Title :
Audibility of pitch-synchronously modulated noise
Author :
Koglund, Jan ; Kleijn, W. Bastiaan ; Hedelin, Per
Author_Institution :
Dept. of Inf. Theory, Chalmers Univ. of Technol., Goteborg, Sweden
Abstract :
This paper examines the audibility of stationary and cyclostationary narrow-band noise added to voiced speech generated by natural and synthetic excitation. Varying the temporal location of noise within a pitch cycle corresponds to varying its phase spectrum. Exploiting this fact, we find that a change of phase is more perceptible for a low-pitched sound than for a high-pitched sound. Our results support the notion that sinusoidal coders work well for female speech and that CELP coders work well for male speech
Keywords :
acoustic noise; frequency modulation; hearing; linear predictive coding; spectral analysis; speech coding; speech processing; synchronisation; CELP coders; audibility; cyclostationary narrow-band noise; female speech; high-pitched sound; low-pitched sound; male speech; natural excitation; phase spectrum; pitch cycle; pitch-synchronously modulated noise; sinusoidal coders; stationary narrow-band noise; synthetic excitation; temporal location; voiced speech; Acoustic noise; Auditory system; Frequency; Low-frequency noise; Narrowband; Noise level; Phase noise; Shape; Speech coding; Speech enhancement;
Conference_Titel :
Speech Coding For Telecommunications Proceeding, 1997, 1997 IEEE Workshop on
Conference_Location :
Pocono Manor, PA
Print_ISBN :
0-7803-4073-6
DOI :
10.1109/SCFT.1997.623891
