yes, the vocoder code is available in the current firmware.
if you do this, don't put into the community library, as i will update the factory object... as its kind of a 'bug', and we dont really want duplicates of factory objects in the community library, it will just confuse users. ... you could however send me the updated object, if you do it first, and tested it, then I can put in the factory lib.
note: its trivial to add the params, the slightly time consuming bit, is to check the rest of the MI code, to determine what the range of the parameter should be (i.e. how you convert from axo type 0..64 to the float) ... usually its 0..1 but not always.
actually its the opposite of this, not ALL of the MI code is in firmware, only the part we use.
any part that has been included is available to user objects.
however, another issue is you cannot change the MI code without breaking things, which is why we needed a more complex solution for the next release.