MPEG-3 and MPEG - 4 Flashcards
1
Q
What does MPEG-3 use to convert music and other sounds into an MP3 file format?
A
- technology known as audio compression
2
Q
What are MP3 files used in?
A
- MP3 players, computers or mobile phones
3
Q
How are the CD files converted?
A
- they are converted using file compression software
4
Q
How can an original music file be reduced by 90% whilst retaining most of the music quality?
A
- by using file compression algorithms which use perceptual music shaping
5
Q
What does perceptual music shaping do?
A
- removes sounds that the human ear can’t hear properly
6
Q
What do MP3 files use since part of the original file is lost following the compression algorithm?
A
- lossy format
7
Q
What can be stored in the MP4 format?
A
- music, videos, photos and animation
8
Q
Videos could be streamed over the internet using the MP4 format without losing…
A
- any real discernable quality
