In the wonderful world of integrated circuits, filters play a key role in many important functions within a system design. There are many types of filter architectures from which to choose, but one of ...

In a world of digital electronics, there are still necessary functions for analog circuits, especially filters. When real-world signals are digitized or synthesized, for example, analog filters are ...

There comes a time in every electronic designer’s life when, whether they know it or not, they need an analog filter in their design. If you’re coming from a digital background, where everything is ...

Musicians searching for a way to add powerful synthesisers style modulations to the sound of any instrument may be interested in a new versatile analogue Resonant Filter created by Derek Dearden, ...

The design of analog active filters has evolved from manual component selection to sophisticated optimisation frameworks. Classic topologies—Bessel, Butterworth, Chebyshev and elliptic—provide ...

There was a time when any hi-fi worth its salt had a little row of sliders on its front panel, a graphic equalizer. On a hi-fi these arrays of variable gain notch filters were little more than a fancy ...

In previous installments of the AudioFile, we’ve talked about basic PCM audio, which encodes audio into a series of numbers that a computer can play or manipulate. We’ve also discussed the process of ...