 Pure Data with many patches open (netpd project) Pure Data (or Pd) is a graphical programming language developed by Miller Puckette in the 1990s for the creation of interactive computer music and multimedia works. Though Puckette is the primary author of the software, Pd is an open source project and has a large developer base working on new extensions to the program. It is released under a license similar to the BSD license. Image File history File links Download high resolution version (1400x1050, 108 KB) Summary Screenshot of Pure Data Licensing This is a screenshot of copyrighted computer software for Linux, and copyright for it is most likely held by the author(s) or the company that created the software. ...
Image File history File links Download high resolution version (1400x1050, 108 KB) Summary Screenshot of Pure Data Licensing This is a screenshot of copyrighted computer software for Linux, and copyright for it is most likely held by the author(s) or the company that created the software. ...
Visual Programming in Mindscript A Visual programming language (VPL) is any programming language that lets users specify programs by manipulating program elements graphically rather than by specifying them textually. ...
Miller Smith Puckette is the associate director of the Center for Research in Computing and the Arts as well as a faculty member at the University of California, San Diego, where he has been since 1994. ...
Interaction is a kind of action that occurs as two or more objects have an effect upon one another. ...
Computer music is music generated with, or composed with the aid of, computers. ...
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Open source refers to projects that are open to the public and which draw on other projects that are freely available to the general public. ...
The BSD license is a permissive license and is one of the most widely used free software licenses. ...
Pd is very similar in scope and design to Puckette's original Max program (developed while he was at IRCAM), and is to some degree interoperable with Max/MSP, the commercial successor to the Max language. Both Pd and Max are arguably examples of dataflow programming languages. In such languages, functions or "objects" are linked or "patched" together in a graphical environment which models the flow of the control and audio. Unlike the original version of Max, however, Pd was always designed to do control-rate and audio processing on the host CPU, rather than offloading the synthesis and signal processing to a DSP board (such as the Ariel ISPW which was used for Max/FTS). Pd code forms the basis of David Zicarelli's MSP extensions to the Max language to do software audio processing. A Max/MSP patch written and used by Autechre Max is a graphical development environment for music and multimedia developed and maintained by San Francisco-based software company Cycling 74. ...
The IRCAM, Institut de Recherche et Coordination Acoustique/Musique, was founded in the 1970s by Pierre Boulez. ...
A Max/MSP patch written and used by Autechre Max is a graphical development environment for music and multimedia developed and maintained by San Francisco-based software company Cycling 74. ...
It has been suggested that this article or section be merged with dataflow. ...
Die of an Intel 80486DX2 microprocessor (actual size: 12×6. ...
Synthesis (from the ancient Greek σÏν (with) and θεσις (placing), is commonly understood to be an integration of two or more pre-existing elements which results in a new creation. ...
Signal processing is the processing, amplification and interpretation of signals, and deals with the analysis and manipulation of signals. ...
A digital signal processor (DSP) is a specialized microprocessor designed specifically for digital signal processing, generally in real-time. ...
The IRCAM Signal Processing Workstation (ISPW) was a hardware DSP platform developed by IRCAM and the Ariel Corporation in the late 1980s. ...
Look up Max, max in Wiktionary, the free dictionary. ...
Like Max, Pd has a modular code base of externals or objects which are used as building blocks for programs written in the software. This makes the program arbitrarily extensible through a public API, and encourages developers to add their own control and audio routines, either in the C programming language or, with the help of other externals, in Python, Ruby, Scheme and many other languages as well. However, Pd is a programming language in its own right. Modular, reusable units of code written natively in Pd, called "patches" or "abstractions", are used as standalone programs and freely shared among the Pd user community, and no other programming skill is required to use Pd effectively. Modularity is a concept that has applications in the contexts of computer science, particularly programming, as well as cognitive science in investigating the structure of mind. ...
API may refer to: In computing, application programming interface In petroleum industry, American Petroleum Institute In education, Academic Performance Index This page concerning a three-letter acronym or abbreviation is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ...
