|
Standing waves occur at integer multiples of the half-wavelength of the parrallel walls. This is because sound is bouncing back and forth between them. Theses frequencies will be boosted and will ring.
For a demonstration, set up a delay with high feedback (so you get 10-30 echoes) then turn the delay time down to about 12ms and 8ms. You can roll off the high end of the ouput too. Mix it with the original signal so that the level is about -1 to -3dB compared to the direct signal.
Run some program material through it - Kettle drums, Tuba, double bass. Vary the delay time a bit until you hear the effect.
-tINY
|