diff --git a/share/man/man4/snd_emu10kx.4 b/share/man/man4/snd_emu10kx.4 index 759cd47f38d8..ba2bcf29ff4e 100644 --- a/share/man/man4/snd_emu10kx.4 +++ b/share/man/man4/snd_emu10kx.4 @@ -25,7 +25,7 @@ .\" .\" $FreeBSD$ .\" -.Dd July 15, 2007 +.Dd May 28, 2008 .Dt SND_EMU10KX 4 .Os .Sh NAME @@ -61,7 +61,7 @@ devices (see .Sx MULTICHANNEL PLAYBACK for details), and MPU401-compatible MIDI I/O controller, which is accessible through the midi device. -Wave table synthesizer is not supported. +Wave table synthesizer support is not available. .Sh HARDWARE The .Nm @@ -90,7 +90,7 @@ The .Nm driver does .Em not -support the following sound cards (although they are named +support the following sound cards (although they have names similar to some supported ones): .Pp .Bl -bullet -compact @@ -110,25 +110,29 @@ All other Creative sound cards with -DAT chipsets. All Creative X-Fi series sound cards. .El .Sh MULTICHANNEL PLAYBACK -By default driver is loaded with multichannel playback capabilities enabled. +By default the +.Nm +driver is loaded with multichannel playback capabilities enabled. If you do not set the .Dv hint.emu10kx.0.multichannel_disabled option in your .Xr loader.conf 5 -configuration file you will get up to -five DSP devices, one for each sound card output. +configuration file you will get up to five DSP devices, one for each +sound card output. You can use additional software (like .Em audio/pulseaudio from -.Em The Ports Collection -) to do sound stream demultiplexing. +.Em The Ports Collection ) +to do sound stream demultiplexing. Only .Dq FRONT output can play and record sound from external sources (like line or S/PDIF inputs). .Sh MULTICHANNEL RECORDING By default multichannel recording capabilities are not enabled when you load -this driver. +the +.Nm +driver. If you enable the .Dv hint.emu10kx.0.multichannel_recording option in @@ -136,14 +140,14 @@ option in you will get one more DSP device that is rate-locked to 48kHz/16bit/mono. This is actually 48kHz/16bit/32 channels on SB Live! cards and 48kHz/16bit/64channels on Audigy cards, but the current implementation of -sound subsystem does not support such an amount of PCM channels. +the sound subsystem does not support such an amount of PCM channels. This device can not be opened for read, thus confusing many applications. .Pp -Within multichannel stream first half (0-15 or 0-31) is a copy of all DSP -outputs, second half (15-30 or 32-63) is a copy of some DSP inputs. -On Live! cards the last substream (31) is used as a sync stream and always +Within a multichannel stream , thefirst half (0-15 or 0-31) is a copy of all DSP +outputs, the second half (15-30 or 32-63) is a copy of some DSP inputs. +On Live! cards the last substream (31) is used as a sync stream and is always set to 0xc0de. -Audigy cards do not need such sync data, because stream always start with +Audigy cards do not need such sync data, because a stream always starts with substream 0. .Ss SB Live! substream map (in byte offsets, each substream is 2 bytes LE) .Bl -tag -width ".Dv +0x00..+0x1E" @@ -183,19 +187,20 @@ On newer cards the OSS mixer controls some parameters of the AC97 codec and some DSP-based mixer controls. .Bl -inset .It Qq vol -mixer control is overall sound volume. +mixer control for the overall sound volume. .It Qq pcm -mixer control is PCM playback volume. +mixer control for the PCM playback volume. It controls only front output volume in multichannel mode and all output volume in single channel mode. .It Qq rec mixer control acts very different on EMU10K1 and other cards. On EMU10K1 cards it controls the AC97 codec recording level. -On non-EMU10K1 cards it controls the amount of AC97 "stereo mix" entering -the DSP. +On non-EMU10K1 cards it controls the amount of AC97 +.Dq stereo mix + entering the DSP. AC97 recording level and AC97 recording source are fixed on CA0100, CA0101, CA0102 and CA0108 cards. -AC97 recording level are always set to maximum and recording source is always +The AC97 recording levels are always set to maximum and recording source is always .Dq Li "stereo mix" . .It Qq dig1 is a CD S/PDIF (on-card) volume control @@ -210,26 +215,27 @@ is AudigyDrive "Line In 2" volume control is AudigyDrive "AUX In 2" volume control .El .Pp -Other OSS mixer controls control inputs of AC97 codec. +Other OSS mixer controls control the inputs of the AC97 codec. .Sh PRIVATE DEVICE CONTROLS -You can control some of EMU10Kx operation and configuration parameters through +You can control some of EMU10Kx's operation and configuration parameters through .Va dev.emu10kx. Ns Aq Ar X sysctls. These .Xr sysctl 8 -values are temporary and should not be relied -upon. +values are temporary and should not be relied upon. .Sh DRIVER CONFIGURATION Loader tunables are used to set driver configuration. Tunables can be set at the .Xr loader 8 prompt before booting the kernel or they can be stored in .Pa /boot/loader.conf . -These tunables can't be changed from a maching +These tunables cannot be changed from a machine .Xr sysctl 8 entry after boot, but you can change them using .Xr kenv 1 -while the driver is not loaded. +before loading the +.Nm +driver. .Bl -tag -width indent .It Va hint.emu10kx. Ns Ao Ar X Ac Ns Va .disabled Disables loading a driver instance. @@ -285,7 +291,7 @@ The driver does not detect lost S/PDIF signals and produces noise when S/PDIF is not connected and S/PDIF volume is not zero. .Pp The PCM driver cannot detect the presence of Live!Drive or AudigyDrive -breakout boxes and tries to use them (and list their connectors in the +breakout boxes and tries to use them (and list their connectors in the mixer). .Pp The MIDI driver cannot detect the presence of Live!Drive or AudigyDrive