Networking DSD MacMini With Streamer. AirLens

I²S is the output… DoP is not passed through to the DAC via I²S as this is a direct bit for bit connection to the DAC circuitry and output… it is processed on the AirLens and then the raw native 1-bit PDM signal is delivered to the MKII via I²S… I do know the MKII up-samples all PCM and DSD and delivers a 1-bit PDM signal to the output circuitry…

The AirLens is not a proprietary compliment to the PS Audio DACs, it can be applied to other DACs as well…

I’m sorry but you lost me.
It plays both, and sounds good.
I’m just having trouble when tracks are mixed together.

Well it could be that the AirLens is fumbling the DSD256 DoP signal… and this is affecting the streaming operations in Audirvana…

I appreciate your efforts.

You see in the screen-shot that the MKII supports 705.6kHz which is the PCM DoP carrier sample-rate for DSD256 (11.2MHz)… The AirLens does not support 705.6kHz signals.

I’m not sure of your point right now.
All is working the airlines is sending to the DAC.

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That is obvious, but what signal is being sent to the MKII? It certainly is not a DoP signal from the I²S output of the AirLens… and if the AirLens is fumbling the DSD256 DoP signal this could be causing your playback anomaly in Audirvana…

What happens when you set-up Audirvana for DSD128 via DoP 1.1?
:notes: :eye: :headphones: :eye: :notes:

There is no DOP

When I decrease to 128 it actually downsamples to24/176.4, but no option at anytime for DoP.
Here is the screen shot.

So the debug report tells you something… Does this reflect the specifications of AirLens?.. it does not …There is something wrong here… Is the firmware updated? You see that ā€œDSD Capabilityā€ is raw DSD (msb) in the ā€œActive method: UPnPā€ configuration.

The reason you are not seeing ā€œNative DSD streaming methodā€ is because Audirvana is not seeing the AirLens as supporting DoP…

You have set the Maximum PCM Rate to 192kHz…The DoP PCM carrier sample-rate for DSD64 (2.8MHz) is 176.4kHz, the DoP PCM carrier sample-rate for DSD128 (5.6MHz) is 352.8kHz… Audirvana is converting all DSD to PCM for playback because it does not see the AirLens as DoP capable… Make sure the AirLens is set as the output device in Audio MIDI Setup and set to the maximum sample-rate and bit-depth of 32 bit/352.8kHz.

Why Audirvana is not seeing AirLens as DoP capable and limited to PCM 192kHz is something to ask PS Audio and maybe the Audirvana team can add further insight.

:notes: :eye: :headphones: :eye: :notes:

My DAC is displaying DSD though.

Yes because the MKII converts everything PCM to DSD

It will display all other formats as well.

Also, please look at the 2 specs.
I take it it’s native, no need for DoP.

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You mean like this?

Yes exactly.
There is someone on the PS forum talking about using coax to play DSD 128, No DoP.
DoP

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Look Ma, no usb socket :open_mouth:

@Oldengear does not compute :upside_down_face:

Still wants to skip after a second DSD 256 Files. It plays sometimes. PCM then DSD 256 in a row.
Not always. DSD 64, DSD 128, won’t skip.

Also If I am streaming a track, and just hit the next track arrow, it will go to the DSD local 256 and play, no problem.

I’d wait to speak directly with @Antoine I have personally had some issues as well with the UPNP streaming with various equipment.

Have you experimented with these settings as @Antoine suggested? These can make a big difference.