AIR1 v AIR2 v Spark

[ThierryNK]

As far as I can remember, on Macs the white noise problem first appeared when Mavericks and AIR 2.1.3 (and I think FW 7.1??) first began to be used in combination.  I believe that AIR was stable on previous versions of OS X and think its unlikely that white noise is a networking problem - its more likely to be a problem with how AIR works in combination with the later versions of OS X (and various versions of Windows).

Jean-Marie posted here back in June that Devialet use Qt for AIR and that there is therefore likely to be significant common code in the OS X and Windows implementations which may well explain why white noise appears on both O/S.

I regularly use AIR wi-fi to stream 24/96 files with absolutely no issues and can stream 24/192 files again with no issues.   I use a cheap Netgear wi-fi modem/router and Cat 6 cable and it all works perfectly.  No doubt it could be improved but I don't think there is too much wrong with Devialet's networking approach 

Well, a port scan that crashes an ethernet interface IS something wrong. 

Tcp/ip protocol that goes through ethernet cables and all around the world on internet is a bullet proof network protocol, with data check, receipts, and requests to send again data if not received. 

When there are side audio effects on an ethernet transmission, there are very few reasons:
- EMI going through the cable
- sending "bad" data, so responsibility of AIR software on the computer side  (but no issue on USB for same kind of data)
- not recognizing errors and/or not asking them again on incorrect reception inside Devialet. 

If there was a big bug in AIR on computer side, it should affect 100% of users
Same for reception. 

There is a tiny possibility that some hardware/software configuration lead to a random effect of a bug. 

I does not mean that it is true, but with experiments that have been made, the current most probable reason for the issue is EMI, as:
- already solved by optical bridge
- every computer, software configuration, energy saving option, processor, memory, chipset, every ethernet switch, etc have a different EMI signature.

Again,  "most probable" does not mean 100% true. 

Regards