Iannix, Open Sound Control, Arduino.
Hello everyone, I have a question, i want to start performing with my sound drawings live; my sound drawings are reproduced with sine waves, I use Iannix for composition and Pure Data reproduces the score. But for live performance it ocurred to me to reproduce them with police sirens. Iannix communicates with Pure Data through Open Sound Control. Arduino does not support open sound control directly, there must be a bridge that converts open sound control to serial data that arduino can understand, i researched and that bridge can be pure data, (i could make the police siren through arduino).
My question is if arduino can reproduce the iannix curves just like pure data does, that is, reproduce the iannix curves exactly like they are written, i use iannix curves mainly for composition, these curves can play separate notes or glissandi...
I use open sound control and sine waves because that is the only way to reproduce the iannix curves exactly the way they are written (midi does not follow the curve exactly, osc can, and i enjoy the sound). (the curves can be in any direction and last as long as i want with any kind of shape, acceleration or slowing down, and open sound control and the sine waves can follow them perfectly, but not midi)
So... I am willing to learn how to code for arduino if it can reproduce my scores the way they are written (just like pure data has done), i gotta feeling that it is possible, but before buying an arduino card i want to know for sure.
Here is an example of a iannix score:
So iannix would send open sound control to pure data, pure data would convert open sound control to serial data and arduino would receive the serial data and play the score through a speaker.
can this be done? thanks.
Automating vline~ envelope from a waveform (envelope as wavetable
Hi everyone,
I'm working on a system to automatically generate a vline~ message list starting from a custom envelope shape stored in an array, originally extracted from a .wav file.
I want to build a dynamic vline~ list like this: 0, 1 93.753, 1 0 187.506
But instead of typing values manually, I'd like to generate it automatically based on the shape of an envelope loaded from a waveform (array).
I already convert the array index to milliseconds using: [expr ($f1 / 44100) * 1000]
And I can manually draw or extract the envelope into an array — but I’m struggling to automate the construction of the vline~ list so it correctly represents:
- attacks
- holds
- releases
- plateaus (ecc)
at the moment i Load a .wav file containing an envelope shape, Store it into an array. Detect meaningful breakpoints (e.g. slope changes, thresholds) and Use those to automatically create a proper vline~ sequence.
here the patch and one env wav file
impose-envelope-wavetable-analog.pd
strike-1_6.wav
Is there a way to extract breakpoints or slope changes from an array to build a proper vline~ message?
Has anyone implemented something similar (using an envelope from a .wav as a wavetable)?
Would “wavetable envelope” be a good term for this? Is there a better one in Pd terminology?
Thanks in advance if anyone has ideas or guidance.
Even partial thoughts or pointers would help a lot!
I almost forgot: At the moment, I’m using GPT to convert the vline~ list into the format 0, 1 93.753, 1 0 187.506 (just an example), starting from a total duration in milliseconds — in this case, 2176 ms. This naturally results in very complex lists, like something along these lines:
0, 1 100, 0.6 400 100, 0.3 2000 500, 0.15 3000 2500, 0 10491 5500
I’d really like to find a way to resolve this and automate the process, but since I’m still a beginner, I wonder if I’m just making things unnecessarily complicated?
Emiliano
ELSE 1.0-0 RC13 with Live Electronics Tutorial Released
Ok, the cat is out of the bag --> https://github.com/porres/pd-else/releases/tag/1.0-rc13 I'm officialy announcing the update and uploaded binaries to deken for mac (intel/arm), Win and Linux. It all looks ok but tell me if you see something funny please. There's also a raspberry pi binary but not working 100%yet and we'll still look into that. Hopefully someone could help me/us with it. I might make another upload just for the pi later on if/when we figure it out. Find release notes and changelog below.
RELEASE NOTES:
Please support me on Patreon https://www.patreon.com/porres I'll now try to add special content for subscribers. You can follow me on instagram as well if you like... I'm always posting Pd development stuff over there https://www.instagram.com/alexandre.torres.porres/
It's been a little bit over 7 months since the last update and I almost broke the record for taking too long to release an update (which had happened in my previous update). So yeah, there's just too much to talk about! I guess the delays in releasing updates is because it's been a little tricky and hard to sync the release cycles of ELSE with PlugData, which includes ELSE in its download.
