My Mn Cast works just fine with stereo output, but I’d like to switch over to Optical SPDIF.
I go into the web interface, and in the Audio tab I change from “I2SDAC” to “SPDIF” and reboot.
The Mn Cast starts up. I hit the play button in my LMS control page for the player. The red LED glows. But nothing comes through on my A/V receiver. I’ve got another Optical SPDIF device, and confirmed that the cabling and the Optical input of my receiver are working. I see red light coming out of the cable I’ve got plugged into the Mn Cast.
I see that others with a working implementation see “SP/DIF” in their ESP32 web interface
after they switch over. I don’t.
I’ve updated to the most recent version of firmware, I2S-4MFlash.16.2.1306.master-v4.
I’ve confirmed that the SPDIF options are bck 5, ws 25, do 4 as per a properly loaded NVS Config.
What more can I try?
If you have the red light it should work
“I see that others with a working implementation see “SP/DIF” in their ESP32 web interface
after they switch over. I don’t.”
can you send me a screenshot of what you have?
I just played a track with stereo output just fine.
I paused the playback.
I went into the web interface, and set SPDIF, and hit “Apply”
It said it was rebooting.
It came back up.
I resumed playback.
The LED is now lit.
LMS thinks the track is playing.
No sound is coming through.
Notice from this screen shot, that SPDIF is set, but there’s no icon in the upper right saying there is SPDIF.
Hello @Raspiaudio ,
Have you had a chance to ponder why I don’t see the SPDIF Icon?
Or perhaps some other test I might run to try and get the optical connection working?
Reactivating this thread…
I went back to trying to figure out why SPDIF didn’t work for me and I have a root cause:
The LED is not aligned with the connector.
Fiddling with a piece of reflective mylar, I was able to direct more of the LED into the connector and got working SPDIF output.
Unfortunately, I haven’t figured out how to create a permanent solution to this problem.
Have others tried SPDIF and had successes or failures?
Hi on the unit I have here + an optical to audio converter is is working fine and it is quite permissive as the jach doesn’t have to be fully inserted to get audio.
-Try with an different optical cable, try with different optical decoder
Hack: open the case and stick a piece on “invisble” tape (the one a matt non glossy texture) at the end of the jack.
Thanks for the speedy reply!
I spent some time with some plastic pieces trying to refocus the LED, but that didn’t work.
By the time your suggestion came in about the plastic tape came in, I had managed a fix: I had a piece of reflective, rigid confetti that I was able to position usefully, and then glue into place.
Here’s a picture of what worked for me:
this is quite creative well done!
Another 2:43 an idea to increase the light receiving area :
