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| звукомер; сонометр | |||
| шумомер; фонометр (аппарат для измерения силы звука) | |||
| звукомер | |||
| сонометр (an instrument used in experimental psychology designed to furnish sounds whose intensities are in known ratios by permitting balls to drop from different heights upon plates of metal or slate) | |||
| фонометр | |||
| электроакустический прибор | |||
| аудиометр | |||
| phonometer: 2 phrases in 2 subjects |
| Electronics | 1 |
| General | 1 |