Sennheiser RS 175 optical sound issue
Rene -
Hello, I recently acquired a Sennheiser RS 175 headset.
I watch movies via the Nvidia Shield box, which is connected via HDMI to the TV.
The headset, on the other hand, is connected via optical to the TV.
Here’s the problem: with the optical connection, I often experience brief cutouts of about 5 milliseconds, enough to ruin the listening experience; in any case, it’s very annoying.
I have no problem with the analog connection, and when watching YouTube directly on the TV, I also don’t have this issue. It really only occurs when I watch a movie on the box. Note that speakers connected in exactly the same way have no problem.
Does anyone have any suggestions?
Thanks in advance.
9 réponses
Hello,
Can you distinguish micro-cuts of 5 milliseconds????
What are the references (brand and model) of the television? There might be, who knows, a setting to fine-tune in its sound menu.
Have you tried moving the transmitter part of your headset? It might be too close to an interfering source.
The frequency range used for wireless headset transmission is 2.4 – 2.48 GHz, which is within the Wifi range of the box.
Very difficult to catch a black cat in a dark room.
Especially when it’s not there...
I have the same headphones and once installed I had this problem. After several searches and forums, I think I have found the solution.
My conclusion is as follows:
- It's not a question of TV settings
- It's not a question of connection
- It's not a question of TV compatibility
The problem comes from interference disrupting the signal.
(Note that only Sennheiser headphones are affected, I have another pair from a different brand that has no issues. Nevertheless, the quality of Sennheiser is undeniable)
Solution:
Make sure your television is not connected to WIFI while the headphone support is close to your router. The router's WIFI interferes with the signal.
The same headphones connected to another TV far from the router have no sound drop-out issues.
I hope I have helped.
Hello,
Thank you for your response.
I have tinkered quite a bit with the settings, both in the NVIDIA control panel and directly on the TV, but apparently, there's been no change.
The cut-off sounds like crackling, but I couldn't tell you more than that.
I set aside the possibility that it might be the Wi-Fi transmission since I don't have this issue with a digital connection or when I play a file directly through the TV. Just to be sure, I will disable the Wi-Fi to see.
As for the TV, it's a LG 65NANO916NA.
Check that the "digital audio output" is set to PCM
It's very hard to catch a black cat in a dark room.
Especially when it's not there...
I made sure everything was set up in PCM, but I didn't notice any major changes.
I’m posting some pictures of the TV and Nvidia Shield settings just in case, but I've tried quite a few things.
I do not see anywhere in your screenshots the configuration of the digital audio output set to PCM; it seems to be on auto.
If that doesn’t change anything, I must admit I’m out of suggestions.
Check that the optical cable is fully inserted into the ports of the television and the Sennheiser base.
Here’s what Sennheiser advises, excerpted from https://www.sennheiser-hearing.com/fr-FR/how-to-guides/
Check if the highlighted section has been properly addressed.
Very difficult to catch a black cat in a dark room.
Especially when it’s not there...
The digital audio output is greyed out, I can't touch it... I'm trying to see why..
I'm testing all of this tonight
Thank you
I set it to PCM just as instructed, but it doesn't change anything at all... I don't know what to do anymore.
I changed the HDMI cable, changed the optical cable, made all the recommended settings, but nothing changes.
Knowing that I already returned the same headset because I thought it was the headset's fault, so the headset is not the issue.
I thought about it, but in analog, the sound quality suffers severely; it’s better to use Bluetooth headphones in that case.
I’ve already tried it without Wi-Fi or Bluetooth, turned everything off, but nothing works.
Thank you for your help; I will probably give feedback.
For all practical purposes... there are HDMI audio extractors that plug into an HDMI connection and allow for sound extraction to an optical output.
Example: https://www.amazon.fr/Extracteur-Musou-Convertisseur-Extractor-Optique/dp/B0716R3KYV
This type of extractor would need to be placed between the HDMI output of the Nvidia Shield box and the HDMI input of the television.
Another example noted to work well with the Nvidia Shield:
https://www.amazon.fr/Extracteur-audio-HDMI-compatible-d%C3%A9sint%C3%A9gration/dp/B07TZRXKYG
The same problem that was resolved. The merchant advised me to set the TV audio to PCM stereo. But it didn't change the problem. While searching online, I indeed found that the Wi-Fi router could be the source of the interference if placed nearby. And that was the case, less than 1 meter away. I removed the router and the problem is solved.