On the following figure the decisional values (0-7) of aquantiser are given.

a.) Draw the output of the quantiser for the drawn voice, if thesamples are taken at the points marked by black circles, and thequantised (output) values are always in the middle of thedecisional intervals!
b.) Can you give a modified characteristic that is better fornoise suppression at low input values?
c.) Can you give a modified characteristic that has lessdecisional intervals but whose precision will be the same for thehuman’s ear?
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