ParamMC: "plop" artefact in item

Basic info

• Commit SHA: main
• Platform: all

Bug description

One item has a very audible "plop"/spatial image movement artefact at the beginning. Coming from the usage of ILDs over two frames..

It is very obvious in this item but can be observed also to a lesser extent in others. Having the attack flag set here would help.

The main cause is the fact that normally ILDs in one parameter band are used for two consecutive frames. If in the signal the energy relations between channels belonging to the same TC change without being caught by the TD transient detector this can lead to the observed energy bursts, here the real ILD is considerably lower than the still used one.

Ways to reproduce

(Clear steps or refer to a failing automated test, e.g. with a pipeline link)