Plugdata 0.9.2 should come out soon with ELSE RC13 and it's supposedly the last update before 1.0.0, so I've heard. And the plans was to get to that still in 2025! This means ELSE could be at its last "Release Candidate" phase as I'm aiming to sync the final release with PlugData. Until then, I'll still make breaking changes and I can't wait until I can't do that anymore as I really feel bad. On the other hand, it's kind of inevitable when I'm always adding new stuff and redesigning and reconfiguring objects to include more functionalities. And I always got a lot of new stuff! So I'm thinking that I will eventually try some mechanism like Pd's compatibility flag or something. I'll try to come up with something like that in the next update.
This update has 22 new objects for a total of 573 and 26 new examples in my tutorial for a total of 554 examples. Let's dive into the highlights (see full changelog below after the release notes).
-
Multichannel Support: Last release had 92 MC aware objects, now it's 139! Over a 50% increase that include old and new objects (all the new ones have been coming with MC support). Virtually all oscillators and envelope generators now have MC support, plus some other random ones. Let me highlight the new [lace~]/[delace~] objects that are 'MC' tools that perform interleave/deinterleave in Multichannel connections. My bare minimum number of objects "to start with" would be at least a bit over half the number of signal objects. That was my target for 1.0! ELSE right now has 319 signal objects, so that'd be at least 160. I will definitely pass this milestone in the next update. I guess a good number of MC objects would be around 75% of the signal objects. I will aim for that as soon as I can. Some objects simply can't be MC at all, so 100% will never be the case, but maybe an ideal 90% eventually? We'll see... I am just proud and happy that ELSE is taking such a big jump on MC awareness in less than a couple years.
-
Envelope generators ([adsr~]/[asr~]/[envgen~]/[function~]) now have more curve options. For [adsr~]/[asr~] the default is now a new log curve that you can set the curve parameter (and was 'stolen' from SuperCollider). A new [smooth~] family of objects perform the same kind of curved smoothening for alternating inputs - [envgen~] and [function~] also have that but also '1-pole' filtering, 'sine' and 'hann' curves. You can now trigger [adsr~] and [asr~] with impulses.
-
The [play.file~] object now supports even more file formats besides MP3 and stuff. Hey, you can even stream the supported formats from weblinks! The [sfload] object (which loads files into arrays) also gained support for more formats and can download from weblinks as well! It also has a new threaded mode, so loading big files won't choke Pd. It now also outputs the file information, which is a way to tell you when loading finished in threaded mode. The [sample~], [player~], [gran.player~] and [pvoc.player~] objects are now also based on [sfload], so they support all these file formats!!! Now [sample~] and [tabplayer~] are integrated in a way that [tabplayer~] is always aware of the sample rate of the file loaded in [sample~] (so it reads in the "correct speed"). A new [sfinfo] object is able to extract looping regions and instrument metadata information from AIFF files (which is something I wanted for ages) - it should do more stuff in the future.
-
[knob] has become the ultimate featured bloated creep GUI I always feared and avoided. MAX is envy! but I'm happy with this structure and I want to replicate in other GUIs in the future (yeah, I got plans to offer alternatives to all iemguis). I wanna highlight a new 'param' symbol I added that allows you to remotely set a particular method in an object, so you don't to connect to a "method $1" message and you can even do this wirelessly with a send symbol. [knob] now also acts like a number box, where you can type in the value, which may also be displayed in different ways or the value can be sent elsewhere via another send symbol so you can temper with it using [makefilename] or [else/format]. I've been using this for the MERDA modules and it's really cool.
-
We finally have a [popmenu] GUI object! This was in my to do list forever and was crucial to improve the MERDA modules to set waveforms, instruments and whatnot.
