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Article: The Sonos Port Isn't Bit Perfect

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I would guess that 90% of the installed base of Connect and Port devices are only connected using the analog inputs and/or analog outputs. Another way you may want to test the Port would be to factory reset it and added it to your S1 system and run the tests again. It would be interesting to see if the Port behaves differently on the S1 system.

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How large was the sound difference? 

Peach Audio Iso Transformer, Linn Akurate DSM, McIntosh MA2275 

Paradigm 30th Anniversary Tributes, SVS SB13 Ultra x2, Dynaudio BM5A MKII

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On 3/12/2021 at 10:19 AM, The Computer Audiophile said:



HDCDs played bit perfectly by any digital output into an HDCD DAC, will light up the HDCD indicator. It's the same for DTS signals. If the component can pass bit perfect signals, the DTS component will see it and indicate it's DTS.

In fact, I have a bunch of HDCDs that I ripped originally to 16/44 as if it were standard CD (I had no means of decoding HDCD). You can now run ffmpeg to decode those files into 24/44 files. 


Instructions for mac:


Files must be FLAC, not WAV or AIFF. <Album> is the directory where you have your original files. It assumes the ffmpeg binary is in the directory above and assumes that directory also includes an outfiles directory. 


At the command prompt do:

% cd <Album>  

% for f in *.flac; do ../ffmpeg -i “$f” -af hdcd “../outfiles/$f"; done


This will transcode all HDCD 16/44 files into 24/44 files. The output will tell you if the files were HDCD encoded or not. Metadata is preserved.

mini+Roon > dCS Rossini DAC + Rossini Master Clock >

Audio Note Kondo Ongaku > Avantgarde Duo Mezzo G2

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