A COMPUTER PROGRAM SIMULATING POST-MASKING FOR APPLICATIONS IN SOUND ANALYSTS SYSTEMS

摘要

If loudness of temporally variable sounds is considered the specific loudness values have to be treated astime-dependant values. A temporal resolution of 2 ms can be chosen for practical applications. In digitalsound analysis systems post-masking effects must be taken into account. Post-masking depends stronglyon duration. With the above described digital realization a procedure is available to account for thisduration dependant decay of post-masking. For durations of 10 ms to 200 ms the behaviour of the algorithmfits the published data of post-masking sufficiently. Therefore this algorithm may be applied inloudness meters or other pre-processing devices.