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
8 # The environment variable ALSOFT_CONF can be used to specify another config
11 # Option and block names are case-insenstive. The supplied values are only
12 # hints and may not be honored (though generally it'll try to get as close as
13 # possible). Note: options that are left unset may default to app- or system-
14 # specified values. These are the current available settings:
17 # Sets the output format. Can be one of:
18 # AL_FORMAT_MONO8 (8-bit mono)
19 # AL_FORMAT_STEREO8 (8-bit stereo)
20 # AL_FORMAT_QUAD8 (8-bit 4-channel)
21 # AL_FORMAT_51CHN8 (8-bit 5.1 output)
22 # AL_FORMAT_61CHN8 (8-bit 6.1 output)
23 # AL_FORMAT_71CHN8 (8-bit 7.1 output)
24 # AL_FORMAT_MONO16 (16-bit mono)
25 # AL_FORMAT_STEREO16 (16-bit stereo)
26 # AL_FORMAT_QUAD16 (16-bit 4-channel)
27 # AL_FORMAT_51CHN16 (16-bit 5.1 output)
28 # AL_FORMAT_61CHN16 (16-bit 6.1 output)
29 # AL_FORMAT_71CHN16 (16-bit 7.1 output)
30 # AL_FORMAT_MONO32 (32-bit float mono)
31 # AL_FORMAT_STEREO32 (32-bit float stereo)
32 # AL_FORMAT_QUAD32 (32-bit float 4-channel)
33 # AL_FORMAT_51CHN32 (32-bit float 5.1 output)
34 # AL_FORMAT_61CHN32 (32-bit float 6.1 output)
35 # AL_FORMAT_71CHN32 (32-bit float 7.1 output)
36 #format = AL_FORMAT_STEREO16
39 # Sets the crossfeed level for stereo output. Valid values are:
42 # 2 - Middle crossfeed
43 # 3 - High crossfeed (virtual speakers are closer to itself)
44 # 4 - Low easy crossfeed
45 # 5 - Middle easy crossfeed
46 # 6 - High easy crossfeed
47 # Users of headphones may want to try various settings. Has no effect on non-
52 # Sets the amount of dampening on sounds emanating from behind the listener.
53 # This is used to simulate the natural occlusion of the head, which is
54 # typically missing with mono and stereo output, and as such, only works on
55 # mono and stereo output modes. Valid values range from 0 to 1 (inclusive),
56 # and higher values provide a stronger effect.
60 # Sets the output frequency.
64 # Selects the resampler used when mixing sources. Valid values are:
65 # 0 - None (nearest sample, no interpolation)
66 # 1 - Linear (extrapolates samples using a linear slope between samples)
67 # 2 - Cosine (extrapolates using a (co)sine slope)
68 # Specifying other values will result in using the default (linear).
72 # Sets real-time priority for the mixing thread. Not all drivers may use this
73 # (eg. PulseAudio) as they already control the priority of the mixing thread.
74 # 0 and negative values will disable it. Note that this may constitute a
75 # security risk since a real-time priority thread can indefinitely block
76 # normal-priority threads if it fails to wait. As such, the default is
81 # Sets the update period size, in frames. This is the number of frames needed
82 # for each mixing update. If the deprecated 'refresh' option is specified and
83 # this isn't, the value will be calculated as size = refresh/periods.
87 # Sets the number of update periods. Higher values create a larger mix ahead,
88 # which helps protect against skips when the CPU is under load, but increases
89 # the delay between a sound getting mixed and being heard.
93 # Sets the maximum number of allocatable sources. Lower values may help for
94 # systems with apps that try to play more sounds than the CPU can handle.
98 # Sets whether to duplicate stereo sounds on the rear and side speakers for 4+
99 # channel output. This can make stereo sources substantially louder than mono
100 # or even 4+ channel sources, but provides a "fuller" playback quality. True,
101 # yes, on, and non-0 values will duplicate stereo sources. 0 and anything else
102 # will cause stereo sounds to only play out the front speakers.
106 # Sets the backend driver list order, comma-seperated. Unknown backends and
107 # duplicated names are ignored. Unlisted backends won't be considered for use
108 # unless the list is ended with a comma (eg. 'oss,' will list OSS first
109 # followed by all other available backends, while 'oss' will list OSS only).
