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RTC-lib (Realtime Composition Library) for Max5 – just released

Jan 10 2010 | 12:52 pm

Dear Maxers!

Today I released a new version of my RTC-lib (Realtime Composition Library) – a versatile toolbox for algorithmic composition in realtime which I am developing since 1993. This version is optimized for Max5 and includes completely new help files and many improvements.

More information and free download from


Univ.-Prof. Dr. Karlheinz Essl
Universität für Musik und darstellende Kunst Wien
Institut für Komposition und Elektroakustik

Jan 10 2010 | 12:59 pm

Amazing news! Studying the RTC-lib files and the other works on your web site is what roped me in to using max after I was first introduced to the software at university. Also I think your "Sequitur" series is stunning, thank you Karlheinz.


Jan 10 2010 | 5:30 pm

more great work karlheinz :)

many thanks for sharing.

Jan 10 2010 | 8:13 pm

many thanks!
..but i’m on windows OS…any version planned for the new 5.0?


Jan 10 2010 | 9:09 pm

I just posted an experimental Windows XP version of RTC-lib 5.0 to:

where I exchanged the view remaining externals by their Windows equivalents. As I am not working on a PC I have no chance to test it myself – so please use it with care.

— kHz

Jan 11 2010 | 2:57 pm

Awesome, thanks Karl for all your hard work!

Jan 11 2010 | 4:54 pm

Could some nice soul please tell me whether the Windows version of RTC-lib works?

Thanks and cheers,
— kHz

Jan 11 2010 | 5:05 pm

Will do

Jan 11 2010 | 7:05 pm

trying the windows release (max novice here) on windows xp sp3 unzipping the files reports password locked directories. eg unable to get the RTC-overview.
nothing in the unzipped directory if i choose skip.

Jan 11 2010 | 7:22 pm

a bit later

I tried copying directly from the zip into max-startup (which was read only, ’til I changed). nothing showed, but…

… using the browser, i did find a copy of the overview. maybe something to do with the max-startup directory,?

not sure what to expect from mac sourced zip.

Jan 12 2010 | 2:01 pm

I just posted a (hopefully) Windows compatible ZIP archive with the Windows version of the RTC-lib 5.0 to:

Please check again!

Thanks for your patience,
— kHz

Jan 12 2010 | 2:49 pm

I am still getting error when it unzips, it complains about invalid
file names.

Jan 12 2010 | 9:38 pm

the most recent zip only reported a problem with the help file in "put content into max startup’, requiring a password.

I think the same file is in ‘put content into patchesRTC-libRTC-lib Help Help-Screens’. file is RTC-Overview

this is from an xp sp3 system, using ‘7-Zip’, in my case.

Jan 12 2010 | 9:54 pm

while poking around last night i was having problems with the audio output.
it looks like init_Qt_synth is hardwired to "AU DLS Synth 1"

I have quicktime but am not sure about a synth. some other examples in 5.1 have a chooser for available targets. Maybe I can learn how to integrate that

called from QT_PercPlayer

Jan 12 2010 | 10:22 pm
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Forums > MaxMSP