it is impossible that you are actually getting as much output at 20Hz as you are in the midband.
Guess How Big My Speakers Are
If you read any of my threads on here or looked at my virtual system you probably already know the answer to this question, but for those who have not, try this as a thought exercise. Given this plot alone how big a speaker do you think this is?
Hints:
- 2’ from sides, 1.5’ from rear
- Ported
- Not horns
- No EQ applied. This is the natural in room response using short sine sweeps.
- For a living room this is a well treated room with GIK soffit traps, bass traps and diffusion panels strategically placed.
I’ll reveal my answer if we get 5 guesses or more. :)
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- 66 posts total
That and the peak at 30 Hz is all room/speaker/microphone location related. Some of this would probably get smoothed out if I used multiple locations for the mic and averaged them out. OmniMic uses swept sine waves, not really noise for these measurements.
@herman In an anechoic room you’d be correct. The room however bedevils those expectations, and that’s the point of the posting. Without these measurements I could do sooooo many things wrong in attempting to improve the quality of the bass. |
@erik_squires , different mike places and volumes would be interesting in themselves, but the averages would be an education. ;) Have a pleasant Xmas.
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- 66 posts total