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|
(provide 'snd-fullmix.scm)
(if (provided? 'snd)
(require snd-ws.scm)
(require sndlib-ws.scm))
(definstrument (fullmix in-file beg outdur inbeg matrix srate reverb-amount)
;; "matrix" can be a simple amplitude or a list of lists
;; each inner list represents one input channel's amps into one output channel
;; each element of the list can be a number, a list (turned into an env) or an env
;;
;; "srate" can be a negative number (read in reverse), or an envelope.
(let ((st (seconds->samples (or beg 0.0)))
(dur (or outdur
(/ (- (mus-sound-duration in-file) (or inbeg 0.0))
(or (and (real? srate) (abs srate)) 1.0))))
(in-chans (channels in-file))
(out-chans (channels *output*))
(reversed (or (and (real? srate) (negative? srate))
(and (pair? srate) (pair? (cdr srate)) (negative? (cadr srate)))))
(inloc (floor (* (or inbeg 0.0) (mus-sound-srate in-file)))))
(let ((samps (seconds->samples dur))
(mx (let ((ochans (max in-chans out-chans)))
(if matrix
(make-float-vector (list ochans ochans))
(let ((v (make-float-vector (list ochans ochans))))
(do ((i 0 (+ i 1)))
((= i ochans))
(set! (v i i) 1.0))
v))))
(rev-mx (and *reverb* (real? reverb-amount) (> reverb-amount 0.0)
(let ((rmx (make-float-vector (list in-chans in-chans))))
(do ((i 0 (+ i 1)))
((= i in-chans))
(set! (rmx i 0) reverb-amount)) ; 0->assume 1 chan reverb stream, I think
rmx)))
(file (if (memv srate '(#f 1 1.0))
(make-file->frample in-file)
(let ((vect (make-vector in-chans #f)))
(do ((i 0 (+ i 1)))
((= i in-chans))
(vector-set! vect i (make-readin in-file i inloc :direction (if reversed -1 1))))
vect)))
(envs #f)
(srcenv (and (pair? srate)
(make-env srate :duration dur :scaler (if reversed -1.0 1.0)))))
(when matrix
(if (pair? matrix) ; matrix is list of scalers, envelopes (lists), or env gens
(do ((inp 0 (+ inp 1))
(off 0 (+ off out-chans)))
((= inp in-chans))
(let ((inlist (list-ref matrix inp)))
(do ((outp 0 (+ outp 1)))
((= outp out-chans))
(let ((outn (list-ref inlist outp)))
(if outn
(if (number? outn)
(set! (mx inp outp) outn)
(if (or (env? outn)
(pair? outn))
(begin
(if (not envs)
(set! envs (make-vector (* in-chans out-chans) #f)))
(vector-set! envs (+ off outp)
(if (env? outn)
outn
(make-env outn :duration dur))))
(format () "unknown element in matrix: ~A" outn))))))))
(do ((inp 0 (+ inp 1))) ; matrix is a number in this case (a global scaler)
((= inp in-chans)) ; (min in-chans out-chans) might be more elegant
(if (< inp out-chans)
(set! (mx inp inp) matrix)))))
(if (memv srate '(#f 1 1.0))
(let ((mxe (and envs
(do ((v (make-vector in-chans))
(i 0 (+ i 1))
(off 0 (+ off out-chans))
(vo (make-vector out-chans #f) (make-vector out-chans #f)))
((= i in-chans) v)
(vector-set! v i vo)
(do ((j 0 (+ j 1)))
((= j out-chans))
(vector-set! vo j (vector-ref envs (+ off j))))))))
;; -------- no src
(mus-file-mix *output* file st samps inloc mx mxe)
(if rev-mx
(mus-file-mix *reverb* file st samps inloc rev-mx)))
(let ((srcs (make-vector in-chans #f)))
(do ((inp 0 (+ inp 1)))
((= inp in-chans))
(vector-set! srcs inp (make-src :input (vector-ref file inp) :srate (if (real? srate) (abs srate) 0.0))))
