It's a bit difficult to understand for me... but thank you very much for the explanation.
Maelstorm, I won't use EQ for FXs... just one EQ for the input (microphone) and one for the output (speakers).
I like your gui.eq7.mmb~ (and eq7.mmb~)... I like it because it has switch~ (I love switch~). So, if I don't need to equalize, it doesn't spend process. I think I will use it for the output.
But I don't know which I should use for the input to make one mic sounds like the other (hand mic and headset mic). I had been using the one with lop~s and hip~s and it worked well (for my ear)... What about this technique? (I attached the file... but remember that it is old, it was a subpatch and even it did't use "$0-" variables).
Maelstorm! I don't find eq7.mmb~-help.pd file! It is not in GitHub...
Also, a lot of "expr divide by zero detected" messages appear when I open gui.eq7.mmb~-help.pd.