Changeset a0fd4e4 for python/aubio

Timestamp:

Apr 2, 2005, 3:29:23 PM (19 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:

cf7c76a

Parents:

e50b695

Message:

merge aubionotes and aubionotesmedian

add make_audio_plot to gnuplot.py
adds autocorrelation to mathutils
adds Makefile.in to junk files

File:

• python/aubio/gnuplot.py (modified) (3 diffs)

python/aubio/gnuplot.py

@@ -109 +109 @@
                         data.append(myvec.get(curpos,i))
                         curpos+=1
-        # FIXME again for the last frame
-        curpos = 0
-        while (curpos < readsize):
-                data.append(myvec.get(curpos,i))
-                curpos+=1
         time = arange(len(data))*framestep
         return time,data
 
-def plot_audio(filenames, fileout=None, start=0, end=None, noaxis=None, task=audio_to_array):
+def plot_audio(filenames, fileout=None, start=0, end=None, noaxis=None):
         g = Gnuplot.Gnuplot(debug=1, persist=1)
         d = []
@@ -125 +120 @@
         g.gnuplot('set multiplot;')
         while (len(filenames)):
-                b,a = task(filenames.pop(0))
-                d.append(Gnuplot.Data(b,a))
+                d.append(plot_audio_make(filenames.pop(0)))
                 if not noaxis and todraw==1:
                         g.xlabel('Time (s)')
@@ -141 +135 @@
                 g.hardcopy(fileout, enhanced=1, color=0)
 
+def make_audio_plot(time,data,maxpoints=10000):
+        """ create gnuplot plot from an audio file """
+        import numarray
+        length = len(time)
+        downsample = length/maxpoints
+        if downsample == 0: downsample = 1
+        x = numarray.array(time).resize(length)[0:-1:downsample]
+        y = numarray.array(data).resize(length)[0:-1:downsample]
+        return Gnuplot.Data(x,y,with='lines')