Minix U9-H:008FW headphone output problem

A

alexep

Member
The problem with the headphone output in Minix U9-H (which is used for a hearing impaired family member) : when playing stereo sound, everything is OK , but when playing multi-channel sound - then there is a loud noise in the headphones (while the 5.1 sound is normal on the HDMI / RECEIVER).
After that, the noise in the headphones remains constantly, in order to stop it, I have to restart the minix.
(Headphones are used with a normal wired connection).

I would be grateful for any help .
 
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alexep said:
The problem with the headphone output in Minix U9-H (which is used for a hearing impaired family member) : when playing stereo sound, everything is OK , but when playing multi-channel sound - then there is a loud noise in the headphones (while the 5.1 sound is normal on the HDMI / RECEIVER).

After that, the noise in the headphones remains constantly, in order to stop it, I have to restart the minix.

I would be grateful for any help .
Click to expand...

If I understand correctly, this is because you have a passthrough option set on the minix. This transmits the audio signal to your receiver to decode it there. While this is a preferred setting if you have a receiver, your headphones can't decode a signal - it has to be decoded by minix. Setting the audio settings to PCM should solve your problem. Please, let me know if that works.
 
ENDRJUPL said:
If I understand correctly, this is because you have a passthrough option set on the minix. This transmits the audio signal to your receiver to decode it there. While this is a preferred setting if you have a receiver, your headphones can't decode a signal - it has to be decoded by minix. Setting the audio settings to PCM should solve your problem. Please, let me know if that works.
Click to expand...
I assumed that there is a digital-to-analog converter for the headphones, that is, it should not depend on the output to the HDMI, is this assumption wrong? Therefore I have to not use multichannel sound?
 
alexep said:
I assumed that there is a digital-to-analog converter for the headphones, that is, it should not depend on the output to the HDMI, is this assumption wrong? Therefore I have to not use multichannel sound?
Click to expand...
Please, check the way I proposed to see if it fixes the problem, that way we will know how to proceed further and pinpoint the problem.
 
ENDRJUPL said:
Please, check the way I proposed to see if it fixes the problem, that way we will know how to proceed further and pinpoint the problem.
Click to expand...
I changed the settings of the “digital sound” (Android) to PCM , this did not solve the problem . Please explain exactly where in the MINIX or Android settings I can disable a passthrough option .
 
alexep said:
I changed the settings of the “digital sound” (Android) to PCM , this did not solve the problem . Please explain exactly where in the MINIX or Android settings I can disable a passthrough option .
Click to expand...

If you've set the audio to PCM you've already disabled HDMI passthrough. (Audio will still be sent to your AVR, however, it will first be decoded by the U9-H & be sent to your AVR as multichannel PCM audio instead. (Atmos & DTS:X, as examples, won't work as long as you have HDMI passthrough disabled if it's applicable to you of course.))

If you've already tried that, also try setting the "output devices" (under sound devices) to auto rather than HDMI that you'd ordinarily use with an AVR.

Do you experience this issue with all multi-chan audio formats or is it Dolby, DTS, AAC, etc. in particular?

Do you have TalkBack or other accessibility settings enabled on the U9-H as well?
 
ArcticWolf said:
Do you have TalkBack or other accessibility settings enabled on the U9-H as well?
Click to expand...


The problem remains when using all of multi-channel audio format and in the PCM mode and output in AUTO mode .

TalkBack and other accessibility settings (except for Android Assistant) are disabled on my U9-H.

I'd like to understand: only my minix has this problem or is it common to all U9-H ?

If this is only a defect in my device, I will be forced to stop “fighting with windmills.”

Can anyone check this on his device?
 
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alexep said:
The problem remains when using all of multi-channel audio format and in the PCM mode and output in AUTO mode .

TalkBack and other accessibility settings (except for Android Assistant) are disabled on my U9-H.

I'd like to understand: only my minix has this problem or is it common to all U9-H ?

If this is only a defect in my device, I will be forced to stop “fighting with windmills.”

Can anyone check this on his device?
Click to expand...

