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• ffmpeg clean all noise background silences in a poscast

  23 mars 2019, par fireDevelop.com

  I have hundreds of podcast without music, just the voice and the room silence.
  In the silences, I have many clicks, respirations, etc...
  I need to clean all silences with a script, keeping intact the voice.

  In this picture you can see my dirty silences

  And here the result I want in all my audios

  When I use some scripts of sox. I don`t get the result I spect because the voice is affected by the script, the room-silence disappear and some clic still in the silences.

  Then in order to keep intact the voice, I want to do this :

  1. Delete all the silences longer than 3 seconds.

  ---

  2. Split all the audio and silences with in a sequence numbers. ie. :

     • 001-Silence-2.0seconds.wav
     • 002-voice.wav
     • 003-Silence-0.25seconds.wav
     • 004-voice.wav
     • 005-Silence-0.75seconds.wav
     • 006-voice.wav
     • ...
     • ...

  ---

  3. Before, run the script I created manually many files with silences of diferents silences I will use :

     • myManuallySilence-0.25seconds.wav
     • myManuallySilence-0.50seconds.wav
     • myManuallySilence-0.75seconds.wav
     • myManuallySilence-0.1seconds.wav
     • myManuallySilence-1.25seconds.wav
     • ...
     • ...
     • myManuallySilence-2.50seconds.wav
     • myManuallySilence-2.75seconds.wav
     • myManuallySilence-3.0seconds.wav

  ---

  4. the script will check the dirty silences duration and replace by the files myManuallySilence-x.xseconds.wav

  ---

  5. merge all files in one wav file, with the original voice and all the silences cleanned.

  ---

  At the moment I have only this script :

  # get the path of Adobe Audition and add timestamp in the output 
  
  filename
  
  fileName=out
  
  current_time=$(date "+%Y.%m.%d-%H.%M.%S")
  
  newFileName=$fileName.$current_time.wav
  
  #yourPathAPP=/Applications/Adobe\ Audition\ CC\ 2019/Adobe\ Audition\ 
  
  CC\ 2019.app
  
  yourPathAPP=/Volumes/6TB/Applications/ocenaudio.app
  
  # # First denoise audio
  
  
  
  # ## Get noise sample
  
   ffmpeg -i in.wav -vn -ss 00:00:00 -t 00:00:01 noise-sample.wav
  
  
  
  # ## Create noise profile
  
   sox noise-sample.wav -n noiseprof noise.prof
  
  
  
  # ## Clean audio from noise
  
   sox in.wav $newFileName noisered noise.prof 0.50
  
  # # Split audio by noise
  
   sox -V3 $newFileName output.wav silence 1 00:00:02.000 - 80d 1 
  
   00:00:02.000 -80d : newfile : restart
  
  
  
  # ####### (these settings worked for my computer mic - maybe we need to 
  
  finetune them later) #######

  Is getting all the voice in separate files like this :
  output001.wav
  output002.wav
  output003.wav
  output004.wav
  ...
  output00x.wav

  Please, any suggestion will be appreciated.
  Thanks so much in advance !

• Could not find codec parameters for stream 0

  14 février 2021, par khinester

  When I run this command :

  



  ffmpeg -y -i ./in.mp4 -c:v png -f image2pipe -thread_queue_size 1024 -r 25 -t 186.75 -i - -filter_complex overlay=0:0 -c:v libx264 -pix_fmt yuv420p -movflags +faststart ./out.mp4 < ./out.png


  



  I get an error :

  



