Sample rate conversion wireless

Roon Software Discussion
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Hi - apologies if this is a dumb question. I am not the most technical person. I have a simple setup. I have a Roon Nucleus ethernet connected to my router. I have Tidal Premium so I get high res and/or MQA. I have Devialet speakers, which are meant to support 96 kHz.

My setup on Roon is "Max Sample Rate (PCM) up to 96 kHz yet the sample rate conversion always converts to 48 kHz. Is this because I am streaming wirelessly and it is not supported over the air?

Because I also have a Chord Mojo 2 and when I connect that directly (wired) to my laptop and listen through my headphones, I get 96 kHZ or better.

Thanks,
Nick

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Please post the signal path when this occurs.

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The conversion to 48 kHz is occurring at the speakers.
Anything after the Roon icon is occurring in the device.
This isn’t uncommon with active speakers.
It’s not because you’re using wireless but rather this his how Devialet have set up their processing.

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Hi @Nick_Rossman,

There are two downsampling operations in the signal path:

  1. Roon is downsampling to 96K (as the device can accept update 96K)
  2. Devialet is downsampling to 48K (which is a internal limit with Devialet)

It’s often hidden by manufactures, but in this case it is exposed by RAAT and shows in the signal path.

If you only want one conversion, you could the adjust Device Setup in Roon down to 48K Max.

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This is because DSP on Develiats is processed in 48khz as you can see this is done after RAAT and is in the device not via Roon. It’s just reporting it back to you. All as it should be.

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The sample rate conversion to 48 kHz is occurring after the Roon logo, which means that the Devialet is doing this.

There appears to be quite a lot of discussion about this in the forum.

You may want to set Roon to perform the sample rate conversion to 48 kHz.

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Hi Martin, Thanks for the speedy reply. To be honest, I regret buying those speakers…
Cheers,
Nick

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Why? If they sounded good, good enough to buy them, then knowing the fact that they don’t use more than 48kHz sampling frequency doesn’t change their sound a bit. Many digital active speakers seem to be limited to this max. frequency for DSP. Most recent product I’m aware of this fact is the IN-UNF and haven’t come across of any negative review because of the internally used sampling frequency.

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