bb7668 wrote: 
> Dear all,
> 
> Sorry if my question is too elementary or has been discussed somewhere
> else in this forum.
> 
> My setup is as follows:-
> 
> Synology DS112 (with LMS  Version: 7.7.2 - r33893)
> SB Touch (with firmware Version: 7.7.2 - r9663) with EDO installed
> Anedio D2 (connecting with SB Touch via USB)
> All my music files (16/44, 24/96 or 24/192) are in AIFF format
> 
> As all my music files are in AIFF format, in the
> LMS>Setting>Advanced>File Type>AIFF, I have only selected "AIFF-AIFF" to
> Native to avoid any transcoding.  For 16/44 file, this setting streams
> the music file from the NAS to the SB Touch perfectly.  I also note that
> sampling frequency is properly switched to 44kHz for the Anedio. 
> However, for 24/96 files (or higher) files, all I hear is hiss sound
> from the speaker.
> 
> To deal with this problem, I adopted the above setting except that I
> have also checked "AIFF-FLAC" to ffmpeg.  With this setting, I can now
> hear sound generated from the speaker for 24/96 files with one big
> drawback though -- the sampling frequency is locked at 48kHz (instead of
> 96kHz).   Accordingly, it appeared that down-sampling somehow happened
> as result of the AIFF to FLAC conversion.  This phenomenon (48kHz locked
> sampling rate) apply to 16/44 and 24/192 files with "AIFF-FLAC" -ffmpeg
> activated.
> 
> In a nut shell, the system only works for 16/44 (CD quality) music
> files.  For 24/96 or 24/192 files,the "incorrect" sampling rate has been
> used due to the involuntary transcoding to FLAC under LMS.  Is this the
> limitation of LMS or SB Touch?  Alternatively, is there anything wrong
> with my setting that might cause this problem?
> 
> Thank you very much for your advice in advance.

There's a bug in the current server with 24bit AIFF playback - if you
can edit the perl code then there's a simple fix on another thread in
this forum.


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