Rivo+ HDMI-I²S Native DSD shows DSD64 lock but outputs white noise with Eleven Audio K-DAC

Help and Support
1

hello
Hardware:
Volumio Rivo+ → Eleven Audio K-DAC (HDMI-I²S connection)

Expected behavior:
Native DSD playback over HDMI-I²S.

Actual behavior:
The DAC displays DSD64 lock, but the audio output is full-scale white noise.
This is not distorted music, clicks, or intermittent noise—just constant white noise.

Additional observations:

  • USB connection from Rivo+ to Eleven Audio K-DAC works correctly (DSD playback is normal).
  • The issue occurs only with HDMI-I²S.
  • Playback mode is Native DSD (not DoP) over HDMI-I²S.
  • Rivo+ I²S HDMI mode is set to PS Audio compatible (default preset).
  • Tested with DSD64 (same behavior expected with higher DSD rates).

Pinout reference:
According to the attached official diagram from Eleven Audio, K-DAC follows a PS Audio–style differential I²S/DSD pinout, but polarity and DSD FLAG handling may differ from other PS Audio–compatible implementations.
In the attached pinout diagram, the upper row corresponds to odd-numbered HDMI pins, and the lower row corresponds to even-numbered HDMI pins.

Purpose of this post:
Similar HDMI-I²S connections work correctly on Rivo+ with other DACs using manufacturer-specific I²S presets.
The goal is to share a reproducible hardware-level compatibility issue, not to complain.
I am posting this to understand whether there is a known pinout or polarity mismatch, or if an additional I²S preset may be required on the Rivo+ side.

Any technical insight from users or Volumio developers would be greatly appreciated.

I translated the Japanese using DeepL and posted it.

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2

Please try to use “Volumio” as I2S setting on Rivo+, this will bring the DSD/PCM signal on Pin14, as required by this DAC

3

Thank you for your response.
I am using rivo+ with volumio3.
However, as mentioned above, I am experiencing full white noise when using DSD direct via I2S.
It appears the DSD signal from rivo+'s I2S psaudio settings is outputting from pins 14 and 15.
Additionally, the I2S data+ and data- pins seem to be reversed.
I am unsure of the correct pin assignments for rivo+'s I2S psaudio settings.
I translated the Japanese using DeepL and posted it.

4

Is the volume set to 100%? Anything less will output white noise.

5

the “PSAudio” setting do not provide the PCM/DSD signals, the setting “Volumio” does provide PCM/DSD signal on Pin14, as requested by your DAC.

Even if data+ and data- signals are reversed, you should get sound, the phase of the signal will be inverted but that’s not a big deal.

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Please also check if you have some firmware updates available for your DAC

6

Thank you for your response.
The rivo+ settings do not use a software mixer. The volume is set to 100%.
I translated the Japanese using DeepL and posted it.

7

Thank you for your response.
I’ll try it later.