DocumentCode :
2785119
Title :
An efficient method for the removal of impulse noise from speech and audio signals
Author :
Chandra, Charu ; Moore, Michael S. ; Mitra, Sanjit
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA
Volume :
4
fYear :
1998
fDate :
31 May-3 Jun 1998
Firstpage :
206
Abstract :
A computationally efficient algorithm is proposed to remove noise impulses from speech and audio signals while retaining its features and tonal quality. The proposed method is based on the SD-ROM (Signal Dependent Rank Order Mean) algorithm. This technique has successfully been used to remove impulse noise from images. It has the advantage of being relatively fast, simple and robust. The algorithm estimates the likelihood the sample under inspection is corrupt relative to the neighboring samples and replaces a sample detected as corrupted by a value based on the neighboring samples. This algorithm also has the advantage of being `configurable´ to the type of noise impulses in the sample, as the thresholds used to detect noise impulses can be varied to suit the signal
Keywords :
audio signals; estimation theory; interference suppression; probability; speech processing; SD-ROM; audio signals; computationally efficient algorithm; impulse noise; neighboring samples; noise impulses; signal dependent rank order mean algorithm; speech signals; Dynamic range; Error probability; Filtering algorithms; Filters; Frequency; Inspection; Noise level; Noise robustness; Random processes; Speech enhancement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on
Conference_Location :
Monterey, CA
Print_ISBN :
0-7803-4455-3
Type :
conf
DOI :
10.1109/ISCAS.1998.698795
Filename :
698795
Link To Document :
بازگشت