3 # Option blocks may appear multiple times, and duplicated options will take the
4 # last value specified. Environment variables may be specified within option
5 # values, and are automatically substituted when the config file is loaded.
6 # Environment variable names may only contain alpha-numeric characters (a-z,
7 # A-Z, 0-9) and underscores (_), and are prefixed with $. For example,
8 # specifying "$HOME/file.ext" would typically result in something like
9 # "/home/user/file.ext". To specify an actual "$" character, use "$$".
11 # Device-specific values may be specified by including the device name in the
12 # block name, with "general" replaced by the device name. That is, general
13 # options for the device "Name of Device" would be in the [Name of Device]
14 # block, while ALSA options would be in the [alsa/Name of Device] block.
15 # Options marked as "(global)" are not influenced by the device.
17 # The system-wide settings can be put in /etc/openal/alsoft.conf and user-
18 # specific override settings in $HOME/.alsoftrc.
19 # For Windows, these settings should go into $AppData\alsoft.ini
21 # Option and block names are case-senstive. The supplied values are only hints
22 # and may not be honored (though generally it'll try to get as close as
23 # possible). Note: options that are left unset may default to app- or system-
24 # specified values. These are the current available settings:
31 ## disable-cpu-exts: (global)
32 # Disables use of specialized methods that use specific CPU intrinsics.
33 # Certain methods may utilize CPU extensions for improved performance, and
34 # this option is useful for preventing some or all of those methods from being
35 # used. The available extensions are: sse, sse2, sse3, sse4.1, and neon.
36 # Specifying 'all' disables use of all such specialized methods.
40 # Sets the backend driver list order, comma-seperated. Unknown backends and
41 # duplicated names are ignored. Unlisted backends won't be considered for use
42 # unless the list is ended with a comma (e.g. 'oss,' will try OSS first before
43 # other backends, while 'oss' will try OSS only). Backends prepended with -
44 # won't be considered for use (e.g. '-oss,' will try all available backends
45 # except OSS). An empty list means to try all backends.
49 # Sets the output channel configuration. If left unspecified, one will try to
50 # be detected from the system, and defaulting to stereo. The available values
51 # are: mono, stereo, quad, surround51, surround51rear, surround61, surround71
55 # Sets the output sample type. Currently, all mixing is done with 32-bit float
56 # and converted to the output sample type as needed. Available values are:
57 # int8 - signed 8-bit int
58 # uint8 - unsigned 8-bit int
59 # int16 - signed 16-bit int
60 # uint16 - unsigned 16-bit int
61 # int32 - signed 32-bit int
62 # uint32 - unsigned 32-bit int
63 # float32 - 32-bit float
64 #sample-type = float32
67 # Sets the output frequency. If left unspecified it will try to detect a
68 # default from the system, otherwise it will default to 44100.
72 # Sets the update period size, in frames. This is the number of frames needed
73 # for each mixing update. Acceptable values range between 64 and 8192.
77 # Sets the number of update periods. Higher values create a larger mix ahead,
78 # which helps protect against skips when the CPU is under load, but increases
79 # the delay between a sound getting mixed and being heard. Acceptable values
80 # range between 2 and 16.
84 # Specifies if stereo output is treated as being headphones or speakers. With
85 # headphones, HRTF or crossfeed filters may be used for better audio quality.
86 # Valid settings are auto, speakers, and headphones.
90 # Specifies the panning method for non-HRTF stereo output. uhj (default)
91 # creates stereo-compatible two-channel UHJ output, which encodes some
92 # surround sound information, while paired uses standard pair-wise panning
93 # between -30 and +30 degrees. If crossfeed filters are used, uhj panning is
98 # Controls HRTF processing. These filters provide better spatialization of
99 # sounds while using headphones, but do require a bit more CPU power. The
100 # default filters will only work with 44100hz or 48000hz stereo output. While
101 # HRTF is used, the cf_level option is ignored. Setting this to auto (default)
102 # will allow HRTF to be used when headphones are detected or the app requests
103 # it, while setting true or false will forcefully enable or disable HRTF
108 # Specifies the default HRTF to use. When multiple HRTFs are available, this
109 # determines the preferred one to use if none are specifically requested. Note
110 # that this is the enumerated HRTF name, not necessarily the filename.
