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  1. C

    5 second delay System

    hi all, I want to make a circuit that will take in Stereo audio from a system, then delay it by 5seconds and play it on a speaker through an amp. Any ideas? Thanks. Nialll
  2. C

    PCM Speech CODEC

    Hi All, I'm currently doing a project for college, Design of Switched capacitor filters for a PCM Speech CODEC.  I am to use a biphase clock to drive the switches on the capacitor. This is where my problems begin. I do not know how to design a biphase clock, I was told to use a johnson counter...
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