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pydub | Manipulate audio with a simple and easy high level interface | Speech library

 by   jiaaro Python Version: v0.25.1 License: MIT

 by   jiaaro Python Version: v0.25.1 License: MIT

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kandi X-RAY | pydub Summary

pydub is a Python library typically used in Telecommunications, Media, Media, Entertainment, Artificial Intelligence, Speech applications. pydub has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has high support. You can download it from GitHub.
Manipulate audio with a simple and easy high level interface
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Quality
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Security
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kandi-support Support

  • pydub has a highly active ecosystem.
  • It has 5557 star(s) with 743 fork(s). There are 126 watchers for this library.
  • It had no major release in the last 12 months.
  • There are 188 open issues and 248 have been closed. On average issues are closed in 65 days. There are 24 open pull requests and 0 closed requests.
  • It has a positive sentiment in the developer community.
  • The latest version of pydub is v0.25.1
pydub Support
Best in #Speech
Average in #Speech
pydub Support
Best in #Speech
Average in #Speech

quality kandi Quality

  • pydub has 0 bugs and 0 code smells.
pydub Quality
Best in #Speech
Average in #Speech
pydub Quality
Best in #Speech
Average in #Speech

securitySecurity

  • pydub has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
  • pydub code analysis shows 0 unresolved vulnerabilities.
  • There are 0 security hotspots that need review.
pydub Security
Best in #Speech
Average in #Speech
pydub Security
Best in #Speech
Average in #Speech

license License

  • pydub is licensed under the MIT License. This license is Permissive.
  • Permissive licenses have the least restrictions, and you can use them in most projects.
pydub License
Best in #Speech
Average in #Speech
pydub License
Best in #Speech
Average in #Speech

buildReuse

  • pydub releases are available to install and integrate.
  • Build file is available. You can build the component from source.
  • Installation instructions, examples and code snippets are available.
  • pydub saves you 2301 person hours of effort in developing the same functionality from scratch.
  • It has 5328 lines of code, 472 functions and 25 files.
  • It has high code complexity. Code complexity directly impacts maintainability of the code.
pydub Reuse
Best in #Speech
Average in #Speech
pydub Reuse
Best in #Speech
Average in #Speech
Top functions reviewed by kandi - BETA

kandi has reviewed pydub and discovered the below as its top functions. This is intended to give you an instant insight into pydub implemented functionality, and help decide if they suit your requirements.

  • Read audio from file
    • Create a WAV file from a file
    • Log subprocess output
    • Return a temporary file descriptor
  • Calculate a ratecv
    • Format the struct format
    • Get a sample from the given size
    • Check parameters
  • Read a wav file
    • Play an audio segment
      • Convert lin to lin
        • Convert to mono
          • Convert a CP
            • Compute the factor between two Strings
              • Strip silence
                • Compute the maximum pp
                  • Return the number of samples crossing the given size
                    • Multiply a list of samples
                      • Bias to given size
                        • Return HTML representation of the video
                          • Compute the min and max of the given cpus
                            • Reverse the contents of a cp
                              • Find the index of the most common subsequence between two sequences
                                • Find the best fit between two sequences
                                  • Compute the average power p
                                    • Compute an eq

                                      Get all kandi verified functions for this library.

                                      Get all kandi verified functions for this library.

                                      pydub Key Features

                                      Manipulate audio with a simple and easy high level interface

                                      Quickstart

                                      copy iconCopydownload iconDownload
                                      from pydub import AudioSegment
                                      
                                      song = AudioSegment.from_wav("never_gonna_give_you_up.wav")
                                      

                                      Debugging

                                      copy iconCopydownload iconDownload
                                      >>> import logging
                                      
                                      >>> l = logging.getLogger("pydub.converter")
                                      >>> l.setLevel(logging.DEBUG)
                                      >>> l.addHandler(logging.StreamHandler())
                                      
                                      >>> AudioSegment.from_file("./test/data/test1.mp3")
                                      subprocess.call(['ffmpeg', '-y', '-i', '/var/folders/71/42k8g72x4pq09tfp920d033r0000gn/T/tmpeZTgMy', '-vn', '-f', 'wav', '/var/folders/71/42k8g72x4pq09tfp920d033r0000gn/T/tmpK5aLcZ'])
                                      <pydub.audio_segment.AudioSegment object at 0x101b43e10>
                                      