C is a general-purpose, block structured, procedural, imperative computer programming language developed in 1972 by Dennis Ritchie at the Bell Telephone Laboratories for use with the Unix operating system. ...
Python is a high-level programming language first released by Guido van Rossum in 1991. ...
Ruby is a reflective, object-oriented programming language. ...
Scheme is a multi-paradigm programming language. ...
With the addition of the Graphics Environment for Multimedia (GEM) external, and externals designed to work with it (like Pure Data Packet / PiDiP for Linux, framestein for Windows, GridFlow for n-dimensional matrix processing that integrates pure data with the Ruby programming language, etc.), it is possible to create and manipulate video, OpenGL graphics, images, etc. in realtime with seemingly endless possiblilities for interactivity with audio, external sensors, etc. GEM (Graphics Environment for Multimedia) is a collection of externals (libraries) that provide OpenGL graphics functionality to pure data, a graphical programming language for real-time audio processing. ...
Ruby is a reflective, object-oriented programming language. ...
OpenGL (Open Graphics Library) is a standard specification defining a cross-language cross-platform API for writing applications that produce 2D and 3D computer graphics. ...
Additionally, Pd is natively designed to enable live collaboration across networks or the internet, allowing musicians connected via LAN or even in disparate parts of the globe to create music together in real time.
Language features
 Pd's four text objects: message, atom, object, and comments. Like Max, Pd is a "patcher" programming language. As with most DSP software, there are two primary rates at which data is passed: sample (audio) rate, usually at 44100 samples per second, and control rate, at 1 block per 64 samples. Control messages and audio signals generally flow from the top of the screen to the bottom between "objects" connected via inlets and outlets. Image File history File links Pd-objects. ...
Image File history File links Pd-objects. ...
The term DSP, when used by itself, can refer to: // Underground Bhangra DJ Short for Deathlike Silence Productions. ...
The sampling frequency or sampling rate defines the number of samples per second taken from a continuous signal to make a discrete signal. ...
A screenshot of MSD Editor which uses data structures to visualize control data. (Frank Barknecht) Pd supports 4 basic types of text entities: messages, objects, atoms, and comments. Atoms are the most basic unit of data in Pd, and they consist of either a float, a symbol, or a pointer to a datastructure. (In Pd, all numbers are stored as 32-bit floats). Messages are composed of one or more atoms and provide instructions to objects. A special type of "content-less" message called a bang is used to initiate events and push data into flowing, much like pushing a button. Image File history File links Download high resolution version (621x664, 23 KB) Summary Screenshot of Frank Barknechts MSD-Editor. ...
Image File history File links Download high resolution version (621x664, 23 KB) Summary Screenshot of Frank Barknechts MSD-Editor. ...
A floating-point number is a digital representation for a number in a certain subset of the rational numbers, and is often used to approximate an arbitrary real number on a computer. ...
Pd's native objects range from the basic mathematical, logical, and bitwise operators found in every programming language, to general and specialized audio-rate DSP functions (designated by a tilde (~) symbol), such as wavetable oscillators, the fft~, and a range of standard filters. Data can be loaded from file, read in from an audio board, MIDI, via Open Sound Control (OSC) through a Firewire, USB, or network connection, or generated on the fly, and stored in tables, which can then be read back and used as audio signals or control data. This article is about operators in mathematics, for other kinds of operators see operator (disambiguation). ...
In logical calculus, logical operators or logical connectors serve to connect statements into more complicated compound statements. ...
In computer programming, a bitwise operation operates on one or two bit patterns or binary numerals at the level of their individual bits. ...
The Fast Fourier Transform (FFT) is an efficient algorithm to compute the discrete Fourier transform (DFT) and its inverse. ...
Filter design is the process of working out a filter (in the sense in which the term is used in signal processing, statistics, and applied mathematics), often a linear shift-invariant filter, which satisfies a set of requirements, some of which are contradicting. ...
Musical Instrument Digital Interface, or MIDI, is a system designed to transmit information between electronic musical instruments. ...
