Sound Recap

What is the binary place value for the third column?

• 32

• 4

• 8

• 16

What is the binary place value for the fifth column?

• 8

• 16

• 4

• 2

What is the binary place value for the sixth column?

• 4

• 8

• 16

• 32

What is the binary representation of the denary number 63?

• A) 111111

• B) 101010

• C) 100100

• D) 110011

What is Sampling?

• A method of selecting a subset of data from a larger dataset

• A technique for analyzing the entire dataset

• A process of eliminating data

• A way to visualize data

The process of measuring the height of sound waves at regular intervals and recording these measurements as binary numbers is called:

• Sampling

• Quantization

• Encoding

• Modulation

Which of the following is a binary number representation of a sampled sound wave?

• A) 011010

• B) 123456

• C) ABCDEF

• D) 789012

How many times per second do we sample if the rate is 44,100Hz?

• 44,100 times per second

• 22,050 times per second

• 88,200 times per second

• 11,025 times per second