Editing Audio - BazzaCuda/MinimalistMediaPlayerX GitHub Wiki

Wiki Page: Video Editing
Wiki Page: Video Editing Example
Wiki Page: 4-Key Edits
Help Page: Main Editing Topic
Help Page: Keyframes
Help Page: Editing Chapters
Help Page: Editing Troubleshooting

Config Dialog: Keyframes

Editing Audio

MMP provides excellent audio and video editing facilities

  • for the user, editing is really fast and non-fiddly
  • you can edit and export the finished product without even stopping playback!
  • editing is "lossless" and doesn't require that the exported audio/video be re-encoded
  • in effect, you are doing a copy/paste from your original file to the edited file
  • consequently, the quality of the exported file is identical to the original

FFmpeg's production of audio files is a little more involved than its handling of video files

  • there are certain aspects of the audio and container formats, both of the input and the output files, that need to be taken into consideration
  • if an audio file contains a "cover art" image, this also adds another complication depending on the audio file container format, .mp3, .m4a, .mkv, etc
  • FFmpeg requires different parameters to "attach" the image, depending on the container format
  • and if you're converting Editor segments to chapters, plus cover art, this adds further complications
  • this is particularly true when trying to devise "generic" instructions to FFmpeg which will work for the majority of audio files
  • nevertheless, MMP and FFmpeg combine to do a sterling job together
  • where possible, MMP will create an audio container with the same file extension as the file being edited
  • where this is not possible, MMP and FFmpeg will create an MKV container with a .mkv file extension
  • when adding chapters, the output file will always be an MKV container

Album MetaData

  • all metadata (Title, Album, Artist, etc) present in the audio file being edited will be copied to the exported audio file

Cover Art

  • if your audio file contains Cover Art in the form of an image attachment, this will be copied to your exported audio file
  • the image is extracted first to a "cover.jpg" file
  • the individual exported segments will not contain the Cover Art image
  • the Cover Art will be re-attached during the final export stage
  • if the folder already contains a "cover.jpg" file, MMP will not overwrite it
  • if the existing "cover.jpg" is not what you want, you should copy the audio file to a different folder and edit it there
  • any "cover.jpg" file that exists in the folder during the final export stage will be attached to the exported audio file
  • consequently, you can replace the audio file's current Cover Art image with a new one

Adding Cover Art

  • if the audio file does not contain Cover Art in the form of an image attachment, you can add it
  • simply have any "cover.jpg" file in the same folder as your edited audio file
  • the Cover Art image will be attached during the final stage of the export
  • if you don't want add Cover Art, just ensure that you're editing the file in a folder that doesn't already contain a "cover.jpg" file
  • if all you want to do is to add Cover Art to an audio file, simply
    • have your desired "cover.jpg" file in the same folder as the audio file
    • open the audio file in MMP
    • open the Audio & Video Timeline Editor (Ctrl-[E])
    • on the "Options" tab of the Segments & Streams panel, uncheck "Write Chapters for Audio files"
    • click the Export button
    • that's it!

.flac Lossless Audio Files

You can certainly edit and export excerpts of .flac audio files but you will likely find that the reported duration of every exported segment and the final exported file is the same as the duration of the original file, even though the actual duration isn't

  • this is because FFmpeg will only rewrite the .flac header if you re-encode the audio stream
  • MMP deliberately doesn't support re-encoding of audio and video files
  • this is what makes editing and exporting of editing files so quick; it is basically a copy/paste operation
  • the option to re-encode files might be considered if there is enough demand for it
  • also, you can if you wish retrieve the FFmpeg command from the .log file and rerun an amended version of it in a Console Window to include re-encoding


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