Range of Low , band, and high pass frequencies...

Discussion in 'The Projects Forum' started by devgorkha, Dec 17, 2010.

  1. devgorkha

    Thread Starter New Member

    May 17, 2010
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    what group of frequencies are controlled by low,band, and high pass filters in an equalizer? I am thinking to make a audio equalizer. I need range of frequencies for low pass, high pass and band pass.
     
  2. bertus

    Administrator

    Apr 5, 2008
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  3. thatoneguy

    AAC Fanatic!

    Feb 19, 2009
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    Typical "Tone Controls" call "Bass" anything under 250Hz, and "Treble" anything over 2kHz. "Midrange" is 250Hz-2kHz. This is very roughly speaking.

    EQ bands are normally octaves, each frequency roughly doubling, such as 30Hz, 60Hz, 120Hz, 240Hz, 500Hz, 1kHz, 2kHz, 4kHz, 8kHz, 16kHz.

    The bands can be expanded by covering half octaves, or reduced by having each band cover 2 or more octaves.
     
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  4. devgorkha

    Thread Starter New Member

    May 17, 2010
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    there is still one problem; how to control low,mid and high frequency sound output ? Can i connect those three filter in parallel and variable resistance to control gain from each filer?
     
  5. devgorkha

    Thread Starter New Member

    May 17, 2010
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    Does phase shift affect sound quality? In my filter design; i use -40 dB/dec attenuation.
    what is the phase shift in Butterworth filter?
     
  6. beenthere

    Retired Moderator

    Apr 20, 2004
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