1'' audio fade-in on every first/third-party video recording app

Hello everyone. I have a Sony Xperia Z3 and every time I'm trying to record a video, on any first/third-party app, it has a 1'' audio fade-in and sometimes a 1'' audio fade-out too. Is there a way to disable that built-in effect? Anybody else has had that problem? I'm on Android 4.4.4 and have root access. Thank you very much.

~ altrogeruvah