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  • Last update: 5 years ago
  • Total downloads: 39
  • Operating system: Linux, Mac OS X, Win All, BSD, Solaris
  • Publisher: Victor Espinoza
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scripts default iconNeuLoud (Calculates Loudness Level) (Scripts) Publisher's description

Calculates Loudness Level according to ISO-226:2003 using Artificial Neural Networks for any SPL.

Calculates Loudness Level according to ISO-226:2003 using Artificial Neural Networks for any SPL.

This function is an update of work of:
VГ­ctor Espinoza, Rodolfo Venegas, Sergio Floody
"Modelo de Sonoridad Utilizando Redes Neuronales" (Loudness Model using Neural Networks)
V Congreso Iberoamericano de AcГєstica FIA 2006
Santiago, Chile, 25-28 Octubre 2006
f : frecuency [Hz]
NPS : Sound Pressure Level [dB]
L : Loudness Level [Fon]
This script is free for academic use of the source is quoted
It prohibits commercial use of this function
Thanks to Rodolfo Venegas by the original version of script

VГ­ctor Espinoza


Copy "NeuLoud.m" and "RedLoud.mat" to a new directory (NeuLoud2011, for example), and add folder with menu File-Set Path-add folder, select NeuLoud2011 folder, click save, close the "Set path window", and check install using function in Matlab command window.

Optionally, i have attached an object "CFIT", of the isophonic curve "0 fon" in the file RedLoud.mat to avoid values outside the range of the function NeuLoud as IS0-226: 2003

To find the SPL of the curve "0 fon" use
SPL_0_fon = zero (f);

where f is the frequency in Hertz

In Matlab must be installed the toolboxes Neural Network and Curve Fitting.

Thanks for your interest.
VГ­ctor Espinoza

System Requirements:

No special requirements.
Program Release Status: Minor Update
Program Install Support: Install and Uninstall

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