This  mod  adds 3DSE for piston and moaning (requires sideloder).
3DSE is a transparent studio item that produces sound.
It can be found in the Item -> 3DSE section.
To adjust the volume, go to System → Config → Sound Effects.
To use a (S) piston, add one keyframe when it's disabled and one when enabled through the "Enabled" interpolable.

=== How to install ===
Put the [BN2]soundmod.zipmod in the mods folder.

=== Uninstall ===
Delete the [BN2]soundmod.zipmod from the mods folder

=== To people who DL v2.1 ===

Please delete the bn2semod folder in abdata/studio/custom because they are no longer needed.
There is no problem even if you don't do it.

=== Credit ===
タイガーリリー　様　
みじんこ素材（CV誠樹ふぁん）様