No AC3 sound ... (3 Viewers)

[kiwijunglist]

No input error, all works

I turn off bitstreem, sound ok, But in the film with AC3 5.1, the receiver receives a 2.0, did not have time to check the settings.

In VLC work fine But I did not understand in New Russian interface, including Bitstream or not check again ...

The 2.0 is bc the audio renderer is not set to 5.1

 

[azzuro]

The 2.0 is bc the audio renderer is not set to 5.1

the movie has only 2 channel. so for it work like dolby surround, and not as Dolby Digital

 

[Vasilich]

In PM

me too

 

[ajs]

So, i think one thing on your file is not good.

I also think that the problem is in the file. Probably characteristics in the header does not match the stream.

 

[ajs]

The 2.0 is bc the audio renderer is not set to 5.1

When bitstream turned on:
For AC3 2.0 -> AVR recieved DD 2.0
For AC3 5.1 ->AVR recieved DS 5.1


When bitstream turned off:
For AC3 2.0 -> AVR recieved PCM 2.0
For AC3 5.1 ->AVR recieved PCM 2.0


Then the wife came and kicked me

 

[kiwijunglist]

The 2.0 is bc the audio renderer is not set to 5.1

When bitstream turned off:
For AC3 2.0 -> AVR recieved PCM 2.0
For AC3 5.1 ->AVR recieved PCM 5.1

Why sad face?

 

[ajs]

Why sad face?

Typo already fixed at the top of the post.

 

[kiwijunglist]

Audio set to 2 channels in the audio renderer.

Change number of speakers in windows audio settings.

 

[ajs]

Audio set to 2 channels in the audio renderer.

No, 5.1

Change number of speakers in windows audio settings.

Set 5.1 ...

 

[Vasilich]

PCM can transport only stereo. So what did you expect? if LAV should decode it, then there are 2 ways to transport more than 2 channels to receiver:

• 5.1 analog output from PC (yes, 3 pairs if stereo cables, probably quality loss as receiver can have better DACs that sound card in PC)
  
• encode it again in DD or DTS to be able to transport it via HDMI or SPDIF. This can be done either with some sound cards having "DD Live" feature, or smth similar for realtime encoding in DTS, or with some filters like AC3Filter, Or MPAR (activating AC3 encoding there)

P.S. Just checked that file with this AC3 stereo sound - my old Yamaha receiver is able to decode it properly when bitstreaming from HTPC. Have you expected it to have 5.1? Mediainfo clearly says
Format : AC-3
Channel(s) : 2 channels
Channel positions : Front: L R