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Altera_Forum's avatar
Altera_Forum
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16 years ago

Pre-Emphasis with IIR Filter

Hello! I want to do a classic Pre-Emphasis with VHDL. Normally this is implemented with an IIR-Filter. I tried to do this in VHDL with the following formula I found in the web: y(i)=x(i)-(x(i-1...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

It is to do with my first assumption about y(1) = 0

If you put y(1) = x(1) it gets ok ...sorry

So now your algorithm is correct after all. Let us check your implementation...