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Commit jackd2-manpages.patch, ticket #166.
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.TH ALSA_IO "1" "!DATE!" "!VERSION!" | ||
.SH NAME | ||
\fBalsa_in\fR, \fBalsa_out\fR \- Jack clients that perform I/O with an alternate audio interface | ||
.SH SYNOPSIS | ||
\fBalsa_in\fR [\fIoptions\fR] | ||
.br | ||
\fBalsa_out\fR [\fIoptions\fR] | ||
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.SH DESCRIPTION | ||
A JACK client that opens a specified audio interface (different to the | ||
one used by the JACK server, if any) and moves audio data between its | ||
JACK ports and the interface. alsa_in will provide data from the | ||
interface (potentially for capture); alsa_out will deliver data to it | ||
(for playback). | ||
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The audio interface used by alsa_in/alsa_out does not need to be | ||
synchronized with JACK backend (or the hardware it might be using). | ||
alsa_in/alsa_out tries to resample the output stream in an attempt to | ||
compensate for drift between the two clocks. | ||
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As of jack-0.116.3 this works almost perfectly. It takes some time, to reach | ||
absolute resample-rate stability. So give it some minutes (its intended to be | ||
running permanently anyways) | ||
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.SH OPTIONS | ||
.TP | ||
\fB\-j \fI jack_client_name\fR | ||
.br | ||
Set Client Name. | ||
.TP | ||
\fB\-d \fI alsa_device\fR | ||
.br | ||
Use this Soundcard. | ||
.TP | ||
\fB\-v\fR | ||
.br | ||
Verbose, prints out resample coefficient and other parameters useful for debugging, every 500ms. | ||
also reports soft xruns. | ||
.TP | ||
\fB\-i\fR | ||
.br | ||
Instrumentation. This logs the 4 important parameters of the samplerate control algorithm every 1ms. | ||
You can pipe this into a file, and plot it. Should only be necessary, if it does not work as | ||
expected, and we need to adjust some of the obscure parameters, to make it work. | ||
Find me on irc.freenode.org #jack in order to set this up correctly. | ||
.TP | ||
\fB\-c \fI channels\fR | ||
.br | ||
Set Number of channels. | ||
.TP | ||
\fB\-r \fI sample_rate\fR | ||
.br | ||
Set sample_rate. The program resamples as necessary. | ||
So you can connect a 44k1 jackd to a soundcard only supporting | ||
48k. (default is jack sample_rate) | ||
.TP | ||
\fB\-p \fI period_size\fR | ||
.br | ||
Set the period size. It is not related to the jackd period_size. | ||
Sometimes it affects the quality of the delay measurements. | ||
Setting this lower than the jackd period_size will only work, if you | ||
use a higher number of periods. | ||
.TP | ||
\fB\-n \fI num_period\fR | ||
.br | ||
Set number of periods. See note for period_size. | ||
.TP | ||
\fB\-q \fI quality\fR | ||
.br | ||
Set the quality of the resampler from 0 to 4. can significanly reduce cpu usage. | ||
.TP | ||
\fB\-m \fI max_diff\fR | ||
.br | ||
The value when a soft xrun occurs. Basically the window, in which | ||
the dma pointer may jitter. I don't think its necessary to play with this anymore. | ||
.TP | ||
\fB\-t \fI target_delay\fR | ||
.br | ||
The delay alsa_io should try to approach. Same as for max_diff. It will be setup based on \-p and \-n | ||
which is generally sufficient. | ||
.TP | ||
\fB\-s \fI smooth_array_size\fR | ||
.br | ||
This parameter controls the size of the array used for smoothing the delay measurement. Its default is 256. | ||
If you use a pretty low period size, you can lower the CPU usage a bit by decreasing this parameter. | ||
However most CPU time is spent in the resampling so this will not be much. | ||
.TP | ||
\fB\-C \fI P Control Clamp\fR | ||
.br | ||
If you have a PCI card, then the default value (15) of this parameter is too high for \-p64 \-n2... Setting it to 5 should fix that. | ||
