• Registered: 2018-12-21
  • Posts: 2

Topic: RME ADI-2 DAC Bit-perfect test files showing wrong bit depth

Using an  RME ADI-2 DAC (firmware V.24).
When playing the RME bit perfect test files through Roon I am getting an odd behavior.
Regardless of the sample rate the results on the ADI-2 DAC show ‘Bit test 24 bit passed’ with the 16 bit files, ‘Bit test 32 bit passed’ with the 24 bit file and nothing with the 32 bit file. Same results for 44.1, 96k and 192k sample rates.

If anyone using Roon can check and confirm similar behavior or explain this I would be interested. Roon is indicating it is playing bit-perfect

This is when playing via USB directly from Roon ROCK or from Pi3b+ running Roonbridge.

Not sure if this is a roon issue or if it is the latest (V.24) firmware. All the files showed bit perfect last time I checked, but that was older firmware from LMS to a picoreplayer USB to the RMI.

2 Reply by MC

  • MC
  • MC
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  • From: Germany/Thailand
  • Registered: 2007-04-06
  • Posts: 25,586

Re: RME ADI-2 DAC Bit-perfect test files showing wrong bit depth

Old news, fixed already in next firmware. See thread of last firmware.

Regards
Matthias Carstens
RME

MC's Website

  • Registered: 2018-12-21
  • Posts: 2

Re: RME ADI-2 DAC Bit-perfect test files showing wrong bit depth

Thanks Matthias.

I see now the latest updates in the firmware thread.

4 Reply by t.maneclipse (edited by t.maneclipse 2019-08-25 11:18:21)

  • Registered: 2017-06-05
  • Posts: 10

Re: RME ADI-2 DAC Bit-perfect test files showing wrong bit depth

If I run the bit Test with 32bit files, the display shows: "Bit Test 24 Bit passed"

I have SW Version 30 on my device, newest one. Notebook is plugged via USB. I use Foobar with the ASIO Madiface driver.

5 Reply by MC

  • MC
  • MC
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  • From: Germany/Thailand
  • Registered: 2007-04-06
  • Posts: 25,586

Re: RME ADI-2 DAC Bit-perfect test files showing wrong bit depth

Then Foobar can't transmit 32 bit perfect. Not surprising.

Regards
Matthias Carstens
RME

MC's Website