-
Let's about MERDA, the "Modular Euroracks Dancing Along" subset of abstractions in ELSE. It was first released in the last update and it's been driving lots of the development in ELSE as you can see. I now added a MIDI Learn feature for all knobs that feels great and quite handy! There are many fixes and improvements in general and some new modules. I wanna highlight the new [sfont.m~] module, which loads "sound font" banks and you can just click on a [popmenu] to choose the instrument you want. The default bank has numerous (hundreds) options and also comes with PlugData. The sequencer module [seq8.m~] was rather worthless but it's now a whole new cool thingie. It allows you to set pitches with symbols and even has quarter tone resolution. I added a right outlet to send impulses to trigger envelopes and stuff (there's still more stuff of course, see full changelog below).
-
There are newly designed/renamed/recreated [resonbank~]/[resonbank2~] objects that are well suited for Modal Synthesis.
-
What actually drives my development is my Live Electronics tutorial, which got a fair upgrade with a new chapter on Modal Synthesis amongst other things, such as new subtractive synthesis examples and a revision of envelope generators with examples on AHDSR and DAHDSR - by the way, there are new gaterelease~/gatedelay~ objects for handling envelopes (and other processes).
-
I have to thank some people. Tim added 'zoom' to the [pic] object, as well as an image offset. Tim also implemented a new and better technique for bandlimited oscillators. Ben Wesh gave me a new [scope3d~] GUI object, pretty cool, that plots an oscilloscope in 3 dimensions, which is coded in LUA - and ELSE has been carrying a modified version of [pdlua] because it now depends on it for a couple of GUIs. Tim and Ben made many improvements to [pdlua] (as well as Albert Graef, of course).
-
For more new objects, let me also tell you about the simple and cool [float2imp~], that is based on [vline~] and can convert floats to impulses with sample accuracy (don't know why I didn't think of that earlier). A new [tanh~] object has Multichannel support. A bit earlier I made an update to Cyclone that actually "borrows" and includes this one from ELSE instead of its original one (which does not have Multichannel support). PlugData users will load the one from ELSE. This is another tiny step that sort of integrates ELSE and Cyclone, specially for PlugData users.
happy patching.
CHANGELOG:
LIBRARY:
Breaking changes:
- [adsr~]/[asr~]: now a gate off before reaching the sustain point does not start the release right away (this allows you to trigger it with impulses). There's a new mode just for immediate release. There's a new exponential setting for curve factors, the old 'log' mode is renamed to 'lag' as it's the same as used in the [lag~] object. For [adsr~], a bang now is not "retrigger", but an impulse at control rate, there's a new 'retrigger' message for control rate retriggering (and now it only retriggers if the gate is on). For [asr~] a bang now also works like an impulse.
- [sample~]: no more 'load' message, args to 'open' message changed, size is now only in 'ms'.
- [format]: outputs are now always symbols, before you could get float outputs. Also, we just have a simplified symbol output, no more lists or anythings. Hopefully I'll be able to get the 'list' output back, but it involved some bugs that I couldn't fix so I just removed it. You cannot use bangs and lists in secondary inlets no more (this is cylone/max crappy paradigm we don't want here). Bang method was actually removed as well.
- [pack2]: no more support for anythings, also no more support for lists in secondary inlets and output has a list selector (I wanna make this more Pd like and not a silly clone from MAX's [pak], cause fuck MAX).
- [merge]/[unmerge]/[group]: no more '-trim' flag (again, respecting pd's usual list paradigm), in [merge] now there's no more 'hot' argument and a bang now represents an empty list and inlets initialized with empty lists
- [mono]: 1st argument is now 'glide' in ms.
- [sfont~] now uses 'mma' for bank selection (this alters how CC messages set the bank number).
- [player~]/[play.file~]: 'open' message does not play files right away anymore.
- [tabplayer~]/[player~]: play message without args now play at the default settings (whole file at regular speed).
- [envgen~]: removed the 'maxsustain' parameter, use the new [gaterelease~] or [gaterelease] objects instead. Removed the rightmost inlet just to set envelopes, now a list input only sets the envelope and doesn't trigger it. The 'set' message is then removed.
