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• Add multiple audio over a background audio using ffmpeg

  26 février 2017, par Vivek Bhatt

  I am trying to create an audio file which will have a base audio and multiple other audios over it.
  And also when the overlayed audio plays, the background audio should be mute or in lower volume.

  For eg :
  There is a song A.mp3. Over this song, i want to add multiple other audios (1.mp3, 2.mp3, 3.mp3 ......) at a particular time period. Let say, 1.mp3 plays at 5th sec to 8th sec, 2 .mp3 plays at 10th sec to 12th sec and so on.
  Also this should be added as an overlay such that, background sound will always be playing and when the overlayed audio plays, the background audio should be muted or slowed in volume.

  I tried with ffmeg library but haven’t found any solution yet.

• HTML5 icecast stream and pausing stream to add advert

  2 avril 2019, par RussellHarrower

  So I have not found a good solution to add audio advertising to our radio station for users who are not in the stations main area (western Australia).

  So I was wondering is there away that anyone knows of, that would allow a code be it ffmpeg or java/JavaScript to listen for the song that is currently playing (it maybe delayed by 30seconds) and after the song ends start an audio ad from a mongodb database.

  I know how to do the mongodb database part.

  What I need to figure out is how to detect that the song is finishing or other option is to store the stations adverts in the db as raw data or even better we could air a 0.1sec file that is just blank and that filename tells the script to lower audio player ones volume and boost audio two volume.

  When station ads end we play another filename with same length and reverse the process.

  Ok sorry if that’s me thinking out loud but if you have any ideas that would be great.

  The only issue with above is TuneIn app won’t work with an IFrame we need to supply them an audio url.

  So if anyone know how to do this in ffmpeg and only require 1 url which can detect users location that be better solution.

  All ideas welcomed and yes I googled and Bing searched however I don’t have 30,000$ for hardware companies are selling. There has to be an open source solution.

• Dynamically set pitches of an mp3 to the pitches of a sample mp3 using JavaScript

  7 juillet 2023, par Maker of worlds

  I am looking for a way set the pitch and tone of an audio file to the pitch and tone of a reference audio file. I can't seem to find a solution anywhere. an example would be if I used a reference and was some song, and the main audio was me talking, it would sound like my voice is talking along the pitch of the song.

  


  I tried the web Api but couldn't find a good solution.

  


  Thank you in advance !