Technical Annex to PPR490 The acoustic durability of ...
2018-5-4u2002·u2002TRL 7 PPR490 Annex B The effect of using single/multiple free-field measurements on prEN 1793-6 results The method prescribed in Part 5 for performing sound insulation measurements is based on the use of a single microphone at a single position for free-field measurements (i.e.
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