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Topic: Comparison of amplitude (Read 1 time) previous topic - next topic

Mar 03, 2011, 08:34 am Last Edit: Mar 03, 2011, 01:38 pm by lxhfirenking Reason: 1
Hello,

Firstly, I am rookie.
I am doing a project that needs to collect sound signal from multiple microphones and figure out which one has the greatest amplitude.

The microphones I am using are surface-mount microphones and I've built the necessary amplifier circuits...now I need a shield/circuit that can produce the envelope of the wave form and change the +/- output voltage to a 0 to 5V output...

Some ppl recommend me to use the Shifty VU shield, but the problem is the output of the microphone is a pin output, not a audio jacket...

Does anyone has any better recommendation for shields/circuit?



Grumpy_Mike

Quote
but the problem is the output of the microphone is a pin output, not a audio jack


Why is this a problem? Just get a jack plug and wire it to your microphone.

You can see about envelope generators here:-

http://www.andregoncalves.info/ag_blog/?page_id=61

To Mike

Thanks for your advice...

I also want to know whether arduino+Shifty VU is able to handle 6 different analogue input simultaneously..

According to here
http://docs.macetech.com/doku.php/shifty_vu_shield
One shield is only able to handle 2 analogue input (2 channels)

Is it possible to use multiple Shifty VU shields? If so, how should I do it? 

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