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In order to improve the sound environment in workshop, the quality of machining noise which is produced in honing operation is investigated using Semantic Differential. The noises produced in milling and forging operations are used to compare with the honing sound. The main results obtained are follows. The coordinate of semantic space is derived using factor analysis : its first factor, “powerful” factor; and second factor, “metallic” factor. But it is not easy to find an appropriate index for third factor of “pleasant” in these machining sounds. These three sounds have high loadings on “powerful” factor, and the impression of “powerful” factor increases in the order of honing, forging and milling. Forging and honing sounds have high loadings on “metallic” factor, but the milling sound has low loadings on it. As the sound pressure increases, the impression of “powerful” and “metallic” factors becomes stronger

Investigation on Honing Sound. Evaluation of Timbre with Semantic Differential.