Composers Desktop Project Forum

Here is a script I enjoyed. You'll need to set the notedata file location. It starts off by recording for 2 seconds, if you'd rather use prerecorded audio switch sysutils_recsf( 2 ) with f[ i ]. You can make numOuts larger to run it multiple times in parallel (it will record linearly for 2*numOuts seconds at the start).
notedata = "PATH HERE/notedata.txt"
numOuts = 1

getmetatable('').__index = function( str, i ) return housekeep_chans( 1, i, str ) end
getmetatable('').__call = function( str, l ) return modify_loudness( 4, "-l" .. ( l or 1 ), str ) end

function makestereo( ... )
local arg = {...}
local stereos = {}
for i = 1, #arg/2 do stereos[i] = multichannel_interlx( arg[2*i-1], arg[2*i] ) end
return unpack( stereos )
end

recordings = {}
outputs = {}
for i = 1,numOuts do recordings[i] = sysutils_recsf( 2 ) end
for i=1,numOuts do
outputs[i] = texture_postornate( 1, notedata, 30, .5, --notedata outdur skiptime
1,1,  36,64,  3,3,  --sndfirst sndlast mingain maxgain mindur maxdur
0, 2, 1, 0, 3, --phgrid grpspace gpsprange amprise contour
0.15,0.4, --multlo, multhi
housekeep_chans( 4, recordings[i] )(.5) )(.8)
end

return modify_loudness( 4, "-l0.8",
makestereo(
pvoc_synth(
blur_selfism( 4,
blur_drunk( 4, 2, 12, "-z",
pvoc_anal( 1,
housekeep_chans( 2,
unpack( outputs ) )))))))
Using this notedata:
60
#8
0.0 1 60 0 0
0.5 1 67 0 0
1.0 1 72 0 0
1.5 1 67 0 0
2.0 1 62 0 0
2.5 1 69 0 0
3.0 1 74 0 0
3.5 1 69 0 0
#5
0.0 1 60 0 0
0.0 1 62 0 0
0.0 1 64 0 0
0.0 1 67 0 0
0.0 1 69 0 0
#8
0 1 60 30 20
1 1 62 30 20
2 1 64 30 20
3 1 67 30 20
4 1 69 30 20
5 1 72 30 20
6 1 69 30 20
7 1 67 30 20


Running into a problem with recsf. Using Juce::ChildProcess you can't send input to the spawned process so it can't be started (it requires a keypress to begin recording).

I could use juce for the recording in that function but I'd rather not. Thoughts?

I'm not normally in the business of self bumping but I've finished a new version of this. There is now a mapping of almost every cdp process on the lua side. Mostly untested but enough works to do some cool things. You can write code like this:

return
   modify_loudness( 3,
   pvoc_synth(
   blur_blur( 100,
   pvoc_anal(
   housekeep_chans( 2,
   housekeep_respec( 1, 48000,
   unpack( f )))))))

Which takes every input given, resamples to 48000, splits all multichannel files into multiple mono files, blurs, and returns all results normalized. You can process in loops! Anything transforming a set number of inputs to a set number of outputs can take any number of files divisible by the input group size, e.g. something taking two inputs and making one output can take ten inputs and gives five outputs. Order of arguments is mode (if applicable), parameters, flags (in quotes e.g. "-r100"), infiles.

Google drive link in the op is updated version.

Yeah I don't think library implementations exist either hence saying I wish it existed, but I think it has a better shot at existing if the community could help with things (like the bugs and leaks you mention). Emailing a bit with Archer it seems that things are still being worked on even if it is slow going.

Welcome to the forum, always good to see a new face. It's a slow moving place but move it does. I check in pretty often and I think a few others do too.

I'm creating lua mappings for every process and in doing so I am occasionally seeing inconsistencies in processes and the documentation found here http://www.ensemble-software.co.uk/CDPDocs/html/ccdpndex.htm. I'll record anything I notice that seems noteworthy here for others to reference or correct.

Documentation errors:

    Housekeep Gate
    This process has 5 modes, the documentation doesn't list this as a modal process.

    Sndinfo Diff
    This is listed twice in the documentation.

    PSOW grab
    Density and spectrans are flipped by order.

    Distort Pulsed
    Missing the env parameter.

    Shifter
    Both modes missing the dur parameter.

Process errors:

    Gate Gate 2
    When cutting out enough sound this process is causing extreme pitch changes over time.

    Modify Shudder
    There is some kind of file name handling error in here that is cutting out a bunch of the output file name.
    Also, "outfilename – note that a '0' will replace the last character of your given outfile name"
    This isn't an error but it is ridiculous.

    Synth Spectra
    When running this, both the files mentioned are created... but the file with 1 appended is immediately deleted? It's
    always something. The doc is missing some parameter, range starting at 16k.

    Iterline
    I always receive out of memory errors.

    Madrid
    I get "[CDP] ERROR: INVALID DATA
    ERROR: Cannot open output file C:\Users\Logan\Desktop\Altar\Altar1470210899998\0_altar" for all inputs I've tried.
    It always strips the extension.
    This is probably fixed but I can't find it again.
   
    ptobrk
    No matter what I enter after ptobrk it always does nothing more than tell me how to use ptobrk.

Gripes:
    Housekeep Copy 2
    Would be nice to be able to specify the path this outputs to.

    Processes outputting multiple files have vastly different output naming schemes.

Alright, makes sense. I was glad to hear you're using JUCE, I'll be ready to poke at it whenever you decide to put it out.

Well, there's not a huge amount a screenshot will show but I'll post what I have. The concept I'm working on only has a small gui for getting files in, managing processing threads (working on this now, I've never dealt with threads so it's taking some extra time) and seeing the output. The actual descriptions for how the audio should be processed are in a Lua script which is invoking c functions which call CDP modules.

One of the things I think is missing from most front-ends is pure programmatic control. Being able to take a file and iteratively process it 1000 times, or applying a number of processes in some algorithmic way is hard to do without access to the control flow structures of a plain old programming language.

There are a few important bits still missing but it is in working condition. I'll post a proper exe download once threads are done-ish. Still need to add drag and drop to reorder list items, running scripts in threads, being able to start a cdp module without blocking the current thread, and helper functions for individual processes deemed important enough. Currently the only helper function is normalize although that may not be on github.

Source and a screenshot:

https://github.com/loganmcbroom/Altar
http://i.imgur.com/PPhinWM.png?1

I haven't used github before so if I've committed some faux pas let me know. I'm also fairly inexperienced so if you see any programming goofs point them out.