Comment 4 for bug 1481170

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Daniel Schürmann (daschuer) wrote :

This an issue about the "settled" state of an effect. If an effect deals with infinity, it needs infinity samples to be settled and produce the desired sound. When switching off. It will produce infinity samples after it is switching off.

The EQ filters are such effects. We have also this issue when changing parameters like in https://bugs.launchpad.net/mixxx/+bug/1486863
A solution is to fade new the effect signal into the old signal once the effect is almost settled.
For the EQs I use just on callback buffer for this fade.