That being the case you really need to determine if it's the specific headset you're using that's having this effect or if it's the simultaneous connection to an AVR & the headset.

Can you try directly connecting your U9-H to your TV first? What then happens if you do? Does the headset work as intended with multi-chan sources?

Have you tried another headset? Have you also tried using the headset jack on the AVR itself or the TV as well?

What effect are you ultimately after? Simultaneous output to both the AVR/speakers & the headset?
 
ArcticWolf said:
That being the case you really need to determine if it's the specific headset you're using that's having this effect or if it's the simultaneous connection to an AVR & the headset.

Can you try directly connecting your U9-H to your TV first? What then happens if you do? Does the headset work as intended with multi-chan sources?

Have you tried another headset? Have you also tried using the headset jack on the AVR itself or the TV as well?

What effect are you ultimately after? Simultaneous output to both the AVR/speakers & the headset?
Click to expand...

1. There is no problem connecting headphones to the receiver or TV

2. Using 2 other sets of headphones with the U9-H is the same problem.

3. My goal is to output 5.1 audio through HDMI / receiver / 5.1 speakers and, at the same time, output audio to the set of the most common stereo headphones for a hearing impaired family member.

4. Of course, I can turn off the output of multi-channel sound in all applications, but this will deprive me of the opportunity to get satisfaction from the presence of a home theater. I don’t feel like it, but, apparently, I will have to find the right device for now.
 
alexep said:
1. There is no problem connecting headphones to the receiver or TV

2. Using 2 other sets of headphones with the U9-H is the same problem.

3. My goal is to output 5.1 audio through HDMI / receiver / 5.1 speakers and, at the same time, output audio to the set of the most common stereo headphones for a hearing impaired family member.

4. Of course, I can turn off the output of multi-channel sound in all applications, but this will deprive me of the opportunity to get satisfaction from the presence of a home theater. I don’t feel like it, but, apparently, I will have to find the right device for now.
Click to expand...

I've been having a play around with three different headsets I have. Two are Bluetooth but can still be used with a direct 3.5 mm connection & the third set are standard wired.

I'm seeing the same results or no audio at all through the headset with multi-chan sources as long as I'm attempting to get simultaneous output to the AVR & the headset.

The only workaround I've found to this is my AVR has a setting to output to the speakers & my TV simultaneously. I can then use the headphone socket on the TV which can only output in stereo anyway & it mutes the TV with a headset connected, but multi-chan audio including ATMOS/DTS:X still continues to output normally to my 5.1.2 system as well.

Obviously, if your AVR has the same capability you may also be able to use that to workaround it.

If the cable is an issue coming from the TV but you can use this method to workaround, you could also consider a cheap Bluetooth transmitter & plug that into the headset jack on the TV to output to a Bluetooth headset & still retain normal audio from your speaker system.

Does that work for you :)?
 
ArcticWolf said:
I've been having a play around with three different headsets I have. Two are Bluetooth but can still be used with a direct 3.5 mm connection & the third set are standard wired.

I'm seeing the same results or no audio at all through the headset with multi-chan sources as long as I'm attempting to get simultaneous output to the AVR & the headset.

The only workaround I've found to this is my AVR has a setting to output to the speakers & my TV simultaneously. I can then use the headphone socket on the TV which can only output in stereo anyway & it mutes the TV with a headset connected, but multi-chan audio including ATMOS/DTS:X still continues to output normally to my 5.1.2 system as well.

Obviously, if your AVR has the same capability you may also be able to use that to workaround it.

If the cable is an issue coming from the TV but you can use this method to workaround, you could also consider a cheap Bluetooth transmitter & plug that into the headset jack on the TV to output to a Bluetooth headset & still retain normal audio from your speaker system.

Does that work for you :)?
Click to expand...
Thanks ArcticWolf,
I will try to use your recommendations and at the same time I will continue to search for a device in which there are no similar problems with the digital-to-analog converter.
 
alexep said:
Thanks ArcticWolf,
I will try to use your recommendations and at the same time I will continue to search for a device in which there are no similar problems with the digital-to-analog converter.
Click to expand...

You're welcome. Fingers crossed ;)!!
 
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