- [envgen~]/[function~]: simplified and got rid of '-exp' flag and message, also deleted 'expl' and 'expi' messages. A new 'curve' and cimpler message sets exponential factors for all or individual segments, and includes more curve formats.
- [knob]: 'esc' key now deactivates the object. The 'ticks' message is renamed to 'steps' and there is a new 'ticks' message that toggles showing ticks on and off. The 'start' message has been renamed to 'arcstart'. The 'outline' message has been renamed to 'square' for better clarity. Design changed a bit to make it like it is in PlugData (they won), so we now fill the whole background color when in 'square mode' and the knob circle has an 85% proportion in this case inside the full 100% square size (so it grows bigger when not in 'square' mode). Now, by default, the GUI is in a new 'loadbang' mode (I don't think this will influence old patches). I'm afraid some old patches might behave really weird since I added a lot of new stuff. I changed the 'load' message behaviour to not update the object (this can arguably be considered a bug fix).
- [wavetable~], [bl.wavetable~] and [wt2d~]: 'set' message now sets frequencies because of the MC support in [wt~] and [wt2d~], while there's a new 'table' method to set the table name.
- [gbman~]/[cusp~] list method is now for MC, old list method is now renamed back to an old 'coeffs' method.
- [f2s~]/[float2sig~] default value is now 10 ms.
- [op] now behaves like [*~] where the smaller list wraps til reaching the size of the longer one.
- [list.seq] does not loop anymore by default.
- [impseq~] list input removed, use the new [float2imp~] object to convert floats to impulses.
- [resonant~] now has 'q' as the default.
- [resonant2~] has been removed.
- [decay2~] has also been removed ([asr~] much better).
- [vcf2~] has been renamed to [resonator2~].
- [resonbank~]/[resonbank2~] have basically been deleted and replaced by new objects with the same name... [resonator~] is based on a new [resonator~] object which is similar to [resonant~] and [resonbank2~] is now based on [resonator2~] (old [vcf2~] instead of [resonant2~] that got deleted). These are well suited objects for Modal Synthesis.
- [oscbank~] now uses a 'partial' list and not a frequency list. The freq input now defaults to '1' and this makes [oscbank2~] completely obsolete.
- [oscbank2~] has been deleted since it became completely obsolete.
- [sfload] load message changed the behaviour a bit.
Enhancements/fixes/other changes:
- [adsr~]: We have now a new mode for immediate release (see breaking changes above, I'm not repeating it). Fixed ADSR signal inputs (it was simply not really working, specially for linear). Fixed status output for MC signals. There's a new curve parameter that allows you to set the curvature.
- [asr~] I actually just made the new [adsr~] code into a new [asr~] code as a simplified version (as it was before)... so it's got the same impromevents/fixes.
- [play.file~]: added support for more file formats and even weblinks for online streaming!
- [sfload]: added an outlet to output information, added threaded mode, added support for more file formats and even weblinks for downloading.
- [sample~], [player~], [gran.player~] and [pvoc.player~] are now also based on [sfload], so they support more file formats!
- [sample~]: improved extension management with [file splitext].
- [sample~] and [tabplayer~] now are automatically integrated in a way that [tabplayer~] is always aware of the sample rate of the file loaded in [sample~], so it automatically adjusts the reading speed if it is different than the one Pd is running with.
- [numbox~]'s number display is not preceded by "~" anymore (that was just kinda stupid to have).
- [format]: fixed issues where empty symbols and symbols with escaped spaces didn't work. Added support '%a' and '%A' type. Added support for an escaped 'space' flag. Improved and added support for length modifiers. Improved syntax check which prevents a crash. Improved documentation.
- [knob]: added new 'param', 'var', 'savestate', 'read only', 'loadbang', "active", "reset" and 'ticks' methods. Added the possibility to type in number values and also modes on how to display these number values, plus new send symbols for 'activity', 'typing', 'tab' and 'enter'. New design more like plugdata. Changed some shortcuts to make it simpler. If you have the yet unreleased Pd 0.56-0 you can also use 'double clicking' in the same way that works in PlugData. Properties were also significantly improved (I'm finally starting to learn how to deal with this tcl/tk thingie). Yup, a lot of shit here...
