Title :
Noise cancelling for microphone arrays
Author :
Meyer, Jens ; Sydow, Carsten
Author_Institution :
Inst. of Telecommun. & Electroacoust., Darmstadt Univ. of Technol., Germany
Abstract :
An application of the noise cancelling method for suppression of noise of a microphone array system is discussed. First an overview of the noise cancelling approach is given. This is followed by a description of the employment of the method in a realized microphone array system. The limiting factors are described and theoretical limits of the noise suppression are derived. Experimental results, which are obtained in a realistic environment, are presented. The results show that depending on the recording situation the noise cancelling approach applied to a microphone array system leads to a significant enhancement of the signal to noise ratio of the array output signal
Keywords :
acoustic noise; acoustic signal processing; acoustic transducer arrays; array signal processing; microphones; noise abatement; SNR; array output signal; conference room; experimental results; microphone array system; microphone arrays; noise cancelling method; noise suppression; recording; signal to noise ratio; Acoustic noise; Additive noise; Employment; Filters; Hardware; Limiting; Microphone arrays; Noise cancellation; Noise reduction; Signal to noise ratio;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on
Conference_Location :
Munich
Print_ISBN :
0-8186-7919-0
DOI :
10.1109/ICASSP.1997.599604
