Cochin University of Science and Techology (CUST) 2006-8th Sem B.Tech Electronics and Communications Engineering (Supplementary) , tember , EC 801 Audio And Video Engineering - Question Paper

BT(C) - VIII -($) 06- 039(C)

B. Tech, Degree VIII Semester (Supplementary) Examination,

September 2006

EC 801 AUDIO AND VIDEO ENGINEERING

(2002 Admissions)

Time: 3 Hours    Maximum Marks: 100

I    a) Explain, with cross sectional vtew, the speech production mechanism of a

human being.    (10)

b) Describe, with neccssary figures, any two types of microphones    (10)

OR

II    a) Explain the discrete time model of human speech production system.    (12) b) Distinguish between loud nets and pitch.    (1)

III    a) Explain the terms - adaptive quantization and vector quantization.    (12) b) With diagram, explain the working of a magnetic tape recorder. (8)

OR

IV    Explain the coding methods subband coding and linear predictive coding.

Discuss the merits and demerits of both.    (20)

V    a) With diagram, explain the working of any ooe television camera tube.    (12) b) What is inter Laced scanning? Describe the parameters to be considered for selecting

the number of scanning lines.    (9)

OR

VI    ) Describe the high level and low level modulation schcmcs in TV transmission.

Compare both.    (12)

b) Write short notes on VSB transmission in television.    (I)

VII    a) Explain the additive mixing and subtractive mixing of prima colors.    (4) b) With block diagrams, explain the working of NTSC encoder and decoder. (8 ft * )6>

OR

vni a) Explain the luminance and chrominance signals.    (6)