Optical In issue

01svtL

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Joined
Jul 18, 2024
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17
I can’t seem to get any sound from the optical in. The screen shows it sees the source and is playing it, but no sound. Using a 3.5mm to optical cable, I tried it out of my monitor, with laptop sending sound to the monitor. I tried directly out of my laptop. I tried connecting to my iPhone with an adapter on the end of the cable. Nothing works. Any ideas? I want to be able to play YouTube videos from my laptop (viewing on 35” monitor) while sending sound to my LS50’s.
 
Is the 3.5mm to optical cable the issue?
Do you have a tv with optical out? Does that work with the wiim supplied cable?
Is it possible you have the volume output really low for the optical input (per-source volume control)?

What does this mean, exactly?
"The screen shows it sees the source and is playing it".
How do you know it's playing it?
What does the wiim app show?
 
Are you sure the format is supported (PCM)?
I don’t see a way to specifically put it on PCM. I turned off Spatial Audio and all that. But wouldn’t my iPhone work regardless?
I tried two different optical cables. The sound will play with 3.5mm to RCA on back of WiiM. It appears to just be the optical input.
 
Last edited:
Sorry, I don't understand. There is no coax in on WiiM. Are you sure you are not connecting to the analog RCA input.

Do you use a digital AV adapter for the iPhone? The optical input is digital.
 
Sorry, I don't understand. There is no coax in on WiiM. Are you sure you are not connecting to the analog RCA input.

Do you use a digital AV adapter for the iPhone? The optical input is digital.
Sorry yes, I meant RCA, not coax.

I use the Fiio mini DAC/Lightning adapter thing. It enables the use of 3.5mm headphone plug.
 
The Fiio mini DAC/Lightning adapter converts the digital signal on the lightning port to analog. That is why it work connecting it to the RCA input on WiiM.

The Toslink adapter is for attaching to an optical digital mini Toslink, not a headphone analog signal! That will never work.
 
You may need another adapter like the

IKKO ZERDA DAC Lightning to Jack 3.5mm / mini-Toslink MFI adapter CS43198 32bit 384kHz DSD256​

 
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