Active audio filter calculator amplification bandwidth frequency band pass gain - sengpielaudio
 
Deutsche Version UK-flag s/w - sengpielaudio D-flag - sengpielaudio
 
Calculation: Active Audio Filter
 
Original source (John Owen): http://www.vwlowen.co.uk/java/audio.htm

Type of filter
voltage gain
bandwidth in Hz, only band pass filter
frequency in kHz
value of C2 in nF

R1 = 
R2 = 
R3 = 
C1 = 
C2 = 
C3 = 
            
      

For a sound designer it is strange to cut off high frequencies with a low-pass filter and to cut off
bass frequencies with a high-pass filter. Filters change the sound in special frequency regions.
Filters changing the bass frequencies are application-oriented called low cut filter, bass cut filter, or rumble
filter. Filters changing the treble frequencies are better called treble cut filter, high cut filter, or noise filter.

Notice:
Check the great link to "Captain Universe" -
"Active Filter Calculator - Bandpass with OpAmp Designer"

http://www.captain.at/electronics/active-filter/
Take better his calculation values if you want to build your own amplifier.

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