114 # Specifies a comma-separated list of paths containing HRTF data sets. The
115 # format of the files are described in hrtf.txt. The files within the
116 # directories must have the .mhr file extension to be recognized. By default,
117 # OS-dependent data paths will be used. They will also be used if the list
118 # ends with a comma. On Windows this is:
119 # $AppData\openal\hrtf
120 # And on other systems, it's (in order):
121 # $XDG_DATA_HOME/openal/hrtf (defaults to $HOME/.local/share/openal/hrtf)
122 # $XDG_DATA_DIRS/openal/hrtf (defaults to /usr/local/share/openal/hrtf and
123 # /usr/share/openal/hrtf)
127 # Sets the crossfeed level for stereo output. Valid values are:
130 # 2 - Middle crossfeed
131 # 3 - High crossfeed (virtual speakers are closer to itself)
132 # 4 - Low easy crossfeed
133 # 5 - Middle easy crossfeed
134 # 6 - High easy crossfeed
135 # Users of headphones may want to try various settings. Has no effect on non-
139 ## resampler: (global)
140 # Selects the resampler used when mixing sources. Valid values are:
141 # point - nearest sample, no interpolation
142 # linear - extrapolates samples using a linear slope between samples
143 # sinc4 - extrapolates samples using a 4-point Sinc filter
144 # sinc8 - extrapolates samples using an 8-point Sinc filter
145 # bsinc - extrapolates samples using a band-limited Sinc filter (varying
146 # between 12 and 24 points, with anti-aliasing)
147 # Specifying other values will result in using the default (linear).
151 # Sets real-time priority for the mixing thread. Not all drivers may use this
152 # (eg. PortAudio) as they already control the priority of the mixing thread.
153 # 0 and negative values will disable it. Note that this may constitute a
154 # security risk since a real-time priority thread can indefinitely block
155 # normal-priority threads if it fails to wait. As such, the default is
160 # Sets the maximum number of allocatable sources. Lower values may help for
161 # systems with apps that try to play more sounds than the CPU can handle.
165 # Sets the maximum number of Auxiliary Effect Slots an app can create. A slot
166 # can use a non-negligible amount of CPU time if an effect is set on it even
167 # if no sources are feeding it, so this may help when apps use more than the
172 # Sets the number of auxiliary sends per source. When not specified (default),
173 # it allows the app to request how many it wants. The maximum value currently
177 ## excludefx: (global)
178 # Sets which effects to exclude, preventing apps from using them. This can
179 # help for apps that try to use effects which are too CPU intensive for the
180 # system to handle. Available effects are: eaxreverb,reverb,chorus,compressor,
181 # distortion,echo,equalizer,flanger,modulator,dedicated
184 ## default-reverb: (global)
185 # A reverb preset that applies by default to all sources on send 0
186 # (applications that set their own slots on send 0 will override this).
187 # Available presets are: None, Generic, PaddedCell, Room, Bathroom,
188 # Livingroom, Stoneroom, Auditorium, ConcertHall, Cave, Arena, Hangar,
189 # CarpetedHallway, Hallway, StoneCorridor, Alley, Forest, City, Moutains,
190 # Quarry, Plain, ParkingLot, SewerPipe, Underwater, Drugged, Dizzy, Psychotic.
193 ## trap-alc-error: (global)
194 # Generates a SIGTRAP signal when an ALC device error is generated, on systems
195 # that support it. This helps when debugging, while trying to find the cause
196 # of a device error. On Windows, a breakpoint exception is generated.
197 #trap-alc-error = false
199 ## trap-al-error: (global)
200 # Generates a SIGTRAP signal when an AL context error is generated, on systems
201 # that support it. This helps when debugging, while trying to find the cause
202 # of a context error. On Windows, a breakpoint exception is generated.
203 #trap-al-error = false
206 ## Reverb effect stuff (includes EAX reverb)
211 # A global amplification for reverb output, expressed in decibels. The value
212 # is logarithmic, so +6 will be a scale of (approximately) 2x, +12 will be a
213 # scale of 4x, etc. Similarly, -6 will be about half, and -12 about 1/4th. A
214 # value of 0 means no change.
