The recursive filter has the advantage of using less hardware, but is more complex to understand.
Once the basic requirements for reproducing sound were in place, the most significant next step was to reproduce to some extent the spatial attributes of sound. Stereophony, using two channels, was the first successful system.
Having looked at how microphones are supposed to work, here we see that what happens in practice isn’t quite the same because the ideal and the actual are somewhat different.
There are two approaches to digital filtering. One is to implement the impulse response directly. The other is to use recursion. Here we look at the direct implementation.
The variable directivity microphone is very popular for studio work. What goes on inside is very clever and not widely appreciated.
Digital filters are ubiquitous. That has happened because they have significant advantages over the technology they widely replaced.
Sitting at home watching the Olympics 400m Women’s hurdles final live on NBC’s 4K HDR channel, home audiences were captivated by the sweat and effort displayed on screen with immersive sound of the runners’ feet hitting the track. Viewers thousands of miles away could be excused for thinking they had the best seat in the Japan National Stadium. The live 4K HDR broadcast of NBC’s primetime show throughout the Games were an extrasensory experience unlike any previous Olympics telecasts.
Though mostly a publicity stunt, Major League Baseball’s Field of Dreams Game live telecast on August 12th proved to be a hit for everyone involved—including the Fox Sports team and production company Game Creek Video—tasked with putting it on.