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Fat bottom Trump
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# 250637 20-May-2019 09:53
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I have an older audio installation without HDMI. Until yesterday (when I noticed it) I had 5.1 sound from my DVB-T box via the digital audio cable. Whether a broadcast is actually in 5.1 or not, all of my 5.1 speaker LEDs light up whenever I am on an HD channel. Now they don't and I am only getting stereo sound even with programmes that I am pretty sure should be 5.1.

 

I do get 5.1 from the Blu-ray player so presumably there is no fault with the amp. I have verified the UHF receiver settings and also the TV and I don't see anything wrong. Before I tear everything apart trying to diagnose this, an obvious question is whether surround sound is still being broadcast at all on FTA. I assume it is but I feel I should check that first, so if anyone could verify I would appreciate it. Suggestions on how to proceed further are also welcome.

 

    





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  # 2241188 20-May-2019 09:57
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Yes - 5.1 AC3 is still being transmitted on the HD channels.

 

Have you accidentally switched your DVB-T box to the stereo (AAC) audio track?

 

 




Fat bottom Trump
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  # 2241193 20-May-2019 10:09
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Thanks for reply. I did check that but will look again. TV is in other room and not on at moment.

 

 





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Fat bottom Trump
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  # 2241234 20-May-2019 11:34
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I checked and it is on AC3 where supported. I suspect a fault in the receiver. I have an old one that should still work so will try that next.

 

 





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Fat bottom Trump
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  # 2241461 20-May-2019 14:08
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This must be a glitch on my TV box. I have a combo receiver, DVB-T2 and DVB-S2. I went over the settings several times. Then I decided to start playing with them just to see what would happen. Under the digital sound menu there are choices for PCM, Raw s/pdif and raw HDMI. I use the s/pdif setting because I don't have HDMI input on my amp and for audio I use optical instead. I always assumed that raw HDMI wouldn't work since I don't have HDMI input. To my surprise, when I switched the setting, the surround speakers LEDs suddenly lit up. It doesn't sound like anything is being broadcast at the moment in full surround (most of it is daytime crap) but I can certainly hear the difference on the front speakers. It seems to be working, even though I don't have HDMI on the amp. Anyway, then I switched back to raw s/pdif and the surround LEDs also came on. So is this just a fault in the TV box? It's not a mechanical switch so it can't be a bad connection, but that's what it acts like.

 

Anyway, it seems to be working again. I'm not sure why it also works on HDMI but it must get an audio connection through the s/pdif anyway.

 

 





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