Error:"Unsupported audio signal. Check device output"

[hrishi83]

Hi,

I have recently purchased Sony NX500 (Full HD) TV along with Airtel HD setup Box.

However when I watch Nat Geo HD channel, I am able to see the video of very high quality but without any audio.

The message displayed on tv is "Unsupported audio signal. Check output device."

I am unable to identify whether it is the problem of the STB or the TV.

Are there any settings that I need to change?

Also the bulder has taken the multi dwelling unit plan from airtel. Hence we have only a single big dish on the terrace of the building.

Can this be also the reason for no audio for NAt GEo HD channel?

Please note that I am not having any issues with other regular channels.

 

[allajunaki]

NatGeo pushes out audio as Dolby Digital. Does your TV support Decoding of Dolby Digital Audio?
If not, there should be a setting somewhere in the STB to output audio as "MPCM" or "PCM". Set it to that and you should be good to go.

 

[theironhorse]

go to the stb settings and select pcm is sound output.. and that shud do it..

 

[prankey]

Surprised that NX500 can't support DD audio. My 4 year old 768p Samsung support DTS as well when its not even documented in the manual.

 

[hrishi83]

The problem was with the STB itself. I finally got it replaced 2 days before and now its working perfectly fine.