Howtosignalprocessing
- What does a comb filter do?
- What is comb filter in DSP?
- What is a comb filter CRT?
- What can cause comb filtering to occur?
What does a comb filter do?
In signal processing, a comb filter is a filter implemented by adding a delayed version of a signal to itself, causing constructive and destructive interference.
What is comb filter in DSP?
Comb Filters – a filter designed to reject a specific frequency and all its harmonics. From: DSP for Embedded and Real-Time Systems, 2012.
What is a comb filter CRT?
A bandpass filter used to process audio and video signals by mixing the original with a delayed signal. Comb filters allow selected frequencies to pass while blocking their harmonics and all other frequencies.
What can cause comb filtering to occur?
Comb Filtering caused by Sound Reflections
As reflected sounds travel a further distance than the direct sound, they arrive at our ears or at a microphone later. Both signals are identical, but one signal is delayed by a few milliseconds, causing a comb filter, where some frequencies are cancelled and some are summed.