                                      Installation

                                      copy iconCopydownload iconDownload
                                      pip install pydub
                                      

                                      Playback

                                      copy iconCopydownload iconDownload
                                      from pydub import AudioSegment
                                      from pydub.playback import play
                                      
                                      sound = AudioSegment.from_file("mysound.wav", format="wav")
                                      play(sound)
                                      

                                      Getting ffmpeg set up

                                      copy iconCopydownload iconDownload
                                      # libav
                                      brew install libav
                                      
                                      ####    OR    #####
                                      
                                      # ffmpeg
                                      brew install ffmpeg
                                      

                                      Ogg exporting and default codecs

                                      copy iconCopydownload iconDownload
                                      from pydub import AudioSegment
                                      song = AudioSegment.from_mp3("test/data/test1.mp3")
                                      song.export("out.ogg", format="ogg")  # Is the same as:
                                      song.export("out.ogg", format="ogg", codec="libvorbis")
                                      

                                      Example Use

                                      copy iconCopydownload iconDownload
                                      import os
                                      import glob
                                      from pydub import AudioSegment
                                      
                                      video_dir = '/home/johndoe/downloaded_videos/'  # Path where the videos are located
                                      extension_list = ('*.mp4', '*.flv')
                                      
                                      os.chdir(video_dir)
                                      for extension in extension_list:
                                          for video in glob.glob(extension):
                                              mp3_filename = os.path.splitext(os.path.basename(video))[0] + '.mp3'
                                              AudioSegment.from_file(video).export(mp3_filename, format='mp3')
                                      

                                      How about another example?

                                      copy iconCopydownload iconDownload
                                      from glob import glob
                                      from pydub import AudioSegment
                                      
                                      playlist_songs = [AudioSegment.from_mp3(mp3_file) for mp3_file in glob("*.mp3")]
                                      
                                      first_song = playlist_songs.pop(0)
                                      
                                      # let's just include the first 30 seconds of the first song (slicing
                                      # is done by milliseconds)
                                      beginning_of_song = first_song[:30*1000]
                                      
                                      playlist = beginning_of_song
                                      for song in playlist_songs:
                                      
                                          # We don't want an abrupt stop at the end, so let's do a 10 second crossfades
                                          playlist = playlist.append(song, crossfade=(10 * 1000))
                                      
                                      # let's fade out the end of the last song
                                      playlist = playlist.fade_out(30)
                                      
                                      # hmm I wonder how long it is... ( len(audio_segment) returns milliseconds )
                                      playlist_length = len(playlist) / (1000*60)
                                      
                                      # lets save it!
                                      with open("%s_minute_playlist.mp3" % playlist_length, 'wb') as out_f:
                                          playlist.export(out_f, format='mp3')
                                      

                                      How to change volume of stem files while playing using python

                                      copy iconCopydownload iconDownload
                                      def callback(in_data, frame_count, time_info, status):
                                          global drumsMod, vocalsMod, bassMod, otherMod
                                          drums = drumsWF.readframes(frame_count)
                                          vocals = vocalsWF.readframes(frame_count)
                                          bass = bassWF.readframes(frame_count)
                                          other = otherWF.readframes(frame_count)
                                          decodedDrums = numpy.frombuffer(drums, numpy.int16)
                                          decodedVocals = numpy.frombuffer(vocals, numpy.int16)
                                          decodedBass = numpy.frombuffer(bass, numpy.int16)
                                          decodedOther = numpy.frombuffer(other, numpy.int16)
                                          
                                          newdata = (decodedDrums*drumsMod + decodedVocals*vocalsMod + decodedBass*bassMod + decodedOther*otherMod).astype(numpy.int16)
                                          return (newdata.tobytes(), pyaudio.paContinue)
                                      

                                      iOS can't play uploaded audio: JS MediaRecorder -> Blob -> Django Server -> AWS s3 -> JS decodeAudioData --> "EncodingError: Decoding Failed"

                                      copy iconCopydownload iconDownload
                                      var blob = new Blob(
                                          chunks,
                                          {
                                              type: mediaRecorder.mimeType
                                          }
                                      );
                                      

