tcp1p Posted July 27, 2021 Share Posted July 27, 2021 I use iTunes to manage my music library which is stored on a NAS and I also have a Sonos system which uses/plays from my music library on the NAS. As iTunes doesn't support FLAC, I simply convert my FLAC files to Apple lossless (ALAC / .M4A) then import them into iTunes. However, I've just found that the Sonos system is not playing the more recently converted ALAC files, Sonos gives an error 'unable to play [filename] - the file is in an unsupported format.' The files do play on iTunes and on Windows 10 Groove player. If I use an alternate converter, e.g. dBpoweramp it works on iTunes, Groove and Sonos! This may be unrelated, but I also note that the metadata is being manipulated, and when iTunes imports it after it has been converted by Switch, iTunes gives it a different name to that it previously had and also to what the dBpoweramp converted file is renamed to - iTunes renames it based upon the metadata to and gives it a filename of 1-01 xxxxx.m4a, 1-02 xxxxx.m4a or similar, whereas normally it would be 01 xxxxx.m4a Any ideas? Link to comment Share on other sites More sharing options...
tcp1p Posted July 27, 2021 Author Share Posted July 27, 2021 Fixed: The Apple Lossless Output Options need the following settings to be changed from the defaults Sample Rate: 44100 Hz Channels: Stereo Link to comment Share on other sites More sharing options...
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