Over the years controversy has raged back and forth on whether brick wall filters used in digital audio (namely for CD playback systems) exhibit phase shifts in the audio band (20Hz to 20kHz). Audio ...

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 ...

RedShark Technical Editor, Phil Rhodes, reviews Tiffen's new standalone and plug-in package of digital filters that mimics its popular line of optical filters. Many companies produce software for ...