One knob EQ

    May 14 2019 | 8:13 am
    Hi Guys,
    This is so embarrassing. I'm working on a project, where I'd like to implement a single dial EQ. Basically, it is a "treble" control, just like in those old hi-fi amps. A single knob to cut or add more bass and to cut or add more highs, at the same time. I've done something with a filtergraphs and cascades and such, but it is sooo overkill. Is there a more simple, more elegant way to do this?

    • May 14 2019 | 11:37 pm
      simpler? i think it is still a lot too simple. i am sure there should be a quadratic or logarithmic distortion in the parameter mapping.
    • May 15 2019 | 1:21 pm
      It is, unfortunately. It shouldn't be accurate or ... well .. proper. This one will sit at the end of a stompox style distortion thing, it should be a "TONE" control ...
    • May 15 2019 | 2:02 pm
      For that purpose 6 db will be quite unefficient. You could use cross~ and mix the output to get desired effect in a simple way.
    • May 17 2019 | 4:49 pm
      you can get closer to those tone knobs on guitar amps if you go + or - on one single high-shelf filter(you don't need the lo-shelf in your patch), with a center freq somewhere around 2k(around 1k or even 800 if you want something more extreme). and as SourceAudio mentioned: needs to dip or raise more than 6dB.