CS Edexcel 2.2c Sound

What does a higher bitrate indicate in terms of audio quality?

• Fewer samples taken

• Longer playback time

• Lower file size

• More detail in sound recording

What is the process of taking 'snippets' of sound at set intervals called?

• Digitisation

• Bitrate

• Sampling

• Compression

A​ (a)   kbps MP3 file will record​ (b)   bits​ per ​ ​ (c)   second

• 320
• 320,000
• 1
• 3,200
• 3,200,000
• 10
• 44,100

A typical sampling rate, used on an audio CD for example is...​ (a)  

• 44.1 kHz
• 48 kHz
• 32 kHz
• 96 kHz

The information about the sound file format is called the

What does increasing the sampling rate do?

• It improves the audio quality

• It reduces the file size

• It lowers the bitrate

• It reduces the audio quality

Name two impacts of increasing the bitrate in a sound file?

• Smaller file size

• Bigger file size

• Better quality

• Poorer quality

The sampling rate of a sound file is a measure of what?

In an ADC, what does the 'A' stand for?

In a DAC, what does the 'D' stand for?