ReplayGain

[jes]

(15-04-2023 12:29)simoncn Wrote:  That makes sense. In that case the APEv2 tags would need to be converted to ID3v2 so that MinimStreamer/FFmpeg can read them.

Do you have a suggestion how this can be done? All song information is in ID3v2 tags, only replaygain info is in APE tags. I have not yet found a simple way to merge the two formats into one without fields being overwritten and info lost. The fields are 100% complimentary, no overlaps.

There also seems to be a difference in replaygain values for the same mp3 file if MP3Gain or Foobar2000 is used. For example:

MP3Gain APE tags:
MP3GAIN_MINMAX="112,181"
MP3GAIN_UNDO="+005,+005,N"
REPLAYGAIN_TRACK_GAIN="-0.995000 dB"
REPLAYGAIN_TRACK_PEAK="0.446419"

Foobar2000 ID3v2 tags:
TXXX="replaygain_track_gain -10.09 dB"
TXXX="replaygain_track_peak 1.087579"

If I undo MP3gain changes, I get these APE tags:
MP3GAIN_MINMAX="117,186"
MP3GAIN_UNDO="+000,+000,N"
REPLAYGAIN_TRACK_GAIN="-8.520000 dB"
REPLAYGAIN_TRACK_PEAK="1.061769"

I guess APE tags could be just deleted at this stage.

Sounds all a bit complex and any clarifications are welcome.

PS: ReplayGain done with Foobar2000 rather than MP3Gain appears to work with MinimStreamer/ffmpeg.