JAMIN(1) Audio JAMIN(1)NAMEjamin - JACK Audio Mastering interface
SYNOPSISjamin [ options ] [ inport1 inport2 [ outport1 outport2 ]]
jamin-scene <scene-num>
DESCRIPTION
The jamin command invokes JAMin, the JACK Audio Mastering interface
which is based on the JACK Audio Connection Kit, <http://jackit.source‐
forge.net>.
JAMin is designed for professional stereo audio mastering. It provides
of a number of tools: a 1024-band hand-drawn EQ with parametric con‐
trols, a 31-band graphic EQ, 3-band compressor, 3-band stereo width
control, lookahead limiter, boost, and other features.
For the latest JAMin information, see <http://jamin.sourceforge.net>.
OPTIONS-f filename
Load session file filename on startup. If no session file is
specified, JAMin loads "~/.jamin/default.jam" if that exists, or
else uses some system-provided default settings.
-h
Print a brief usage message describing the main jamin options,
including some developer options not intended for normal users.
-j servername
Connect to JACK server servername. Otherwise, use the default
server.
-n clientname
Set JACK clientname used to identify input and output ports.
Otherwise, use "jamin".
-s frequency
Set the spectrum update frequency (per second). The range is 1
to 10 with 10 as the default. Set to 0 to disable spectrum
update.
-c time
Set the crossfade time in seconds. The range is 0.0 to 2.0 with
1.0 as the default. WARNING: fast crossfade times in combina‐
tion with large jack buffer sizes may introduce zipper noise to
some signals (especially sustained sounds in the bass range).
-p
Don't automatically connect any JACK output ports.
Without this option, JAMin will connect to outport1 and outport2
if they were explicitly listed on the command line. If not, it
connects to the first two physical output ports with the string
":playback" in their names.
-i
Use IIR type crossover instead of the default FFT type cross‐
over. The IIR crossover is less CPU intensive but the FFT
crossover may give better results (YMMV).
-r
Load GTK resource information from an example JAMin resource
file. If the -r option is not specified, look for a user-
defined resource file in ~/.jamin/jamin_ui. Otherwise, use the
system-wide GTK settings.
-v
Print verbose output. Use -vv or -vvv for more detail.
-V Print version and copyright information, then quit.
FILES
~/.jamin
Directory containing per-user JAMin data. Created automatically
if it does not already exist.
~/.jamin/jamin_ui
Default resource file for GTK user interface customization, used
when the -r command option is not specified. JAMin provides a
default resource file in ${prefix}/share/jamin/exam‐
ples/jamin_ui. To customize that file, copy it to
~/.jamin/jamin_ui and make changes.
~/.jamin/*.jam
Normal location for user-defined session files. They can be
stored elsewhere, if desired.
~/.jamin/default.jam
If this session file exists, it is loaded by default on startup,
except when overridden by the -f option.
IPC
If JAMin has been built with OSC support enabled it responds to UDP OSC
messages on port 4444.
Messages to /jamin/scene with a numerical argument cause the scene num‐
ber to change. A commaind line tool (jamin-scene) and LADSPA Plugin
(jamin_cont, ID:1912) are provided for remote scene changes.
EXAMPLES
Since jamin is not a standalone program we generally need other pro‐
grams to provide input audio and receive the mastered output. This
example uses alsaplayer with output going to the first two ALSA play‐
back ports:
jackd -R -d alsa -p 2048 -r 44100 &
alsaplayer -o jack -s src -d noconnect song.wav &
jamin src:out_1 src:out_2
That was the brute force method. It is much easier to have qjackctl
start the JACK server and handle its connections. After the server is
running, start jackplayer and jamin. The "transport" option tells
jackplayer (an alsaplayer alias) to start and stop under JACK transport
control.
qjackctl &
jackplayer -d noconnect/transport song.wav &
jamin
Any JACK-aware player such as rezound, ecasound or ecamegapedal can be
used, instead.
A more advanced technique uses ardour for both the source and destina‐
tion. In ardour, run all of your track outputs into a stereo bus, con‐
nect its output ports to JAMin, then run the JAMin outputs back into a
record-enabled stereo track. This allows mixing and mastering at the
same time. If JAMin is already running when ardour reopens the ses‐
sion, it will automatically reconnect all these ports.
qjackctl &
jamin &
ardour
SEE ALSO:
<http://jamin.sourceforge.net>
<http://www.alsa-project.org>
<http://jackd.sourceforge.net>
<http://qjackctl.sourceforge.net>
<http://www.suse.de/~mana/jack.html>
<http://alsaplayer.sourceforge.net>
<http://ardour.sourceforge.net>
<http://rezound.sourceforge.net>
jackd(1)alsaplayer(1)ardour(1)BUGS
Please send bug reports to <jamin-devel@lists.sourceforge.net>.
AUTHORS
Steve Harris is the principal JAMin author and team leader. Other
developers include: Jan Depner, Jack O'Quin, Ron Parker, and Patrick
Shirkey. Alexandre Prokoudine assisted with internationalization and
translated JAMin into Russian.
December 2004 0.95.0 JAMIN(1)
