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84 lines
3.5 KiB
Groff
84 lines
3.5 KiB
Groff
'\" t
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.\" Title: jack-record
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.\" Author: Rohan Drape <rd@slavepianos.org>
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.\" Generator: DocBook XSL Stylesheets v1.76.1 <http://docbook.sf.net/>
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.\" Date: 06/16/2013
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.\" Manual: \ \&
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.\" Source: \ \&
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.\" Language: English
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.\"
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.TH "JACK\-RECORD" "1" "06/16/2013" "\ \&" "\ \&"
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.\" -----------------------------------------------------------------
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.\" * Define some portability stuff
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.\" -----------------------------------------------------------------
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.\" http://bugs.debian.org/507673
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.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.ie \n(.g .ds Aq \(aq
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.el .ds Aq '
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.\" -----------------------------------------------------------------
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.\" * set default formatting
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.\" -----------------------------------------------------------------
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.\" disable hyphenation
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.nh
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.\" disable justification (adjust text to left margin only)
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.ad l
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.\" -----------------------------------------------------------------
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.\" * MAIN CONTENT STARTS HERE *
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.\" -----------------------------------------------------------------
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.SH "NAME"
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jack-record \- JACK Capture Client
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.SH "SYNOPSIS"
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.sp
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jack\-record [options] sound\-file
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.SH "OPTIONS"
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\fB\-b\fR : 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\&.
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.sp
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\fB\-f\fR : 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\&.
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.sp
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\fB\-m\fR : Set the minimal disk transfer size in frames (default=32)\&. This is an optimization switch\&.
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.sp
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\fB\-n\fR : Set the number of input channels to create (default=2)\&.
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.sp
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\fB\-o\fR : Integer offset for port connection pattern (default=0)\&.
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.sp
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\fB\-p\fR : A pattern describing the JACK ports to connect to, ie\&. SuperCollider:out_%d (default=nil)\&.
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.sp
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\fB\-s\fR : Capture to a set of single channel sound files\&. The sound file name must be a valid template\&.
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\fB\-t\fR : Set a timer to stop the recording after the specified number of seconds (default=\-1)\&.
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.SH "DESCRIPTION"
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.sp
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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\&.
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.sp
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If the default mode a single multiple channel sound file is written\&. If the \fB\-s\fR 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\&.
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.sp
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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 \fIsndfile\&.h\fR\&.
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.sp
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Format Code Description
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.br
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SF_FORMAT_WAV 0x10000 Microsoft WAV format
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.br
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SF_FORMAT_AIFF 0x20000 Apple/SGI AIFF format
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.br
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SF_FORMAT_PCM_16 0x00002 Signed 16 bit data
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.br
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SF_FORMAT_PCM_24 0x00003 Signed 24 bit data
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.br
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SF_FORMAT_PCM_32 0x00004 Signed 32 bit data
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.br
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SF_FORMAT_FLOAT 0x00006 32 bit float data
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.SH "AUTHOR"
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Rohan Drape http://rd\&.slavepianos\&.org/
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.SH "SEE ALSO"
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.sp
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jackd(1), libsndfile(3) http://mega\-nerd\&.com/libsndfile/
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.SH "AUTHOR"
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.PP
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\fBRohan Drape\fR <\&rd@slavepianos\&.org\&>
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.RS 4
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Author.
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.RE
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