Bandpass Filter for a Vocoder?high order filter??? advice!!! - Electronic Circuits Projects Diagrams Free

damenace · 26th June 2003, 07:12 AM

I need help on a high order bandpass filter.
It is to be used with a vocoder. It needs to be high order so that the frequency drop off at the bandpass cut of point has a very large slope. we have to be able to fit 8 ranges within 100-1000 Hz. And to do this efectivly the passband region of each filter should not overlap eachother.

I was thinking a dualopamp with a bunch of capacitors?? i just need help with a basic layout for 1 filter, and the numerical computation for each band will easily follow.

Basicly we are building a 8 Band Vocoder and im thining of range of 200-1200??? Basicly just a normal male voice at normal speech??

damenace · 27th June 2003, 05:54 AM

anyone?
I could always buy a premade filter......anyone ahve any suggestions?????

**kinjalgp** · 27th June 2003, 09:59 AM

To design a filter of required bandwidth and slope, use this software called "Filter Wiz Pro". Demo is available from http://www.schematica.com/filter_wiz_files/FWPRO.htm

It will also generate schematic for you!

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26th June 2003, 07:12 AM	#1
damenace	Bandpass Filter for a Vocoder?high order filter??? advice!!! I need help on a high order bandpass filter. It is to be used with a vocoder. It needs to be high order so that the frequency drop off at the bandpass cut of point has a very large slope. we have to be able to fit 8 ranges within 100-1000 Hz. And to do this efectivly the passband region of each filter should not overlap eachother. I was thinking a dualopamp with a bunch of capacitors?? i just need help with a basic layout for 1 filter, and the numerical computation for each band will easily follow. Basicly we are building a 8 Band Vocoder and im thining of range of 200-1200??? Basicly just a normal male voice at normal speech??

27th June 2003, 05:54 AM	#2
damenace	anyone? I could always buy a premade filter......anyone ahve any suggestions?????

27th June 2003, 09:59 AM	#3
kinjalgp	To design a filter of required bandwidth and slope, use this software called "Filter Wiz Pro". Demo is available from http://www.schematica.com/filter_wiz_files/FWPRO.htm It will also generate schematic for you! __________________ "There is no way to peace, peace is the way!"