| 摘要 |
<p>An acoustical apparatus and assembly for testing noise generated by fabrics. The apparatus includes a revolving holding means (3a) and a stationary holding means (3b) to which a test sample of fabric (7) is attached. One test involves twisting the fabric first in one direction and then in another to generate a crumpling sound. A second test involves revolving the fabric 360° on a revolving holding means around a shaft while in contact with a draped fabric to generate a swishing sound. Sounds are measured with noise detection devices. Test procedures are also provided.</p> |
