Question

3. If audio is added to the above video with the following specifications: · Sample rate of 44.1 kHz · Sampling depth: 16 bits · Dolby digital 5.1 surround sound

a) What is the audio bit rate per second?

b) What is the size of the audio+video file?

Answer 1

SOLUTION-

3) Given,

sample rate = 44.1 KHz

Sampling depth = 16 bits

a) number of samples each second = 44100

size of each sampel = 16 bit

bit rate per second = 16 * 44100 = 705600 bits/s

b) Size of audio file = 44100 * 16 / 1024 / 1024 / 1024 * 140 * 60 = 5.51998615265 Gb

Add it to the size of video you got.

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