It is improbable that these bumps at such high frequencies are prominent room resonances. I would guess, therefore, that parametric-filter-matched EQ is the wrong solution. When you listen you are in one location, not a moving mic, and you are a binaural listener, not a "dumb" omni mic, so my instinct says that what you are seeing is acoustical interference, not resonances, and to you, a human listener, there is not a problem. We adapt to most of this kind of phenomenon - it is just in the nature of rooms. If I were to experiment with EQ I would use a broadband, low-Q filter to lower the entire region, ignoring the detailed bumps, and judge subjectively if it is an improvement using several recordings of different origin. That done, I would pour myself a glass of good wine, sit back and start seriously adapting, while enjoying the music. Remember, the room curve is a result, not a target.Hello Dr. Toole, this range between the modal region and where the speaker clearly takes over is the region I'm most concerned with EQ'ing, call it 200-500Hz. I can clearly see room effects in this range when I measure my in-room response, I'm just not sure that I should be EQ'ing closer to 500Hz for fear of messing up the direct sound as you talk about. I have 2 peaks, 1 at 360 and the other at 460 that both require a 3 db cut with a Q of 15 to flatten but when I directly compare those cuts to no EQ I either hear no difference or the version with EQ sounds just a bit "thin" in the vocals. Any insight on this range? Oh and yes I do realize this is a first world problem we're talking about lol...here is my in-room response to show the peaks I'm referring to, periodic pink noise with a moving mic method smoothed 1/12:
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If some one doubted ^that^, just having an iPhone or iPad going into the system playing tones and sliding around the sofa should reinsure them that all the reflections can add up different around the room.It is improbable that these bumps at such high frequencies are prominent room resonances. I would guess, therefore, that parametric-filter-matched EQ is the wrong solution. When you listen you are in one location, not a moving mic, and you are a binaural listener, not a "dumb" omni mic, so my instinct says that what you are seeing is acoustical interference, not resonances, and to you, a human listener, there is not a problem. We adapt to most of this kind of phenomenon - it is just in the nature of rooms. If I were to experiment with EQ I would use a broadband, low-Q filter to lower the entire region, ignoring the detailed bumps, and judge subjectively if it is an improvement using several recordings of different origin. That done, I would pour myself a glass of good wine, sit back and start seriously adapting, while enjoying the music. Remember, the room curve is a result, not a target.
I like to look at extremes. how to not EQ room phenomena in this room?
extreme example, but our rooms behave like this, too.....only to a lower extend
Is this person suggesting that you can deaden a room with equalization?
- Rich
I appreciate the suggestion. I can make that profile and listen to hear if I can tell the difference, or prefer one over the other.Above 500Hz your speakers seem rather well behaved already.
You could consider limiting the correction to only below that point.
I'm pretty new at this. How might you approach it if it were yours? Not sure what you mean by "take advantage" Do you mean adding a bass shelf of some sort?You may also be able to take more advantage of the first peak around 60Hz. It’s quite a chunky, and depending on how you look at it you could say you’re throwing away a bit too much ‘free’ bass there.
What I basically suggested is to let the bass roll off lower and steeper. It will hardly increase the boost at 70Hz, while it will make you keep more of the chunk that peaks at 60Hz.I'm pretty new at this. How might you approach it if it were yours? Not sure what you mean by "take advantage" Do you mean adding a bass shelf of some sort?
The house is usually gone after an affair with such...Lovely, but where's the house?![]()