                                      ERROR: Could not build wheels for pycairo, which is required to install pyproject.toml-based projects

                                      copy iconCopydownload iconDownload
                                      apt-get install sox ffmpeg libcairo2 libcairo2-dev
                                      apt-get install texlive-full
                                      pip3 install manimlib  # or pip install manimlib
                                      
                                      pip3 install manimce  # or pip install manimce
                                      
                                      apt-get install sox ffmpeg libcairo2 libcairo2-dev
                                      apt-get install texlive-full
                                      pip3 install manimlib  # or pip install manimlib
                                      
                                      pip3 install manimce  # or pip install manimce
                                      

                                      CouldntDecodeError: Decoding failed. ffmpeg returned error code: 69

                                      copy iconCopydownload iconDownload
                                      try:
                                          audio = audiosegment.from_file(filename, "mp3")
                                      except:
                                          audio = audiosegment.from_file(filename, format="mp4")
                                      

                                      Mutagen: How can I "correctly" embed album art into mp3 file so that I can see the pitcure display as file icon

                                      copy iconCopydownload iconDownload
                                      path_mp3 = 'mc_test/to/01 Lapislazuli.mp3'
                                      file_mutagen = File(path_mp3)
                                      file_mutagen.tags['APIC:'].encoding
                                      
                                      path_mp3_foobar = 'mc_test/foobar/01 Lapislazuli.mp3'
                                      file_foobar = File(path_mp3_foobar)
                                      file_foobar.tags['APIC:'].encoding
                                      
                                      path_mp3 = 'mc_test/to/01 Lapislazuli.mp3'
                                      file_mutagen = File(path_mp3)
                                      file_mutagen.tags['APIC:'].encoding
                                      
                                      path_mp3_foobar = 'mc_test/foobar/01 Lapislazuli.mp3'
                                      file_foobar = File(path_mp3_foobar)
                                      file_foobar.tags['APIC:'].encoding
                                      

                                      pydub AudioSegment.export is locking a file on smb share. Can't delete that file

                                      copy iconCopydownload iconDownload
                                      audiostrip.close()
                                      

                                      Combining wav files programmatically - Python

                                      copy iconCopydownload iconDownload
                                      import time
                                      from pydub import AudioSegment
                                      sounds = []
                                      sound1 = AudioSegment.from_wav("Dropbox/PIREAD/1.wav")
                                      sound2 = AudioSegment.from_wav("Dropbox/PIREAD/2.wav")
                                      sound3 = AudioSegment.from_wav("Dropbox/PIREAD/3.wav")
                                      sound4 = AudioSegment.from_wav("Dropbox/PIREAD/4.wav")
                                      sound5 = AudioSegment.from_wav("Dropbox/PIREAD/5.wav")
                                      sound6 = AudioSegment.from_wav("Dropbox/PIREAD/6.wav")
                                      sound7 = AudioSegment.from_wav("Dropbox/PIREAD/7.wav")
                                      sound8 = AudioSegment.from_wav("Dropbox/PIREAD/8.wav")
                                      sound9 = AudioSegment.from_wav("Dropbox/PIREAD/9.wav")
                                      sound0 = AudioSegment.from_wav("Dropbox/PIREAD/0.wav")
                                      
                                      sounds=[sound1,sound2,sound3,sound4,sound5,sound6,sound7,sound8,sound9,sound0]
                                      # option1 using +=
                                      t1 = time.time()
                                      combined_sounds1 = AudioSegment.empty()
                                      for s in sounds
                                          combined_sounds1 += s
                                      t2 = time.time()
                                      # end of option1
                                      # option2 using from_mono_audiosegments
                                      t3 = time.time()
                                      combined_sounds2 = AudioSegment.from_mono_audiosegments(*sounds)
                                      t4 = time.time()
                                      # end of option2
                                      print('option1 (seconds):',t2-t1)
                                      print('option2 (seconds):',t4-t3)
                                      
                                      # Program to display the Fibonacci sequence up to n-th term
                                      from pydub import AudioSegment
                                          
