The audio while finish playing as normal after I stop using the skill.
I have only played multiplayer online once, and local multiplayer once, and I didn`t use a demon hunter either time so I`m unsure what happens online.
I didn`t always have this issue, but the past few days I`ve noticed it.
I believe I was on Act 3 when it first began to happen.
I use the rune that adds the mini rockets.