>>>>>>>>>>>>Dear List,
>>
Just a question for those of you with experience using ear probe microphones, do you ever hear the heartbeat? Iâve 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.
>>
Thanks
>>
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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