                                      combined_sounds = ""
                                      sound1 = AudioSegment.from_wav("1_2.wav")
                                      sound2 = AudioSegment.from_wav("2_2.wav")
                                      sound3 = AudioSegment.from_wav("3_2.wav")
                                      sound4 = AudioSegment.from_wav("4_2.wav")
                                      sound5 = AudioSegment.from_wav("5_2.wav")
                                      sound6 = AudioSegment.from_wav("6_2.wav")
                                      sound7 = AudioSegment.from_wav("7_2.wav")
                                      sound8 = AudioSegment.from_wav("8_2.wav")
                                      sound9 = AudioSegment.from_wav("9_2.wav")
                                      sound0 = AudioSegment.from_wav("0_2.wav")
                                      
                                      
                                      
                                      nterms=1000
                                      # first two terms
                                      n1, n2 = 0, 1
                                      count = 0
                                      fib = ""
                                      
                                      # check if the number of terms is valid
                                      if nterms <= 0:
                                          print("Please enter a positive integer")
                                      # if there is only one term, return n1
                                      elif nterms == 1:
                                          print("Fibonacci sequence upto",nterms,":")
                                          print(n1)
                                      # generate fibonacci sequence
                                      else:
                                          print("Fibonacci sequence:")
                                          while count < nterms:
                                              #print(n1)
                                              fib += str(n1)
                                              nth = n1 + n2
                                             # update values
                                              n1 = n2
                                              n2 = nth
                                              count += 1
                                              
                                      i=-36
                                      j=0
                                      
                                      fibs = [fib[i:i+1000] for i in range(0, len(fib), 1000)]
                                      
                                      seg = 0
                                      for a in fibs:
                                          if seg == 2:
                                              break
                                              
                                          combined_sounds = AudioSegment.empty()
                                          seg +=1
                                          for x in a:
                                              i,j = -36,0
                                              s = eval("sound"+str(x))    
                                              s = s.apply_gain_stereo(i,j)
                                              combined_sounds += s
                                              i,j = j,i
                                              
                                      
                                          combined_sounds.export("joinedFile"+str(seg)+".wav", format="wav")
                                      

                                      Setting rms relative to another audio file using Pydub

                                      copy iconCopydownload iconDownload
                                      segmentTwo = segmentTwo.apply_gain(gain)
                                      

                                      Overlay wav files at different start times using Pydub

                                      copy iconCopydownload iconDownload
                                      silence_5_seconds = AudioSegment.silent(duration=5000)
                                      
                                      audio_2 = silence_5_seconds + audio_2
                                      

                                      Trimming audio returns empty files (Python)

                                      copy iconCopydownload iconDownload
                                      for s, e in startTimes, endTimes:
                                          print(s, e)
                                      
                                      for s, e in zip(startTimes, endTimes):
                                          print(s, e)
                                      
                                      for f, s, e in zip(files, startTimes, endTimes):
                                          song = AudioSegment.from_wav(path+'\\'+ f)
                                          extract = song[s:e]
                                          extract.export(f+'-extract.mp3', format="mp3")
                                      
                                      for s, e in startTimes, endTimes:
                                          print(s, e)
                                      
                                      for s, e in zip(startTimes, endTimes):
                                          print(s, e)
                                      
                                      for f, s, e in zip(files, startTimes, endTimes):
                                          song = AudioSegment.from_wav(path+'\\'+ f)
                                          extract = song[s:e]
                                          extract.export(f+'-extract.mp3', format="mp3")
                                      
                                      for s, e in startTimes, endTimes:
                                          print(s, e)
                                      
                                      for s, e in zip(startTimes, endTimes):
                                          print(s, e)
                                      
                                      for f, s, e in zip(files, startTimes, endTimes):
                                          song = AudioSegment.from_wav(path+'\\'+ f)
                                          extract = song[s:e]
                                          extract.export(f+'-extract.mp3', format="mp3")
                                      

