cortegedusage
commented
6 years ago hmm this sounds interesting,
although I'm not a programmer but merely an enthusiast. I'm wondering how you apply those value's because as far as I know (and can tell by listening) Spotify is not using any kind of gain reduction (replaygain) to get the volume straight but it uses compression to achieve this. So maybe this is why you don't get the results you want.
Btw. Is there any light on a new owner for librespot, because good things are happening now, shuffle, repeat, start volume. But not in one place, and it would be a shame because it's such a good piece of software.
anyways, we'll see.
2018-01-06 13:26 GMT+01:00 herrernst notifications@github.com:
(I know this project is not really maintained anymore, but I wanted to document this in case if anyone is interested.)
The official Spotify clients have an option (enabled by default) to normalize volume, which adjust the volume of differently mastered songs to sound equally loud (see https://en.wikipedia.org/wiki/Audio_normalization). This is primarily important when playing playlists.
Some pre-computed compensation values are stored in the proprietary ogg header (as 32 LE floats, starting at offset 144). I have a branch which reads these values and applies the first if librespot is started with --enable-volume-normalization (I don't yet know what the others are good for): https://github.com/herrernst/librespot/tree/volume-normalization The resulting level still different from the Spotify client though.
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herrernst
kingosticks
(I know this project is not really maintained anymore, but I wanted to document this in case if anyone is interested.)
The official Spotify clients have an option (enabled by default) to normalize volume, which adjust the volume of differently mastered songs to sound equally loud (see https://en.wikipedia.org/wiki/Audio_normalization). This is primarily important when playing playlists.
Some pre-computed compensation values are stored in the proprietary ogg header (as 32 LE floats, starting at offset 144). I have a branch which reads these values and applies the first (I don't yet know what the others are good for) if librespot is started with
--enable-volume-normalization: https://github.com/herrernst/librespot/tree/volume-normalization The resulting level still different from the Spotify client though.