data representation - storing sound

Microphones record sound in what format?

• Analogue

• Digital

• MP3

• H264

Computers need sound to be stored in..

• Digital (binary)

• Analogue

• ASCII

• Python

The process of converting from analogue to digital is known as...

• Sampling

• Recording

• Importing

• Compressing

The lower the sample rate the larger the file size...

• True

• False

What is the term used to describe how many samples you take?

• Sampling frequency (sample rate)

• Bit rate

• Sample size

• Sampling intervals

Sampling frequency is measured in...

• Hertz (Hz)

• Beats per second (bps)

• Pixels per inch (PPI)

• Gigabytes (GB)

What is the result of increasing the sampling frequency?

• Better quality sound

• Lower quality sound

What is the result of increasing the sample size?

• The digital file will pick up more sounds

• The digital file will pick up less sounds

Which term is used to describe the number of bits available for each sample?

• Sample size

• Sampling intervals

• Sampling frequency

• Bit rate

Bit rate is...

• The gaps between each of the points where the analogue signal is sampled

• How many samples are taken per second

• The number of bits available for each sample

• The number of bits used per second of audio