M
Mr Blues
New member
Whats a cheap alternative to using a SE Electronics reflection filter that would do just the job or come fairly close?
Dave
Dave
M
moresound
Loud Sun Studios
I mounted a 2'x3' curved piece of foam on a microphone stand once and it worked fairly good I put a piece of cloth over that as well.
Good thing I didn't go out a purchase a Se for I don't use that contraption any more.
What makes you think you need such a device?
Good thing I didn't go out a purchase a Se for I don't use that contraption any more.
What makes you think you need such a device?
M
Mr Blues
New member
I hear that the SE is great for blocking out unwanted room reflections and noise.
Some have used pillows or a fleece type material , I may experiment.
Dave
Some have used pillows or a fleece type material , I may experiment.
Dave
M
moresound
Loud Sun Studios
If you have a good sounding room you may not need any of this. And if you are close micing the vocals you may not hear the room at all!
mshilarious
Banned
You have to consider two factors when you add a barrier to a room: the absorption of the barrier, and the diffraction of sound around the barrier. Both are a function of frequency.
Short answer: it's pretty easy to absorb high frequencies, and it's easy for a barrier to obstruct them using a reasonable size. As we start to consider lower frequencies, the barrier starts to not work as well. We have to compensate by using a larger, thicker barrier with better low-frequency absorption coefficients.
So the Reflexion-sized objects are fairly good at high-mids and up, not so good at lows. Of course, our hearing is most sensitive to noise in the presence range, where the barrier will work fairly well. Just keep in mind its lower frequency limit for effective use (probably ~500-1kHz for the Reflexion).
Also consider that these same frequencies are fairly well rejected by a cardioid microphone . . .
Short answer: it's pretty easy to absorb high frequencies, and it's easy for a barrier to obstruct them using a reasonable size. As we start to consider lower frequencies, the barrier starts to not work as well. We have to compensate by using a larger, thicker barrier with better low-frequency absorption coefficients.
So the Reflexion-sized objects are fairly good at high-mids and up, not so good at lows. Of course, our hearing is most sensitive to noise in the presence range, where the barrier will work fairly well. Just keep in mind its lower frequency limit for effective use (probably ~500-1kHz for the Reflexion).
Also consider that these same frequencies are fairly well rejected by a cardioid microphone . . .
Shadow_7
New member
I guess it depends on WHY you NEED the filter to start with? Bad room? Live event and want to focus more on a distant subject and less on local sources? Isolation from other noise makers? Anything DIY will likely be considerably larger than the sE product.
If you need it for temporary room treatment, perhaps a couple book shelves grouped together and stuffed with pillows, comforters, clothes and other absorption materials. Foam doesn't really do much by itself. Outside of the more rigid acoustic stuff. It helps if you encase it with a fabric, perhaps that heavy felt stuff used on stage curtains. Carpet and other possibilities.
Or just use a more directional mic with proximity.
If you need it for temporary room treatment, perhaps a couple book shelves grouped together and stuffed with pillows, comforters, clothes and other absorption materials. Foam doesn't really do much by itself. Outside of the more rigid acoustic stuff. It helps if you encase it with a fabric, perhaps that heavy felt stuff used on stage curtains. Carpet and other possibilities.
Or just use a more directional mic with proximity.
John Willett
Circle Sound Services
The Duvet from your bed - probably do a better job as well.
Actually, I would do it the other way round; hang the Duvet behind the vocalist to prevent reflections getting to the front of the mic., ratehr than the rear, where the mic. is attenuated anyway.