110 # An empty list means the default.
111 #drivers = pulse,alsa,oss,solaris,dsound,winmm,port,wave
114 # Sets which effects to exclude, preventing apps from using them. This can
115 # help for apps that try to use effects which are too CPU intensive for the
116 # system to handle. Available effects are: eaxreverb,reverb,echo
120 # Sets the maximum number of Auxiliary Effect Slots an app can create. A slot
121 # can use a non-negligible amount of CPU time if an effect is set on it even
122 # if no sources are feeding it, so this may help when apps use more than the
127 # Sets the maximum number of auxiliary sends per source. The total number of
128 # sends possible is defined at compile time and thus can not be increased
129 # beyond the default (2).
133 # Sets the speaker layout when using stereo output. Values are specified in
134 # degrees, where 0 is straight in front, negative goes left, and positive goes
135 # right. The values must define a circular pattern, starting with the back-
136 # left at the most negative, around the front to back-center. Unspecified
137 # speakers will remain at their default position. Available speakers are
138 # front-left(fl) and front-right(fr).
139 #layout_STEREO = fl=-90, fr=90
142 # Sets the speaker layout when using quadriphonic output. Available speakers
143 # are back-left(bl), front-left(fl), front-right(fr), and back-right(br).
144 #layout_QUAD = bl=-135, fl=-45, fr=45, br=135
147 # Sets the speaker layout when using 5.1 output. Available speakers are back-
148 # left(bl), front-left(fl), front-center(fc), front-right(fr), and back-
150 #layout_51CHN = bl=-110, fl=-30, fc=0, fr=30, br=110
153 # Sets the speaker layout when using 6.1 output. Available speakers are side-
154 # left(sl), front-left(fl), front-center(fc), front-right(fr), side-right(sr),
155 # and back-center(bc).
156 #layout_61CHN = sl=-90, fl=-30, fc=0, fr=30, sr=90, bc=180
159 # Sets the speaker layout when using 7.1 output. Available speakers are back-
160 # left(bl), side-left(sl), front-left(fl), front-center(fc), front-right(fr),
161 # side-right(sr), and back-right(br).
162 #layout_71CHN = bl=-150, sl=-90, fl=-30, fc=0, fr=30, sr=90, br=150
165 ## ALSA backend stuff
170 # Sets the device name for the default playback device.
174 # Sets the device name for the default capture device.
178 # Sets whether to try using mmap mode (helps reduce latencies and CPU
179 # consumption). If mmap isn't available, it will automatically fall back to
180 # non-mmap mode. True, yes, on, and non-0 values will attempt to use mmap. 0
181 # and anything else will force mmap off.
190 # Sets the device name for OSS output.
194 # Sets the device name for OSS capture.
198 ## Solaris backend stuff
203 # Sets the device name for Solaris output.
207 ## DirectSound backend stuff
212 ## Windows Multimedia backend stuff
217 ## PortAudio backend stuff
222 # Sets the device index for output. Negative values will use the default as
223 # given by PortAudio itself.
227 ## PulseAudio backend stuff
232 # Attempts to spawn a PulseAudio server when requesting to open a PulseAudio
233 # device. Note that some apps may open and probe all enumerated devices on
234 # startup, causing a server to spawn even if a PulseAudio device is not
235 # actually selected. Setting autospawn to false in Pulse's client.conf will
236 # still prevent autospawning even if this is set to true.
237 #spawn-server = false
240 # Specifies the PulseAudio buffer length, in sample frames. When set to a
241 # non-0 value, it specifies the total buffer length for the playback stream,
242 # overriding the period settings. Otherwise it uses the period size and count
243 # to calculate a buffer size. PulseAudio, unlike other backends, does not work
244 # in period chunks, but instead just has one buffer block which is refilled as
245 # it nears empty. Because of this, the usual buffering metrics are unsuitable,
246 # with the default 4096 frames being needlessly large.
247 #buffer-length = 2048
250 ## Wave File Writer stuff
255 # Sets the filename of the wave file to write to. An empty name prevents the
256 # backend from opening, even when explicitly requested.
257 # THIS WILL OVERWRITE EXISTING FILES WITHOUT QUESTION!