[rtcmix~] for MaxMSP/OSX

64-bit/intel for Max/MSP 7 or 8; July 2020 (rtcmix~ [2.03] (updated) 1/26/22)
M1/rosetta, MaxMSP 8; (rtcmix~ [2.05] 9/9/22)
M1, M2, MaxMSP 9; (rtcmix~ [2.059] 8/31/25)



Installation

1. Unpack the archive.


2. Move the entire "RTcmix-2.05" or "RTcmix-2.059" folder intact to your "/Users/Shared/Max 8/Library/" or your "/Users/Shared/Max 9/Library/" folder.

NOTE: Max needs to run using 'Rosetta' for rtcmix~ [2.05] to work. Go to your /Applications folder and find the Max.app. Select (but do not start) the Max.app in the Finder, and then under the "File" menu (top left of the screen), select "Get Info". Be sure that "Open using Rosetta" is checked.

You don't have to do this for rtcmix~ [2.059]


4. If OSX is complaining that the app or library for RTcmix ([rtcmix~]) isn't allowed to run because it isn't from one of their 'signed developers' and [rtcmix~] isn't running, the following should set the permissions so it can work: 
1.  start up a Terminal window (/Applications/Utilities/Terminal.app)

2.  type in:

      "sudo xattr -r -d com.apple.quarantine "

without the quotes (and note the space at the end -- it has to be there)

3. Drag/Drop the RTcmix folder you downloaded** from the Finder into
the Terminal window with the "sudo ..." command typed in.  The result
should be a line in the Terminal window that looks something like this
(for Max/MSP, different for pd):

      sudo xattr -rd com.apple.quarantine /Users/Shared/Max\ 9/Library/RTcmix-2.059/

4.  Hit <return>, give your password, and hopefully(!) all will be happy.
You can close the Terminal window after this.

**(probably RTcmix-2.059/ or RTcmix-2.05/ in the Shared/Max 9/Library/
(or the Shared/Max 8/Library for Max 8 users) folder for Max/MSP, or the
rtcmix~/ folder in Documents/Pd/externals for pd)

3. Start (or restart) Max/MSP. [rtcmix~] should be working.


Brad Garton
September, 2025