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I recently bought my first custom IEM Westones. I've always used traditional wedges, so this is new to me. I'm having some serious issues with occlusion when I sing. And after reading online, I find that this is actually a very common problem with fitted IEMs. I had no idea. So, over the last few days I've read everything I can find on the topic that would apply - which isn't really much to be honest. There are a couple of small discussions on this topic her at PRW...and I found an article written by Jay Kadis which was interesting. http://audioundone.com/in-ear-monitors-why-do-they-sound-like-that-jay-kadis-and-stephen-ambrose
I also found a post somewhere where a guy suggested that some folks get relief by flipping polarity on the mic...which, to my surprise, did actually help a lot but it didn't take it all away. Other than that, the general concensus has been to TURN UP the volume until the occlusion effect is overcome. Yes...that works...but it kind of defeats one of the main reasons for IEMs. I value my hearing and I'm not really happy with the level I need to overcome the occlusion.
Interestingly, I did find that if I generously applied a very drastic low cut and aggressively dialed out 400 Hz it seemed to stop even more of the problem. The 400 Hz actually was the most drastic improvement. Which makes me wonder what exactly is going on. Is it even possible that there was a standing wave developing inside my ear canal?? Or perhaps the soft tissues in there want to resonate at that frequency?
Any suggestions or experiences anyone could share or links to articles on this topic would be very helpful.
James Hook Houston, TX