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Bbit 432:Multimedia Systems Question Paper

Bbit 432:Multimedia Systems

Course:Computer Science

Institution: Kenya Methodist University question papers

Exam Year:2012

KENYA METHODIST UNIVERSITY

END OF 3''RD ''TRIMESTER 2012 (EVENING) EXAMINATIONS
FACULTY : COMPUTING AND INFORMATICS
DEPARTMENT : COMPUTER SCIENCE AND BUSINESS
INFORMATION
UNIT CODE : CISY 322/BBIT 432
UNIT TITLE : MULTIMEDIA SYSTEMS
TIME : 2 HOURS

Instructions:

Answer question one and any other two questions.

Question One

Briefly explain your understanding of the following terms:

(10 marks)

Multimedia
Hypermedia
Hypertext
Multimedia applications
Storyboarding

Differentiate between the following multimedia terms.

(10 marks)

Static and continuous media
Analogue and digital signals
Subtractive and granular synthesis
Dynamic range and bandwidth
Header chunk and track chunk (in MIDI files)

Briefly explain the three types of MIDI files.

(6 marks)

Describe the four steps used in a typical sequence operation in image compression.

(4 marks)

Question Two

Briefly describe the four components that make up a multimedia system.

(8 marks)

Answer the following questions by carrying out the necessary calculations, you should show formulae where relevant, explain every step in your calculations.

(12 marks)

Your hard disk has a 256 Mbytes of free space. You are going to record a speech with a sampling rate of 11KHZ, 8 bit resolution and single channel. What is the length of the recording that can be stored in the hard disk? (answer in secs)
A multimedia presentation has 30 minutes of CD-quality digital audio in wav files. What is the storage required for these files?
In a teleconferencing system, a network connection having a bandwidth of 100k bytes per second is allocated to duplex audio link. What is the maximum sampling rate and resolution in which uncompressed audio data can be transmitted in real time?
You are developing a network voice communication program. It uses the internet to connect tworemote users and allow them to talk to each other in real time. What is the most appropriate sampling rate for recording their voice?

Question Three

There are a number of graphic/image editing tools in the market today. Describe why you would choose each of the following image/graphic editing software.

(15 marks)

Adobe Photoshop
Adobe premier
Micro media freehand
Video shop
GIMP

Briefly explain five desirable features of a multimedia system.

(5 marks)

Question Four

There are basically four factors that influence the performance of I/O devices when running interactive multimedia content. Briefly describe the four factors.

(4 marks)

Optical storage has recently become very popular in delivery of interactive multimedia content. Discuss the two major optical storage techniques explaining how they have influenced the multimedia industry. Your discussion should include, but not limited to issues such as file formats, capacity, quality, basic features, compatibility, types of media it can store. The two major optical storage technologies are

(16 marks)

CD
DVD

Bbit 432:Multimedia Systems Question Paper

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