PK2301A & PB2301A Quiz 2

What is the file size of a AIFF

• small

• medium

• large

• very small

Which file type is compatible with most platforms

• MP3

• WMA

• FLAC

• WAV

What is bitrate in an audio file?

• number of pixels per second

• number of bits per sample. 

• the amount of data contained in that media per second 

• number of samples per second 

You want to save a space and don't mind a little lower file quality. What do you use?

• Lossy compression

• Uncompressed

• Lossless compression

Who made WMA?

• Moving Pictures Experts Group

• Xiph.org Foundation

• Microsoft

• Apple

Which of the following sound file characteristics doesn't directly affect the size of a digital audio file?

• Sample rate

• Volume

• Sample Size

• Compression

Sample each individual measurement of a sound that is stored as digital information is called what?

• Buffering

• Streaming

• Sampling

• Byting

A __________ is software that compresses a stream of audio or video data for storage or transmission and then decompresses it for playback.

• kalimba

• sequencer

• codec

• container

Uncompressed Audio

• An audio file format which allows the original data to be perfectly reconstructed from compressed data. This makes the file smaller, without loosing quality.

• An audio file format that contains 100% of the audio data. This file will be the highest quality and the largest file size.

• An audio file format that is made by removing some of the audio data. The file size is smaller but the quality will be lower.

Compressed Lossless Audio

• An audio file format which allows the original data to be perfectly reconstructed from compressed data. This makes the file smaller, without loosing quality.

• An audio file format that contains 100% of the audio data. This file will be the highest quality and the largest file size.

• An audio file format that is made by removing some of the audio data. The file size is smaller but the quality will be lower.