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• How to fix out of bounds error in to_soundarray in moviepy ?

  16 décembre 2019, par Rad0n

  The code works with the default youtube_dl name but not outtmpl name that I put in ydl_opts

  the solution given here - https://www.reddit.com/r/moviepy/comments/dwc27w/to_sound_array_issue/
  doesnt seem to work

  here is the code -

  import numpy as np
  
  import matplotlib.pyplot as plt
  
  %matplotlib inline
  
  import moviepy.editor as mpy
  
  !pip install youtube_dl
  
  import youtube_dl
  
  
  
  
  
  url = 'https://www.youtube.com/watch?v=5pIpVK3Gecg' 
  
  start_ts = 170
  
  end_ts = 180
  
  
  
  ydl_opts = {
  
    'format': 'bestaudio/best',
  
    'postprocessors': [{
  
        'key': 'FFmpegExtractAudio',
  
        'preferredcodec': 'wav',
  
        'preferredquality': '192',
  
    }],
  
    'outtmpl': 'original.wav',
  
  
  
  }
  
  
  
  with youtube_dl.YoutubeDL(ydl_opts) as ydl:
  
    ydl.download([url])
  
  
  
  
  
  from moviepy.video.io.ffmpeg_tools import ffmpeg_extract_subclip
  
  
  
  ffmpeg_extract_subclip('original.wav' ,170, 180, targetname='clipped.wav')
  
  
  
  talk = mpy.AudioFileClip('clipped.wav')
  
  
  
  
  
  plt.axis('off')
  
  
  
  sample_rate = talk.fps
  
  
  
  NFFT = sample_rate /25
  
  audio_data = talk.to_soundarray()
  
  
  
  fig, ax = plt.subplots(nrows=1, ncols=1, figsize=(2.44, 2.44), dpi=100.)
  
  
  
  ax.axis('off')
  
  spectrum, freqs, time, im = ax.specgram(audio_data.mean(axis=1), NFFT=NFFT, pad_to=4096, Fs=sample_rate, 
  
                                          noverlap=512, mode='magnitude', )

  and here is the error -

  [youtube] 5pIpVK3Gecg: Downloading webpage
  
  [youtube] 5pIpVK3Gecg: Downloading video info webpage
  
  [download] original.wav has already been downloaded
  
  [download] 100% of 48.12MiB
  
  [ffmpeg] Correcting container in "original.wav"
  
  [ffmpeg] Post-process file original.wav exists, skipping
  
  
  
  [MoviePy] Running:
  
  >>> /root/.imageio/ffmpeg/ffmpeg-linux64-v3.3.1 -y -i original.wav -ss 170.00 -t 10.00 -vcodec copy -acodec copy clipped.wav
  
  ... command successful.
  
  
  
  ---------------------------------------------------------------------------
  
  
  
  IndexError                                Traceback (most recent call last)
  
  
  
  /usr/local/lib/python3.6/dist-packages/moviepy/audio/io/readers.py in get_frame(self, tt)
  
      189                     indices = indices - (self.buffersize // 2 - len(self.buffer) + 1)
  
  --> 190                 result[in_time] = self.buffer[indices]
  
      191                 return result
  
  
  
  IndexError: index -59041 is out of bounds for axis 0 with size 40960
  
  
  
  
  
  During handling of the above exception, another exception occurred:
  
  
  
  IndexError                                Traceback (most recent call last)
  
  
  
  10 frames
  
  
  
   in <module>()
  
       30 
  
       31 NFFT = sample_rate /25
  
  ---> 32 audio_data = talk.to_soundarray()
  
       33 
  
       34 fig, ax = plt.subplots(nrows=1, ncols=1, figsize=(2.44, 2.44), dpi=100.)
  
  
  
  local/lib/python3.6/dist-packages/decorator.py:decorator-gen-194> in to_soundarray(self, tt, fps, quantize, nbytes, buffersize)
  
  
  
  /usr/local/lib/python3.6/dist-packages/moviepy/decorators.py in requires_duration(f, clip, *a, **k)
  
       52         raise ValueError("Attribute 'duration' not set")
  
       53     else:
  
  ---> 54         return f(clip, *a, **k)
  
       55 
  
       56 
  
  
  
  /usr/local/lib/python3.6/dist-packages/moviepy/audio/AudioClip.py in to_soundarray(self, tt, fps, quantize, nbytes, buffersize)
  
      115             if self.duration > max_duration:
  
      116                 return stacker(self.iter_chunks(fps=fps, quantize=quantize,
  
  --> 117                                                 nbytes=2, chunksize=buffersize))
  
      118             else:
  
      119                 tt = np.arange(0, self.duration, 1.0/fps)
  
  
  
  &lt;__array_function__ internals> in vstack(*args, **kwargs)
  
  
  
  /usr/local/lib/python3.6/dist-packages/numpy/core/shape_base.py in vstack(tup)
  
      277         # raise warning if necessary
  
      278         _arrays_for_stack_dispatcher(tup, stacklevel=2)
  
  --> 279     arrs = atleast_2d(*tup)
  
      280     if not isinstance(arrs, list):
  
      281         arrs = [arrs]
  
  
  
  /usr/local/lib/python3.6/dist-packages/moviepy/audio/AudioClip.py in generator()
  
       82                 tt = (1.0/fps)*np.arange(pospos[i], pospos[i+1])
  