                                      Community Discussions

                                      Trending Discussions on pydub
                                      • How to change volume of stem files while playing using python
                                      • iOS can't play uploaded audio: JS MediaRecorder -&gt; Blob -&gt; Django Server -&gt; AWS s3 -&gt; JS decodeAudioData --&gt; &quot;EncodingError: Decoding Failed&quot;
                                      • ERROR: Could not build wheels for pycairo, which is required to install pyproject.toml-based projects
                                      • CouldntDecodeError: Decoding failed. ffmpeg returned error code: 69
                                      • FLAC conversion utility not available - consider installing the FLAC command line application on Spyder/Windows 10
                                      • Mutagen: How can I &quot;correctly&quot; embed album art into mp3 file so that I can see the pitcure display as file icon
                                      • pydub AudioSegment.export is locking a file on smb share. Can't delete that file
                                      • Combining wav files programmatically - Python
                                      • Getting error while unit testing my machine learning model on Audio files
                                      • Setting rms relative to another audio file using Pydub
                                      Trending Discussions on pydub

                                      QUESTION

                                      How to change volume of stem files while playing using python

                                      Asked 2022-Feb-22 at 13:00

                                      I'm attempting to write a python project that plays multiple parts of a song at the same time.

                                      For background information, a song is split into "stems", and then each stem is played simultaneously to recreate the full song. What I am trying to achieve is using potentiometers to control the volume of each stem, so that the user can mix songs differently. For a product relation, the StemPlayer from Kanye West is what I am trying to achieve.

                                      I can change the volume of the overlayed song at the end, but what I want to do is change the volume of each stem using a potentiometer while the song is playing. Is this even possible using pyDub? Below is the code I have right now.

                                      from pydub import AudioSegment
                                      from pydub.playback import play
                                      
                                      vocals = AudioSegment.from_file("walkin_vocals.mp3")
                                      drums = AudioSegment.from_file("walkin_drums.mp3")
                                      bass = AudioSegment.from_file("walkin_bass.mp3")
                                      
                                      vocalsDrums = vocals.overlay(drums) 
                                      bassVocalsDrums = vocalsDrums.overlay(bass)
                                      
                                      songQuiet = bassVocalsDrums - 20
                                      
                                      play(songQuiet)
                                      

                                      ANSWER

                                      Answered 2022-Feb-22 at 13:00

                                      Solved this question, I ended up using pyaudio instead of pydub. With pyaudio, I was able to define a custom stream_callback function. Within this callback function, I multiply each stem by a modifier, then add each stem to one audio output.

                                      def callback(in_data, frame_count, time_info, status):
                                          global drumsMod, vocalsMod, bassMod, otherMod
                                          drums = drumsWF.readframes(frame_count)
                                          vocals = vocalsWF.readframes(frame_count)
                                          bass = bassWF.readframes(frame_count)
                                          other = otherWF.readframes(frame_count)
                                          decodedDrums = numpy.frombuffer(drums, numpy.int16)
                                          decodedVocals = numpy.frombuffer(vocals, numpy.int16)
                                          decodedBass = numpy.frombuffer(bass, numpy.int16)
                                          decodedOther = numpy.frombuffer(other, numpy.int16)
                                          
                                          newdata = (decodedDrums*drumsMod + decodedVocals*vocalsMod + decodedBass*bassMod + decodedOther*otherMod).astype(numpy.int16)
                                          return (newdata.tobytes(), pyaudio.paContinue)
                                      

                                      Source https://stackoverflow.com/questions/71216307

                                      Community Discussions, Code Snippets contain sources that include Stack Exchange Network

                                      Vulnerabilities

                                      No vulnerabilities reported

                                      Install pydub

                                      Open a WAV file. ... or an ogg, or flv, or anything else ffmpeg supports. Make the beginning louder and the end quieter. Concatenate audio (add one file to the end of another). How long is it?. Crossfade (again, beginning and end are not modified). Fade (note that you can chain operations because everything returns an AudioSegment). Save the results (again whatever ffmpeg supports). Save the results with tags (metadata). You can pass an optional bitrate argument to export using any syntax ffmpeg supports. Any further arguments supported by ffmpeg can be passed as a list in a 'parameters' argument, with switch first, argument second. Note that no validation takes place on these parameters, and you may be limited by what your particular build of ffmpeg/avlib supports.
                                      Installing pydub is easy, but don't forget to install ffmpeg/avlib (the next section in this doc). Or install the latest dev version from github (or replace @master with a release version like @v0.12.0)….

                                      Support

                                      You can file bugs in our github issues tracker, and ask any technical questions on Stack Overflow using the pydub tag. We keep an eye on both.

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