Download AKTU B-Tech 8th Sem 2016-17 NEC043 Speech Processing Question Paper

Download AKTU (Dr. A.P.J. Abdul Kalam Technical University (AKTU), formerly Uttar Pradesh Technical University (UPTU) B-Tech 8th Semester (Eight Semester) 2016-17 NEC043 Speech Processing Question Paper

Printed Pages = 1 R0" N M?klstdaniceichU?Lmivwfirsmanwm
T ime .'
Note .'
e-P?QoerP-ocrm
1??
.390er
B.TECH.
THEORY EXAMINATION (SEM?VIII) 2016-17
SPEECH PROCESSING
3 Hours Max. Marks : 100
Be precise in your answer. In case ofnumericalproblem assume data wherever not provided.
SECTION A
Attempt all parts: (10X2=20)
Why is pitch? Explain.
Explain acoustic phonetics.
Why sampling is required? Explain.
Define channel vocoder.
What do you mean by frequency domain? Explain.
Define correlation function with example.
What do you understand by filter? Explain.
Differentiate between speech and silence.
Define convolution with an example.
What is linear predictive coding? Explain.
SECTION B
Attempt any FIVE parts: (10X5=50)
What do you mean by sampling and quantization as related to speech signal? Discuss it with the
help of an example.
Write a note on the digital models for speech signals using example.
Draw the block diagram of a speech processing system and enumerate the applications of speech
processing.
Describe the short term pitch detection using block diagram and also discuss its working with an
example.
Discuss voiced/unvoiced system model for speech signal detection using block diagram.
What are the various speech parameters? Discuss the relation between these parameters.
Write a note on spectrographic display with suitable block diagram.
Describe Homomorphic speech processing with example.
SECTION C
Attempt any TWO questions: (15X2=30)
3
What is speech synthesis? Explain. Discuss the significance of LPC in speech synthesis system.
Derive mathematical expression linear predictor coef?cients.
What is short-time Fourier analysis? Explain the properties of short-tirne Fourier analysis.
Discuss the filter bank interpretation of short-tirne Fourier analysis and synthesis in detail.
Write note on the following:
Autocorrelation method.
. Normalized mean square error.
Formant estimation.
www.FirstRanker.com