Those cheap Sennheiser earplugs. I was talking when I had those in, something funny about how that sounded, made me think about in-ear mikes. Sennheiser makes very good mikes anyways.. So.. connected the earplugs to the sound card mike in, stuck those in my ears, and spoke some text. Recorded it is mp3: rec -d /dev/dsp -r 44100 -c 2 -s w -t raw - | lame -r -s 44.1 -m s -x - mike.mp3 Used the mike boost on the sound card... One would expect some hum or some noise, but no, good recording. So here is your secret CIA like (from the movies of course) in-ear communication, the same one the son of a Bush always used if he had to say something so he would not be too lost for words, one as speaker (one ear), and the other as microphone (the other ear). No acoustic feedback, although that assumes a brain or some mass in-between the ears. If it sounds hollow you know where the problem is. But you guys of course already knew that,
An interesting observation
Sep 13, 2009
7 Replies
mike.mp3
communication,
would not be too lost for words,
the ears.
I have no idea what you're talking about !
Jan, go take a nap, then have some coffee and give it another try. Never mind, just take a nap and put some time in on your Mantis replacement project. Let us know what you learn. Mike
Something similar has been available to amateur radio enthusiasts/consumers for many years.
Chris
I wonder how well that works if some one has a cold and their nasal passages are blocked to the ears! At least that is the way I understand the human anatomy. Maybe they should be home resting and it wouldn't matter any way! ;)
mike.mp3
communication,
would not be too lost for words,
the ears.
Hello?.....Hello?.....all i hear are echos.... ((what does the sound of dripping water mean?))
Much of the sound is transferred through the head bones to the ear.
Also throat microphones
formatting link
positioned on your neck have been used since WWII by fighter pilots and in other environment with high ambient noise level.
Clearly, the microphone does not have to be in the air outside your mouth in order to extract usable information from what you are saying.
Paul
A memory leak...
You can\'t have a sense of humor, if you have no sense!
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