217 ## emulate-eax: (global)
218 # Allows the standard reverb effect to be used in place of EAX reverb. EAX
219 # reverb processing is a bit more CPU intensive than standard, so this option
220 # allows a simpler effect to be used at the loss of some quality.
224 ## PulseAudio backend stuff
228 ## spawn-server: (global)
229 # Attempts to autospawn a PulseAudio server whenever needed (initializing the
230 # backend, enumerating devices, etc). Setting autospawn to false in Pulse's
231 # client.conf will still prevent autospawning even if this is set to true.
234 ## allow-moves: (global)
235 # Allows PulseAudio to move active streams to different devices. Note that the
236 # device specifier (seen by applications) will not be updated when this
237 # occurs, and neither will the AL device configuration (sample rate, format,
242 # Specifies whether to match the playback stream's sample rate to the device's
243 # sample rate. Enabling this forces OpenAL Soft to mix sources and effects
244 # directly to the actual output rate, avoiding a second resample pass by the
249 ## ALSA backend stuff
254 # Sets the device name for the default playback device.
257 ## device-prefix: (global)
258 # Sets the prefix used by the discovered (non-default) playback devices. This
259 # will be appended with "CARD=c,DEV=d", where c is the card id and d is the
260 # device index for the requested device name.
261 #device-prefix = plughw:
263 ## device-prefix-*: (global)
264 # Card- and device-specific prefixes may be used to override the device-prefix
265 # option. The option may specify the card id (eg, device-prefix-NVidia), or
266 # the card id and device index (eg, device-prefix-NVidia-0). The card id is
271 # Sets the device name for the default capture device.
274 ## capture-prefix: (global)
275 # Sets the prefix used by the discovered (non-default) capture devices. This
276 # will be appended with "CARD=c,DEV=d", where c is the card id and d is the
277 # device number for the requested device name.
278 #capture-prefix = plughw:
280 ## capture-prefix-*: (global)
281 # Card- and device-specific prefixes may be used to override the
282 # capture-prefix option. The option may specify the card id (eg,
283 # capture-prefix-NVidia), or the card id and device index (eg,
284 # capture-prefix-NVidia-0). The card id is case-sensitive.
288 # Sets whether to try using mmap mode (helps reduce latencies and CPU
289 # consumption). If mmap isn't available, it will automatically fall back to
290 # non-mmap mode. True, yes, on, and non-0 values will attempt to use mmap. 0
291 # and anything else will force mmap off.
295 # Specifies whether to allow ALSA's built-in resampler. Enabling this will
296 # allow the playback device to be set to a different sample rate than the
297 # actual output, causing ALSA to apply its own resampling pass after OpenAL
298 # Soft resamples and mixes the sources and effects for output.
299 #allow-resampler = false
307 # Sets the device name for OSS output.
311 # Sets the device name for OSS capture.
315 ## Solaris backend stuff
320 # Sets the device name for Solaris output.
329 ## JACK backend stuff
333 ## spawn-server: (global)
334 # Attempts to autospawn a JACK server whenever needed (initializing the
335 # backend, opening devices, etc).
336 #spawn-server = false
339 # Sets the update buffer size, in samples, that the backend will keep buffered
340 # to handle the server's real-time processing requests. This value must be a
341 # power of 2, or else it will be rounded up to the next power of 2. If it is
342 # less than JACK's buffer update size, it will be clamped. This option may
343 # be useful in case the server's update size is too small and doesn't give the
344 # mixer time to keep enough audio available for the processing requests.
348 ## MMDevApi backend stuff
353 ## DirectSound backend stuff
358 ## Windows Multimedia backend stuff
363 ## PortAudio backend stuff
368 # Sets the device index for output. Negative values will use the default as
369 # given by PortAudio itself.
373 # Sets the device index for capture. Negative values will use the default as
374 # given by PortAudio itself.
378 ## Wave File Writer stuff
383 # Sets the filename of the wave file to write to. An empty name prevents the
384 # backend from opening, even when explicitly requested.
385 # THIS WILL OVERWRITE EXISTING FILES WITHOUT QUESTION!
389 # Creates AMB format files using first-order ambisonics instead of a standard
390 # single- or multi-channel .wav file.