STUPIDSID
SPPU Electronics and Telecom Engineering (Semester 8)
Speech & Audio Signal Processing
December 2016
Speech & Audio Signal Processing
December 2016
Solve any one question Q.1(a, b) and Q.2(a, b)
1(a)
Explain voiced and uninvoiced speech signal? Explain its significance in speech processing.
6 M
1(b)
What is Pitch of speech signal? What is formant frequencies in speech signal
4 M
2(a)
Explain LTV model of speech signal.
5 M
2(b)
Explain the concept of critical band and auditory systems as a fiter bank?
5 M
Solve any one question Q.3(a, b) and Q.4(a, b)
3(a)
What is spectrogram? What are their types? Explain its significance and applications in speech processing.
5 M
3(b)
Explain Mel Scale and Bark Scale.
5 M
4(a)
How Short time energy, short time average meagnitude short time average zero crossing rate is useful in speech processing?
4 M
4(b)
Explain the concept of Spectral entropy and Spectral Roll-off.
6 M
Solve any one question Q.5(a, b) and Q.6(a, b)
5(a)
Explain basic principal of Linear Predictive Analysis? Explain autocorrelation method for format analysis.
8 M
5(b)
Explain the Cholesky Decomposition method for solution of LPC equations.
8 M
6(a)
Explain frequency domain interpretation of LP analysis?
8 M
6(b)
Explain Durbin algorithm LPC analysis.
8 M
Solve any one question Q.7(a, b) and Q.8(a, b)
7(a)
Explain how pitch is estimated using cesptrum analysis?
8 M
7(b)
Explain in detail estimation of formant and pitch parameters using cepstrum.
8 M
8(a)
What is cepstrum? Explain in detail computation of Mel Frequency Cepstral Coefficient (MFCC).
8 M
8(b)
What is long term complex cepstrum? What is short term complex cepstrum? Explain the properties of the complex cepstrum.
8 M
Solve any one question Q.9(a,b) and Q.10(a,b,c)
9(a)
Explain in detail automatic speech recognition system with suitable example
9 M
9(b)
What is the difference between speaker identification and speaker verification? What are the features used for speaker recognition / verification system and how?
9 M
10(a)
What is DTW? Explain with suitable example.
4 M
10(b)
What are the techniques od speech enhancement spectral subtraction method?
10 M
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