Open Sound Control Open Sound Control (OSC) is a protocol for communication among computers, sound synthesizers, and other multimedia devices that is optimized for modern networking technology. ...
The 6-pin and 4-pin FireWire Connectors FireWire is Apple Inc. ...
Note: USB may also mean upper sideband in radio. ...
Data structures One of the key innovations in Pd over its predecessors has been the introduction of graphical data structures, which can be used in an endless variety of ways, from composing musical scores, sequencing events, to creating visuals to accompany Pd patches or even extending Pd's GUI. A binary tree, a simple type of branching linked data structure. ...
GUI can refer to the following: GUI is short for graphical user interface, a term used to describe a type of interface in computing. ...
Living up to Pd's name, data structures enable Pd users to create arbitrarily complex static as well as dynamic or animated graphical representations of musical data. Much like C structs, Pd's structs are composed of any combination of floats, symbols, and array data, which can be used as parameters to describe the visual appearance of the data structure or, conversely, to control messages and audio signals in a Pd patch. In Puckette's words: This article is about the data structure. ...
Pd is designed to offer an extremely unstructured environment for describing data structures and their graphical appearance. The underlying idea is to allow the user to display any kind of data he or she wants to, associating it in any way with the display. To accomplish this Pd introduces a graphical data structure, somewhat like a data structure out of the C programming language, but with a facility for attaching shapes and colors to the data, so that the user can visualize and/or edit it. The data itself can be edited from scratch or can be imported from files, generated algorithmically, or derived from analyses of incoming sounds or other data streams.
 Score for Hans-Christoph Steiner's Solitude, created using Pd's data structures. Image File history File links Download high resolution version (4000x543, 382 KB) Summary Hans-Cristoph Steiners graphical score for Solitude. ...
Image File history File links Download high resolution version (4000x543, 382 KB) Summary Hans-Cristoph Steiners graphical score for Solitude. ...
See also Image File history File links This is a lossless scalable vector image. ...
GEM (Graphics Environment for Multimedia) is a collection of externals (libraries) that provide OpenGL graphics functionality to pure data, a graphical programming language for real-time audio processing. ...
Alternate meanings: MAX Max is a graphical development environment for music and multimedia developed and maintained by San Francisco-based software company Cycling74. ...
reacTable in use with seven tangibles placed to control seven synth modules reacTable in fully lit room. ...
Software audio synthesis environments typically consist of an audio programming language (which may be graphical) and a user environment in which to design/run the language. ...
References Danks, M. (1996). The graphics environment for max. In: Proceedings of the International Computer Music Conference, pp. 67-70. International Computer Music Association.
Danks, M. (1997). Real-time image and video processing in Gem. In: Proceedings of the International Computer Music Conference, pp. 220-223. International Computer Music Association.
Puckette, M. S. (1997). Pure data. In: Proceedings of the International Computer Music Conference, pp. 224-227. International Computer Music Association.
Puckette, M. S. (2007). The Theory and Technique of Electronic Music. Available here.
Literature Pd-Graz (Hg.): bang. Pure Data. Wolke Verlag, Hofheim 2006, ISBN 3-936000-37-9
External links - Software by Miller Puckette — the latest Pd releases, documentation, and source code
- Pure Data Portal
- PD Webring
- Pd forum
- A complete object list - descriptions of objects that come with pd-extended
- rradical pd by Frank Barknecht
- RTC-lib — Karlheinz Essl's Real Time Composition Library for Pd
- Pure Data External Repository
- GEM — Graphics Environment for Multimedia
- PureData Using GEM example ( http://www.youtube.com/watch?v=iFEICuS2lZ8 )
- netpd Pd-based environment for network-connected real-time collaboration
- GridFlow
- Pure Data Packet
- PiDiP Is Definitely In Pieces
- Framestein — software for processing images and video with Pure Data.
- pure:dyne — GNU/Linux liveCD that includes a complete Pure Data environment.
- Obiwannabes tutorials — Tutorials for Pure Data sound design.
- (French) PureData Montréal Users Group
- (Italian) PureData Rome Users Group
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