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Digital Filtering - an overview | ScienceDirect Topics
https://www.sciencedirect.com/topics/engineering/digital-filtering#:~:text=Digital%20filtering%20can%20improve%20audio%20signals%20in%20many,frequencies%20that%20are%20mainly%20noise%20%28see%20Chapter%2017%29.
Audio Signal Filtering - Project Rhea
https://www.projectrhea.org/rhea/index.php/Audio_Signal_Filtering
Audio Signal Filtering By Dhruv Lamba Background Audio signals in the digital world are simply 1-D signals that contain the values of the sampled sound v/s an index, say k. Consider the diaphragm on a microphone, that …
Digital Filtering - an overview | ScienceDirect Topics
https://www.sciencedirect.com/topics/engineering/digital-filtering
Digital filtering can improve audio signals in many ways. For instance, Wiener filtering can be used to separate frequencies that are mainly signal, …
Audio Signal Filtering - Synaptic Sound
https://www.synapticsound.com/audio-signal-filtering/
A filter in electrical engineering, communications, audio production, and signal processing is a device that removes, filters out, and/or attenuates specific frequencies from a signal. A Quick Example Let’s look at a practical example that we see very often in the audio and music production world: the high-pass filter.
filtering DC from digital audio signal
https://www.mathworks.com/matlabcentral/answers/439357-filtering-dc-from-digital-audio-signal
To filter D-C from any signal, simply subtract the mean value of the signal from the signal. The mean and minus (binary subtraction) functions will work with int8 arguments. You could also use a highpass filter with a very low frequency (1 Hz or less) cutoff.
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