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JACK-RECORD(1)
==============
Rohan Drape <rd@slavepianos.org>
NAME
----
jack-record - JACK Capture Client
SYNOPSIS
--------
jack-record [options] sound-file
OPTIONS
-------
*-b*
: Set the disk buffer size in frames (default=4096). This value
must be a power of two. If the JACK period size at any time
exceeds this value the recorder will halt.
*-f*
: Set the file format (default=0x10006). The number is a bitwise-or
of two values, the first describes the file type, the second
the data type. The default value of 0x10000 | 0x00006 describes a
thirty-two bit floating point WAV file. 0x2 is 16-bit and 0x3 24-bit.
*-m*
: Set the minimal disk transfer size in frames (default=32). This
is an optimization switch.
*-n*
: Set the number of input channels to create (default=2).
*-o*
: Integer offset for port connection pattern (default=0).
*-p*
: A pattern describing the JACK ports to connect to,
ie. SuperCollider:out_%d (default=nil).
*-s*
: Capture to a set of single channel sound files. The sound file
name must be a valid template.
*-t*
: Set a timer to stop the recording after the specified number of
seconds (default=-1).
DESCRIPTION
-----------
jack-record is a light-weight JACK capture client to write an
arbitrary number of channels to disk. It implements no connection
logic, use jack-plumbing(1) instead.
If the default mode a single multiple channel sound file is written.
If the *-s* option is given a set of single channel sound files are
written. In this case the sound file name must be a valid template,
the substring %d is replaced with the channel number counting from
zero.
jack-record will write files in any format supported by libsndfile.
The table below shows the most common file format masks. For other
values see the file 'sndfile.h'.
Format Code Description
------ ---- -----------
SF_FORMAT_WAV 0x10000 Microsoft WAV format
SF_FORMAT_AIFF 0x20000 Apple/SGI AIFF format
SF_FORMAT_PCM_16 0x00002 Signed 16 bit data
SF_FORMAT_PCM_24 0x00003 Signed 24 bit data
SF_FORMAT_PCM_32 0x00004 Signed 32 bit data
SF_FORMAT_FLOAT 0x00006 32 bit float data
AUTHOR
------
Rohan Drape <http://rd.slavepianos.org/>
SEE ALSO
--------
jackd(1), libsndfile(3) <http://mega-nerd.com/libsndfile/>
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