Sound glitch during Goldsmithing

ISP:
Comcast

Type of Internet Connection:
Broadband

Internet Connection Speed:
Don't know

Date & Time:
2/13/2014, 5:20 PM CST

Frequency:
Sometimes

Character Name:
Simon Fletcher

Race:
Hyur M

World:
Midgardsormr

Class/Level:
Goldsmith 50

Area and Coordinates:
North Shroud (27,21)

Party or Solo:
Solo

NPC Name:
None

Monster Name:
None

In-Game Time:
I think between 1am-4am.

Steps:
I was crafting Electrum Ingots using an HQ Militia Grinding Wheel. The grinding sound occasionally does not occur. I've noticed it with the Hasty Touch action, specifically. It'll activate on most steps, but sometimes it's just silent. Other in-game sounds continue to function normally.

Also, while crafting Electrum Chokers with an Urcaguary, the tapping sound while using the Advanced Touch action also partially cuts out (it'll cut off mid-taps, or cut in late during the animation and only play a sound or two).