Mixer4 : Command Reference


Volume and Pan commands used in the faders.txt file
---------------------------------------------------

t designates an automation time entry.
t	<minutes>	<seconds>	<milliseconds>

v sets track volume at a time entry.
v	<channel>	<level>

p sets pan.
p 	<channel>	<-100 to 100>

dp forces a L/R delay type pan.
dp	<channel>	<-100 to 100>

vca sets the volume of a vca type fader.
vca	<channel>	<level>

VCA: assigns channels to vca fader
VCA:	<vca number 1-8>	<list of channels separated by commas>

inc increases the current automation time position by for all channels
inc	<seconds>

ofs offsets the current automation time position for an individual channel
ofs	<seconds>

rmp makes a volume ramp of variable length.
rmp	<seconds>

mtrim trims all volume entries on all channels.
mtrim	<dB>

scale scales all volume entries on all channels.
scale	<ratio>

trim trims all volume entries on one channel.
trim	<channel>	<dB>


Additional commands used in the faders.txt file
-----------------------------------------------

sub makes a submix channel and assigns channels to it
sub	<submix number 1-8>	<list of channels separated by commas>

subso to solo a submix
subso	<submix number 1-8>

submu to mute a submix
submu	<submix number 1-8>

tmap sets a tempo or meter change.
tmap	<tempo>		<beats>		<measures>

tstamp sets time stamp or start position of channel/file
tstamp	<channel>	<minutes>	<seconds>	<milliseconds>


Effect commands used in the faders.txt file:
--------------------------------------------

band1, band2, band3, or band4 adds a parametric eq.
band1	<channel>	<frequency>	<gain>		<Q>

hshelf adds a high shelf eq.
hshelf	<channel>	<frequency>	<gain>		<Q>

lshelf adds low shelf eq.
lshelf	<channel>	<frequency>	<gain>		<Q>

hp adds a high pass filter.
hp	<channel>	<frequency>

rms adds an rms based linear compressor.
rms	<channel>	<threshold>	<attack>	<release>	<ratio>

comp adds a peak based linear compressor.
comp	<channel>	<threshold>	<attack>	<release>	<ratio>

nlc adds a non-linear compressor with RMS sample window.
nlc	<channel>	<threshold>	<window>	<ratio>

lim adds a zero attack limiter.
lim	<channel>	<threshold>

trev adds a discrete reverb with individual taps.
trev	<channel>	<level>

rev adds a recursive reverb.
rev	<channel>	<level>

rtn sets recursive reverb return level and room size.
rtn	<level>		<room size>

trtn sets discrete reverb return level and room size.
trtn	<level>		<room size>	<taps>

rhp adds a high pass filter to the reverb send
rhp	<frequency>

rlp adds a low pass filter to the reverb send
rlp	<frequency>

pos sets the position (%) of sound source in the room.
pos	<front/back>	<left/right>	<floor/ceiling>

fxg sets effect makeup gain.
fxg	<channel> 	<dB>

ord: sets the order of an effect in the processing chain
ord:<effect>	<channel>	<position 1-11>	


Commands used in the prefs.txt file to control preview mode
-----------------------------------------------------------

pre runs the program in preview mode to render sections.
pre	<on/off>

start sets the start of the rendered section.
start	<minutes>	<seconds>	<milliseconds>

length sets the length of the rendered section. 
length	<seconds>


Timing commands used in the prefs.txt file
------------------------------------------ 

head trims time off the song beginning.
head	<seconds>

tail trims time off the song ending.
tail	<seconds>

xin sets the in-point when reading wave files
xin	<minutes>	<seconds>	<milliseconds>

xout sets the out-point when reading wave files
xout	<minutes>	<seconds>	<milliseconds>

offset moves all automation entries and places time zero at this point.
offset	<minutes>	<seconds>	<milliseconds>


Directory commands used in the prefs.txt file
---------------------------------------------

mixdir sets directory for mix output wave files.
mixdir	<directory name>

predir sets directory for preview.wav files.
predir	<directory name>

bakdir sets directory for backup fader.txt files and statistics.
bakdir	<directory name>

wavdir sets the wave file source directory.
wavdir	<directory name>


Additional commands used in the prefs.txt file
----------------------------------------------

play sets the audio playback mode.
play	<0, 1, or 2>

device sets the ALSA playback device name
device	<name ie. plughw:0,0>

verbo sets the verbosity <amount of text printed out> level.
verbo	<0, 1, or 2>

outbits chooses 16 or 24 bit depth for the output file.
outbits	<16 or 24>

mono L/R channels will be summed to mono output file.
mono	<dB attenuation>

tempo allows the program to read time entries in beats and measures.
tempo	<no additional fields>

oname forces output file name to what follows.
oname	<mix output file name>

tap taps the signal going to the reverb and exports it to a file.
tap	<rtn>

tfields sets the number of time parameters used for fader time entries
tfields	<1, 2, or 3>

xfields sets the number of time parameters used for xin/xout commands
xfields <1, 2, or 3>

sfields sets the number of time parameters used for the preview start time
sfields <1, 2, or 3>

dbps sets the decibel change per second for default volume changes
dbps	<decibels>

launch runs a program when the mix finishes such as a wave player
launch <application>

v=percent sets faders, thresholds, and send/returns to using percent input 

tlist=tab for tracks.txt data to be tab separated instead of using spaces