Bluetooth Stutter

[Shozzer]

Morning All,

New WiiM Pro owner as of last week. Works flawlessly over Wi-Fi when connected to my Denon amplifier via Line Out and also Optical Out (Coax is a no go as my current connectors don't fit onto the WiiM!) but when connecting to Bluetooth devices - Dali Katch, Sony Headphones and a cheap headband (for use when going to sleep - not a good look!) the sound stutters badly. Have other users had similar problems and were they able to overcome them? The experience varies. Sometimes when the stutter starts, pausing a few seconds allows the sound to buffer and then normal playback is possible. Sometimes it then becomes necessary to repeat the process if the stutter starts again.

The problem occurs whether streaming from LMS or Qobuz via WiiM and happens irrespective of Wi-Fi or Ethernet connection. A device reset did partly improve the situation but essentially Bluetooth is unusable which is a shame as that was the main reason for getting the WiiM. I have submitted a ticket to WiiM but wondered if others had similar experiences they could share.

Thanks for reading.

Steve

 

[Shozzer]

Sadly, this is generally my experience - I get stutter on all BT headphones linked to the WiiM Pro. There are times when I can get a run of 7-8 minutes with no issue playback and then all of a sudden the stuttering kicks in. Once it starts it won't stop. Pausing and waiting a few seconds can reset things but soon after the stuttering starts again.

Steve

Thank you for your suggestion,but any combination of these settings doesn't improve or even change a bit in my case.

 

[Wiimer]

If you have raised a ticket for this, please let me know and I’ll escalate it to WiiM. Again, good troubleshooting

Thank you.
A little time has passed, but I have submitted a ticket. 493048

Why does my butt itch when you compliment me? Is my tail trembling?

By the way, the @Shozzer problem feels like an initial defect of the WiiM.

Also, I feel that the distortion that @onix heard is different from mine. He likened it to an FM radio, but what I heard was a noise that accompanies the high frequencies.

Also, based on the testimonials that there were no problems with older devices, there may be another cause. For example, it may only be a problem with devices with high-resolution codecs such as noise cancellation or LDAC. (I've heard similar distortion in LDAC before.)

Although extensive research may be required,
I hope the WiiM team can identify the cause.

 

[onix]

Hi, after you go thru trying these steps, could you also submit a ticket to Wiim and let me know the number and I’ll bring this thread to their attention. Thanks

I am waiting for any reply for the ticket #490513 for this issue, thanks!

 

[Shozzer]

I think that the issue (as it affects me), is greater than high resolution codecs. It affects both low end and high end BT devices. The most stable is the Dali Katch which only stutters at the beginning of playback and after a pause it rights itself and plays flawlessly thereafter. Stopping and starting play can cause the issue to resurface.

I am also waiting on tickets raised for a response.

Steve

Thank you.
A little time has passed, but I have submitted a ticket. 493048

Why does my butt itch when you compliment me? Is my tail trembling?

By the way, the @Shozzer problem feels like an initial defect of the WiiM.

Also, I feel that the distortion that @onix heard is different from mine. He likened it to an FM radio, but what I heard was a noise that accompanies the high frequencies.

Also, based on the testimonials that there were no problems with older devices, there may be another cause. For example, it may only be a problem with devices with high-resolution codecs such as noise cancellation or LDAC. (I've heard similar distortion in LDAC before.)

Although extensive research may be required,
I hope the WiiM team can identify the cause.

 

[onix]

Latest firmware arrived (Build:2023/11/21), but it seems to be same, unfortunately.

 

[Shozzer]

Me too, sadly. My WiiM is unusable with BT headphones.

Steve

 

[Shozzer]

Latest firmware arrived (Build:2023/11/21), but it seems to be same, unfortunately.

Just wondering, @onix whether you have seen any improvements with your BT issues? Despite the latest FW update I am still experiencing problems.

 

[onix]

Just wondering, @onix whether you have seen any improvements with your BT issues? Despite the latest FW update I am still experiencing problems.

No improvements with latest FW, unfortunately. Just wondering TEAM works on my case #490513. ( Panasonic did swiftly,though. )

 

[Tux]

Same problem (494404), no answer

 

[Shozzer]

Same problem (494404), no answer

I'm still waiting for a response on this issue. No change seen after the latest update - still experiencing severe stutter.

Steve

 

[onix]

Latest FW.(build 2023.Dec.28) doesn't fix the issue.

 

[Shozzer]

Yes, I can confirm this. My tickets have been upgraded though and it does look like WiiM are working on the issue.

Steve

Latest FW.(build 2023.Dec.28) doesn't fix the issue.

 

[Tacit]

I anxiously wait for the problem resolution, I have the same problem with my Sony WH-1000MX4 but not with their IEM version

Sony WF-1000XM4​

 

[Tacit]

I tried today to turn off 2.4Ghz and leave only 5Ghz, situation improved if not gone totally.

 

[Tacit]

It turned out I still had a repeater with 2.4Ghz, once I cover it with foil problem was gone.

 

[Tacit]

Therefore problem is interference from 2.4Ghz band, perhaps it will help WiiM to find a way around.

 

[Brantome]

Bluetooth operates on the 2.4gHz band too so perhaps your router’s 2.4hHz channel is interfering with it although arguably if properly configured, they shouldn’t - see https://www.codejourney.net/wifi-and-bluetooth-interference-diagnosing-and-fixing/

 

[Tacit]

Thank you very much for the good article! Only question left, why this interference does not happen with other devices except WiiM? I hope to recieve an answer from WiiM...

 

[jfbuk]

Thank you very much for the good article! Only question left, why this interference does not happen with other devices except WiiM? I hope to recieve an answer from WiiM...

Are your other devices also connected to wi-fi when you connect to them via Bluetooth ?

 

[Tacit]

Yes, counted at least three of them, one more really had enterference but it does not relate to music - it was bluetooth mouse.