Spotify does *not* stream lossless files (for example, TIDAL does have a
lossless streaming service). Spotify streams high bitrate lossy OGG
files. LMS then converts the OGG file to something that plays on many
different squeezebox players (e.g., FLAC).
That's not 100% accurate. The spotty helper (or rather librespot - which
the helper is using) transforms the OGG stream to PCM. LMS would take
that PCM stream and either send it to the player directly, or transcode
once again to flac or mp3.
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