# OpenAL config file. # # Option blocks may appear multiple times, and duplicated options will take the # last value specified. Environment variables may be specified within option # values, and are automatically substituted when the config file is loaded. # Environment variable names may only contain alpha-numeric characters (a-z, # A-Z, 0-9) and underscores (_), and are prefixed with $. For example, # specifying "$HOME/file.ext" would typically result in something like # "/home/user/file.ext". To specify an actual "$" character, use "$$". # # Device-specific values may be specified by including the device name in the # block name, with "general" replaced by the device name. That is, general # options for the device "Name of Device" would be in the [Name of Device] # block, while ALSA options would be in the [alsa/Name of Device] block. # Options marked as "(global)" are not influenced by the device. # # The system-wide settings can be put in /etc/openal/alsoft.conf and user- # specific override settings in $HOME/.alsoftrc. # For Windows, these settings should go into $AppData\alsoft.ini # # Option and block names are case-senstive. The supplied values are only hints # and may not be honored (though generally it'll try to get as close as # possible). Note: options that are left unset may default to app- or system- # specified values. These are the current available settings: ## ## General stuff ## [general] ## disable-cpu-exts: (global) # Disables use of specialized methods that use specific CPU intrinsics. # Certain methods may utilize CPU extensions for improved performance, and # this option is useful for preventing some or all of those methods from being # used. The available extensions are: sse, sse2, sse3, sse4.1, and neon. # Specifying 'all' disables use of all such specialized methods. #disable-cpu-exts = ## drivers: (global) # Sets the backend driver list order, comma-seperated. Unknown backends and # duplicated names are ignored. Unlisted backends won't be considered for use # unless the list is ended with a comma (e.g. 'oss,' will try OSS first before # other backends, while 'oss' will try OSS only). Backends prepended with - # won't be considered for use (e.g. '-oss,' will try all available backends # except OSS). An empty list means to try all backends. #drivers = ## channels: # Sets the output channel configuration. If left unspecified, one will try to # be detected from the system, and defaulting to stereo. The available values # are: mono, stereo, quad, surround51, surround51rear, surround61, surround71 #channels = ## sample-type: # Sets the output sample type. Currently, all mixing is done with 32-bit float # and converted to the output sample type as needed. Available values are: # int8 - signed 8-bit int # uint8 - unsigned 8-bit int # int16 - signed 16-bit int # uint16 - unsigned 16-bit int # int32 - signed 32-bit int # uint32 - unsigned 32-bit int # float32 - 32-bit float #sample-type = float32 ## frequency: # Sets the output frequency. If left unspecified it will try to detect a # default from the system, otherwise it will default to 44100. #frequency = ## period_size: # Sets the update period size, in frames. This is the number of frames needed # for each mixing update. Acceptable values range between 64 and 8192. #period_size = 1024 ## periods: # Sets the number of update periods. Higher values create a larger mix ahead, # which helps protect against skips when the CPU is under load, but increases # the delay between a sound getting mixed and being heard. Acceptable values # range between 2 and 16. #periods = 4 ## stereo-mode: # Specifies if stereo output is treated as being headphones or speakers. With # headphones, HRTF or crossfeed filters may be used for better audio quality. # Valid settings are auto, speakers, and headphones. #stereo-mode = auto ## stereo-panning: # Specifies the panning method for non-HRTF stereo output. uhj (default) # creates stereo-compatible two-channel UHJ output, which encodes some # surround sound information, while paired uses standard pair-wise panning # between -30 and +30 degrees. If crossfeed filters are used, uhj panning is # disabled. #stereo-panning = uhj ## hrtf: # Controls HRTF processing. These filters provide better spatialization of # sounds while using headphones, but do require a bit more CPU power. The # default filters will only work with 44100hz or 48000hz stereo output. While # HRTF is used, the cf_level option is ignored. Setting this to auto (default) # will allow HRTF to be used when headphones are detected or the app requests # it, while setting true or false will forcefully enable or disable HRTF # respectively. #hrtf = auto ## default-hrtf: # Specifies the default HRTF to