User Guide
User Guide | Transform Guide | OSW on the Web

This section describes the various command-line options available when running OSW.

General Options

-h, --help

Display list of available command-line options.

-V, --version

Display OSW version.

--server

Run OSW in server mode. Option not available on Windows.

--debug

Run OSW inside the GNU debugger gdb. Option not available on Windows.

Audio Options

-b, --set-buffer-size

Set the default sample buffer size (vector size) for audio signals.

-dr, --driver

Select the audio driver model to use. Use the -l option to find available drivers for your platform. The value none is available on all platforms to disable audio I/O.

-l, --list-drivers

List availalbe audio drivers, along with options and devices available for each driver.

-o, --driver-option

Set options for driver. Each option is of the form "-o option-name value". The following driver-specific options are currently available:

ALSA (Linux)

--device name: name of specific ALSA device to use (default is hw:0).

WinMME (Windows)

--device number: number of specific Windows MME device to use (default is to use load all audio devices except Microsoft Sound Mapper). Devices can be listed using the -l option.

ASIO (Windows)

--device number: number of specific ASIO device to use (default is to use load the first valid ASIO device). Devices can be listed using the -l option.

Other drivers (e.g., CoreAudio) do not currently define options.

-r, --set-sample-rate

Set default audio sample rate.

Linux-specific options

-tt, --task-threads

Set the number of task threads. On Linux, the default is the number of processors in the system (e.g., 1 for uniprocessor systems).