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In Reply to: RE: Sound level meters, what are they good for? posted by rivervalley817 on May 25, 2020 at 11:45:46
Thanks. That's what I thought.Actually, originally, my idea was to use BOTH. I almost forgot that.
To setup up a repeatable sound in a room and then just listen in the other room because our ears are way more sensitive to sounds and frequencies than any meter.
Maybe, I should fine some irritating rap music to start with and record where I set the volume control to, etc.
Edits: 05/25/20Follow Ups:
I find having a sound level meter useful for getting a realistic decibel reading of how loud someone's listening level in a room really is. I've seen an endless number of posts over the years where someone says they listen at a "moderate" level, or "loud", etc without what that really means being apparent. One person's "loud" may be someone else's "moderate" level and vice versa.
When that can be translated to a real number, whether 80 dB or 100 dB or something else, you now have something that goes much further in terms of telling you about your needs in terms of speaker efficiency and amplifier power.
For your purpose, I doubt that you'd find a meter all that helpful. Even low-level sounds can be very annoying if they are unwanted. For example, when I'm sitting in the waiting room of a car dealership while I'm waiting for the repairs, even the very low volume of a TV in the corner with some stupid daytime TV show on can drive me nuts if I'm trying to read. You hardly need any volume at all if its a sound you don't want to hear.
For that, forget the meter. Play the music in one room and then go to the other room and just listen. Or, have the person who's been annoyed do the listening. That's the only way to know if you've got the sound blocked off sufficiently.
The best use of a SPL METER is finding the highest sound pressure zones in the room, which are the locations where some kind of acoustic treatment is suggested. Room corners and other locations in the 3-D space of the room, such as first reflection points, can often be measured as having 6-9 dB higher sound pressure level than the average level in the room when music is playing. The more of these high SPL zones you treat the purer the sound will be. A SPL and test tone, e.g. 315 Hz, is a sure-fire way to map out the room, all other methods of finding these sound pressure peaks is like trying to solve x simultaneous equations in x + N unknowns. Tube traps are sometimes not best directly in room corners, sometimes they should be a foot or more away from the room corner. The sound can be worse directly in the corner.
Edits: 08/07/20
you need John Phillip Sousa for that
pretty sure anyway
be well,
To err is human, to learn, divine
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