Above 96kHz there will be silence.

[Wiimer]

Today, suddenly it happened.

When I'm playing Amazon music on WiiM, certain songs are silenced. Apparently, only 24bit/96KHz and 192kHz tracks cannot be played. But WHA is playing and there is no sound.

I did an audio test for COAX. Yes, there is no sound at 96KHz and 192kHz.

I disconnected the coaxial cable from the Wiim and reinserted it. I tested it again and it sounded fine.

I don't know the cause of this issue, but if you encounter the same symptoms, try the test audio.

 

[Maurizio]

Today, suddenly it happened.

When I'm playing Amazon music on WiiM, certain songs are silenced. Apparently, only 24bit/96KHz and 192kHz tracks cannot be played. But WHA is playing and there is no sound.

I did an audio test for COAX. Yes, there is no sound at 96KHz and 192kHz.

I disconnected the coaxial cable from the Wiim and reinserted it. I tested it again and it sounded fine.

I don't know the cause of this issue, but if you encounter the same symptoms, try the test audio.

May be that before the Coaxial was not properly inserted?

 

[merifon]

User Onlyoneme, did some waveform tests for coax signal issued by wiim pro. The waves shape was not at state of art above 96KHz, maybe caused by some capacitive losses due to circuitry design. A reset to coax cable connectors, could lead to a cleaner connection that can make the little difference from "no go" to "go".

 

[Wiimer]

@Achim1811
@Maurizio
@merifon

Hi, thank you everyone

My problem has been solved, but I still don't know the cause.

The coaxial is inserted deep and I haven't touched it. There was no trouble until yesterday.

There is only one thing that comes to mind. I played Mini and Pro in a multiroom last night. At this time, I pressed the auto-sync button. which may have triggered the problem. (But I couldn't reproduce it)

I've seen @onlyoneme's tests, but they were difficult for me

 

[Wiimer]

By the way, After switching the WHA output to coaxial, "SPDIF Output Resolution" plays back the test audio and there is sound.
Why?

 

[merifon]

The coaxial is inserted deep and I haven't touched it. There was no trouble until yesterday.

faults comes suddenly...
If the contact point of any connection, suffers by oxidation, grease or any kind of dirt and is used with a signal at the weakest limit of safe operation, any kind of variation in temperature , humidity, mechanical stress could lead to a failure, even if nobody touched anything. Moving connectors out and in is often the simplest way to restablish minumum contact requirements

 

[Wiimer]

- Are different resolutions in your playlists/albums?

Thank you for your continued kindness.

Yes, the playlist contains different resolutions. Only the 96KHz and 192kHz tracks in it were played in silence.

- Is it possible that the switch HD/UHD in the WHA under Alexa settings can play a role?

The UHD was switched on.

- There is also a chose in the AMHD app which "quality" you want...maybe this can cause that?

No. Native app quality settings don't matter. That setting only applies to playback devices (e.g. Android phones).

 

[Wiimer]

faults comes suddenly...
If the contact point of any connection, suffers by oxidation, grease or any kind of dirt and is used with a signal at the weakest limit of safe operation, any kind of variation in temperature , humidity, mechanical stress could lead to a failure, even if nobody touched anything. Moving connectors out and in is often the simplest way to restablish minumum contact requirements

Yes, I agree with you.

However, it feels strange that only 96KHz and 192kHz are completely silent. I didn't even hear any noise.

 

[merifon]

Yes, I agree with you.

However, it feels strange that only 96KHz and 192kHz are completely silent. I didn't even hear any noise.

of course, it could have been anything but for sure and generally speaking, 96 and 192 are the most difficult to handle. 48KHz are easier to transfer, even a so so connection can handle them without pop's or other noises. Once highest freq signals gone under the threshold, nothing can helps

 

[Wiimer]

of course, it could have been anything but for sure and generally speaking, 96 and 192 are the most difficult to handle. 48KHz are easier to transfer, even a so so connection can handle them without pop's or other noises. Once highest freq signals gone under the threshold, nothing can helps

I understand. Thanks for letting me know.
I don't know much about audio.

If the same problem occurs again, I try changing the coaxial cable.

 

[iconoclast]

[unrelated issue]
For me, this issue starts at > 48 kHz w/ S/PDIF input. I have been troubleshooting it for a week now (yes, I added feedback via the app), but no matter what S/PDIF source I use (Topping D10s or RME Fireface UFX), I just can't get 96 kHz to work. I've tried both cables included with the Pro and the Mini, and a few others, and they can do 192 kHz between my other devices.

 

[Wiimer]

For me, this issue starts at > 48 kHz w/ S/PDIF input. I have been troubleshooting it for a week now (yes, I added feedback via the app), but no matter what S/PDIF source I use (Topping D10s or RME Fireface UFX), I just can't get 96 kHz to work. I've tried both cables included with the Pro and the Mini, and a few others, and they can do 192 kHz between my other devices.

Don't see 192kHz on the screen for "SPDIF Output Resolution"?

 

[iconoclast]

Don't see 192kHz on the screen for "SPDIF Output Resolution"?

I removed that part of my post because it was incorrect. I was blind and missed the 2nd row.
The other issue is still a thing though, but when doing more testing, it's probably unrelated to the original issue here, since my entire device seems soft-locked into 48 kHz (the output signal is 48 kHz even when playing 44.1 kHz content).

 

[Wiimer]

Sorry, I made a mistake in input and output. I've never used the WiiM's SPDIF input, so I don't know.

(?) > D10s > (SPDIF) > Wiim > (?)

What kind of route is output?

You may get appropriate advice from others.

 

[onlyoneme]

I disconnected the coaxial cable from the Wiim and reinserted it. I tested it again and it sounded fine.

That's all what you did and it helped?
Maybe some static charges or something similar which was distorting the output signal above the acceptable threshold and preventing the higher frequencies ( = higher bandwidth required, more strict timing etc.) to work properly. WiiM's output is not isolated.

 

[Wiimer]

That's all what you did and it helped?
Maybe some static charges or something similar which was distorting the output signal above the acceptable threshold and preventing the higher frequencies ( = higher bandwidth required, more strict timing etc.) to work properly. WiiM's output is not isolated.

Hi, @onlyoneme

Yes, It was solved by disconnecting the coaxial cable once. I have been able to play without any problems for these two days.

If you know of any good ways to reduce static electricity, please let me know. Can I turn off static electricity by wrapping an aluminum sheet around a coaxial cable?


Thanks.

 

[onlyoneme]

I don't think so. Discharging can be probably made with a correct grounding but there is also a ground loop risk involved. I have no serious background in electronics therefore no specific advice.
I just prefer to use toslink whenever possible to avoid electrical issues.

 

[onlyoneme]

So it was my 1K answer in the long way of being motivated to make things as difficult as possible, in the name of Amir. Nice.

 

[Wiimer]

I use both Toslink and Coax so I don't seem to be able to escape that problem.
However, if I solve the problem just by unplugging the cable, there is no problem.

Anyway, thank you.

 

[Wiimer]

I need to buy one more WIIM pro for optical.