Wah Wah Filter

The definition for the wah-wah effect, according to Erickson in 1975, is that the effect is produced by periodically bringing in and out of play treble frequencies while a note is sustained. Therefore, the effect is a type of spectral glide, a “modification of...

Cutoff Filters

  What is a Cutoff Filter?   A filter generally refers to a device that can remove something out of any given thing. In the audio world a filter does a very similar job. A cutoff filter is a processor, which can attenuate or completely remove certain partials out of...
Understanding Phase and Phasing

Understanding Phase and Phasing

Phase (sometimes called “position”) is the orientation of a cyclical waveform in time, relative to a another cyclical waveform.   Here is an analogy on a less abstract level… If I were to start singing Twinkle Twinkle Little Star from the lyrics “up above...