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WiiM Ultra

staticV3

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sorry...i don t read it....:oops:
(It makes for a very heavy chain where each transmitter receiver can impact..it becomes a bit questionable it seems to me ;-) )
If there was a readily available ARC to USB converter on the market, then I'd have used that. :)
 

MCH

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If there was a readily available ARC to USB converter on the market, then I'd have used that. :)
You could send the tone to your hdmi extractor using for instance a raspberry pi as source, as a sanity check.
 

staticV3

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You could send the tone to your hdmi extractor using for instance a raspberry pi as source, as a sanity check.
Raspberry Pis don't have ARC out last time I checked. This is not regular HDMI.
 

MCH

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Raspberry Pis don't have ARC out last time I checked. This is not regular HDMI.
The test I was suggesting was to see if it is your hdmi extractor that adds all that grass. The RPi would see the extractor as a sound card, no arc involved as far as I know. Don't know if it will tell you any relevant information, but if measured like this you still see the same "degraded" signal, maybe the TV is not guilty.
 

CT Man

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FWIW, I have 24bits out of my LG OLED C2 (that I use as my PC monitor), through toslink.

Not quite perfect signal, but certainly no truncation to 16b either:
View attachment 369403
View attachment 369402View attachment 369404
Thanks for your help on this issue. Let's hope with Ultra's DAC they kept their eye on the ball while adding complexity with ARC and a touchscreen. For concentrated music listening I would use streaming and TOSLINK sources. For me, TV audio is perfectly fine for watching video but it's ARC and TOSLINK implementations seem unreliable across brands and TV for state of the art audio.

I've been looking for a good, simple way to integrate TV audio into my two channel system without compromising my music-first priority. Ultra may be the solution. My current multiple remote control setup is a PIA and too confusing for guest users.
 

CT Man

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yes but for vintage..toslink...

I didn't understand the point..the subject was hdmi arc it seemed to me..

(but in both cases specifying the protocol and the capture device is essential it seems to me)
;-)
at first sight the hdmi arc mode degrades in fact ....for ct-man interrogation...
Let me clarify. From Ultra I'm looking for an equal or better DAC implementation for streaming and TOSLINK audio sources. I'm OK with less than perfect ARC for watching video and I appreciate the convenience that brings to a two channel setup.
 

morillon

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Let me clarify. From Ultra I'm looking for an equal or better DAC implementation for streaming and TOSLINK audio sources. I'm OK with less than perfect ARC for watching video and I appreciate the convenience that brings to a two channel setup.
then there is an essential subject for your subject much more important than this quality story and which seems to pose a problem with old wiims it is latency...
 

staticV3

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The test I was suggesting was to see if it is your hdmi extractor that adds all that grass. The RPi would see the extractor as a sound card
It would not. The extractor only works with HDMI ARC ports.

And other extractors that work with regular HDMI, in turn won't work with ARC ports.

Trust me, if there was a better method I'd have used it.
 

CT Man

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then there is an essential subject for your subject much more important than this quality story and which seems to pose a problem with old wiims it is latency...
I don't understand your reply. With Ultra I seek a transparent DAC implementation for audio-only sources and a good-enough ARC implementation. I primarily use Roon for playing Qobuz and local FLAC files, and I play CDs through TOSLINK. How is latency a problem?
 

morillon

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I don't understand your reply. With Ultra I seek a transparent DAC implementation for audio-only sources and a good-enough ARC implementation. I primarily use Roon for playing Qobuz and local FLAC files, and I play CDs through TOSLINK. How is latency a problem?
sorry I thought you were interested in video via television... if your dac has serious toslink or spdif input processing... it will do the trick, especially for this cost...
no?
 
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MCH

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It would not. The extractor only works with HDMI ARC ports.

And other extractors that work with regular HDMI, in turn won't work with ARC ports.

Trust me, if there was a better method I'd have used it.
I understand that you want to test the HDMI ARC, and the raspberry pi will not give you that. Also, i see now that your extractor does not even have a second HDMI connector, so little hope, but if you use something like this below, you can indeed test the rest of your chain and isolate the effect of ARC (you would connect the rpi to the connector at the other side). No doubting that your result shows what ARC transmission does, but morillon has a point that there are too many steps in your test chain to take any conclusions.

1715702503882.png

 

al2002

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Anyone know if volume control and L-R balance functionality is available on the digital outputs of the Ultra?
 

staticV3

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If only Wiiim had put a few more digital inputs on this it would have been perfect.
You mean multiple inputs of the same type? Like 2x Coax, 2x Optical?

Or more alternative inputs like USB, AES3, I²S etc?
 
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