Where do I find the DSP engine settings on Roon?

[nick_sarnadas]

Hi all, hoping you could help…

Where do I find the dsp engine settings on roon?
I need to try and force roon to output 176.4 to 88.2.

The reason I need to force it to 88.2 is I’m currently using a Wiim pro plus as my Roon endpoint, and when I play to the Wiim directly and output from the Wiim via rca line output all the following files play without an issue

Spotify: 320kbps, 16 bits, 44.1khz - plays fine

Roon:
44.1khz, 16 bits - gogo penguin plays fine
176.4khz, 24 bits - tsuyoshi Yamamoto- plays fine - source dsd64
44.1khz, 24bits - manu katche plays fine
88.2khz, 24bits - manu katche plays fine
96khz, 24 bits - manu katche plays fine

When playing the dsd file, the Wiim downsamples to PCM, but plays nonetheless (music playing out of speakers)

However, when I switch over the output on the Wiim to coaxial so that it can output to my DAC (TeddyPardo TeddyDAC) the DAC doesn’t support 176 even though both roon show the track as playing, as does the Wiim, the DAC shows the file as hires (as the hires light comes on), but no sound comes out

Per the below:
Spotify: 320kbps, 16 bits, 44.1khz - plays fine

Roon:
44.1khz, 16 bits - gogo penguin plays fine

176.4khz, 24 bits - tsuyoshi Yamamoto- shows playing on Roon, shows playing on wiim, no sound playing - source dsd64 - hi res light comes on - no sound playing

44.1khz, 24bits - manu katche plays fine
88.2khz, 24bits - manu katche plays fine
96khz, 24 bits - manu katche plays fine

A friend who knows more has said I should try force roon to downsamples 176 down to 88.2
Per this screen he sent me:

But I cannot find these settings at all this is what I see both on laptop and via my iPhone remote app if I tap the speaker in the bottom right

Or if I follow the signal path again I get no option to adjust these “dsp” settings or even see dsp at all

If it helps I have the volume set at max through the wiim (to allow the actual amp to control volume

Any help appreciated

[Geoff_Coupe]

You need to use Roon on a PC, Mac or Tablet to access the full DSP (Muse) functions. Smartphones just show what has been set up, but don’t allow you to add filters or sample rate conversions - there’s not enough screen area to display the setup screens.

[CrystalGipsy (Resisting the flow!)]

There is enough on a phone, just not with Roons bad design decisions of the UI. Other apps have perfectly usable DSP sections on mobile platforms.

[nick_sarnadas]

So these are the settings I get using Roon core on the laptop where roon is based

No Sample rate conversion? or DSP engine option ?

These are the filters I am able to add or enable

[Geoff_Coupe]

It’s in the Sample Rate Conversion screen - choose Custom to get the custom settings…

[nick_sarnadas]

Thanks all, now forced to 88.2 and playing just fine