Multi-channel mono-path periodic signal extraction with global amplitude and phase modulation for music and speech signal analysis

2005 ◽  
Author(s):  
M. Triki ◽  
D.T.M. Slock
Keyword(s):  
Speech Signal ◽  
Phase Modulation ◽  
Signal Analysis ◽  
Signal Extraction ◽  
Periodic Signal

scholarly journals Formant structure of the voice during the intensive acute hypoxia

2003 ◽  
Vol 60 (2) ◽  
pp. 155-159 ◽  
Author(s):  
Jovisa Obrenovic ◽  
Milkica Nesic ◽  
Vladimir Nesic ◽  
Snezana Cekic
Keyword(s):  
Speech Signal ◽  
Signal Analysis ◽  
Acute Hypoxia ◽  
Initial Period ◽  
Formant Frequencies ◽  
Hypoxia Exposure ◽  
Structure Changes ◽  
The Voice ◽  
Reversed Order ◽  
Different Altitudes

The influence of intensive acute hypoxia on the frequency-amplitude formant vocal O characteristics was investigated in this study. Examinees were exposed to the simulated altitudes of 5 500 m and 6 700 m in climabaro chamber and resolved Lotig?s test in the conditions of normoxia, i.e. pronounced the three-digit numbers beginning from 900, but in reversed order. Frequency and intensity values of vocal O (F1, F2, F3 and F4) extracted from the context of the pronunciation of the word eight (osam in Serbian), were measured by spectral speech signal analysis. Changes in frequency values and the intensity of the formants were examined. The obtained results showed that there were no significant changes of the formant frequencies in hypoxia condition compared to normoxia. Though significant changes of formant?s intensities were found compared to normoxia on the cited altitudes. The rise of formants intensities was found at the altitude of 5 500 m. Hypoxia at the altitude of 6 700 m caused the significant fall of the intensities in the initial period, compared to normoxia. The prolonged hypoxia exposure caused the rise of the formant intensities compared to the altitude of 5 500 m. In may be concluded that due to different altitudes, hypoxia causes different effects on the formants structure changes, compared to normoxia.

scholarly journals Design and Implementation of Butterworth, Chebyshev-I and Elliptic Filter for Speech Signal Analysis

2014 ◽  
Vol 98 (7) ◽  
pp. 12-18 ◽  
Author(s):  
Prajoy Podder ◽  
Md. Mehedi Hasan ◽  
Md. Rafiqul Islam ◽  
Mursalin Sayeed
Keyword(s):  
Speech Signal ◽  
Signal Analysis ◽  
Elliptic Filter ◽  
Design And Implementation

Pathological speech signal analysis and classification using empirical mode decomposition

2013 ◽  
Vol 51 (7) ◽  
pp. 811-821 ◽  
Author(s):  
Muhammad Kaleem ◽  
Behnaz Ghoraani ◽  
Aziz Guergachi ◽  
Sridhar Krishnan
Keyword(s):  
Empirical Mode Decomposition ◽  
Speech Signal ◽  
Signal Analysis ◽  
Mode Decomposition

Speech Signal Analysis And Synthesis By Using LPC Technique

2015 ◽  
Vol 22 (1) ◽  
pp. 31-35
Author(s):  
Ravindrbabu A ◽  
◽  
Rambabu A ◽  
Santhoshkumar G
Keyword(s):  
Speech Signal ◽  
Signal Analysis ◽  
Analysis And Synthesis
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