JACK-STDOUT(1)              General Commands Manual             JACK-STDOUT(1)

NAME
       jack-stdout - write JACK audio data to stdout

SYNOPSIS
       jack-stdout [OPTIONS] port1 [ port2 ...]

DESCRIPTION
       jack-stdout captures audio from JACK and writes raw data to standard-
       output.

       The number of given ports detemine the number of audio channels that
       are used.  If more than one channel is given, the audio-sample data
       will be interleaved.

OPTIONS
       -b, --bitdepth BITS
              Specify the bit-depth of each sample. For integer-encoding this
              can be 16 or 24.  The default is 16.  This setting is only used
              for integer encoding: Floating-point samples will always be 32
              bit wide.


       -d, --duration SEC
              Specify the time for which jack-stdout should run in seconds.  A
              value less than 1 means to run indefinitely. The default is 0.


       -e, --encoding FORMAT
              Set the output format of the data: signed-integer, unsigned-
              integer, floating-point (default: signed)


       -n, --name CLIENTNAME
              Set JACK client name (default: jstdout)


       -h, --help
              Print a brief usage information


       -L, --little-endian
              Write little-endian data or native-byte-order float (this is the
              default)


       -B, --big-endian
              Output big-endian data or swap the byte-order of floating-point


       -q, --quiet
              Inhibit usual output.  This affects information and buffer-
              overflow warnings but not setup-errors.


       -S, --bufsize SAMPLES
              Choose the internal buffer-size in samples. The default size is
              65536.  The given value will be multiplied by the number of
              channels and bit-depth to get the size of the ring-buffer.


EXAMPLES
         jack-stdout xmms_0:out_1 xmms_0:out_2 \
         | mono  ~/Desktop/Downloads/JustePort.exe - 10.0.1.6 0

         jack-stdout -b 24 -e unsigned -B system:capture_1 system:capture_2 \
         | sox -t raw -r 48k -e unsigned -b 24 -B -c 2 - /tmp/recording.wav

         jack-stdout system:capture_1 system:capture_2 \
         | oggenc -r -R 48000 -B 16 -C 2 - \
         > /tmp/recording.ogg

         jack-stdout system:capture_1 \
         | oggenc -r -R 48000 -B 16 -C 1 - \
         | oggfwd -p -n "my live stream" localhost 5900 hackme live.ogg

AUTHOR
       Robin Gareus <robin@gareus.org>.

SEE ALSO
       http://jackaudio.org/,

                               21 February 2019                 JACK-STDOUT(1)