Title :
Design of a microphone array for headsets
Author :
Laugesen, Seren ; Rasmussen, Karsten Bo ; Christiansen, Torben
Author_Institution :
Oticon Res. Centre, Snekkersten, Denmark
Abstract :
The paper concerns the design of fixed-weight array processing for a short-boom headset. The fact that the microphone array is placed near the head and in the near-field of the mouth are taken into account. Part of the work is a simulation study based on a numerical model of the sound field around a sphere, which models the human head. These results are compared with measurements taken on a B&K HATS, with good agreement.
Keywords :
FIR filters; acoustic signal processing; array signal processing; audio signal processing; digital filters; microphones; telephone sets; digital FIR filter; digital filter; fixed-weight array processing; microphone array; mouth near-field; short-boom headset; sound field; telephone headsets; Acoustic noise; Acoustic sensors; Array signal processing; Finite impulse response filter; Frequency; Humans; Microphone arrays; Mouth; Numerical models; Signal to noise ratio;
Conference_Titel :
Applications of Signal Processing to Audio and Acoustics, 2003 IEEE Workshop on.
Print_ISBN :
0-7803-7850-4
DOI :
10.1109/ASPAA.2003.1285803
