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Environmental and Technical Problems in Acoustical Scaled Models

Using acoustical scaled models provides numerous theoretical and practical issues. After formulating theoretical requirements regarding the sound field in a given object, one should also conduct considerable amount of measurements of acoustical properties of materials to be used in a construction or the sound source. The paper discusses difficulties met during performing acoustical measurements in a scaled reverberation chamber in Technical Acoustics Laboratory AGH, such as utilized sound sources and the ways of adjusting atmospheric conditions (relative humidity and temperature). The paper particularly concerns the ideas of changing the conditions of measurement environment, sound sources being in use and the frequency range of the performed measurements.

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