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Methods for calculating loudness
  • ISO 532-2-2017 pdf free.Acoustics一Methods for calculating loudness一Part 2:Moore-Glasberg method. The method described in the main part of this document specifies a method for calculating loudness and loudness level based on the Moore-Glasberg procedure. The procedure involves a sequence of stages. Each stage is described below. However, it is envisaged that those wishing to calculate loudness using this procedure will use the computer program (see Annex C) provided with this document that implements the described procedure. It is not expected that the procedure will be implemented by hand. Such computations would be very time consuming. The source code provided in Annex C gives an example of the implementation of the method. Other implementations using different software are possible. NOTE 1 The computational procedure described In this document is an updated version of procedures published earlier elsewhereli.-i-iil. NOTE 2 Uncertainties are addressed in Clause 9. 5 Specifications of signals 5.1 General The spectrum of the signal whose loudness is to be determined shall be specified at each ear. The spectrum can be specified exactly using the methods described in £2. 53 and £4 for the case of a complex tone, noise consisting of bands of pink or white noise of defined width,…