Comment 66 for bug 751265

I can confirm that this bug is on Ubuntu 13.04. Loud crackling when playing audio streams on vlc. I'm using the following card.

03:01.0 Multimedia audio controller: Yamaha Corporation YMF-744B [DS-1S Audio Controller] (rev 02)
 Subsystem: Yamaha Corporation DS-XG PCI Audio CODEC
 Flags: bus master, medium devsel, latency 64, IRQ 16
 Memory at febf8000 (32-bit, non-prefetchable) [size=32K]
 I/O ports at ec00 [size=64]
 I/O ports at e880 [size=4]
 Capabilities: <access denied>
 Kernel driver in use: snd_ymfpci

A workaround I found was to change audio output module in audio preferences of vlc.