ISO/R 226:1961 PDF
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Normal equal-loudness contours for pure tones and normal threshold of hearing under free field listening conditions
ISO/R 226:1961
Normal equal-loudness contours for pure tones and normal threshold of hearing under free field listening conditions
| Edition | 1961 |
|---|---|
| Published Date | 1961 |
| Published By | ISO/R |
| Page Count | 8 |
