b64Xtended _v2.2

This instrument is inspired by the SID chip of the Commodore 64 and b64 by Steven Yi. A nice feature is that for every one of the 3 oscillators a "swell" is implemented. That means tht within a tone of one oscillator an extra amount - positive or negative - of amplitude ( or swell ) can be given. Thus the 3 oscillators can be fine modulated by different subtle peaks or falls of amplitude within one note, making it more lively. Another nice one is the stereo/mono switch. In stereo the 3 oscillators are divided over 2 channels. In mono mode you can treat the sounds of the 3 oscillators more as one sound with a certain timbre. It is possible to switch to and from stereo while the note is playing RE UDO k_MultiOscil - MultiOscilx has 2 extra parameters, 1 for switch and 1 for sinefreq - added schwitch for PWM and a sine LFO for PWM to work with pulse - changed PW to 0.05 and 0.95 (according to manual the right specs) - kcount is a tric to divide a too large amp when waves are added together - atemp is used to be able to add waves together - added UDO k_Zwel, so 3 extra parameters RE UDO k_MultiFilter - low and high pass have a Q, bandpass has Bandwith and no Q - added band reject - uses svfilter for lowpass and highpass with Q, uses butter filter for band pass and band reject - Band pass/reject value up to 1500 Hz Q: in udo, why all the K instead of k? Because K works at i-time and k-rate, so it works all the time? Q: what is the advantage of having kpch instead of ipch in my instrument? Is there one? Q: why does the setting of PW an influence on the PW sine? Q: i see no other way to put k_Zwel UDO but inside k_MultiOscil. Can you think of a way? Q: is ringmod functional in this sterosetting? ======================================================== THE FOLLOWING UDO'S HAVE ON / OFF SWITCHES: RE UDO k_Zwel - one per voice - udo Zwel (= for each note give an extra accent (positive or negative) to achieve fine modulation in the composite sound) using adapted code from The Csound Book page 179 RE UDO Tremolo - one per voice - setksmps 1 to be able to set a shorter port time to filter sharp edges of square and saw RE UDO Vibrato - has standard LFO types, but also can add some jitter. Vibrato is global for all voices. ======================================================== RE Envelope - i have choosen for transeg, because i think it approaches better the feeling of the Commodore 64 envelope - curve of decay and release can be varied between convex and concave RE Ringmodulator - = responsable for mixing the 3 oscilators to the output - added info on which RM is influencing which - added extra variable aringx, for later use in stereo/mono setting RE stereo/mono - conditions to check if ringmodulated or not, and if stereo or not. - added coarse tuning that effects tuning of all oscillators