Start an audio driver
io-audio [-d driver [driver_options]] [-o opt[,opt[,opt]]] [v[v]...]
- -d driver [driver_options]
- Load the specified driver and pass it the given driver_options. For information on the drivers and their syntax and options, see the deva-* entries.
- -o global_options
- Global options. The global_options variable can be any of the following:
See the list of shared objects (below) for details about local options for specific drivers.
The time in seconds after the last change before soundcard settings are written to disk, (a value of -1 prevents the settings from ever being written).
The maximum size, in kilobytes, for the DMA buffer.
On cards that have only a single channel in hardware, do not use software techniques to increase the maximum number of playing channels.
- config_write_delay= time
- Increase the level of verbose output.
The io-audio manager provides support for dynamically loaded audio-driver modules. This utility enables you to load the audio drivers specified by the -d options when you start io-audio.
- You can start more than one driver by using multiple -d command-line options, but don't try to start more than one instance of io-audio.
- Graphics drivers run at a higher priority than applications, but they shouldn't run at a higher priority than the audio, or else breaks in the audio occur. You can use the on command to adjust the priorities of the audio and graphics drivers.
Once io-audio has started, you can dynamically load and unload drivers using the mount and umount commands. E.g. this command:
io-audio -dvortex -daudiopci &
gives the same result as this sequence:
io-audio & mount -T io-audio vortex mount -T io-audio audiopci
To unload a module, use a command like this:
Provide support for Aureal Vortex sound card:
io-audio -vv -d vortex &
The io-audio command can load the following shared objects:
- Mixer DLL for the AC97 codec.