Be aware that setting this parameter too low, lets the hf noise on the delay measurement come through onto the resamplerate, so this | ||
might degrade the quality of the output. (but its a threshold value, and it has been chosen, to mask the noise of a USB card, | ||
which has an amplitude which is 50 times higher than that of a PCI card, so 5 wont loose you any quality on a PCI card) | ||
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.SH AUTHOR | ||
Torben Hohn | ||
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.so man1/alsa_in.1 |
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#!/bin/sh | ||
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for i in *.0 ; do | ||
sed -e "s/!VERSION!/${1}/g" -e "s/!DATE!/`date '+%B %Y'`/g" < ${i} > ${i%%0}1 | ||
done |
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.TH JACK_BUFSIZE "1" "!DATE!" "!VERSION!" | ||
.SH NAME | ||
jack_bufsize \- JACK toolkit client to change the JACK buffer size | ||
.SH SYNOPSIS | ||
.B jack_bufsize bufsize | ||
.SH DESCRIPTION | ||
.B jack_bufsize | ||
jack_bufsize sets the size of the buffer (frames per period) used in JACK. | ||
This change happens on-line (the JACK server and its clients do not need to be | ||
restarted). | ||
.br | ||
When invoked without arguments, it prints the current bufsize, and exits. | ||
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.TH JACK_CONNECT "1" "!DATE!" "!VERSION!" | ||
.SH NAME | ||
\fBjack_connect\fR, \fBjack_disconnect\fR \- JACK toolkit clients for connecting & disconnecting ports | ||
.SH SYNOPSIS | ||
\fB jack_connect\fR [ \fI-s\fR | \fI--server servername\fR ] [\fI-h\fR | \fI--help\fR ] port1 port2 | ||
\fB jack_disconnect\fR [ \fI-s\fR | \fI--server servername\fR ] [\fI-h\fR | \fI--help\fR ] port1 port2 | ||
.SH DESCRIPTION | ||
\fBjack_connect\fR connects the two named ports. \fBjack_connect\fR disconnects the two named ports. | ||
.SH RETURNS | ||
The exit status is zero if successful, 1 otherwise | ||
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.so man1/jack_connect.1 |
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.TH JACK_FREEWHEEL "1" "!DATE!" "!VERSION!" | ||
.SH NAME | ||
jack_freewheel \- JACK toolkit client to control freewheeling mode | ||
.SH SYNOPSIS | ||
.B jack_freewheel [y|n] | ||
.SH DESCRIPTION | ||
.B jack_freewheel | ||
Turns freewheeling mode on (y) or off (n). While in freewheeling mode, | ||
the JACK server does not wait in between process() calls, and does not | ||
read or write data from/to any audio interface. That results in the JACK graph | ||
processing data as fast as possible. Freewheeling makes fast exports to | ||
files possible. | ||
.PP | ||
There is no useful reason to use this tool other than testing. JACK | ||
clients that use freewheeling will turn it on and off themselves. | ||
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.TH JACK_IMPULSE_GRABBER "1" "!DATE!" "!VERSION!" | ||
.SH NAME | ||
jack_impulse_grabber \- JACK toolkit client to grab an impulse (response) | ||
.SH SYNOPSIS | ||
\fBjack_impulse_grabber\fR \fB-d\fR \fIduration\fR [\fI-f\fR (C|gnuplot)] | ||
.SH DESCRIPTION | ||
\fBjack_impulse_grabber\fR is a JACK example client for collecting | ||
impulses recordings from JACK ports. | ||
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.TH JACK_LOAD "1" "!DATE!" "!VERSION!" | ||
.SH NAME | ||
jack_load \- JACK toolkit client for loading in-process clients | ||
.SH SYNOPSIS | ||
\fBjack_load\fR [ \fI-i\fR initstring ] [ \fI-s\fR servername ] [\fI-w\fR ] client-name so-name [ initstring ] | ||
.SH DESCRIPTION | ||
\fBjack_load\fR is a JACK toolkit client. It loads the specified plugin and creates an in-process client. | ||
.SH ARGUMENTS | ||
.PP | ||
The client-name must be a currently unused client name. | ||
.PP | ||
