2.2.2. Audio output devices

• OSS (ioctl) driver
• SDL driver (supports up/downsampling, esd, arts etc)
• native ALSA 0.5 driver
• native ALSA 0.9 driver (buggy, use OSS emulation!)
• ESD (through SDL)
• ARTS (through SDL)
• SUN audio driver (/dev/audio) for BSD and Solaris8 users

2.2.2.1. Soundcard experiences, recommendations

Aureal Vortex 2
	OSS/Free:	no driver
	OSS:	OK
	ALSA:	no driver
	Max kHz:	48
	Driver:	aureal.sourceforge.net
	Driver2:	from here (buffer size increased to 64k)
GUS PnP
	OSS/Free:	no driver
	OSS:	OK
	ALSA:	OK
	Max kHz:	48
SB Live!
	OSS:	OK
	ALSA:	(?)
	Max kHz:	48
SB AWE 64
	OSS:	max 44kHz
	ALSA:	48kHz sounds shit
	Max kHz:	48
Gravis UltraSound ACE
	OSS:	max 44Khz. Also has problems with the new sound code.
	ALSA:	OK
	Max kHz:	48
Gravis UltraSound MAX
	OSS:	OK
	ALSA:	OK (?)
	Max kHz:	48
ESS 688
	OSS:	OK
	ALSA:	OK (?)
	Max kHz:	48
C-Media cards (which ones?)
	OSS:	not OK (hissing) (?)
	ALSA:	OK (?)
	Max kHz:	?
PC Speaker or DAC
	OSS:	OK (use the SDL driver : -ao sdl)
	ALSA:	no driver
	Max kHz:	the driver emulates 44.1 maybe more
	Driver:	ftp://ftp.infradead.org/pub/pcsp

• use at least 2.4 if possible, 2.2 isn't tested
• if sound clicks when playing from CD-ROM, turn on IRQ unmasking ! for example "hdparm -u1 /dev/cdrom" (see "man hdparm" !!!) This is recommended anyways... (for XMMS, etc...) Read section 4.1.
• don't use your soundcard by other application ( for ex. XMMS ) ! if you use ESD, start MPlayer with the '-vo sdl:esd' option !
• Please tell us how MPlayer and your soundcard(s) worked together!