use. When multiple HRTFs are available, this # determines the preferred one to use if none are specifically requested. Note # that this is the enumerated HRTF name, not necessarily the filename. #default-hrtf = ## hrtf-paths: # Specifies a comma-separated list of paths containing HRTF data sets. The # format of the files are described in hrtf.txt. The files within the # directories must have the .mhr file extension to be recognized. By default, # OS-dependent data paths will be used. They will also be used if the list # ends with a comma. On Windows this is: # $AppData\openal\hrtf # And on other systems, it's (in order): # $XDG_DATA_HOME/openal/hrtf (defaults to $HOME/.local/share/openal/hrtf) # $XDG_DATA_DIRS/openal/hrtf (defaults to /usr/local/share/openal/hrtf and # /usr/share/openal/hrtf) #hrtf-paths = ## cf_level: # Sets the crossfeed level for stereo output. Valid values are: # 0 - No crossfeed # 1 - Low crossfeed # 2 - Middle crossfeed # 3 - High crossfeed (virtual speakers are closer to itself) # 4 - Low easy crossfeed # 5 - Middle easy crossfeed # 6 - High easy crossfeed # Users of headphones may want to try various settings. Has no effect on non- # stereo modes. #cf_level = 0 ## resampler: (global) # Selects the resampler used when mixing sources. Valid values are: # point - nearest sample, no interpolation # linear - extrapolates samples using a linear slope between samples # sinc4 - extrapolates samples using a 4-point Sinc filter # sinc8 - extrapolates samples using an 8-point Sinc filter # bsinc - extrapolates samples using a band-limited Sinc filter (varying # between 12 and 24 points, with anti-aliasing) # Specifying other values will result in using the default (linear). #resampler = linear ## rt-prio: (global) # Sets real-time priority for the mixing thread. Not all drivers may use this # (eg. PortAudio) as they already control the priority of the mixing thread. # 0 and negative values will disable it. Note that this may constitute a # security risk since a real-time priority thread can indefinitely block # normal-priority threads if it fails to wait. As such, the default is # disabled. #rt-prio = 0 ## sources: # Sets the maximum number of allocatable sources. Lower values may help for # systems with apps that try to play more sounds than the CPU can handle. #sources = 256 ## slots: # Sets the maximum number of Auxiliary Effect Slots an app can create. A slot # can use a non-negligible amount of CPU time if an effect is set on it even # if no sources are feeding it, so this may help when apps use more than the # system can handle. #slots = 4 ## sends: # Sets the number of auxiliary sends per source. When not specified (default), # it allows the app to request how many it wants. The maximum value currently # possible is 4. #sends = ## excludefx: (global) # Sets which effects to exclude, preventing apps from using them. This can # help for apps that try to use effects which are too CPU intensive for the # system to handle. Available effects are: eaxreverb,reverb,chorus,compressor, # distortion,echo,equalizer,flanger,modulator,dedicated #excludefx = ## default-reverb: (global) # A reverb preset that applies by default to all sources on send 0 # (applications that set their own slots on send 0 will override this). # Available presets are: None, Generic, PaddedCell, Room, Bathroom, # Livingroom, Stoneroom, Auditorium, ConcertHall, Cave, Arena, Hangar, # CarpetedHallway, Hallway, StoneCorridor, Alley, Forest, City, Moutains, # Quarry, Plain, ParkingLot, SewerPipe, Underwater, Drugged, Dizzy, Psychotic. #default-reverb = ## trap-alc-error: (global) # Generates a SIGTRAP signal when an ALC device error is generated, on systems # that support it. This helps when debugging, while trying to find the cause # of a device error. On Windows, a breakpoint exception is generated. #trap-alc-error = false ## trap-al-error: (global) # Generates a SIGTRAP signal when an AL context error is generated, on systems # that support it. This helps when debugging, while trying to find the cause # of a context error. On Windows, a breakpoint exception is generated. #trap-al-error = false ## ## Reverb effect stuff (includes EAX reverb) ## [reverb] ## boost: (global) # A global amplification for reverb output, expressed in decibels. The value # is logarithmic, so +6 will be a scale of (approximately) 2x, +12 will be a # scale of 4x, etc. Similarly, -6 will be about half, and -12 about 1/4th. A # value of 0 means no change. #boost = 0 ## emulate-eax: (global) # Allows the standard reverb effect to be used in place of EAX reverb. EAX # reverb processing is a bit more CPU intensive than standard, so this option # allows a simpler effect to be used at the loss of some