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(provide 'snd-v.scm)
(if (provided? 'snd)
(require snd-ws.scm)
(require sndlib-ws.scm))
(define default-index-env (float-vector 0 1 25 .4 75 .6 100 0))
(define default-amp-env (float-vector 0 0 25 1 75 1 100 0))
(define default-gliss-env (float-vector 0 0 100 0))
(definstrument (fm-violin startime dur frequency amplitude
(fm-index 1.0)
amp-env
(periodic-vibrato-rate 5.0)
(random-vibrato-rate 16.0)
(periodic-vibrato-amplitude 0.0025)
(random-vibrato-amplitude 0.005)
(noise-amount 0.0)
(noise-freq 1000.0)
(ind-noise-freq 10.0)
(ind-noise-amount 0.0)
(amp-noise-freq 20.0)
(amp-noise-amount 0.0)
(gliss-env default-gliss-env)
(glissando-amount 0.0)
fm1-env
fm2-env
fm3-env
(fm1-rat 1.0)
(fm2-rat 3.0)
(fm3-rat 4.0)
fm1-index
fm2-index
fm3-index
degree
(distance 1.0)
(reverb-amount 0.01)
(base 1.0))
"(fm-violin startime dur frequency amplitude
(fm-index 1.0) (amp-env '(0 0 25 1 75 1 100 0))
(periodic-vibrato-rate 5.0) (random-vibrato-rate 16.0)
(periodic-vibrato-amplitude 0.0025) (random-vibrato-amplitude 0.005)
(noise-amount 0.0) (noise-freq 1000.0) (ind-noise-freq 10.0)
(ind-noise-amount 0.0) (amp-noise-freq 20.0)
(amp-noise-amount 0.0) (gliss-env '(0 0 100 0))
(glissando-amount 0.0) (fm1-env '(0 1 25 .4 75 .6 100 0))
(fm2-env '(0 1 25 .4 75 .6 100 0)) (fm3-rat 4.0)
(fm3-env '(0 1 25 .4 75 .6 100 0)) (fm1-rat 1.0)
(fm2-rat 3.0) (fm1-index #f) (fm2-index #f)
(fm3-index #f) (degree #f) (distance 1.0)
(reverb-amount 0.01) (base 1.0))
(with-sound () (fm-violin 0 1 440 .1))"
(let ((beg (seconds->samples startime))
(end (seconds->samples (+ startime dur)))
(frq-scl (hz->radians frequency))
(logfreq (log frequency))
(sqrtfreq (sqrt frequency))
(maxdev (* (hz->radians frequency) fm-index)))
(if (>= (* 2 fm1-rat frequency) *clm-srate*) (set! fm1-rat 1.0))
(if (>= (* 2 fm2-rat frequency) *clm-srate*) (set! fm2-rat 1.0))
(if (>= (* 2 fm3-rat frequency) *clm-srate*) (set! fm3-rat 1.0))
(let ((index1 (or fm1-index (min pi (* maxdev (/ 5.0 logfreq)))))
(index2 (or fm2-index (min pi (/ (* maxdev 3.0 (- 8.5 logfreq)) (+ 3.0 (* frequency 0.001))))))
(index3 (or fm3-index (min pi (* maxdev (/ 4.0 sqrtfreq)))))
(easy-case (and (zero? noise-amount)
(equal? fm1-env fm2-env)
(equal? fm1-env fm3-env)
(= fm1-rat (floor fm1-rat))
(= fm2-rat (floor fm2-rat))
(= fm3-rat (floor fm3-rat))
(integer? (rationalize (/ fm2-rat fm1-rat))) ; might be 2=2 but 1=3 or whatever
(integer? (rationalize (/ fm3-rat fm1-rat))))))
(let ((norm (if easy-case 1.0 index1)))
(let ((fmosc1 (if easy-case
(make-polywave (* fm1-rat frequency)
(list (floor fm1-rat) index1
(floor (/ fm2-rat fm1-rat)) index2
(floor (/ fm3-rat fm1-rat)) index3)
mus-chebyshev-second-kind)
(make-oscil (* fm1-rat frequency))))
(indf1 (make-env (or fm1-env default-index-env) norm :duration dur))
(indf2 (or easy-case (make-env (or fm2-env default-index-env) index2 :duration dur)))
(indf3 (or easy-case (make-env (or fm3-env default-index-env) index3 :duration dur)))
(frqf (make-env gliss-env (* glissando-amount frq-scl) :duration dur))
(pervib (make-triangle-wave periodic-vibrato-rate (* periodic-vibrato-amplitude frq-scl)))
(ranvib (make-rand-interp random-vibrato-rate (* random-vibrato-amplitude frq-scl)))
