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Understanding Aliasing In Sound - Music Production Nerds
https://musicproductionnerds.com/understanding-aliasing-in-sound#:~:text=Anti-aliasing%20is%20a%20form%20of%20low-pass%20filters%20that,contents%20that%20we%20have%20no%20way%20of%20detecting.
The Quick Guide to Audio Aliasing | Black Ghost Audio
https://www.blackghostaudio.com/blog/the-quick-guide-to-audio-aliasing
Aliasing is the distortion that occurs when the signal reconstructed from samples is different from the original continuous signal. If the analog signal wasn’t sampled frequently enough over time, there are two forms of aliasing that can take place. Either there will be silence:
audio - Understanding anti aliasing filter - Signal ...
https://dsp.stackexchange.com/questions/54705/understanding-anti-aliasing-filter
So to prevent any aliasing on the downsampled sequence y [ n], you should first apply an anti-aliasing lowpass filter to the input sequence x [ n]. The cutoff frequency of the lowpass filter is given by the downsampling ratio D and is: ω c = π D radians per …
How do Anti-Aliasing-Filters in audio signal processing ...
https://dsp.stackexchange.com/questions/55096/how-do-anti-aliasing-filters-in-audio-signal-processing-work
In the first step, you would up-sample by a factor of 4 by inserting 3 zeros between each sample. Your new sample rate is 192 kHz. Your original spectrum is preserved and you get mirror spectra centered around 48 kHz & 96 kHz.
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