TOOT 7

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Now we will add the ability to do a linear crossfade between any two of our four basic waveforms. We will employ our delayed vibrato scheme to regulate the speed of the crossfade.

orchestra

 File: Toot07.orc
instr 7

ifunc1    =         p11                                ; initial waveform

ifunc2    =         p12                                ; crossfade waveform



ifad1     =         p3 * p13                           ; calculate initial fade (% of dur)

ifad2     =         p3 - ifad1                         ; calculate remaining duration



irel      =         .01                                ; set vibrato release time

idel1     =         p3 * p10                           ; calculate initial delay (% of dur)

isus      =         p3 - (idel1 + irel)                ; calculate remaining duration



iamp      =         ampdb(p4)

iscale    =         iamp * .166                        ; p4=amp

inote     =         cpspch(p5)                         ; p5=freq



k3        linseg    0, idel1, p9, isus, p9, irel, 0    ; p6=attack time

k2        oscil     k3, p8, 1                          ; p7=release time

k1        linen     iscale, p6, p3, p7                 ; p8=vib rate

a6        oscil     k1, inote*.998+k2, ifunc2          ; p9=vib depth

a5        oscil     k1, inote*1.002+k2, ifunc2         ; p10=vib delay (0-1)

a4        oscil     k1, inote+k2, ifunc2               ; p11=initial wave

a3        oscil     k1, inote*.997+k2, ifunc1          ; p12=cross wave

a2        oscil     k1, inote*1.003+k2, ifunc1         ; p13=fade time

a1        oscil     k1, inote+k2, ifunc1



kfade     linseg    1, ifad1, 0, ifad2, 1

afunc1    =         kfade * (a1+a2+a3)

afunc2    =         (1 - kfade) * (a4+a5+a6)



          out       afunc1 + afunc2

          endin

score

 File: Toot01.sco
f1   0    2048 10   1                                                                ; Sine

f2   0    2048 10   1    0.5  0.3  0.25 0.2  0.167     0.14      0.125     .111      ; Sawtooth

f3   0    2048 10   1    0    0.3  0    0.2  0         0.14      0         .111      ; Square

f4   0    2048 10   1    1    1    1    0.7  0.5       0.3       0.1                 ; Pulse





;in st    dur  amp  frq       atk  rel  vbrt vbdp vbdl stw  ndw  crstm

i7   0    5    96   8.07      .03  .1   5    6    .99  1    2    .1

i7   6    5    96   8.09      .03  .1   5    6    .99  1    3    .1

i7  12    8    96   8.07      .03  .1   5    6    .99  1    4    .
 

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