hello, another command line tools related question came up for me:
is it possible to create harmonization using supervp?
in the forummax apps there is a realtime example for how supervp can be used to build a harmonizer.
i wonder if it is possible to create a mix of multiple “voices” with different pitches using the command line tools.
of course the result should be a single soundfile (a sum of n “voices”) instead of n seperate soundfiles…
thanks for help!
ciao, johannes
Hi Johannes,
The Ircamax collection have an object that does this :
But this is for Ableton live.
HTH
Best,
Charles
hey charles, good to know. but i guess this is a realtime process as well.
i need to process the soundfile in non-realtime.
any workarounds?
may be via programming to run multiple supervp pitchshift processes and than mix them…
thanks for your reply, jo
Hello Johannes
sure, you can run as many supervp processes as you like and mix the results together. But this is obvious so I wonder what the question here was?
If you need to mix with a command line then yes you can mix with supervp, but this requires to first create the individual output files and then you can mix them using the -mixlist flag. Please see
-mixlist :
in the supervp help pages that you find under the menu help -> supervp help -> input parameters. You see there that you can mix your input files into arbitrary channels at arbitrary time positions with arbitrary mixing factors. Please note, however, that if you use -mixlist then any supervp processing is applied after mixing the inputs together, so that’s why you need the transposed files before if you want to create a harmonization.
Best
Axel
hey axel,
thanks for the reply.
is it possible to process the transpositions in parallel instead of sending 3 separat massages to the shell object?
ciao, johannes
Hi Johannes,
As Axel told you, no you cannot process the transpositions in parallel with a single command (and the mixlist).
You will have anyway to process your files and apply the transposition for each separately.
Then you can mix the processed audio files using the :
Best,
Charles
hello charles and axel,
thanks for clarification and patience! the whole command line thing is pretty new to me.
I’ve some problems to get my head around -mixlist.
for now i build a max patch that does the transposition part (creating 3 files with different pitches from one input file)
but sending the following message to the max shell external doesn’t do anything:
/Applications/AudioSculpt\ 3.2.4/Kernels/supervp -t
-S/Users/j/Desktop/Cross-synthesis/IRproc/Proc_multPitch.wav
-mixlist /Users/j/Desktop/Cross-synthesis/scripts/mix.txt
the corresponding max generate .txt file:
“/Users/j/Desktop/Cross-synthesis/IRproc/irProc_5-0.wav”
[1/0, 1, 0.33]
[2/0, 2, 0.33]
“/Users/j/Desktop/Cross-synthesis/IRproc/irProc_5-1.wav”
[1/0, 1, 0.33]
[2/0, 2, 0.33]
“/Users/j/Desktop/Cross-synthesis/IRproc/irProc_5-2.wav”
[1/0, 1, 0.33]
[2/0, 2, 0.33]
of course i also tried the -par prefix instead of .txt as suggested in the supervp reference but to no avail.
is it because i need to define a “start time 2” in the parameter file?
well, shouldn’t the script above(and the parameter file) create a file called
Proc_multPitch.wav
at /Users/j/Desktop/Cross-synthesis/IRproc/?
and should the file be an equal mix(3 * 0.33) of the 3 input files, that i define in para file?
thanks for taking the time,
alles gute.
johannes
Hello Johannes,
for supervp command line the filename given with -S is always an input file, the files given in the mixlist files are mixed into the input file. Your input file can be empty having no channels, but you need one. Additional channels will be created acording to the mix. The output file has to be specified as the last argument to supervp. If there is none (as in your example) the result is send to stdout.
I think the following should do what you want ( I am sure you can find a more elegant way that does not require the mixing of the main file with negative factors
/Applications/AudioSculpt\ 3.2.4/Kernels/supervp -t
-S “/Users/j/Desktop/Cross-synthesis/IRproc/irProc_5-0.wav” -mixlist /Users/j/Desktop/Cross-synthesis/scripts/mix.txt /Users/j/Desktop/Cross-synthesis/IRproc/Proc_multPitch.wav
“/Users/j/Desktop/Cross-synthesis/IRproc/irProc_5-0.wav”
[1/0, 1, -0.66]
[2/0, 2, -0.66]
“/Users/j/Desktop/Cross-synthesis/IRproc/irProc_5-1.wav”
[1/0, 1, 0.33]
[2/0, 2, 0.33]
“/Users/j/Desktop/Cross-synthesis/IRproc/irProc_5-2.wav”
[1/0, 1, 0.33]
[2/0, 2, 0.33]
hey axel, thanks for your help.
i tried what you suggested and yes, now a new wav file is created on disk.
but its size is only 400 byte… so i guess something went wrong here.
any additional argument needed?
this is how everything looks now:
the shell message:
/Applications/AudioSculpt\ 3.2.4/Kernels/supervp -t
-S “/Users/j/Desktop/Cross-synthesis/IRproc/irProc_8_0.wav” -mixlist /Users/j/Desktop/Cross-synthesis/scripts/mix.txt
/Users/j/Desktop/Cross-synthesis/IRproc/multPitch.wav
and the mix.txt:
“/Users/j/Desktop/Cross-synthesis/IRproc/irProc_8_0.wav”
[1/0, 1, -0.66]
[2/0, 2, -0.66]
“/Users/j/Desktop/Cross-synthesis/IRproc/irProc_8_1.wav”
[1/0, 1, 0.33]
[2/0, 2, 0.33]
“/Users/j/Desktop/Cross-synthesis/IRproc/irProc_8_2.wav”
[1/0, 1, 0.33]
[2/0, 2, 0.33]
if you want to follow… i send you 3 pitchshifted files.
thanks, johannes
Archiv.zip (4.39 MB)
If you use quotes (") in the mixlist parameter file then you need to be sure that these are
ASCII double quotes. The ones here in the discussion are unicode quotes that are not properly handled
as quotes by supervp. In fact you don’t need to put quotes anyway. So this
/Users/j/Desktop/Cross-synthesis/IRproc/irProc_8_0.wav
[1/0, 1, -0.66]
[2/0, 2, -0.66]
/Users/j/Desktop/Cross-synthesis/IRproc/irProc_8_1.wav
[1/0, 1, 0.33]
[2/0, 2, 0.33]
/Users/j/Desktop/Cross-synthesis/IRproc/irProc_8_2.wav
[1/0, 1, 0.33]
[2/0, 2, 0.33]
It seems the max object does not transmit error messages.
If you have a problem you can simply use the command line and run it in the terminal.
Then you get proper error messages that should help you to fix problems. Here you would have got
Initializing…
Processing…
can’t open mixer input sound file `“/Users/j/Desktop/Cross-synthesis/IRproc/irProc_8_0.wav”’
You see the quotes are remaining
Best
Axel
hey,
for everyone who is interessted in harmonizing/multipitching using the supervp kernel from within max 6.1,
i append a simple 3 voice multipitcher with adjustable pitches and amplitudes. (you will also need ircam´s
ftm lib and the shell external to get it work).
to be clear: its non-realtime. it will write 4 files on your
disk in the multipitch/procfiles folder – 3 with different pitches and 1 with the mix.
to test it, you will have to place the appended folder on your desktop and to select your latest
audiosculpt 3.2 version in the patch.
todo:
one thing i didn’t manage in the patch is the use of soundfiles with sample rates higher than 44.1 khz. the pitched
files will not be created correctly if you use for example a soundfile with 96khz sr. i guess i will have ask for
the sr of the soundfile before the whole processing to change the sr in svp, right?
i hope it works for you. change it as you like, ask if you don´t get it.
iam looking forward to your feedback, improvements, etc.
ciao, johannes
multipitch.zip (9.84 KB)