chapter 2

Question 1

What is bandwidth?

Answer 1

A measure of how quickly data can be downloaded or uploaded

Bandwidth is often measured in bits per second (bps).

Question 2

Define wave form in the context of sound files.

Answer 2

A graphical display of a sound file

Waveforms represent the amplitude of sound over time.

Question 3

What is sample rate?

Answer 3

The number of samples recorded per second, measured in hertz (Hz)

Common sample rates include 44.1 kHz and 48 kHz.

Question 4

What does it mean for a digital file to be compressed?

Answer 4

A digital file that is stored with effort to make it smaller

Compression can help save storage space and improve download speeds.

Question 5

What characterizes an uncompressed digital file?

Answer 5

A digital file that is stored without any attempt to make it smaller

Uncompressed files retain full audio quality but take up more storage space.

Question 6

What is lossy compression?

Answer 6

A method of reducing the size of a file in a way that reduces the quality of the file’s content

Common formats that use lossy compression include MP3 and JPEG.

Question 7

Define lossless compression.

Answer 7

A method of reducing the size of a file in a way that doesn’t reduce the quality of the file’s content

Formats that use lossless compression include FLAC and PNG.