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Judgmentality
on Nov 14, 2018
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Real-Time Noise Suppression Using Deep Learning
> Take An ANC with 0 latency, that stops cancelling noise at 8 khz, and add a 50 usec latency to it, now will stop cancelling noise at ~1.5 khz.
How did you calculate this?
petra
on Nov 14, 2018
[–]
It's an simple explanation of figure 3 here:
https://www.edn.com/design/analog/4458544/2/A-perspective-on...
wrycoder
on Nov 14, 2018
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parent
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If I understand that figure correctly, at 8KHz with no latency one gets 12 dB cancellation. With 50 ms latency, 0 dB. And above that frequency, the cancellation actually makes the noise worse. An analog cutoff filter would be needed.
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How did you calculate this?