- [autofade2~]/[autofade2.mc~]: fixed immediate jump up for 0 ramp up.
- [synth~]: fixed polyphony bug.
- [metronome~]: fixed bug with 'set' message.
- [midi2note]: fixed range (octaves 0-8).
- [pulsecount~]: fixed reset count to not output immediately, added bang to reset counter at control rate
- [click]: fixed regression bug where it stopped working.
- [else]: new 'dir' method to output ELSE's binary directory in a new rightmost outlet. The print information also includes the directory.
- [pic]: added zoom capability finally (thanks to tim schoen) and added offset message (also thanks to tim).
- [store]: added 'sort' functionality.
- [scales]: fixed octave number argument. Added functionality to allow octave number as part of the note symbol.
- [mono]: added 'glide' parameter, as in [mono~].
- [pluck~]: fixed list input.
- [rescale]/[rescale~]: added a "reverse log" mode.
- [limit]: added a new second ignore mode.
- [graph~]: added an external source input for plotting the graph and a 'clear' message.
- [canvas.setname]: added a new argument for "abstraction mode" and methods to set name, depth (and mode).
- [midi.learn]: added a new argument for "abstraction mode", fixed 'dirty' message sent to parent.
- [brickwall~]: fixed initialization.
- [list.seq]: added a loop mode and a 2nd outlet to send a bang when the sequence is done.
- [delete]: fixed index for positive numbers.
- [dust~]: added 'list', 'set' and '-mc' flag for managing the already existing Multichannel capabilities.
- Thanks to Tim we have many fixes and a whole new technique for band limited oscillators. Now [bl.saw~], [bl.saw2~], [bl.vsaw~], [bl.square~], [bl.tri~], [bl.imp~] and [bl.imp2~] have been redesigned to implement elliptic blep, which should provide better anti-aliasing.
- [parabolic~] now uses and internal wavetable for more efficiency.
- [resonant~]: added 'bw' resonance mode.
- [lowpass~]/[highpass~]: added 't60' resonance mode.
- [quantizer~]/[quantizer]: added a new mode, which combines floor (for negative) and ceil (for positive) values.
- [crusher~]: now uses the new [quantizer~] mode from above (arguably a breaking change).
- [envgen~]: fixed a bug (actually a misconception) where ramps started one sample earlier. Fixed 0-length lines. Added a possibility to set time in samples instead of ms. Maximum number of lines is now 1024. Added loop mode. Added many curve options (sin/hann/log curve/lag).
- [function~]: Added many curve options (sin/hann/log curve/lag).
- [The out~] family of abstractions now use [bitnormal~] so you won't blow your speakers beyond repair in edge cases.
- [trig.delay~]/[trig.delay2~]: fixed bug where impulse values different than '1' didn't work.
- Added MC support to: [trig.delay~], [trig.delay2~], [gatehold~], [vca.m~], [gain2~], [decay~], [asr~], [envgen~], [function~], [bl.osc~], [bl.saw~], [bl.saw2~], [bl.vsaw~], [bl.square~], [bl.tri~], [bl.imp~], [bl.imp2~], [imp2~], [tri~], [saw~], [saw2~], [vsaw~], [square~], [pulse~], [parabolic~], [gaussian~], [wavetable~], [wt2d~], [randpulse~], [randpulse2~], [stepnoise~], [rampnoise~] [pink~], [gbamn~], [cusp~], [gray~] and [white~].
- Also added MIDI input and soft sync to [imp2~], [tri~], [saw~], [saw2~], [vsaw~], [square~], [pulse~], [gaussian~] and [parabolic~].
- [wavetable~] and [wt2d~] gained args to set xfading.
- Updated pdlua to 0.12.23.
