Issue using ARC on Android with A&K Kann as external DAC

[Scott_Seiler]

Hello! I don’t know how to move this post into support so I’m just pasting it here. Thanks for your help!

ARC bit-perfect in android phone (finally!)

Love the concept, having some issues with the implementation. I have a Samsung S21 running through a Kann Alpha. When connected I have to tell the Samsung I want the connected device to have control in order to get Arc to see it as a DAC. [Screenshot_20221203-191736_Settings] I then have to turn off the DISK function on the Alpha so it lets the phone take control and doesn’t just try to read files from Samsung. [20221203_191756] [20221203_191635] Once thata complete I get Arc asking me to…

[Scott_Seiler]

Hello, team! Would you please provide me some suggestions on how to fix this issue?

Thanks!

[Scott_Seiler]

Hello @brian I see you’ve replied quite a bit in the Android ARC thread but I’ve not been able to get help with this issue. Will you please provide suggestions on how to fix it?

Thanks!

[Wes]

Hi @Scott_Seiler,

I apologize for the delay in getting you an official response from Roon support.

Your issue isn’t one of those we might have a canned response for. I’m going to bring this up with our ARC team and will get back to you with some ideas.

Thanks,
Wes

[Scott_Seiler]

Thanks! I’ll standby. I appreciate the support.

[Wes]

Hi @Scott_Seiler,

I haven’t forgotten about you and wanted you to know. I’m still awaiting a review of your case with our team.

Thanks,
Wes

[Scott_Seiler]

Thank you!

[connor]

Hi @Scott_Seiler,

We’ve continued to make incremental improvements to ARC’s performance with the Android system playback engine in general, as well as with USB bit-perfect playback for Android. I’m curious if the symptoms you encounter with the Kann Alpha are recurring on the most recent build (in particular, the fuzzy sound or digital distortion when playing DSD).

If so, we’ll want to take a few steps to finally nail down the incongruity between the two devices and fix whatever sample rate mismatch might be occurring.

1. Do you have an EQ enabled on the Kann Alpha? What about “DAC Filters”? Disable these, if so.

2. Are you able to supply the QA team with one of the following files?

• A short recording of the distortion you hear when playing back DSD files in this configuration
• An example track that causes these symptoms
• A timestamp of when you last encountered the problem on this DAC.

You can use this uploader to send us any files at your convenience. Thank you!