Material advice for microphone array mount
Material advice for microphone array mount
(OP)
Hi,
I'm building a microphone array (4 small electret mics) to do field recordings of speech, and would like some advice for what materials to build the housing out of. I've built a prototype out of light wood and placed the mics into small holes that are drilled to exactly the size of the mic diameter. However any movement in the cable (as well as any friction against the wood) is picked up very loudly by the mics, and I need to minimize both these effects.
What material would you recommend that is easy to cut/drill, can be purchased in blocks, and would maximize acoustic isolation of the mics from the housing and everything it comes in contact with?
Thanks
Alex
I'm building a microphone array (4 small electret mics) to do field recordings of speech, and would like some advice for what materials to build the housing out of. I've built a prototype out of light wood and placed the mics into small holes that are drilled to exactly the size of the mic diameter. However any movement in the cable (as well as any friction against the wood) is picked up very loudly by the mics, and I need to minimize both these effects.
What material would you recommend that is easy to cut/drill, can be purchased in blocks, and would maximize acoustic isolation of the mics from the housing and everything it comes in contact with?
Thanks
Alex





RE: Material advice for microphone array mount
Cheers
Greg Locock
SIG:Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips.
RE: Material advice for microphone array mount
Works fairly well.
- R
RE: Material advice for microphone array mount
Cheers
Greg Locock
SIG:Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips.
RE: Material advice for microphone array mount
I'll try using a foam block, with a small metal plate on the bottom for strain relief on the cables (and hopefully some attenuation of waves travelling down the wire toward the mics), and I'll give hot glue and rubber rings a try as well.
Greg- I'm thinking your prediction might be accurate, but I'm hopeful that there will be enough improvement over the wood blocks when using foam (the noise with a balsa wood block was way too loud);
-Alex