- M.E.R.D.A: Added MIDI-LEARN for all modules (this is only for the knobs). Replaced some number boxes that were attached to knobs by an internal number display mechanism (new feature from knob). Improved interface of [gendyn.m~]. Preset/symbol name fixes to [flanger.m~]. Now we have automatic MIDI mode detection for [plaits.m~] and [pluck.m~] when no signals are connected (still trying to get plaits right, huh? Yup! And bow MIDI input with monophony and trigger mode has been fixed in [plaits.m~]). Added MC support to [vca.m~]. Increased range of [drive.m~] down to 0.1. Changed some objects to include the new [popmenu] GUI. [vco.m~] now uses the new MC functionalities of oscillators and doesn't need to load abstractions into [clone], I hope it makes this more efficient and clean. The [seq8.m~] module was worthless and got a decent upgrade, it's practically a new module. Added new modules (see below). Note that MERDA is still at alpha development phase, much experimental. Expect changes as it evolves.
- 22 new objects: [float2imp~], [lace], [delace], [lace~], [delace~], [gatehold], [gatedelay],[gatedelay~], [gaterelease~], [gaterelease], [popmenu], [scope3d~], [tanh~], [resonator~], [sfinfo], [smooth], [smooth2], [smooth~], [smooth2~], [dbgain~], [level~] plus [crusher.m~], [sfont.m~] and [level.m~] MERDA Modules.
Objects count: total of 573 (319 signal objects [139 of which are MC aware] and 254 control objects)!
- 323 coded objects (210 signal objects / 113 control objects)
- 227 abstractions objects (87 signal objects / 140 control objects)
- 23 MERDA modular abstractions (22 audio / 1 control)
TUTORIAL:
- New examples and revisions to add the new objects, features and breaking changes in ELSE.
- Added the MERDA modules into the examples for reference.
- Revised section on envelopes.
- New subtractive synthesis examples.
- New chapter on Modal Synthesis.
- Total number of examples is now 554! (26 new ones)
How to use the bezier option in an array?
Arrays have an option to generate a bezier curve. In the attached patch, seven points are put into an array and displayed as a bezier curve. It looks nice, but does it have any function? When you read the array, you just get the points you put into it, not the points on the bezier curve. Is there a way to use the bezier curve as a wavetable or envelope, instead of the original seven points?
bezier.pd
Envelope and LFO
@alexandros said:
@ddw_music you can't really square the value in case it's a volume envelope, because that will square the sustain value as well, and that will reduce the actual value.
Fair -- squaring is a bit of a hack to make up for the lack of a curved-segment envelope generator (like EnvGen in SC, where segments can be linear, exponential, sinusoidal, curved by a curve factor, maybe a couple others, built-in ).
hjh
Envelope and LFO
I'm new to PD and don't really understand how it works and I need urgent help with a practice, it consists of the following:
a. Design and implement an envelope.
b. The envelope should work as a subpatch.
c. Test the envelope using an LFO and some kind of signal generator. You can use any kind of synthesis.
d. Show at least two practical examples of the use of the envelope.
Expected results
You should have a patch showing the use of the envelope. This should show:
• The envelope as a subpatch.
• The LFO as a subpatch showing the main controls.
• A patch demonstrating the usefulness of the low frequency oscillator and the envelope. This demonstration should be clear and well-founded.
o Sound generation
o Drum synthesis
Please, someone help me
PlugData GraphOnParent not showing the controls in parent patch
Graph-on-parent is fine in PlugData. (Editorial comment: PlugData is a much-needed effort to move Pd's UI away from three-decades-old standards... assuming that it's wrong just because it's new IMO contributes to stasis, which is not healthy for the platform.)
The problem is in the structure of your patch.
sfplayer.pd is not a graph-on-parent patch. I can see this by opening it in regular Pd, and right clicking on the empty space --> Properties. The graph-on-parent property is not selected at the top level. So there is no reason for either Pd or PlugData to display it as graph-on-parent, when it isn't.
Inside that patch, you have a graph-on-parent subpatch. This is misleading you into thinking that you have done graph-on-parent, when you haven't. (But then, the GUIs are not in the subpatch either!)
