1 # OpenAL config file. Options that are not under a block or are under the
2 # [general] block are for general, non-backend-specific options. Blocks may
3 # appear multiple times, and duplicated options will take the last value
5 # The system-wide settings can be put in /etc/openal/alsoft.conf and user-
6 # specific override settings in ~/.alsoftrc.
7 # For Windows, these settings should go into %AppData%\alsoft.ini
9 # Option and block names are case-insenstive. The supplied values are only
10 # hints and may not be honored (though generally it'll try to get as close as
11 # possible). Note: options that are left unset may default to app- or system-
12 # specified values. These are the current available settings:
15 # Sets the output channel configuration. If left unspecified, one will try to
16 # be detected from the system, and defaulting to stereo. The available values
17 # are: mono, stereo, quad, surround51, surround61, surround71
21 # Sets the output sample type. Currently, all mixing is done with 32-bit float
22 # and converted to the output sample type as needed. Available values are:
23 # int8 - signed 8-bit int
24 # uint8 - unsigned 8-bit int
25 # int16 - signed 16-bit int
26 # uint16 - unsigned 16-bit int
27 # int32 - signed 32-bit int
28 # uint32 - unsigned 32-bit int
29 # float32 - 32-bit float
30 #sample-type = float32
33 # Enables HRTF filters. These filters provide for better sound spatialization
34 # while using headphones. The default filter will only work when output is
35 # 44100hz stereo. While HRTF is active, the cf_level option is disabled.
36 # Default is disabled since stereo speaker output quality may suffer.
40 # Specifies a comma-separated list of files containing HRTF data sets. The
41 # listed data sets can be used in place of or in addiiton to the the built-in
42 # set. The format of the files are described in hrtf.txt.
46 # Sets the crossfeed level for stereo output. Valid values are:
49 # 2 - Middle crossfeed
50 # 3 - High crossfeed (virtual speakers are closer to itself)
51 # 4 - Low easy crossfeed
52 # 5 - Middle easy crossfeed
53 # 6 - High easy crossfeed
54 # Users of headphones may want to try various settings. Has no effect on non-
59 # Sets the output frequency.
63 # Selects the resampler used when mixing sources. Valid values are:
64 # point - nearest sample, no interpolation
65 # linear - extrapolates samples using a linear slope between samples
66 # cubic - extrapolates samples using a Catmull-Rom spline
67 # Specifying other values will result in using the default (linear).
71 # Sets real-time priority for the mixing thread. Not all drivers may use this
72 # (eg. PortAudio) as they already control the priority of the mixing thread.
73 # 0 and negative values will disable it. Note that this may constitute a
74 # security risk since a real-time priority thread can indefinitely block
75 # normal-priority threads if it fails to wait. As such, the default is
80 # Sets the update period size, in frames. This is the number of frames needed
81 # for each mixing update. Acceptable values range between 64 and 8192.
85 # Sets the number of update periods. Higher values create a larger mix ahead,
86 # which helps protect against skips when the CPU is under load, but increases
87 # the delay between a sound getting mixed and being heard. Acceptable values
88 # range between 2 and 16.
92 # Sets the maximum number of allocatable sources. Lower values may help for
93 # systems with apps that try to play more sounds than the CPU can handle.
97 # Sets the backend driver list order, comma-seperated. Unknown backends and
98 # duplicated names are ignored. Unlisted backends won't be considered for use
99 # unless the list is ended with a comma (eg. 'oss,' will list OSS first
100 # followed by all other available backends, while 'oss' will list OSS only).
101 # Backends prepended with - won't be available for use (eg. '-oss,' will allow
102 # all available backends except OSS). An empty list means the default.
103 #drivers = pulse,alsa,core,oss,solaris,sndio,mmdevapi,dsound,winmm,port,opensl,null,wave
106 # Sets which effects to exclude, preventing apps from using them. This can
107 # help for apps that try to use effects which are too CPU intensive for the
108 # system to handle. Available effects are: eaxreverb,reverb,echo,modulator,
113 # Sets the maximum number of Auxiliary Effect Slots an app can create. A slot
114 # can use a non-negligible amount of CPU time if an effect is set on it even
115 # if no sources are feeding it, so this may help when apps use more than the
120 # Sets the number of auxiliary sends per source. When not specified (default),
121 # it allows the app to request how many it wants. The maximum value currently
126 # Sets the virtual speaker layout. Values are specified in degrees, where 0 is
127 # straight in front, negative goes left, and positive goes right. Unspecified
128 # speakers will remain at their default positions (which are dependant on the
129 # output format). Available speakers are back-left(bl), side-left(sl), front-
130 # left(fl), front-center(fc), front-right(fr), side-right(sr), back-right(br),
131 # and back-center(bc).
