20 15 10 05 00 05 -15 () 20 20 15 15 10 10 05 os 00 00 -05 -05 -10 -10 -15 -01 00 01 -01 (ii) (iii) Figure Q2 1) Original Signal, (ii) Sampled Signal 1 and (ii) Sampled Signal 2 (a) Differentiate the effect that happened after the blue signal with frequency maximum max = 80kHz is sampled with two different sampling frequencies f, illustrated by the red signal in both Figure Q2 (ii) and (iii) above. (You may provide the cause of the effect for the two figures in your answer) [4 marks] (b) Amanda wanted to send an audio file to her sibling Rizqiah. Suggest the minimum internet speed which she needs for sending an audio file with 159 seconds of duration from A to B in 8.97 seconds and what is the size of the audio file? (44.1 kHz of sampling rate, 16 bit-depth, and stereo channel) [3 marks] 20 15 10 05 00 05 -15 () 20 20 15 15 10 10 05 os 00 00 -05 -05 -10 -10 -15 -01 00 01 -01 (ii) (iii) Figure Q2 1) Original Signal, (ii) Sampled Signal 1 and (ii) Sampled Signal 2 (a) Differentiate the effect that happened after the blue signal with frequency maximum max = 80kHz is sampled with two different sampling frequencies f, illustrated by the red signal in both Figure Q2 (ii) and (iii) above. (You may provide the cause of the effect for the two figures in your answer) [4 marks] (b) Amanda wanted to send an audio file to her sibling Rizqiah. Suggest the minimum internet speed which she needs for sending an audio file with 159 seconds of duration from A to B in 8.97 seconds and what is the size of the audio file? (44.1 kHz of sampling rate, 16 bit-depth, and stereo channel) [3 marks]