Page 48 - DCAP303_MULTIMEDIA_SYSTEMS

Multimedia Systems

notes 1. Compress a PCM (Pulse Code Modulation) file to flac and then restore it
again.
2. Convert wma (Windows Media Audio) format to mp3 format.

3.11 review Questions

1. Define different types of audio files format.
2. What do you understand by codec?

3. Define the following terms:
( a) wma (b) vox
( c) mp3 (d) gsm

4. What are the basic sound editing operations that most multimedia procedures needed?
Explain each of them.

5. What are the circumstances in which digital audio file format is preferred?
6. What are the problems we face while getting sound into a computer?
7. Differentiate between voice response devices and voice recognition devices.
8. Describe multimedia system sounds in brief.

9. What are the advantages and disadvantages of MIDI and digital audio?
10. What is DRM? What is the importance of DRM in music?

answers to self assessment
1. (c) 2. (b) 3. (a) 4. (b) 5. (d)
6. (d) 7. (b) 8. (a) 9. (c) 10. (a)

3.12 further reading

Multimedia Making it Work, by Tay Vaughan.

http://www.w3schools.com/html/html_media.asp

42 LoveLy professionaL University