135 # Channel-specific layouts may be specified to override the layout option. The
136 # same speakers as the layout option are available, and the default settings
138 #layout_stereo = fl=-90, fr=90
139 #layout_quad = fl=-45, fr=45, bl=-135, br=135
140 #layout_surround51 = fl=-30, fr=30, fc=0, bl=-110, br=110
141 #layout_surround61 = fl=-30, fr=30, fc=0, sl=-90, sr=90, bc=180
142 #layout_surround71 = fl=-30, fr=30, fc=0, sl=-90, sr=90, bl=-150, br=150
145 # A reverb preset that applies by default to all sources on send 0
146 # (applications that set their own slots on send 0 will override this).
147 # Available presets are: None, Generic, PaddedCell, Room, Bathroom,
148 # Livingroom, Stoneroom, Auditorium, ConcertHall, Cave, Arena, Hangar,
149 # CarpetedHallway, Hallway, StoneCorridor, Alley, Forest, City, Moutains,
150 # Quarry, Plain, ParkingLot, SewerPipe, Underwater, Drugged, Dizzy, Psychotic.
154 # Generates a SIGTRAP signal when an ALC device error is generated, on systems
155 # that support it. This helps when debugging, while trying to find the cause
156 # of a device error. On Windows, a breakpoint exception is generated.
157 #trap-alc-error = false
160 # Generates a SIGTRAP signal when an AL context error is generated, on systems
161 # that support it. This helps when debugging, while trying to find the cause
162 # of a context error. On Windows, a breakpoint exception is generated.
163 #trap-al-error = false
166 ## Reverb effect stuff (includes EAX reverb)
171 # A global amplification for reverb output, expressed in decibels. The value
172 # is logarithmic, so +6 will be a scale of (approximately) 2x, +12 will be a
173 # scale of 4x, etc. Similarly, -6 will be about half, and -12 about 1/4th. A
174 # value of 0 means no change.
178 # Allows the standard reverb effect to be used in place of EAX reverb. EAX
179 # reverb processing is a bit more CPU intensive than standard, so this option
180 # allows a simpler effect to be used at the loss of some quality.
184 ## ALSA backend stuff
189 # Sets the device name for the default playback device.
193 # Sets the prefix used by the discovered (non-default) playback devices. This
194 # will be appended with "CARD=c,DEV=d", where c is the card id and d is the
195 # device index for the requested device name.
196 #device-prefix = plughw:
199 # Card- and device-specific prefixes may be used to override the device-prefix
200 # option. The option may specify the card id (eg, device-prefix-NVidia), or
201 # the card id and device index (eg, device-prefix-NVidia-0). The card id is
206 # Sets the device name for the default capture device.
210 # Sets the prefix used by the discovered (non-default) capture devices. This
211 # will be appended with "CARD=c,DEV=d", where c is the card id and d is the
212 # device number for the requested device name.
213 #capture-prefix = plughw:
216 # Card- and device-specific prefixes may be used to override the
217 # capture-prefix option. The option may specify the card id (eg,
218 # capture-prefix-NVidia), or the card id and device index (eg,
219 # capture-prefix-NVidia-0). The card id is case-sensitive.
223 # Sets whether to try using mmap mode (helps reduce latencies and CPU
224 # consumption). If mmap isn't available, it will automatically fall back to
225 # non-mmap mode. True, yes, on, and non-0 values will attempt to use mmap. 0
226 # and anything else will force mmap off.
235 # Sets the device name for OSS output.
239 # Sets the device name for OSS capture.
243 ## Solaris backend stuff
248 # Sets the device name for Solaris output.
252 ## MMDevApi backend stuff
257 ## DirectSound backend stuff
262 ## Windows Multimedia backend stuff
267 ## PortAudio backend stuff
272 # Sets the device index for output. Negative values will use the default as
273 # given by PortAudio itself.
277 # Sets the device index for capture. Negative values will use the default as
278 # given by PortAudio itself.
282 ## PulseAudio backend stuff
287 # Attempts to spawn a PulseAudio server when requesting to open a PulseAudio
288 # device. Setting autospawn to false in PulseAudio's client.conf will still
289 # prevent autospawning even if this is set to true.
293 # Allows PulseAudio to move active streams to different devices. Note that the
294 # device specifier seen by applications will not be updated when this occurs,
295 # and neither will the AL device configuration (sample rate, format, etc).
299 ## Wave File Writer stuff
304 # Sets the filename of the wave file to write to. An empty name prevents the
305 # backend from opening, even when explicitly requested.
306 # THIS WILL OVERWRITE EXISTING FILES WITHOUT QUESTION!