Sound cuts off every few seconds on aux in/ optical out

[Infinite-tie]

Hi,
I have my WiiM connected to my DAC via optical.
Music on airplay is working fine.

I have line out of my TT connected to the aux-in of WiiM.

On this input, music cuts off every 1-2 seconds and skips for 1 second or so. The DAC’s input signal light also blinks when music turns off.

What could be wrong here and how to fix?

Thanks

 

[onlyoneme]

What about audio from music services? What is the max resolution set on spdif in WiiM?

 

[Infinite-tie]

Music from Apple Music on phone over Wi-Fi airplay works perfectly.
Output is set to SPDIF.

Resolution is 44.1/16

 

[Infinite-tie]

Music from Apple Music on phone over Wi-Fi airplay works perfectly.
Output is set to SPDIF.

Resolution is 44.1/16

To double check, I plugged the aux out of wiim to amp directly, changed output to aux out and now input from aux in is playing flawless.

The challenge is when I am using optical out, the audio comes and goes. My Dax’s signal light too blinks when signal comes back.

I think some challenge in wiim when converting analog to digital and sending via optical out.

 

[Mr Ee]

Is your optical cable plugged in properly / fully / securely at both ends?
Although... you did say Apple Music works via optical ok....
What about TT direct to amp? Isn't a TT output normally very low strength, hence specific mm or mc TT inputs on amps?
Do you have another 3.5mm source you can use to test, such as a real phone with a real headphone output

 

[Infinite-tie]

I can try with my laptop. Thanks for the suggestion
iPhone doesn’t have a headphone out.
TT has built in phono preamp so sends signal at line level. Otherwise I wouldn’t be hearing anything at all.
Yes the airplay music works flawless.

 

[Infinite-tie]

I connected the headphone out of the laptop to WiiM aux input.
Exactly the same problem. Music plays for like 2 seconds and then it goes off.
I triple checked by inserting headphones to laptop directly and music plays fine.

The frequency of sound cutting off and coming back is pretty consistent. Isn’t a loose optical cable case.

 

[Infinite-tie]

I airplayed from the same laptop and sound comes perfect.

There is some challenge with the aux in - optical output.

 

[Infinite-tie]

I reached out to the support. Seems they are working on fixing the issue.

 

[Infinite-tie]

I can try with my laptop. Thanks for the suggestion
iPhone doesn’t have a headphone out.
TT has built in phono preamp so sends signal at line level. Otherwise I wouldn’t be hearing anything at all.
Yes the airplay music works flawless.

 

[Infinite-tie]

Something got fixed. Not sure if there was a new firmware that got applied last night.
Also added a Schiit sys as preamp, and trying out Modi+ dac. The input from TT is playing flawless now. And changed the resolution as well as Modi+ doesn’t seem to do 192khz on optical.

Will do more tests to figure out what changed