The so-name is the name of file that client code is stored in (typically, \fIclientname.so\fR) | ||
.SH OPTIONS | ||
.TP | ||
\fB-i\fR, \fB--init\fR init-string | ||
.br | ||
initialization string passed to the in-process client. Note that this can also be specified as the last argument on the command line. | ||
.TP | ||
\fB-s\fR, \fB--server\fR servername | ||
.br | ||
Name of JACK server to connect to | ||
.TP | ||
\fB-w\fR, \fB--wait\fR | ||
Wait for a signal (eg. from Ctrl-c) and then unload the client. | ||
.SH AUTHOR | ||
Jeremy Hall | ||
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.TH JACK_LSP "1" "!DATE!" "!VERSION!" | ||
.SH NAME | ||
jack_lsp \- JACK toolkit client to list informtion on ports | ||
.SH SYNOPSIS | ||
\fBjack_lsp\fR [ \fI-s\fR | \fI--server\fR servername ] [ \fI-AclLptvh\fR ] | ||
.SH DESCRIPTION | ||
\fBjack_lsp\fR lists all known ports associated with a JACK | ||
server. It can also optionally list various kinds of information about each port. | ||
.SH OPTIONS | ||
.TP | ||
\fB-s\fR, \fB--server\fR \fIservername\fR | ||
.br | ||
Connect to the jack server named \fIservername\fR | ||
.TP | ||
\fB-A\fR, \fB--aliases\fR | ||
.br | ||
List aliases for each port | ||
.TP | ||
\fB-c\fR, \fB--connections\fR | ||
.br | ||
List connections to/from each port | ||
.TP | ||
\fB-l\fR, \fB--latency\fR | ||
.br | ||
Display per-port latency in frames at each port | ||
.TP | ||
\fB-L\fR, \fI--latency\fR | ||
.br | ||
Display total latency in frames at each port | ||
.TP | ||
\fB-p\fR, \fB--properties\fR | ||
.br | ||
Display port properties. Output may include input|output, can-monitor, physical, terminal | ||
.TP | ||
\fB-t\fR, \fB--type\fR | ||
.br | ||
Display port type | ||
.TP | ||
\fB-h\fR, \fB--help\fR | ||
.br | ||
Display help/usage message | ||
.TP | ||
\fB-v\fR, \fB--version\fR | ||
.br | ||
Output version information and exit | ||
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.TH JACK_METRO "1" "!DATE!" "!VERSION!" | ||
.SH NAME | ||
jack_metro \- JACK toolkit metronome | ||
.SH SYNOPSIS | ||
\fBjack_metro\fR [ \fI-n\fR name ] [ \fI-f\fR hz ] [ \fI-D\fR msecs ] [\fI-a\fR % ] [ \fI-d\fR % ] \fI-b\fR bpm | ||
.SH DESCRIPTION | ||
\fBjack_metro\fR is a simple metronome for JACK. It generates a | ||
synthetic "tick" sound for every beat. Note that is does \fBnot\fR | ||
connect its output port by default - to hear the sound it makes you must | ||
connect them using some other tool. | ||
.SH OPTIONS | ||
.TP | ||
\fB-n\fR, \fB--name\fR | ||
.br | ||
Specify a name for this instance of the metronome. | ||
.TP | ||
\fB-f\fR, \fB--frequency\fR Hz | ||
.br | ||
Define the frequency of the "tick" in Hz. | ||
.TP | ||
\fB-D\fR, \fB--duration\fR msecs | ||
.br | ||
Define the duration of the "tick" in milliseconds. | ||
.TP | ||
\fB-a\fR, \fB--attack\fR %-age | ||
.br | ||
Define the duration of the attack phase of the "tick" as a percentage | ||
of the duration. | ||
.TP | ||
\fB-d\fR, \fB--decay\fR %-age | ||
.br | ||
Define the duration of the decay phase of the "tick" as a percentage | ||
of the duration. | ||
.TP | ||
\fB--b\fR, \fB--bpm\fR bpm | ||
.br | ||
Define the number of beats per minute. | ||
.SH AUTHOR | ||
Anthony Van Groningen | ||
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.TH JACK_CONNECT "1" "!DATE!" "!VERSION!" | ||
.SH NAME | ||
jack_monitor_client \- The JACK Audio Connection Kit example client | ||
.SH SYNOPSIS | ||
.B jack_monitor_client | ||
client-name | ||
.PP | ||
The client-name must be the name of a existing client that monitoring is | ||
to be enabled for. | ||
.SH DESCRIPTION | ||
.B jack_monitor_client | ||
is an example client for the JACK Audio Connection Kit. It enables | ||
monitoring for the specified client. | ||
.SH AUTHOR | ||
Jeremy Hall | ||
.PP | ||
This manpage was written by Robert Jordens <jordens@debian.org> for Debian. | ||
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