USB output-DAC stanby- DSD DoP vs Nativ DSD.

[stemplar007]

2 questions:
1, To an external DAC (e.g. Topping D70S) via coax output, if the Wiim Ultra goes to standby, it also puts the DAC to standby. (this is fine)
But if there is a USB-DAC connection, even if the Ultra goes to standby, the DAC stays on.

2. Is it planned that in the case of a USB - DAC connection, DSD can be processed natively on the DAC, not just DoP.
Thanks if a major contributor responds.

 

[slartibartfast]

2 questions:
1, To an external DAC (e.g. Topping D70S) via coax output, if the Wiim Ultra goes to standby, it also puts the DAC to standby. (this is fine)
But if there is a USB-DAC connection, even if the Ultra goes to standby, the DAC stays on.

2. Is it planned that in the case of a USB - DAC connection, DSD can be processed natively on the DAC, not just DoP.
Thanks if a major contributor responds.

The way it stands at the moment I don't think even DoP is supported, just transcoding to PCM.

 

[Mr Ee]

If there is a USB-DAC connection, even if the Ultra goes to standby, the DAC stays on.

Wouldn't that depend on the dac?
My usb connected dac turns itself off after no signal for a while, even if the ultra is set to sleep Never.

 

[dtc]

The way it stands at the moment I don't think even DoP is supported, just transcoding to PCM.

I believe that it will pass a DoP signal via usb, although that is a somewhat unusual case. People do not usually have DSD files in DoP format. And, it is limited to 2.822 KHz sample rate since any higher rates require that DoP be sent at greater than 192 KHz, the current usb limit.

But, yes, otherwise it converts to PCM.

Conversion of DSD files to DoP format for output is relatively straightforward but requires PCM sample rates greater that 192 KHz for any sample rates other than 2.822 KHz. It would be pretty easy for Wiim to do DSD64 via DoP.

I think the issue with Native DSD over usb is that it is not transmitted at the original sample rate but uses a very special packing format (32 bit/88 Khz). The Wiim documentation says that the usb only supports 24 bit. NOTE : This packing is different that the packing used in DoP.

 

[stemplar007]

Wouldn't that depend on the dac?
My usb connected dac turns itself off after no signal for a while, even if the ultra is set to sleep Never.

Thank you. I'll take a closer look at how to use the DAC, although it also goes into standby for me with Coax, I don't think this should be set per output..

 

[stemplar007]

I believe that it will pass a DoP signal via usb, although that is a somewhat unusual case. People do not usually have DSD files in DoP format. And, it is limited to 2.822 KHz sample rate since any higher rates require that DoP be sent at greater than 192 KHz, the current usb limit.

But, yes, otherwise it converts to PCM.

Conversion of DSD files to DoP format for output is relatively straightforward but requires PCM sample rates greater that 192 KHz for any sample rates other than 2.822 KHz. It would be pretty easy for Wiim to do DSD64 via DoP.

I think the issue with Native DSD over usb is that it is not transmitted at the original sample rate but uses a very special packing format (32 bit/88 Khz). The Wiim documentation says that the usb only supports 24 bit. NOTE : This packing is different that the packing used in DoP.

I understand, thank you.

 

[JaccoW]

I believe that it will pass a DoP signal via usb, although that is a somewhat unusual case. People do not usually have DSD files in DoP format. And, it is limited to 2.822 KHz sample rate since any higher rates require that DoP be sent at greater than 192 KHz, the current usb limit.

But, yes, otherwise it converts to PCM.

The Topping DACs can generally do DSD over PCM (DoP) over USB, Coax and Toslink. You just need a device that can send it like that and it is limited to DSD64. USB often supports up to DSD512 but then we're talking about such insane file sizes that I doubt the usefulness.