time variant loudness sone DIN45631/A1

Audio Precision offers a powerful framework - the APX software - for automatic audio measurements. This software supports the following devices: APX555, APX515, APX525, APX585 and the new APX flex for ASIO compatible sound cards.In addition to many built-in measurement functions, the plug-in interface in the 'Sequence Mode' of the APX software enables the modular loading of extended functions.Akulap is powerful audio analysis software that covers a wide range of audio measurement technology.The field of psycho-acoustic measurement technology (Zwicker et. al. invented the basics decades ago) has gained in importance in recent years.Therefore we offer a powerful psycho-acoustic model as a plugin for the APX family, which calculates the time-variant loudness in sone according to DIN45631 / A1   ISO532-1.This plugin fits seamlessly into the Sequence Mode, so that you can use all measurement functions and analysis of the APX software. The loudness calculation is done in the background with Akulap. Beyond Loudness, we offer more advanced psycho-acostics plug-ins with  roughness, sharpness, impulsiveness etc.     Requirements: APX Software from Audio Precision APX audio analyzer Package includes: Psycho-acoustics plugin USB key user manual test signals   you can find an video showing the APX plugins in action here: https://www.youtube.com/watch?v=7H2QwUDBfp8     Price on request