Now, I do see an unfortunate limitation in PlugData: I don't see right away how to get to the graph-on-parent property. I expected right-click empty space --> Properties to show the canvas properties, but it doesn't. AFAICS then, to create a graph-on-parent abstraction, it looks like you will have to use normal Pd first.
Here is sfplayer with graph-on-parent defined at the top level.
hjh
Help with audio patch on off based on some condition
@KMETE said:
One reason I needed to use the loop 1 message is that the track was always paused for some reason before it ends when no in loop mode.
Ohhhhhh... now I see what it is.
When you ask sf-play(2)~ to play a timed region, it also runs a timed envelope. When you pause / resume, the playback timing doesn't match the envelope timing, so the envelope closes before the end of the source audio.
I'd rather not complicate sf-play(2)~ to allow the envelope to be disabled. But you can back out of one layer of abstraction and use play~ directly.
play~ doesn't take "start end rate" lists like sf-play~ does -- but I have a translator object for that. Since there's already a [pd] subpatch to translate "start/resume" messages, I'd just stick the play translator in there:
Now there's no timed envelope and you should get the play~ native pause/resume behavior without interference (I hope ).
hjh
ways of exponentiation ( / range mapping)
@cfry Way back when I had no real clue what I was doing I did this programmable curve Should give you a starting point. I did not understand what [vline~] did back then, it would simplify things and there is no reason for that big [expr] but I had not quite figured out order of operations yet and that is the only way I could make it work.
Edit; I went ahead and fixed it up a bit. Here it is without the input timing stuff. Just send it a message of target value, duration and a power 0.5 for log, 2 for expo and anything between or further to the extreme for steeper or gentler curves. [1 1000 2( would give an expo curve ramping too 1 over 1 second. Remembered that I did not use [vline~] because still need to time the curve value and scaling.
curver~.pd
Edit, fixed some silliness, probably still some more in there.
plot-graph - a way to display waveforms
Here I've uploaded plot graph as an abstraction plus two other abstractions to assist in its usage make-plot and cursor-drive
plot-graph creation: plot-graph unique-name size-x size-y;
Address the settings with messages to in-unique-name (eg [s in-$0-channel-L] or connect a control-rate wire to top left corner;
make-plot creation: make-plot array-name plot-resolution;
eg [make-plot $0-left-channel 200]
make-plot is used to take the audio file size given by soundfiler and divide that by the x resolution of the plot-graph window, read the array in chunks of the min max amplitudes to plot the waveform.
cursor-drive creation: [cursor-drive x resolution] eg [cursor-drive 200] drives the play cursor if active
For best results I found it best to keep the resolution to half the window size, say 200 window 100 resolution
SETTINGS. for plot-graph
size float float (can be set as a creation arg);
min float (y value <= 0 for peaks -1 to 0);
max float (y values>= 0 for peaks 0 to 1);
index float (x value 0 to resolution cur float (x position for cursor 0 to resolution);
cur-vis float (hide/show cursor 0 or 1);
min-vis float (hide/show min plot 0 or 1);
max-vis float (hide/show max plot 0 or 1);
colour float float float float float float;
where:-;
float 1 = back colour (0 to 999 struct colours);
float 2 = border colour (0 to 999 struct colours);
float 3 = plot colour (0 to 999 struct colours);
float 4 = cursor colour (0 to 999 struct colours);
float 5 = plot thickness (1 to 5ish);
float 6 = border thickness (0 to 30ish);
plot-fill float (hide/show fill 0 or 1)
fill-col float float (0 to 999 thickness 0 to 5)
For an animated plot with fill try the following in the plot-graph-help
load audio file
click 100 resolution
click look here for more
scale x using the number-box to 200
toggle off min-vis and cursor-vis
click play (and loop if a small file)
in the more page
toggle scope plot
toggle fill plot
adjust normalise
play with the colours
plot-graph.pd and plot-graph-help.pd are read only to prevent overwriting the defaults, change this if you wish
Have fun
Cheers
Balwyn
plot-graph.zip
The picture is reduced to 70%