(fm-noi (and (not (zero? noise-amount))
(make-rand noise-freq (* pi noise-amount))))
(ind-noi (and (not (zero? ind-noise-amount))
(not (zero? ind-noise-freq))
(make-rand-interp ind-noise-freq ind-noise-amount)))
(amp-noi (and (not (zero? amp-noise-amount))
(not (zero? amp-noise-freq))
(make-rand-interp amp-noise-freq amp-noise-amount)))
(carrier (make-oscil frequency))
(fmosc2 (if (not easy-case) (make-oscil (* fm2-rat frequency))))
(fmosc3 (if (not easy-case) (make-oscil (* fm3-rat frequency))))
(ampf (make-env (or amp-env default-amp-env) :scaler amplitude :base base :duration dur))
(locs (make-locsig (or degree (random 90.0)) distance reverb-amount)))
(if (or (not easy-case)
ind-noi
amp-noi
fm-noi)
(let ((fuzz 0.0)
(vib 0.0)
(anoi 1.0)
(inoi 1.0))
(if easy-case ; no fm-noi here
(do ((i beg (+ i 1)))
((= i end))
(if amp-noi
(set! anoi (* (env ampf) (+ 1.0 (rand-interp amp-noi))))
(set! anoi (env ampf)))
(if ind-noi
(set! inoi (+ 1.0 (rand-interp ind-noi))))
(set! vib (+ (env frqf) (triangle-wave pervib) (rand-interp ranvib)))
(locsig locs i (* anoi (oscil carrier (+ vib (* inoi (env indf1) (polywave fmosc1 vib)))))))
(if (or ind-noi amp-noi fm-noi)
(if (not (or ind-noi amp-noi))
(do ((i beg (+ i 1)))
((= i end))
(let ((fuzz (rand fm-noi))
(vib (+ (env frqf) (triangle-wave pervib) (rand-interp ranvib))))
(locsig locs i (* (env ampf)
(oscil carrier
(+ vib
(+ (* (env indf1) (oscil fmosc1 (+ (* fm1-rat vib) fuzz)))
(* (env indf2) (oscil fmosc2 (+ (* fm2-rat vib) fuzz)))
(* (env indf3) (oscil fmosc3 (+ (* fm3-rat vib) fuzz))))))))))
(do ((i beg (+ i 1)))
((= i end))
(if fm-noi (set! fuzz (rand fm-noi)))
(if amp-noi
(set! anoi (* (env ampf) (+ 1.0 (rand-interp amp-noi))))
(set! anoi (env ampf)))
(if ind-noi (set! inoi (+ 1.0 (rand-interp ind-noi))))
(set! vib (+ (env frqf) (triangle-wave pervib) (rand-interp ranvib)))
(locsig locs i (* anoi (oscil carrier
(+ vib
(* inoi
(+ (* (env indf1) (oscil fmosc1 (+ (* fm1-rat vib) fuzz)))
(* (env indf2) (oscil fmosc2 (+ (* fm2-rat vib) fuzz)))
(* (env indf3) (oscil fmosc3 (+ (* fm3-rat vib) fuzz)))))))))))
(do ((i beg (+ i 1)))
((= i end))
(let ((vib (+ (env frqf) (triangle-wave pervib) (rand-interp ranvib))))
(locsig locs i (* (env ampf)
(oscil carrier (+ vib
(+ (* (env indf1) (oscil fmosc1 (* fm1-rat vib)))
(* (env indf2) (oscil fmosc2 (* fm2-rat vib)))
(* (env indf3) (oscil fmosc3 (* fm3-rat vib)))))))))))))
(if (= (mus-scaler frqf) 0.0)
(do ((i beg (+ i 1)))
((= i end))
(let ((vib (+ (triangle-wave pervib) (rand-interp ranvib))))
(locsig locs i (* (env ampf)
(oscil carrier (+ vib (* (env indf1)
(polywave fmosc1 vib))))))))
(do ((i beg (+ i 1)))
((= i end))
(let ((vib (+ (env frqf) (triangle-wave pervib) (rand-interp ranvib))))
(locsig locs i (* (env ampf)
(oscil carrier (+ vib (* (env indf1)
(polywave fmosc1 vib)))))))))))))))
;; (with-sound (:statistics #t) (fm-violin 0 10 440 .1 :fm-index 2.0))
;; (with-sound (:statistics #t) (fm-violin 0 10 440 .1 :noise-amount .01))
;; (with-sound (:statistics #t) (fm-violin 0 10 440 .1 :ind-noise-amount .01))
;; (with-sound (:statistics #t) (fm-violin 0 10 440 .1 :fm1-rat 1.002))
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