The steam audio update seems to have had an adverse affect on many older avatars with sound effects. Here are some examples of where the sound effects on these avatars are now painfully loud to both the wearer and people nearby:

avtr_07b64d1d-3c6a-4a01-b3b5-55b485333621 (toggle Transform in the AM)

avtr_4fad7dfc-e0ed-437b-ae4b-c2193da599fa (toggle Transform in the AM)

avtr_d7999956-06de-4175-8fe8-e0324cf83daf (hold rock and roll gesture)