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[AUDITORY] Ear Probe Mics and detecting the heartbeat?

Dear List,


Just a question for those of you with experience using ear probe microphones, do you ever hear the heartbeat? I’ve built a couple of in-ear microphones, and can hear my own heartbeat, but the quality is relatively poor, and only works in very low-noise conditions. I was looking in to using dedicated probe mics, such as Etymotic ER-7C (http://www.etymotic.com/pro/er7c-ts.aspx) and whether that might give me a better signal-to-noise ratio, but just wondered if anyone has any experience of this before I buy some.




Sam Jelfs




Sam Jelfs

Research Scientist

Philips Research Laboratories, Eindhoven

Smart Sensing & Analysis


Address : High Tech Campus 36

5656 AE  Eindhoven

The Netherlands

Tel: +31 (0)40 27 42402

e-Mail: sam.jelfs@xxxxxxxxxxx


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