An Analysis of Hollow-Sounding Tiles using Fast Fourier Transform
Main Article Content
Abstract
Hollow-sounding tile inspection is the required process of construction quality inspection
because hollows under tiles may lead to the defections such as unbonded tiles or broken
tiles in case some objects fall onto the surface. These defects will be causes of accidents
and injuries when those areas were occupied. In order to inspect a hollow-sounding
tile, the inspector must listen to that sound to classify the type of sound which it lacks
any standardize. This paper proposes the audio signal analysis from tiling inspection in
frequency domain to classify a dull or hollow sound. The test tiling area was mocked up
in laboratory for tapping on the tile surface and collecting the audio signal to analysis.
The analysis results indicated the proposed method can identify the dull and hollow
sounding tiles. The accuracy is up to 98.73 %. It can use to be a guideline for developing
the standard tiling inspection method.
Article Details
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