Understanding Digital Sound

What is the process called that converts analogue sound waves into digital format?

• Binary Sound Encoding

• Sound Wave Transformation

• Analogue-to-Digital Conversion

• Digital-to-Analogue Conversion

Which two main factors determine the quality and file size of a digital sound file?

• Compression and Expansion

• Volume and Pitch

• Sample Rate and Bit Depth

• Frequency and Amplitude

What unit is used to measure the sample rate?

• Bits

• Bytes

• Hertz

• Waves

What is the sample rate of a music CD?

• 22,050 Hz

• 44,100 Hz

• 96,000 Hz

• 48,000 Hz

What does a higher sample rate in a digital sound file indicate?

• Simpler sound waves

• Shorter file duration

• Higher quality sound

• Lower quality sound

What does the term 'bit depth' refer to in digital audio?

• The duration of the sound file

• The number of bits stored per sample

• The frequency of the sound wave

• The amplitude of the sound wave

What is the typical bit depth for CD quality audio?

• 8 bits

• 12 bits

• 16 bits

• 24 bits

How does increasing the bit depth affect a digital sound file?

• Decreases file size

• Reduces sound quality

• Shortens the duration of the sound

• Increases sound quality

What does a greater number of bits per sample provide in a sound file?

• A more compressed sound

• A lower quality digital sound

• A shorter playback time

• A closer approximation to the original sound

How is the total size of a sound file calculated?

• Sample rate - Bit depth - Duration

• Sample rate / Bit depth / Duration

• Sample rate x Bit depth x Duration

• Sample rate + Bit depth + Duration