DocumentCode :
3056251
Title :
The perception of spectrally shaped additive noise in speech
Author :
McDermot, Barbara J. ; Scagliola, Carlo
Author_Institution :
Bell Telephone Laboratories, Murray Hill, NJ, USA
Volume :
7
fYear :
1982
fDate :
30072
Firstpage :
196
Lastpage :
198
Abstract :
The spectrum of additive noise was systematically varied according to three variables: correspondance between the noise and speech spectrum (4 levels), equal weighting or weighting according to the width of the Articulation Index bands, SNR of the output signal (2 levels). All combinations of these 16 noise conditions were added to high quality speech sampled at 8kHz, and presented to listeners for judgment. Difference judgments were analyzed by a multidimensional scaling procedure to gain information about the number and nature of the important subjective variables. Overall quality ratings were obtained as a measure of the improvement in perceived quality due to the spectral shaping of the additive noise. Several objective measures were also tested for their sensitivity in predicting the overall quality ratings.
Keywords :
Acoustic noise; Additive noise; Frequency; Noise measurement; Noise shaping; Shape; Signal to noise ratio; Speech enhancement; Testing; White noise;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '82.
Type :
conf
DOI :
10.1109/ICASSP.1982.1171724
Filename :
1171724
Link To Document :
بازگشت