MATLAB: Gating a channel

gatingsound wve

I am looking for code to gate a sound channel in matlab. I am using a file of data points on a sound wave that I will assign time points to, rectify, envelope, and smooth. Then I need to gate the channel telling the program anything above value "x" is 1 and anything below "x" is 0 so I end up with a square pulse that I can measure. This is the step I am stuck on any help is greatly appreciated.
Thanks! Sonia

Best Answer

uint8(value > x)
Question: what do you want your output to be if the value is exactly x ?
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