Sound Insulation of Doors—part 1: Prediction Models for Structural and Leak Transmission

Sound Insulation of Doors—part 2: Comparison Between Measurement Results and Predictions

“…A calculation software (SRICALC) was developed based on the theories presented in reference [1]. The programming was accomplished by Visual Basic 3.0 software.…”

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In the "rst part of this paper the prediction models for both structural and leak transmission of doors were presented [1]. In this second part, results are presented for tested models comprising nine steel passage doors and nine timber passage doors.

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Modal-based prediction of sound transmission through slits and openings between rooms

“…In [12,13] airborne (structure path) and slit sound transmission models are applied in order to predict the insulation capacity of doors. This is the balance of two transmission paths: through the door itself and through the slits between the door and the surroundings (typically the floor).…”

“…The laboratory measurements reveal quite good agreement with the models. One of the main conclusions of the work [12,13] is that it is necessary to consider the slit path for a correct characterisation of the doors. The importance of the mounting procedures and quality control is illustrated by [17].…”

Investigation on the Use of Pleko Ceiling Board for Heat Insulator and Sound Proofing Material Applications

“…In the Islamic world great mosques and palaces usually had vaulted or domed ceilings, which were often decorated with mosaic, painted Koranic inscriptions, or carved stalactite ornament that produced a honeycombed effect [4]. Simpler buildings had flat ceilings of beams and plasters which are flat or concave ceilings with artesonado work-delicate coffering richly painted and gilded.…”