NAME
    ogg123 - plays Ogg Vorbis files

SYNOPSIS
    ogg123 [ -vqzVh ] [ -k seconds ] [ -x nth ] [ -y ntimes ] [ -b
    buffer_size ] [ -d driver [ -o option:value ] [ -f filename ] ] file
    ... | directory ... | URL ...

DESCRIPTION
    ogg123 reads Ogg Vorbis audio files and decodes them to the devices
    specified on the command line. By default, ogg123 writes to the  stan-
    dard sound device, but output can be sent to any number of devices.
    Files can be read from the file system, or URLs can be  streamed via
    HTTP. If a directory is given, all of the files in it or its subdirec-
    tories will be played.

OPTIONS
    --audio-buffer n
    Use an output audio buffer of approximately 'n' kilobytes.

    -@ playlist, --list playlist
    Play all of the files named in the file 'playlist'.  The
    playlist should have one filename, directory name, or URL per
    line. Blank lines are permitted.  Directories will be treated
    in the same way as on the command line.

    -b n, --buffer n
    Use an input buffer of approximately 'n' kilobytes.

    -p n, --prebuffer n
    Prebuffer 'n' percent of the input buffer. Playback won't begin
    until this prebuffer is complete.

    -d device, --device device
    Specify output device.  See DEVICES section for a list of
    devices. Any number of devices may be specified.

    -f filename, --file filename
    Specify output file for file devices. The filename "-" writes
    to standard out. If the file already exists, ogg123 will  over-
    write it.

    -h, --help
    Show command help.

    -k n, --skip n
    Skip the first 'n' seconds

    -o option:value, --device-option option:value
    Assigns the option option to value for the preceding device.
    See DEVICES for a list of valid options for each device.

    -q, --quiet
    Quiet mode. No messages are displayed.

    -V, --version
    Display version information.

    -v, --verbose
    Increase verbosity.

    -x n, --nth
    Play every 'n'th decoded block. Has the effect of playing audio
    at 'n' times faster than normal speed.

    -y n, --ntimes
    Repeat every played block 'n' times. Has the effect of playing
    audio 'n' times slower than normal speed.  May be  with -x for
    interesting fractional speeds.

    -z, --shuffle
    Play files in pseudo-random order.

DEVICES
    ogg123 supports a variety of audio output devices through libao. Only
    those devices supported by the target platform will be available.  The
    -f option may only be used with devices that write to files.

    null  Null driver. All audio data is discarded. (Note: Audio data is
    not written to /dev/null !) You could use this driver to test
    raw decoding speed without output overhead.

    oss  Open Sound System driver for Linux and FreeBSD.
    Options:

     dsp  DSP device for soundcard.  Defaults to /dev/dsp.

    sun  Sun Audio driver for NetBSD, OpenBSD, and Solaris.
    Options:

     dev  Audio device  for  soundcard.  Defaults  to
      /dev/audio.

    alsa  Advanced Linux Sound Architecture.
    Options:

     card  Sound card number.  (Default = 0)

     dev  Device number on the sound card. (Default = 0)

     buf_size
      Override the default buffer size (in bytes).

    irix  IRIX audio driver.

    arts  aRts Sound Daemon.

    esd  Enlightened Sound Daemon.
    Options:

     host  The hostname where esd is running. This can
      include a port number after a colon, as in
      "whizbang.com:555". (Default = localhost)

    au   Sun audio file output. Writes the audio samples in AU format.
    The AU format supports writing to unseekable files, like  stan-
    dard out.  In such circumstances, the AU header will specify the
    sample format, but not the length of the recording.

    raw  Raw sample output. Writes raw audio samples to a file.
    Options:

     byteorder
      Choose big endian, little endian, or native byte
      order. (Default = "native")

    wav  WAV file output.  Writes the sound data to disk in uncompressed
    form. If multiple files are played, all of them will be con-
    catenated  into the same WAV file. WAV files cannot be written
    to unseekable files, such as standard out. Use the AU format
    instead.

EXAMPLES
    The ogg123 command line is fairly flexible, perhaps confusingly so.
    Here are some sample command lines and an explanation of what they do.

    Play on the default soundcard:
    ogg123 test.ogg

    Play all of the files in the directory ~/music and its subdirectories.
    ogg123 ~/music

    Play a file using the OSS driver:
    ogg123 -d oss test.ogg

    Pass the "dsp" option to the OSS driver:
    ogg123 -d oss -o dsp:/dev/mydsp

    Use the ESD driver
    ogg123 -d esd test.ogg

    Use the WAV driver with the output file, "test.wav":
    ogg123 -d wav -f test.wav test.ogg

    Listen to a file while you write it to a WAV file:
    ogg123 -d oss -d wav -f test.wav test.ogg

    Note that options apply to the device declared to the left:
    ogg123 -d oss -o dsp:/dev/mydsp -d raw -f test2.raw -o  byte-
    order:big test.ogg

    Stress test your harddrive:
    ogg123 -d oss -d wav -f 1.wav -d wav -f 2.wav -d wav -f 3.wav -d
    wav -f 4.wav -d wav -f 5.wav test.ogg

    Create an echo effect with esd and a slow computer:
    ogg123 -d esd -d esd test.ogg

INTERRUPT
    You can abort ogg123 at any time by pressing Ctrl-C. If you are  play-
    ing multiple files, this will stop the current file and begin playing
    the next one. If you want to abort playing immediately instead of
    skipping  to the next file, press Ctrl-C within the first second of the
    playback of a new file.

    Note that the result of pressing Ctrl-C might not be audible immedi-
    ately, due to audio data buffering in the audio device.  This delay is
    system dependent, but it is usually not more than one or two seconds.

FILES
    /etc/libao.conf
    Can be used to set the default output device for all libao pro-
    grams.

    ~/.libao
    Per-user config file to override the system wide output device
    settings.

BUGS
    Piped WAV files may cause strange behavior in other programs. This is
    because WAV files store the data length in the header. However, the
    output driver does not know the length when it writes the header, and
    there is no value that means "length unknown". Use the raw or au out-
    put driver if you need to use ogg123 in a pipe.

SEE ALSO
    libao.conf(5)

AUTHORS
    Program Authors:
    Kenneth Arnold <kcarnold@yahoo.com>
    Stan Seibert <indigo@aztec.asu.edu>

    Manpage Author:
    Stan Seibert <indigo@aztec.asu.edu>