Changeset c0ec39c

Timestamp:

Dec 1, 2004, 8:05:19 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:

e997b1a

Parents:

36bc60c

Message:

 

Files:

• ChangeLog (modified) (1 diff)
• python/aubiocut (modified) (3 diffs)

ChangeLog

@@ -2 +2 @@
         * configure.ac: added -lmx on macosx
         * python/aubiocut: seeks for local minima before peak
+                           added zero crossing search
         * src/pitchyinc.c: adds draft for all-in-one faster function
         * examples/*.c: added ladcca client (needs work)

python/aubiocut

@@ -8 +8 @@
 import sys
 
-bufsize   = 1024
+bufsize   = 512
 hopsize   = bufsize/2
 
@@ -29 +29 @@
                 ovalist.pop(0)
                 if (isonset == 1):
-                        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.)
+                        now = (frameread+1-i)*hopsize/(srate+0.)
                         #del fileo
                         #fileo = sndfile("%s%f%s" % ("/tmp/",now,filein[-4:]),model=filei)
@@ -51 +50 @@
         fileo     = sndfile(newname,model=filei)
         myvec     = fvec(hopsize,channels)
+        mycopy    = fvec(hopsize,channels)
         while(readsize==hopsize):
                 readsize = filei.read(hopsize,myvec)
                 now = (frameread)*hopsize/(srate+0.)
-                writesize = fileo.write(readsize,myvec)
-                if len(onsets) and now == onsets[0]:
+                # write to current file
+                if len(onsets) and now >= onsets[0]:
                     onsets.pop(0)
+                    # write up to 1st zero crossing
+                    zerocross = 0
+                    while ( abs( myvec.get(zerocross,0) ) > 0.002 ):
+                        zerocross += 1
+                    writesize = fileo.write(zerocross,myvec)
+                    fromcross = 0
+                    while (zerocross < readsize):
+                        mycopy.set(myvec.get(zerocross,0),fromcross,0)
+                        fromcross += 1
+                        zerocross += 1
                     del fileo
-                    fileo = sndfile("%s%f%s%s" % ("/tmp/",now,".",filein.split(".")[-1]),model=filei)
+                    fileo = sndfile("%s%s%f%s%s" % 
+                        (filein.split(".")[0].split("/")[-1],".",now,".",filein.split(".")[-1]),model=filei)
+                    # write after 1st zero crossing to new file
+                    writesize = fileo.write(fromcross,mycopy)
+                else:
+                    writesize = fileo.write(readsize,myvec)
                 frameread += 1
         del fileo