Dwight Flynn |
April 5th, 2005 06:14 PM |
Sony wireless lav system gives noticeable high pitched hum
I recently used a Sony wireless lav (with UTX-B1 transmitter). The system was attached by my Edirol Fa-101 interface to my laptop for direct recording. Monitoring through a Sony MDR 7506 head-phone. There was an audible high pitched hum along with the transmitted dialogue, and I did not know where it was coming from. I then tested the system with other mics with no hum (i.e. AT897, AT825, Marshall v76 all hardwired instead of wireless). So I am fairly certain it is not the rest of the equipment (though not absolutely certain). BTW, all testing and equipment was in a 15x20 room (just in case it matters). What, if anything, can I do to reduce this problem? If I can't reduce or eliminate the problem can I use noise reduction or something else to fix it in post (note I would rather get clean sound in the first place than have to fix in post, but if need be I'll do it)?
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