A method for noise suppression by means of spectral subtraction

摘要

PCT No. PCT/SE96/01537 Sec. 371 Date Jul. 18, 1997 Sec. 102(e) Date Jul. 18, 1997 PCT Filed Dec. 19, 1995 PCT Pub. No. WO96/23942 PCT Pub. Date Aug. 8, 1996In a system for jointing together of adjacent pieces of flooring material by means of grooves (3) and tongues (4), at least one of the opposing surfaces on the tongues (4) and the grooves (3) of the pieces display flocked surface portions (10-13). The flocked surface portions (10-13) extend along the tongues (4) and/or the grooves (3) and cover substantially their entire length. The fiber length (9) of the flocked surface portions (10-13) exceeds the difference between the width of the grooves (3) and the thickness of the tongues (4).