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In Reply to: RE: Agree posted by E-Stat on February 08, 2025 at 06:44:14
I walk (or crawl, for speakers with limited vertical dispersion) around the room with low-frequency test tones and/or music with repetitive bass lines playing. I'll then put bass traps wherever I hear bass resonances, or where bass seems loudest...I'll disregard symmetrical placement schemes unless my ears tell me to do that. This simple method works for me.
Edits: 02/08/25Follow Ups:
The best way to place tube traps or really any sort of room treatment is to first find the problems in the room using a SPL meter and frequency generator. Find all places in the 3 D space if the row here the sound pressure is greater than say 4-6 dB greater than the average sound pressure level in the room. Then you know exactly where the actually acoustic problems are. For example in room corners the best location for a tube trap might very well be located a foot or two away from the corner. Also, if a tube trap is not placed in the correct place the sound can suffer, ditto acoustic resonators, diffusers, echo panels, etc.
Edits: 02/09/25
I don't use an SPL meter, but I can hear where the bass is strongest near room corners. It's usually strongest a foot or two away from the walls, as you say...
I find using a frequency of 315 Hz with SPL meter works very well for figuring out where acoustic treatments should go, I.e., above low bass frequencies.
Edits: 02/09/25
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