       83                 yield self.to_soundarray(tt, nbytes=nbytes, quantize=quantize,
  
  ---> 84                                          fps=fps, buffersize=chunksize)
  
       85 
  
       86         if progress_bar:
  
  
  
  local/lib/python3.6/dist-packages/decorator.py:decorator-gen-194> in to_soundarray(self, tt, fps, quantize, nbytes, buffersize)
  
  
  
  /usr/local/lib/python3.6/dist-packages/moviepy/decorators.py in requires_duration(f, clip, *a, **k)
  
       52         raise ValueError("Attribute 'duration' not set")
  
       53     else:
  
  ---> 54         return f(clip, *a, **k)
  
       55 
  
       56 
  
  
  
  /usr/local/lib/python3.6/dist-packages/moviepy/audio/AudioClip.py in to_soundarray(self, tt, fps, quantize, nbytes, buffersize)
  
      128         #print tt.max() - tt.min(), tt.min(), tt.max()
  
      129 
  
  --> 130         snd_array = self.get_frame(tt)
  
      131 
  
      132         if quantize:
  
  
  
  local/lib/python3.6/dist-packages/decorator.py:decorator-gen-132> in get_frame(self, t)
  
  
  
  /usr/local/lib/python3.6/dist-packages/moviepy/decorators.py in wrapper(f, *a, **kw)
  
       87         new_kw = {k: fun(v) if k in varnames else v
  
       88                  for (k,v) in kw.items()}
  
  ---> 89         return f(*new_a, **new_kw)
  
       90     return decorator.decorator(wrapper)
  
       91 
  
  
  
  /usr/local/lib/python3.6/dist-packages/moviepy/Clip.py in get_frame(self, t)
  
       92                 return frame
  
       93         else:
  
  ---> 94             return self.make_frame(t)
  
       95 
  
       96     def fl(self, fun, apply_to=None, keep_duration=True):
  
  
  
  /usr/local/lib/python3.6/dist-packages/moviepy/audio/io/AudioFileClip.py in <lambda>(t)
  
       76         self.buffersize = self.reader.buffersize
  
       77 
  
  ---> 78         self.make_frame = lambda t: self.reader.get_frame(t)
  
       79         self.nchannels = self.reader.nchannels
  
       80 
  
  
  
  /usr/local/lib/python3.6/dist-packages/moviepy/audio/io/readers.py in get_frame(self, tt)
  
      200                 # repeat the last frame instead
  
      201                 indices[indices>=len(self.buffer)] = len(self.buffer) -1
  
  --> 202                 result[in_time] = self.buffer[indices]
  
      203                 return result
  
      204 
  
  
  
  IndexError: index -59041 is out of bounds for axis 0 with size 40960
  
  
  
  </lambda></module>

  it seems to work when I don’t set outtmpl option in ydl_opts and manually enter the name that ydl auto assigns to ffmpeg_extract_subclip

  import matplotlib.pyplot as plt
  
  %matplotlib inline
  
  import moviepy.editor as mpy
  
  !pip install youtube_dl
  
  import youtube_dl
  
  
  
  ydl_opts = {
  
      'format': 'bestaudio/best',
  
      'postprocessors': [{
  
          'key': 'FFmpegExtractAudio',
  
          'preferredcodec': 'wav',
  
          'preferredquality': '192',
  
      }],
  
  }
  
  with youtube_dl.YoutubeDL(ydl_opts) as ydl:
  
      ydl.download(['https://www.youtube.com/watch?v=5pIpVK3Gecg'])
  
  
  
  #Tyler, The Creator - 'IGOR,' Odd Future and Scoring a Number 1 Album _ Apple Music-5pIpVK3Gecg.wav is the name
  
  #that youtube_dl auto assigns. I got it from the output of ydl.download command
  
  
  
  from moviepy.video.io.ffmpeg_tools import ffmpeg_extract_subclip
  
  ffmpeg_extract_subclip("Tyler, The Creator - 'IGOR,' Odd Future and Scoring a Number 1 Album _ Apple Music-5pIpVK3Gecg.wav", 170, 180, targetname="talk.wav")
  
  
  
  
  
  talk = mpy.AudioFileClip('talk.wav')
  
  
  
  
  
  sample_rate = talk.fps
  
  NFFT = sample_rate /25
  
  audio_data = talk.to_soundarray()

• Merge commit ’483321fe789566dcb27b6387c00ea16dd86bc587’

  26 mars 2014, par Michael Niedermayer

  Merge commit ’483321fe789566dcb27b6387c00ea16dd86bc587’
  * commit ’483321fe789566dcb27b6387c00ea16dd86bc587’ :
  
    truehd : add hand-scheduled ARM asm version of ff_mlp_rematrix_channel.
  See : 89135716fd4c2963e01e0155547c47bf709f1aa3
  
  Merged-by : Michael Niedermayer <michaelni@gmx.at>
  

• ffmpeg how to reduce bass and increase treble like audacity

  13 avril 2020, par Santhosh Yedidi

  I have an mp3 file. I want to reduce bass and increase treble.
I am trying :

  



  ffmpeg -y -i original.mp3 -af "treble=g=10" test1.mp3

  



  but its not same as the effect of Audacity->Effect->bass and treble (increase treble and reduce bass)

  



  below is the image from audacity :