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signal splitting, processing and summing together question.
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low_rider



Joined: Dec 14, 2011
Posts: 14
Location: Israel

PostPosted: Mon Jan 21, 2013 8:23 am    Post subject: signal splitting, processing and summing together question. Reply with quote  Mark this post and the followings unread

Here is what I am trying to do:

I have an analog audio signal about 1 to 2Vp-k and I would like to split it into two ranges using low-pass & hi-pass filters. This will effectively create a lows and mids signal & treble signal.

I want to process these signals individually and join them together (using a summing amplifier?). For example, I have tried to use 2nd order active filters with Fcut @ 3KHz one is LP and the other HP but it seems like the attenuation I am getting is not enough at the cutting freq.

Also I am wondering how will the joined signal look like? I did some simulation and it added up very nicely, however I am afraid it won't be so simple in real life.

Any suggestion about what is a good way to get this done?
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