Highlands Y9: Intro to Data Rep - HW5 2024

What is the primary purpose of sound sampling?

• To reduce noise in sound waves

• To amplify sound waves

• To convert analog sound waves into digital form

• To convert digital sound waves into analog form

What device is used to convert analog sound waves into digital data?

• Digital to Analog Converter (DAC)

• Microphone

• Analog to Digital Converter (ADC)

• Speaker

What is the first step in sound sampling?

• Quantizing the sound wave

• Converting the sound wave to binary

• Measuring the amplitude at fixed intervals

• Storing the sound wave in digital form

Why are measurements taken at fixed and regular intervals in sound sampling?

• To reduce the file size

• To convert the sound wave to analog form

• To ensure the sound wave is amplified

• To accurately represent the sound wave

How does increasing the sample resolution affect the sound file?

• It reduces the number of bits used per sample

• It decreases the sample rate

• It makes the file size smaller

• It makes the sound a closer representation of the original

What happens if the sample rate is increased?

• The file size gets smaller

• The sound becomes a closer representation of the original

• The number of bits per sample decreases

• The sound quality worsens

What is the effect of decreasing the sample resolution?

• The file size gets larger

• The sample rate increases

• The sound becomes a closer representation of the original

• The file size gets smaller