used to do a little bit of recording engineering and the person who trained me was trained by the BBC. I was always told that EQ = distortion! Don't do it... it will be as you said - unrealistic.
If you're listening to speakers though, EQ for a room may be entirely appropriate to neutralise any standing waves etc.
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Most equalizers work by changing the phase of a particular frequency, which causes phase cancellation, which causes that frequency to dip or grow. Phase changes are a form of distortion, and excessive EQ can cause major issues.
There are in fact linear phase equalizers. Most mastering houses use them now when mastering music. But it is very likely that no portable media player on the market has a linear phase equalizer. My Zen, for example, definitely causes phase and soundstage problems when the custom EQ is used. Their presets seem less damaging, not sure why. They could be using a different algorithm for the presets than they are for the custom.
When recording, the absolute best EQ is microphone placement. And when playing back, the absolute best EQ is room treatment (foamy walls, etc.) With earphones, the best EQ is a good design at the factory, and a good fit.
Quote:
Originally Posted by roy_jones
"Mental burn-in" is a real phenomenon. It makes the whole concept of neutrality somewhat enigmatic because it's an inherently relative concept.
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The phenomenon is true, but I'm not sure your conclusion is. The brain can correct for all kinds of audio issues, most common being frequency balance and comb filtering. There have been extensive studies on this (by both audiologists and Rupert Neve), and it has been shown that corrections by the brain cause listener fatigue (ears getting tired) and negative emotional response (ick, I don't like this). So there are tangible benefits to accurate frequency response.