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!Overview %%% Right-clicking on the canvas opens a new window with an overview of objects available in the standard pd distribution. This list is divided into several sections such as audio objects, midi, control, glue, math etc. We will not get into the details of all of them, the best way is to experiment and read the help files. It is important, however, to know abut their general function and application. The first obvious division is AUDIO objects, identified by the "~" (tilde) character, and, generally speaking, CONTROL objects. %%% Audio objects return only audio signal and they operate only when pd audio is turned on (either by selecting through the menu AUDIO->ON, hitting Ctr-/ or clicking "compute audio" on the main pd window. One could also send pd a message "pd dsp 1" but we'll talk about messages later). Control objects are always ready to run. One of the most important things to know about those differences is that although some of the audio objects accept input from most of the control objects (especially those that deal with floats or ints) it does not work the other way around. Try connecting the sig~ object's outlet to the "[+":[+ inlet (as on the picture below) and look what happens in the terminal window when you start audio (by selecting AUDIO- >On or clicking on "compute audio" on the main window). BTW, it is strongly advisable tu start pd from command line and keep the terminal window visible as all error messages and other activity is reported to that window. It is especialy helpful in debugging your programs. %%% %%%

http://iem.kug.ac.at/pdwiki/images/pdtutorial02.png

%%% %%% You should see the following message in your terminal: %%% error: signal outlet connect to nonsignal inlet (ignored) ... you might be able to track this down from the Find menu. %%% I agree, this is not an in-depth explanation, but at least it tells you that you're doing something wrong. It's good to check for errors often. You can work with pd without even turning the audio off; you will hear your changes immediately and some errors that get reported only when audio is running will pup up right away. Now, you can turn off audio, erase your canvas window and go on to the tutorials, since practice makes perfect and nobody's interested in reading my blah-blah anyways... ---- '''Previous:''' PdTutorialIntro '''Next:''' PdTutorialTutorialOne ----



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