Re: grab raw data from microphone and send it to the output

well, I have a portable microphone and the main source of noise a TV,
which is a few meters behind my back, if i put a microphone (for
example) in the middle, between a laptop and a TV, it may be possible
to compensate for the delay, I repeat, this is all solely for the sake
of experiment.

вс, 7 февр. 2021 г. в 16:45, Greg KH [off-list ref]:

On Sun, Feb 07, 2021 at 04:38:08PM +0300, Ivan Riabtsov wrote:

quoted

I want to experiment with active noise cancellation, i want to receive
a wave from an input device (microphone), invert the wave and send it
to the output device (headphone or speaker). Therefore, I need a
minimum delay.

Then I strongly suggest you look into a much smaller kernel, on a
dedicated tiny microcontroller, as that's what systems that do this
today use.

But if you just want to try it with your laptop, good luck, latencies in
your hardware itself are probably going to prevent this from being
possible.

greg k-h

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