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shmow
11-30-2006, 09:37 AM
I have hooked up a little 8 ohm speaker to my EMIC; I'm happy with what I can do (program wise).
But, it sounds a little tinny.
How do I increase the output so her voice can be·heard "a block away".
If I could make the sound like as if I've hooked it up·my stereo system, but it needs to be
something compact and cheap.
Specifically, is there information on how to amplifiy a nice clear signal?


·

boeboy
12-02-2006, 06:24 AM
here is a nice op amp from jamco

https://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId=10001&catalogId=10001&productId=24539
and the emic docs
and a diagram

Chris Savage
12-02-2006, 08:47 AM
It is recommended to capacitively couple the output of the Emic to the Amplifier, so a capacitor should be between that input and the output of the Emic.· 1uF is a good value for such a task.· Tantalum caps work well for this.

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Chris Savage
Parallax Tech Support