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Interview Question for Software Consultant at National Instruments:
Nov 2, 2011

You have someone speaking in a microphone. How would you record someone's voice? If there was noise, where would you cancel it out on the signal(beginning or end of the wire)? How would a longer wire affect the signal?


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Answers & Comments (2)

Nov 2, 2011

by Interview Candidate:

Connect a microphone to a computer. Use a D/C converter. A longer wire would cause a delay in the signal.
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May 29, 2012

by CR:

No, a longer wire would be more susceptible to noise.
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