quality. #emulate-eax = false ## ## PulseAudio backend stuff ## [pulse] ## spawn-server: (global) # Attempts to autospawn a PulseAudio server whenever needed (initializing the # backend, enumerating devices, etc). Setting autospawn to false in Pulse's # client.conf will still prevent autospawning even if this is set to true. #spawn-server = true ## allow-moves: (global) # Allows PulseAudio to move active streams to different devices. Note that the # device specifier (seen by applications) will not be updated when this # occurs, and neither will the AL device configuration (sample rate, format, # etc). #allow-moves = false ## fix-rate: # Specifies whether to match the playback stream's sample rate to the device's # sample rate. Enabling this forces OpenAL Soft to mix sources and effects # directly to the actual output rate, avoiding a second resample pass by the # PulseAudio server. #fix-rate = false ## ## ALSA backend stuff ## [alsa] ## device: (global) # Sets the device name for the default playback device. #device = default ## device-prefix: (global) # Sets the prefix used by the discovered (non-default) playback devices. This # will be appended with "CARD=c,DEV=d", where c is the card id and d is the # device index for the requested device name. #device-prefix = plughw: ## device-prefix-*: (global) # Card- and device-specific prefixes may be used to override the device-prefix # option. The option may specify the card id (eg, device-prefix-NVidia), or # the card id and device index (eg, device-prefix-NVidia-0). The card id is # case-sensitive. #device-prefix- = ## capture: (global) # Sets the device name for the default capture device. #capture = default ## capture-prefix: (global) # Sets the prefix used by the discovered (non-default) capture devices. This # will be appended with "CARD=c,DEV=d", where c is the card id and d is the # device number for the requested device name. #capture-prefix = plughw: ## capture-prefix-*: (global) # Card- and device-specific prefixes may be used to override the # capture-prefix option. The option may specify the card id (eg, # capture-prefix-NVidia), or the card id and device index (eg, # capture-prefix-NVidia-0). The card id is case-sensitive. #capture-prefix- = ## mmap: # Sets whether to try using mmap mode (helps reduce latencies and CPU # consumption). If mmap isn't available, it will automatically fall back to # non-mmap mode. True, yes, on, and non-0 values will attempt to use mmap. 0 # and anything else will force mmap off. #mmap = true ## allow-resampler: # Specifies whether to allow ALSA's built-in resampler. Enabling this will # allow the playback device to be set to a different sample rate than the # actual output, causing ALSA to apply its own resampling pass after OpenAL # Soft resamples and mixes the sources and effects for output. #allow-resampler = false ## ## OSS backend stuff ## [oss] ## device: (global) # Sets the device name for OSS output. #device = /dev/dsp ## capture: (global) # Sets the device name for OSS capture. #capture = /dev/dsp ## ## Solaris backend stuff ## [solaris] ## device: (global) # Sets the device name for Solaris output. #device = /dev/audio ## ## QSA backend stuff ## [qsa] ## ## JACK backend stuff ## [jack] ## spawn-server: (global) # Attempts to autospawn a JACK server whenever needed (initializing the # backend, opening devices, etc). #spawn-server = false ## buffer-size: # Sets the update buffer size, in samples, that the backend will keep buffered # to handle the server's real-time processing requests. This value must be a # power of 2, or else it will be rounded up to the next power of 2. If it is # less than JACK's buffer update size, it will be clamped. This option may # be useful in case the server's update size is too small and doesn't give the # mixer time to keep enough audio available for the processing requests. #buffer-size = 0 ## ## MMDevApi backend stuff ## [mmdevapi] ## ## DirectSound backend stuff ## [dsound] ## ## Windows Multimedia backend stuff ## [winmm] ## ## PortAudio backend stuff ## [port] ## device: (global) # Sets the device index for output. Negative values will use the default as # given by PortAudio itself. #device = -1 ## capture: (global) # Sets the device index for capture. Negative values will use the default as # given by PortAudio itself. #capture = -1 ## ## Wave File Writer stuff ## [wave] ## file: (global) # Sets the filename of the wave file to write to. An empty name prevents the # backend from opening, even when explicitly requested. # THIS WILL OVERWRITE EXISTING FILES WITHOUT QUESTION! #file = ## bformat: (global) # Creates AMB format files using first-order ambisonics instead of a standard # single- or multi-channel .wav file. #bformat = false