  (git)-[master] 
ffmpeg version 2.8.11-0ubuntu0.16.04.1 Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
  configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
  WARNING: library configuration mismatch
  avcodec     configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv --enable-version3 --disable-doc --disable-programs --disable-avdevice --disable-avfilter --disable-avformat --disable-avresample --disable-postproc --disable-swscale --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libvo_aacenc --enable-libvo_amrwbenc
  libavutil      54. 31.100 / 54. 31.100
  libavcodec     56. 60.100 / 56. 60.100
  libavformat    56. 40.101 / 56. 40.101
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5. 40.101 /  5. 40.101
  libavresample   2.  1.  0 /  2.  1.  0
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  2.101 /  1.  2.101
  libpostproc    53.  3.100 / 53.  3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from './in.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    creation_time   : 1970-01-01 00:00:00
    encoder         : Lavf52.99.1
  Duration: 00:03:06.75, start: 0.000000, bitrate: 538 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 480x320 [SAR 1:1 DAR 3:2], 465 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc (default)
    Metadata:
      creation_time   : 1970-01-01 00:00:00
      handler_name    : VideoHandler
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 67 kb/s (default)
    Metadata:
      creation_time   : 1970-01-01 00:00:00
      handler_name    : SoundHandler
[image2pipe @ 0x15f7200] Could not find codec parameters for stream 0 (Video: png, none(pc)): unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
pipe:: could not find codec parameters
Input #1, image2pipe, from 'pipe:':
  Duration: N/A, bitrate: N/A
    Stream #1:0: Video: png, none(pc), 25 tbr, 25 tbn, 25 tbc
[buffer @ 0x15e2620] Unable to parse option value "0x0" as image size
[buffer @ 0x15e2620] Unable to parse option value "-1" as pixel format
[buffer @ 0x15e2620] Unable to parse option value "0x0" as image size
[buffer @ 0x15e2620] Error setting option video_size to value 0x0.
[graph 0 input from stream 1:0 @ 0x15e23e0] Error applying options to the filter.
Error configuring complex filters.
Invalid argument

Consider increasing the value for the 'analyzeduration' and 'probesize' options pipe:0: could not find codec parameters


  



  What am I missing in my setup ?

  


• ffmpeg split audio and silences in a files, and replace the silences by custom silences

  16 mars 2019, par fireDevelop.com

  I have hundreds of podcast without music, just the voice and the room silence.
  In the silences, I have many clicks, respirations, etc...
  I need to clean all silences with a script, keeping intact the voice.

  In this picture you can see my dirty silences

  And here the result I want in all my audios

  When I use some scripts of sox. I don`t get the result I spect because the voice is affected by the script, the room-silence disappear and some clic still in the silences.

  Then in order to keep intact the voice, I want to do this :

  1. Delete all the silences longer than 3 seconds.

  ---

  2. Split all the audio and silences with in a sequence numbers. ie. :

     • 001-Silence-2.0seconds.wav
     • 002-voice.wav
     • 003-Silence-0.25seconds.wav
     • 004-voice.wav
     • 005-Silence-0.75seconds.wav
     • 006-voice.wav
     • ...
     • ...

  ---

  3. Before, run the script I created manually many files with silences of diferents silences I will use :

     • myManuallySilence-0.25seconds.wav
     • myManuallySilence-0.50seconds.wav
     • myManuallySilence-0.75seconds.wav
     • myManuallySilence-0.1seconds.wav
     • myManuallySilence-1.25seconds.wav
     • ...
     • ...
     • myManuallySilence-2.50seconds.wav
     • myManuallySilence-2.75seconds.wav
     • myManuallySilence-3.0seconds.wav

  ---

  4. the script will check the dirty silences duration and replace by the files myManuallySilence-x.xseconds.wav

  ---

  5. merge all files in one wav file, with the original voice and all the silences cleanned.

  ---

  At the moment I have only this script :

      # First denoise audio
  
  
  
  ## Get noise sample
  
  ffmpeg -i in.wav -vn -ss 00:00:00 -t 00:00:01 noise-sample.wav
  
  
  
  ## Create noise profile
  
  sox noise-sample.wav -n noiseprof noise.prof
  
  
  
  ## Clean audio from noise
  
  sox in.wav clean.wav noisered noise.prof 0.21
  
  
  
  
  
  # Split audio by noise
  
  sox -V3 clean.wav output.wav silence 1 0.2 0.4% 1 0.2 0.4% : newfile : restart
  
  
  
  ####### (these settings worked for my computer mic - maybe we need to finetune them later) #######

  Is getting all the voice in separate files like this :
  output001.wav
  output002.wav
  output003.wav
  output004.wav
  ...
  output00x.wav

  Please, any suggestion will be appreciated.
  Thanks so much in advance !