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lose volume control on DTS or AC3 downmix off

Started by zcache, 24 Sep 2018 05:58

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#1 zcache

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Posted 24 September 2018 - 05:58

Hi all,

First of all I would to say sorry my English not much quite good.

 

2 days ago I tried to DIY the 5.1 home theater system with my zgemma H5 (drive with OpenPLI 6.2), first time audio test it's not working the audio still same normal cheap speakers. I tried to turn off DTS and AC3 downmix from audio menu setup and open the 5.1 audio test again.

 

Now it's working, I can hear the audio like theater cineplex. But it's really loud! I can't make it softer by remote. The remote control working only make the audio silent (no any audio level bar show up) and very louder (just 1 bar audio level) so I adjust the volume of 5.1 amplifier system instead.

 

It's not quite convenient I think. It's would be good and better if the volume can be control by STB remote as normal. Could you please check this point would be appreciated.

 

Thank you.

 

 

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ZGEMMA H5 Power by OpenPLi 7.0 Released

Re: lose volume control on DTS or AC3 downmix off #2 littlesat

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Posted 24 September 2018 - 06:06

This is how it should work... ! When downmix is off then ac3 etc. it is irectly forwarded to you surround set as is and the box can’t regulate the volume. so it should be done via the surround set. When you connect the surround set with hdmi you can try to forward the volume via hdmi-cec on your box. With optical cable this can’t be done.

Edited by littlesat, 24 September 2018 - 06:08.

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Re: lose volume control on DTS or AC3 downmix off #3 betacentauri

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Posted 24 September 2018 - 06:11

Right. Or buy a Logitech or similar remote.
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Re: lose volume control on DTS or AC3 downmix off #4 zcache

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Posted 24 September 2018 - 07:47

This is how it should work... ! When downmix is off then ac3 etc. it is irectly forwarded to you surround set as is and the box can’t regulate the volume. so it should be done via the surround set. When you connect the surround set with hdmi you can try to forward the volume via hdmi-cec on your box. With optical cable this can’t be done.

 

Thank you for clarify information, look like it's no choice.

 

 

Right. Or buy a Logitech or similar remote.

 

My speaker system I bought is Microlab x3 5.1 (about 140 USD) it's come without remote control.


ZGEMMA H5 Power by OpenPLi 7.0 Released

Re: lose volume control on DTS or AC3 downmix off #5 Pr2

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Posted 24 September 2018 - 10:42

If it has HDMI-CEC configure it in OpenPLi to forward the volume keys.


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Re: lose volume control on DTS or AC3 downmix off #6 WanWizard

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Posted 24 September 2018 - 11:17

Thank you for clarify information, look like it's no choice.

 

No, it is a hardware limitation, AC3(+) is directly forwarded to the output.

 

If you use this, you need to set the volume of the box so that AC3 and PCM have roughly the same volume, and use the TV or Amp to control the volume for both.


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