(mus-file-mix-with-envs file st samps mx rev-mx envs srcs srcenv *output* *reverb*)
)))))
#|
(with-sound (:channels 2 :statistics #t)
(fullmix "pistol.snd")
(fullmix "2.snd" .5 1)
(fullmix "2.snd" 1.5 1 0 #f 2.0)
(fullmix "oboe.snd" 1 2 0 (list (list .1 (make-env '(0 0 1 1) :duration 2 :scaler .5))))
(fullmix "pistol.snd" 2 1 0 #f .5)
(fullmix "2.snd" 0 2 0 (list (list .1 .2) (list .3 .4)) 2.0)
(fullmix "oboe.snd" 3 2 0 (list (list .1 (make-env '(0 0 1 1) :duration 2 :scaler .5))) .25)
(let ((e0->0 (make-env '(0 0 1 1) :duration 2))
(e0->1 (make-env '(0 1 1 0) :duration 2))
(e1->0 (make-env '(0 1 1 0) :duration 2))
(e1->1 (make-env '(0 0 1 1) :duration 2)))
(fullmix "2.snd" 4 2 0 (list (list e0->0 e0->1) (list e1->0 e1->1))))
(let ((e0->0 (make-env '(0 0 1 1) :duration 2))
(e0->1 (make-env '(0 1 1 0) :duration 2))
(e1->0 (make-env '(0 1 1 0) :duration 2))
(e1->1 (make-env '(0 0 1 1) :duration 2)))
(fullmix "2.snd" 6 2 0 (list (list e0->0 e0->1) (list e1->0 e1->1)) 2.0)))
(with-sound (:channels 2 :statistics #t)
(fullmix "2.snd" 0 2 0 (list (list .1 .2) (list .3 .4)) 2.0))
(with-sound () (fullmix "pistol.snd" 0 2 2 #f -1.0))
(with-sound (:channels 2)
(let ((e0->0 (make-env '(0 0 1 1) :duration 2))
(e0->1 (make-env '(0 1 1 0) :duration 2))
(e1->0 (make-env '(0 1 1 0) :duration 2))
(e1->1 (make-env '(0 0 1 1) :duration 2)))
(fullmix "2.snd" 6 2 0 (list (list e0->0 e0->1) (list e1->0 e1->1))) 2.0))
(with-sound () (fullmix "pistol.snd"))
(with-sound () (fullmix "pistol.snd" 1))
(with-sound () (fullmix "pistol.snd" 1 1))
(with-sound () (fullmix "pistol.snd" 0 1 1))
(with-sound (:statistics #t) (fullmix "pistol.snd" 0 1 0 2.0))
(with-sound (:statistics #t :channels 2) (fullmix "pistol.snd" 0 1 0 2.0))
(with-sound (:statistics #t :channels 2) (fullmix "pistol.snd" 0 1 0 (list (list 0.1 0.7))))
(with-sound (:statistics #t :channels 2) (fullmix "pistol.snd" 0 1 0 (list (list 0.1 (list 0 0 1 1)))))
(with-sound (:channels 2 :output "one-2.snd") (do ((i 0 (+ i 1))) ((= i 10000)) (outa i 0.5) (outb i -0.5)))
(with-sound (:channels 4 :output "one-4.snd") (do ((i 0 (+ i 1))) ((= i 10000)) (outa i 0.5) (outb i -0.5) (outc i 0.1) (outd i -0.1)))
(with-sound (:statistics #t :channels 2) (fullmix "one-2.snd" 0 .2 0 '((1.0 0.5) (0.5 1.0))))
(with-sound (:statistics #t :channels 2) (fullmix "one-2.snd" 0 .2 0 (list (list 0.1 (list 0 0 1 1)) (list (list 0 1 1 0) .5))))
(with-sound (:statistics #t :channels 2)
(let ((e0->0 (make-env '(0 0 1 1) :end 10000))
(e0->1 (make-env '(0 1 1 0) :end 10000))
(e1->0 (make-env '(0 1 1 0) :end 10000))
(e1->1 (make-env '(0 0 1 1) :end 10000)))
(fullmix "one-2.snd" 0 .2 0 (list (list e0->0 e0->1) (list e1->0 e1->1)))))
(with-sound (:statistics #t :channels 2 :reverb jc-reverb)
(let ((e0->0 (make-env '(0 0 1 1) :end 10000))
(e0->1 (make-env '(0 1 1 0) :end 10000))
(e1->0 (make-env '(0 1 1 0) :end 10000))
(e1->1 (make-env '(0 0 1 1) :end 10000)))
(fullmix "one-2.snd" 0 .2 0 (list (list e0->0 e0->1) (list e1->0 e1->1)) #f .1)))
(with-sound () (fullmix "oboe.snd" 0 2 0 #f '(0 0.5 1 1 2 .1)))
|#
|
