Add option to normalize audio level across multiple podcasts
I have podcasts from multiple sources in my playlist, and when i listen to the playlist i have to adjust volume after every transition from a podcast to the next. Is there a way to normalize the sound/audio level accross podcasts within the playlist, or to adjust volume within each podcast setting. Thank you.
Volume disparity within a single Podcast can be a problem as well. There is a spoken voice Podcast for the John bachelor shall that I listen to and his ads are at least double the volume of the broadcast itself
I also would appreciate this functionality.
Although I do use the "boosts volume" option on one podcast, it "overshoots" the others now by a small (but annoying) margin.
As a proposed code/library you might want to look into FFmpeg's implementation of their solution: https://trac.ffmpeg.org/wiki/AudioVolume and http://ffmpeg.org/ffmpeg-filters.html#loudnorm which is based on the EBU R128 broadcasting recommendation (https://tech.ebu.ch/docs/r/r128.pdf)
As a bonus, ffmpeg can be compiled as LGPL compliant (2.1) (http://ffmpeg.org/legal.html) and if dynamically linked (not embedded) should pose no problem.