How to add Audios filter in side panel while page authoring

Hi,

For one of my POCs ( in AEM 6.3), i am developing an audio component by overlaying the OOTB video component and customizing it.

While authoring the page, we get to drag-drop the assets from side panel onto the page.

  By default we can filter the assets like Images,Videos,Pages, Products etc.. I need to add an Audio filter and make audio files uploaded in DAM appear here.

  Please suggest me like where in crx structure can we add that predicate to filter the Audio assets, and what steps i need to perform to achieve my goal.

Regards,

Ajay.