Sound & Compression Quiz

What is the term used to describe the number of samples taken per second in sound digitization?

• Bit depth

• Sample rate

• Amplitude

• Frequency

Which of the following is a method to reduce the size of a digital file?

• Amplification

• Compression

• Expansion

• Sampling

What does increasing the sample rate in sound digitization affect?

• The color of the sound

• The pitch of the sound

• The quality of the sound

• The speed of the sound

What is the effect of increasing sample resolution in audio recording?

• Improves the dynamic range

• Increases the volume

• Speeds up the playback

• Changes the pitch

Which of the following is a lossy compression format for audio files?

• AAC

• MP3

• FLAC

• WAV

What does the term 'sample rate' refer to in digital audio?

• The number of samples per second

• The frequency of the sound wave

• The number of bits used per sample

• The amount of data processed per second

What is the main difference between lossy and lossless compression?

• Lossy compression reduces file size without losing any data.

• Lossless compression reduces file size by removing some data.

• Lossy compression reduces file size by removing some data.

• Lossless compression increases file size by adding data.

Which file format is typically associated with lossy compression?

• .zip

• .png

• .jpg

• .pdf

What is a common use for lossless compression?

• Streaming videos online

• Compressing text documents

• Reducing image quality

• Compressing audio file

Why is lossy compression often used for multimedia files?

• It significantly reduces file size while maintaining acceptable quality.

• It increases the file size for better quality.

• It maintains the original quality of the file.

• It is the only method available for compressing multimedia files.