wolfman005
Active Member
So a bit of sound wave theory/thought from someone who dabbles in audio enough to get himself in trouble...
Lately I have been reading about the Grateful Dead's "Wall of Sound" and how they used 2 out of phase microphones to deal with feedback.
I also happened across some threads about lectern mics and how you can use 2 our of phase mics to reduce feedback.
My question is, how concrete of a feedback elimination solution is this? Because I don't see it being used much when I tag along with a buddy who does band gigs, and at one of the theaters I work at, I don't see it used either. If it's really as simple as swapping pins 2 and 3 (via the push of a button or a miswired cable) and all it requires is a second mic placed within a few inches of the first mic, than it seems like it could benefit a lot of situations. Obviously not all of the situations would allow a second mic to be placed properly, but for a lot of the feedback issues I encounter it seems like it would be a really easy way to reduce feedback.
Any reasons why I don't see this in the wild or have I just not done any gigs big enough to have the budget for extra mics yet?
Lately I have been reading about the Grateful Dead's "Wall of Sound" and how they used 2 out of phase microphones to deal with feedback.
I also happened across some threads about lectern mics and how you can use 2 our of phase mics to reduce feedback.
My question is, how concrete of a feedback elimination solution is this? Because I don't see it being used much when I tag along with a buddy who does band gigs, and at one of the theaters I work at, I don't see it used either. If it's really as simple as swapping pins 2 and 3 (via the push of a button or a miswired cable) and all it requires is a second mic placed within a few inches of the first mic, than it seems like it could benefit a lot of situations. Obviously not all of the situations would allow a second mic to be placed properly, but for a lot of the feedback issues I encounter it seems like it would be a really easy way to reduce feedback.
Any reasons why I don't see this in the wild or have I just not done any gigs big enough to have the budget for extra mics yet?