The moving-autocorrelation mus-data array does not
have any data until you call the generator.
(let* ((n 512)
(hop 128)
(ac (make-moving-autocorrelation (make-readin "oboe.snd") n hop
))
(mydata (make-float-vector hop)))
;; call it to get some data:
(moving-autocorrelation ac) ; fill mus-data
(format #t "mus-data:\n")
(let* ((data (mus-data ac))
(len (length data)))
(format #t "length data: ~A\n " len )
(set! mydata (mus-data ac))
(do ((i 0 (+ i 1)))
((= i hop))
(format #t "~A ~0,12F\n " i (mydata i) ) )))
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