Changeset 65f1edc

Timestamp:

Nov 30, 2004, 11:17:19 PM (20 years ago)

Author:

Paul Brossier <piem@altern.org>

Branches:

feature/autosink, feature/cnn, feature/cnn_org, feature/constantq, feature/crepe, feature/crepe_org, feature/pitchshift, feature/pydocstrings, feature/timestretch, fix/ffmpeg5, master, pitchshift, sampler, timestretch, yinfft+

Children:

09b082d

Parents:

00e4659

Message:

updated aubiocut
aubiocut now seeks local minima before the peak, to cut at the beginning of the
attack rather than at an arbitrary three frames ahead of the peak.

File:

• python/aubiocut (modified) (3 diffs)

python/aubiocut

@@ -8 +8 @@
 import sys
 
+bufsize   = 1024
+hopsize   = bufsize/2
+
 def getonsets(filein,threshold):
-        bufsize   = 1024
-        hopsize   = bufsize/2
         frameread = 0
         filei     = sndfile(filein)
@@ -21 +22 @@
         #fileo     = sndfile(newname,model=filei)
         mylist    = list()
+        ovalist   = [0., 0., 0., 0., 0., 0.]
         while(readsize==hopsize):
                 readsize = filei.read(hopsize,myvec)
                 isonset,val = opick.do(myvec)
+                ovalist.append(val)
+                ovalist.pop(0)
                 if (isonset == 1):
-                    now = (frameread-4)*hopsize/(srate+0.)
-                    #del fileo
-                    #fileo = sndfile("%s%f%s" % ("/tmp/",now,filein[-4:]),model=filei)
-                    mylist.append(now)
+                        print frameread
+                        i=len(ovalist)-1
+                        # find local minima 
+                        while ovalist[i-1] < ovalist[i] and i > 0:
+                                i -= 1
+                        now = (frameread-i+1)*hopsize/(srate+0.)
+                        #del fileo
+                        #fileo = sndfile("%s%f%s" % ("/tmp/",now,filein[-4:]),model=filei)
+                        mylist.append(now)
                 #writesize = fileo.write(readsize,myoldvec)
                 frameread += 1
@@ -34 +43 @@
 
 def cutfile(filein,onsets):
-        hopsize   = 512
         frameread = 0
         readsize  = hopsize