So, ZynAddSubFX is a SYNthesizer with ADDitive, SUBtractive engines and effects.
Q2) How can I load files from older versions of ZynAddSubFX (like *.mas_zyn,etc)
A2) You need to convert them into new format. Please use 2.0.0pre1 or (recomanded) 2.0.0pre2 versions of ZynAddSubFX to load old file formants and save them in the new formats
Q3) How can I change the number of parts, voices to ADSynth, effects, etc. ?
A3) Look in src/globals.h and change there theese values. You don't have to change anything else, just recompile all. But most settings must be below 128. As the rule of the thumb if a setting is 128 or below 128, please don't make it bigger than 128. Anyway, I don't belive that you'll need more than 128 for theese settings; for example you don't need 128(or more) effects same time? That's why I put the limit of 128 (using 7 bits of char).
Q4) How do I enable Jack support on ZynAddSubFX ?
A4) Look in "Makefile.inc" from "src/" directory for more information. It is highly recomanded that the Jack samplerate to be equal to ZynAddSubFX samplerate (SAMPLE_RATE from globals.h), otherwise the resampling will be done and this will decrease the quality a bit.
Q5) Why it is licensed only under version 2 of the GNU GPL?
A5) I licensed under GNU GPL v.2 only, because I don't know what the next versions of GPL will say. For example what if they tell that a GPL licensed program can be a part of a proprietary software? This may blow up the entire opensource comunity (well, only 'GPL v.2 or any later version' programs - but they are the most).
To 'be similar in spirit to the present version [of GPL]' (what is said in the section 9 of GNU GPL) is too ambigous for me.
Anyway, ZynAddSubFX is free (as speech) even is licensed only to GPL v.2 ;-) .
