-.B speaker_backend \fINAME\fR
-Selects the backend use by the speaker process. The following options are
-available:
-.RS
-.TP
-.B alsa
-Use the ALSA API. This is only available on Linux systems, on which it is the
-default.
-.TP
-.B coreaudio
-Use Apple Core Audio. This only available on OS X systems, on which it is the
-default.
-.TP
-.B oss
-Use the OSS (/dev/dsp) API. Not available on all platforms.
-.TP
-.B command
-Execute a command. This is the default if
-.B speaker_command
-is specified, or if no native is available.
-.TP
-.B network
-Transmit audio over the network. This is the default if
-\fBbroadcast\fR is specified. You can use
-.BR disorder-playrtp (1)
-to receive and play the resulting stream on Linux and OS X.
-.RE
-.TP