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EMU(4)		       FreeBSD Kernel Interfaces Manual			EMU(4)

NAME
     emu -- Creative Labs SBLive!, PCI 512, and	Audigy audio device

SYNOPSIS
     emu* at pci?
     audio* at emu?

DESCRIPTION
     The emu device driver supports Creative Labs SoundBlaster Live!, Sound
     Blaster PCI 512, and SoundBlaster Audigy cards.

     These Environmental Audio cards are based upon the	programmable EMU10K1
     digital-processing	chip.

     Hardware features:

	   +o   E-mu Systems, Inc. EMU10K1 music	synthesis engine

	   +o   64-voice	hardware polyphony with	E-mu's patented	8-point	inter-
	       polation	technology

	   +o   Up to 1024-voice	polyphony with multi-timbre capability

	   +o   Support for real-time digital effects like reverb, chorus,
	       flanger,	pitch shifter, or distortion across any	audio source

	   +o   User-selectable settings	are optimized for headphones, two or
	       four speakers

	   +o   Processes sample	rates from 5kHz	to 48kHz

	   +o   Creative	Multi Speaker Surround (CMSS) places any mono or
	       stereo sound source in a	360 degree audio space

	   +o   Hardware	full-duplex support enables simultaneous record	and
	       playback	at 8 standard sample rates

	   +o   Allows multiple audio sources playback on the same speaker sys-
	       tem

SEE ALSO
     ac97(4), audio(4),	intro(4), joy(4), pci(4)

HISTORY
     The emu device driver appeared in OpenBSD 3.1.

AUTHORS
     The emu driver was	written	by Yannick Montulet
     <yannick.montulet@epitech.net> and	ported to OpenBSD 3.1 by Michael
     Shalayeff <mickey@openbsd.org>.

CAVEATS
     ATTENTION!

     The hardware interface of this card contains registers not	used for nor-
     mal operation, but	potentially dangerous and not possible to disable.
     Potential damage ranges from frying the card to frying motherboard	or ex-
     ternal equipment connected	to its outputs.

BUGS
     Currently this driver does	not support MIDI, joystick input, or the
     multi-voice capability.

     There is currently	no way to control the volume of	the DAC	for Sound-
     Blaster Audigy cards.

     S-PDIF digital output does	not work for SoundBlaster Live!	and Sound-
     Blaster Audigy cards.

FreeBSD	13.0			 July 16, 2013			  FreeBSD 13.0

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | HISTORY | AUTHORS | CAVEATS | BUGS

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=emu&sektion=4&manpath=OpenBSD+6.9>

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