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pre-emphasis filter of 50us

Altera_Forum
Honored Contributor II
‎02-08-2012 09:27 AM
1,810 Views

Hi 

I read a lo about the pre-emphasis filter and now I want to design fir filter for pre-emphasis filter. I want to design it for audio case that after this filter i have to design fm modulator. please please help to find out how can i design fir pre-emphasis filter. I saw a lot that they use the coefficient of [1,-0.975] for fir filter. is it correct? 

pleaseeeeeeeeee help me:confused::( 

regards 

Arash
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Altera_Forum
Honored Contributor II
‎02-08-2012 09:42 AM
998 Views

I'd suggest doing a modeling/simulation with math cad tools (e.g. MatLab) and find the correct coefficients. MatLab has great macros for filter designs. Later You'll just copy those coefficients to FIR compiler.

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Altera_Forum
Honored Contributor II
‎02-08-2012 10:32 AM
998 Views

thanks for reply. will you please explain more. I tried for 3 days and now I am confused and i don`t know what to do. just more help to find the best fir pre-emphasis filter for audio process. 

 

regards
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Altera_Forum
Honored Contributor II
‎02-08-2012 10:55 AM
998 Views

model a filter in matlab first of all.

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