Dual AES to USB DDC?

[yamamoto2002]

I think you'd like to connect USB DDC to PC, and USB DDC dual AES/EBU out to Aqua LinQ dual AES/EBU in, and send 176.4kHz 24bit 4ch DoP to play DSD128 (5.6MHz 1bit 2ch) sound. Is it correct?

 

I have Lynx Aurora 8, which can output up to 4 AES/EBU (176.4kHz 24bit 2ch/4ch/6ch/8ch) with "snake cable" (picture attached).

Searching "AES/EBU DB25" to find similar other products

[yamamoto2002]

I think it is easier to find DAC that accept dual AES/EBU DoP DSD128 input. There are several choices in the market.

 

If you'd like to convert Dual AES 176.4kHz 4ch 24bit DoP DSD128 (5.6MHz 1bit 2ch) to USB Audio out (ASIO DSD or DoP 4ch 176.4kHz 24bit) on realtime no matter what, it is necessary to develop PC-based protocol conversion software by yourself, there is no such software in the world, last I checked. There is technical difficulty of clocking for such protocol conversions: AES/EBU does not have flow control and carries the clock signal from source device, and typical USB DSD playback devices work with its own free running clock on the device (Asynchronous isochronous USB Audio), therefore in order to avoid periodical pop noise by FIFO overruns/underruns caused by drift of two clocks, software based DSD asynchronous sample rate converter is needed, and I'm not sure if there is no such thing exists. Even when it is properly implemented, it modifies bit patterns (not bit-perfect playback), and some audiophiles consider it as compromised and do not like it.

[yamamoto2002]

From USB Specification 2.0, page 79. RA means sample rate converter