Data representation

Question 4

A sound wave is sampled at intervals of 0.25 seconds. The table below shows the denary amplitude values recorded for five consecutive samples:

Table 1: Sound Sample Data

Sample number	Time (seconds)	Amplitude (Denary Value)
1	0.25	4
2	0.50	12
3	0.75	15
4	1.00	9
5	1.25	3

Complete the representation of this digital sound wave on the grid below by plotting the correct digital steps for each sample point.

A grid with 'Time (s)' on the horizontal X-axis ranging from 0.0 to 1.50 with major gridlines every 0.25 seconds, and 'Amplitude' on the vertical Y-axis ranging from 0 to 15 with gridlines for each integer value.

[3]

Data representation

1 2 3 4 5

Question 4

A sound wave is sampled at intervals of 0.25 seconds. The table below shows the denary amplitude values recorded for five consecutive samples:

Table 1: Sound Sample Data

Sample number	Time (seconds)	Amplitude (Denary Value)
1	0.25	4
2	0.50	12
3	0.75	15
4	1.00	9
5	1.25	3

Complete the representation of this digital sound wave on the grid below by plotting the correct digital steps for each sample point.

A grid with 'Time (s)' on the horizontal X-axis ranging from 0.0 to 1.50 with major gridlines every 0.25 seconds, and 'Amplitude' on the vertical Y-axis ranging from 0 to 15 with gridlines for each integer value.

[3]

Data representation

Question 4

Table 1: Sound Sample Data

Data representation Questions

Data representation

Question 4

Table 1: Sound Sample Data

Data representation Questions