(12-13-2020, 11:00 PM)mikesez 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.

How do you treat it? You put sound deadening material on the walls?

Yes, sound absorbing panels for reflections and corner bass traps for room modes. Reflections can also be thwarted by multi-depth surfaces. Anything that will break up the waveform from reflecting back to your ears. It should be noted that this takes measuring relative to the listening position in the room. There are guides on the web that helps with this.

---