(12-14-2020, 04:45 PM)Jags Wrote:

(12-13-2020, 09:08 PM)Jagsfan4life9/28/82 Wrote: Consider yourself sitting in a room facing an audio source. There are two paths from the speaker to your ears; one directly from the speaker to your ears, the other from the speaker, then off the walls, then to your ears. The latter is called room reflections. And these reflections reach your ear slightly later than the direct path. Due to phase cancellation, a comb filtering effect happens, similar to what's heard with audio phaser effects. Bass and lower mid-range frequencies can build up in what's called room modes. This is because the are natural resonances in any room. Basically, a room can become a speaker as it moves with the audio being played in it.

Ahh... so that’s what all that stuff was for.  I was looking to build a small box to contain noise for something I was trying to do.  Searched and all I found was the stuff mentioned above.   Knew it was for music/recording but wasn’t sure they had more purpose than just for “sound proofing” a studio.  Makes a little more sense. 

Also explains the loud restaurant thing.  I always wondered why they could get so loud if everyone would talk at a normal level.  Didn’t know the walls and layout were contributing to it.