Mercurial > hg > beaglert
view examples/08-PureData/gettingStarted/_main.pd @ 541:c301cc07ae11 prerelease
updated heavy to new API
author | Giulio Moro <giuliomoro@yahoo.it> |
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date | Fri, 24 Jun 2016 02:29:05 +0100 |
parents | 545087a05bc8 |
children | 8f8809c77dda |
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#N canvas 736 167 442 1518 10; #X text 32 20 Using Puredata (libpd) on Bela; #X text 32 30 ==============================; #X obj 100 538 osc~ 440; #X obj 100 560 *~ 0.1; #X obj 100 582 dac~; #X text 33 501 Here's how you produce a sine wave out of Bela's stereo output:; #X text 33 611 Similarly \, Bela's stereo input can be addressed as follows:; #X obj 100 642 adc~; #X obj 100 664 dac~; #X text 177 653 Audio pass-through; #X text 33 1581 Supported objects; #X text 33 1591 -----------------; #X text 33 1625 All native pd (vanilla) objects can be used.; #X text 33 1611 By default Bela uses libpd to run puredata patches. ; #X text 33 1645 It is also possible to compile pd objects to optimised ; #X text 33 1658 C code using the Heavy Cloud Compiler \, in which case ; #X text 33 1671 a different set of objects is supported (see below). ; #X text 33 701 Analog I/O; #X text 33 711 ----------; #X text 33 731 Analog inputs and outputs are treated as audio signals and; #X text 33 745 are addressed using the next 8 channels of the [adc~] and; #X text 33 759 [dac~] objects:; #X obj 36 785 adc~ 3 4 5 6 7 8 9 10; #X text 191 785 Analog Inputs 0 \, 1 \, 2 \, 3 \, 4 \, 5 \, 6 \, 7 ; #X text 191 815 Analog Outputs 0 \, 1 \, 2 \, 3 \, 4 \, 5 \, 6 \, 7 ; #X obj 36 815 dac~ 3 4 5 6 7 8 9 10; #X text 33 853 examples.; #X text 33 891 MIDI; #X text 33 901 ----; #X text 99 921 and; #X obj 36 920 notein; #X obj 125 920 ctlin; #X text 183 921 objects can be used to interface MIDI devices; #X text 33 939 with the patch.; #X text 33 954 Most MIDI devices can be plugged into the Beaglebone's USB; #X text 33 968 port and can be used with these objects.; #X text 33 839 See the 'BasicAnalogIn' and 'BasicAnalogOut' projects for; #X text 33 983 See the 'hello-midi' and 'midi-poly-synth' projects for more; #X text 33 997 for examples.; #X obj 57 1058 print; #X text 33 1058 The; #X text 115 1058 object can be used to log messages directly to Bela's ; #X text 33 1076 terminal output (e.g. as viewable in the browser IDE). ; #X obj 100 1102 loadbang; #X obj 100 1146 print; #X msg 100 1124 Puredata says: 'Hello Bela!'; #X text 33 1041 ----------------; #X text 33 1031 Debugging: print; #X text 33 1191 ----------------; #X text 33 1181 Debugging: scope; #X text 33 1208 Any signal can be visualised using Bela's browser-based ; #X text 33 1222 scope. DAC channels 27 \, 28 \, 29 \, 30 address four separate; #X text 33 1236 scope channels.; #X obj 147 1309 dac~ 27 28 29 30; #X obj 79 1261 osc~ 440; #X obj 149 1261 noise~; #X obj 209 1261 osc~ 880; #X obj 209 1283 *~; #X text 33 1364 visualised.; #X text 33 1710 Compiling Puredata patches with Heavy; #X text 33 1720 -------------------------------------; #X text 33 1740 As an alternative to libpd \, Puredata patches can be; #X text 33 1754 converted into optimised C code using the Heavy Cloud ; #X text 33 1768 Compiler by Enzien Audio. The resulting code can result ; #X text 33 1782 in large increases in performance and is therefore well; #X text 33 1796 suited for complex patches and final stages of development. ; #X text 33 1810 We recommend to use libpd for prototyping and less CPU; #X text 33 1824 intensive patches.; #X text 33 1838 See our documentation to learn more about compiling patches; #X text 33 1852 using Heavy \, and visit enzienaudio.com for more info and; #X text 33 1866 a list of currently supported objects.; #X text 33 1401 Combining Pd and C++; #X text 33 1411 --------------------; #X text 33 1428 There are many cases where it is useful to combine Pd; #X text 33 1442 patches with C++ code \, for example when needing to ; #X text 33 1456 incorporate system calls (e.g. networking) or for; #X text 33 1470 sample-accurate dsp processes that are inconvenient ; #X text 33 1484 to program in Puredata.; #X text 33 1517 is used \, which functions as a libpd wrapper. It is ; #X text 33 1504 When running Puredata patches a template render.cpp file; #X text 33 1531 possible to modify this file when starting a new pd project.; #X text 33 1545 See the 'CustomRenderFile' example project for more info.; #X text 177 560 Sine Wave; #X obj 149 1283 *~ 0.1; #X obj 279 1261 osc~ 0.5; #X text 33 1350 click the scope button to see the above signals being ; #X text 33 1336 If you're viewing this patch using the Bela IDE you can; #X text 33 221 Patches can be drag-and-dropped into the browser IDE ; #X text 33 235 and will be added to the current project that is open. ; #X text 33 249 In order for the patch to run you need to fulfill the ; #X text 33 263 following two requirements:; #X text 59 285 a) The top-level patch needs to be named '_main.pd' ; #X text 77 298 (you can still use abstractions); #X text 59 315 b) Make sure there is no 'render.cpp' file inside; #X text 77 328 the project. A template file will be used instead; #X text 77 342 which acts as a wrapper for libpd.; #X text 77 355 Alternatively you can modify this wrapper and place ; #X text 77 368 it inside the project. See below for more information. ; #X text 33 61 Puredata patches can easily be run on Bela. There are two; #X text 33 75 ways of doing this: using libpd (which is compatible with; #X text 33 89 the browser-based IDE) or using the Heavy cloud compiler ; #X text 33 103 by Enzien Audio.; #X text 33 123 This guide focuses mainly on using libpd via the browser \,; #X text 33 137 however most of the functionality is compatible across both; #X text 33 151 solutions.; #X text 33 191 Loading and running patches in the Bela IDE; #X text 33 201 -------------------------------------------; #X text 33 471 Audio I/O; #X text 33 481 ---------; #X text 33 392 If you're viewing this inside the Bela IDE \, then you've ; #X text 33 406 noticed by now that all pd patches can be previewed within; #X text 33 420 the browser. Note \, however \, that patches cannot currently; #X text 33 434 be edited or interacted with inside this preview.; #X connect 2 0 3 0; #X connect 3 0 4 0; #X connect 3 0 4 1; #X connect 7 0 8 0; #X connect 7 1 8 1; #X connect 43 0 45 0; #X connect 45 0 44 0; #X connect 54 0 53 0; #X connect 55 0 83 0; #X connect 56 0 57 0; #X connect 57 0 53 2; #X connect 83 0 53 1; #X connect 84 0 57 1; #X connect 84 0 53 3;