5 ms·

Impromptu - A Scheme Based Language for AV Live Coding

37 points by gnubardt 16y ago

limmeau 16y ago
Example video with piano: http://vimeo.com/8732631 http://vimeo.com/8732631 .
pygy_ 16y ago
The sole author of Impropmptu, Andrew Sorensen, is also currently the best live performer. Some chosen samples: A study in Keith: a poignant piano part http://vimeo.com/2433947 http://vimeo.com/2433947. When the code is evaluated (usually one function at a time), you can see the code block flash in a pale yellow/green color. Stained: This one comes with visualizations. Simple yet psychedelic. http://vimeo.com/2502546 http://vimeo.com/2502546.
- wvl 16y ago
  Seeing this posted today, I figure someone would have linked his recent holiday performance, "Variations on a Christmas Theme": http://vimeo.com/18008372 http://vimeo.com/18008372 When I first heard/saw Stained it blew my mind -- truly an impressive work of art.
julian37 16y ago
If I could somehow appropriate the Scheme-to-LLVM compiler for producing ARM code to run on the iPhone! Doing what Gambit Scheme does [1] without Gambit Scheme would be great. The LLVM code it generates looks pretty neat [2]. Alas, it looks like the source code for this is not available. [1] http://jlongster.com/software/iphone/scheme-iphone-example/ http://jlongster.com/software/iphone/scheme-iphone-example/ [2] http://impromptu.moso.com.au/extras/imp_tech_notes.pdf http://impromptu.moso.com.au/extras/imp_tech_notes.pdf
- pygy_ 16y ago
  He ditched the Scheme -> LLVM compiler in favor of a Scheme derived, statically typed sublanguage with C-like Arrays (ie as low level as possible) for its core data structure. http://impromptu.moso.com.au/extras/ICR.html http://impromptu.moso.com.au/extras/ICR.html http://lists.moso.com.au/pipermail/impromptu/2010-October/000728.html http://lists.moso.com.au/pipermail/impromptu/2010-October/00... Imprompty won't be released as open source, but a subset of the code will probably be opened at some point in order to create a cross-platform alter-ego. http://lists.moso.com.au/pipermail/impromptu/2010-December/000785.html http://lists.moso.com.au/pipermail/impromptu/2010-December/0...
mquander 16y ago
Related (but for doing the visuals, and not the audio) -- Fluxus: http://www.pawfal.org/fluxus/ http://www.pawfal.org/fluxus/ I suggest trying this stuff out, because it's a ton of fun.
- makmanalp 16y ago
  More goodies: http://www.pawfal.org/fluxus/projects-using-fluxus/ http://www.pawfal.org/fluxus/projects-using-fluxus/

37 points by gnubardt 16y ago

Example video with piano: http://vimeo.com/8732631 http://vimeo.com/8732631 .

pygy_ 16y ago

The sole author of Impropmptu, Andrew Sorensen, is also currently the best live performer. Some chosen samples: A study in Keith: a poignant piano part http://vimeo.com/2433947 http://vimeo.com/2433947. When the code is evaluated (usually one function at a time), you can see the code block flash in a pale yellow/green color. Stained: This one comes with visualizations. Simple yet psychedelic. http://vimeo.com/2502546 http://vimeo.com/2502546.

wvl 16y ago
Seeing this posted today, I figure someone would have linked his recent holiday performance, "Variations on a Christmas Theme": http://vimeo.com/18008372 http://vimeo.com/18008372 When I first heard/saw Stained it blew my mind -- truly an impressive work of art.

julian37 16y ago

If I could somehow appropriate the Scheme-to-LLVM compiler for producing ARM code to run on the iPhone! Doing what Gambit Scheme does [1] without Gambit Scheme would be great. The LLVM code it generates looks pretty neat [2]. Alas, it looks like the source code for this is not available. [1] http://jlongster.com/software/iphone/scheme-iphone-example/ http://jlongster.com/software/iphone/scheme-iphone-example/ [2] http://impromptu.moso.com.au/extras/imp_tech_notes.pdf http://impromptu.moso.com.au/extras/imp_tech_notes.pdf

pygy_ 16y ago
He ditched the Scheme -> LLVM compiler in favor of a Scheme derived, statically typed sublanguage with C-like Arrays (ie as low level as possible) for its core data structure. http://impromptu.moso.com.au/extras/ICR.html http://impromptu.moso.com.au/extras/ICR.html http://lists.moso.com.au/pipermail/impromptu/2010-October/000728.html http://lists.moso.com.au/pipermail/impromptu/2010-October/00... Imprompty won't be released as open source, but a subset of the code will probably be opened at some point in order to create a cross-platform alter-ego. http://lists.moso.com.au/pipermail/impromptu/2010-December/000785.html http://lists.moso.com.au/pipermail/impromptu/2010-December/0...

mquander 16y ago

Related (but for doing the visuals, and not the audio) -- Fluxus: http://www.pawfal.org/fluxus/ http://www.pawfal.org/fluxus/ I suggest trying this stuff out, because it's a ton of fun.

makmanalp 16y ago
More goodies: http://www.pawfal.org/fluxus/projects-using-fluxus/ http://www.pawfal.org/fluxus/projects-using-fluxus/