Audio Files

What does an analog to digital converter do?

• Reduces the file size of audio recordings

• Converts digital sound into analog sound

• Changes analog sound into numerical data

• Increases the amplitude of sound waves

What is the process of measuring the amplitude at regular intervals called?

• Bit depth measurement

• Quantization

• Compression

• Sampling

What is the typical sample rate for music recordings?

• 88,200 Hertz

• 96,000 Hertz

• 44,100 Hertz

• 22,050 Hertz

How does increasing the bit depth affect the audio recording?

• Reduces the sample rate

• Decreases the file size

• Increases the range of numbers and precision

• Lowers the precision

What is the consequence of using a larger bit depth?

• Increased stated usage per sample

• Decreased compatibility with devices

• Lower audio quality

• Smaller file size

Which format is known for being a lossy compressed format popular for streaming?

• MP3

• AAC

• FLAC

• WAV

What is the advantage of the FLAC format?

• It is uncompressed

• It offers the smallest file sizes

• It retains audio quality while reducing file sizes

• It is the most compatible format

Which format is an apple specific equivalent to MP3?

• OG Vorbis

• WAV

• FLAC

• AAC

What does the sample rate of an audio recording indicate?

• The compression level of the audio file

• The total duration of the audio recording

• The number of samples taken per second

• The number of bits used per sample