Irelephant@lemm.ee to Asklemmy@lemmy.mlEnglish · 3 months agoWhat popular product do you think is modern day snakeoil?message-squaremessage-square527fedilinkarrow-up11arrow-down10
arrow-up11arrow-down1message-squareWhat popular product do you think is modern day snakeoil?Irelephant@lemm.ee to Asklemmy@lemmy.mlEnglish · 3 months agomessage-square527fedilink
minus-squareHugin@lemmy.worldlinkfedilinkarrow-up0·3 months agoFrequency folding is the term used in DSP no need for quotes. The Nyquist frequency is commonly referred to as the folding frequency. And yes frequencies above the Nyquist folding frequency alias into lower frequencies. A simple low pass filter prevents this however. Properly filtered digital sampling produced a more accurate reproduction of the frequency range with less distortion then an analog signal.
Frequency folding is the term used in DSP no need for quotes. The Nyquist frequency is commonly referred to as the folding frequency.
And yes frequencies above the Nyquist folding frequency alias into lower frequencies. A simple low pass filter prevents this however.
Properly filtered digital sampling produced a more accurate reproduction of the frequency range with less distortion then an analog signal.