Elite Only Passing Stereo PCM

[Capeta]

Sure, point me to some manufactor of Recievers that has this trivial thing done.

Um...virtually ALL present day receivers allow signal manipulation in the digital domain without having to resample. How did you actually think home theater receivers worked? How do you think channel delay/volume etc is adjusted for larger/smaller rooms/speakers? Who knows maybe there are some Big Small Planet characters running around inside your SONY receiver flipping opamps and flipflops....

 

[Diamond.G]

Sure, point me to some manufactor of Recievers that has this trivial thing done.

Same could be said of a Reciever that can take the movie (5.1 or 7.1) and mix the menu sounds (2.0) and/or commentary (2.0 or 5.1). Besides why would it be hard to go the processing in the digital relm isn't what all those high quality/cost DSP's are for?

 

[-tkf-]

Um...virtually ALL present day receivers allow signal manipulation in the digital domain without having to resample. How did you actually think home theater receivers worked? How do you think channel delay/volume etc is adjusted for larger/smaller rooms/speakers? Who knows maybe there are some Big Small Planet characters running around inside your SONY receiver flipping opamps and flipflops....

Thank you very much for this post, it really helps, and i hope you get a little remark as well.

 

[-tkf-]

Same could be said of a Reciever that can take the movie (5.1 or 7.1) and mix the menu sounds (2.0) and/or commentary (2.0 or 5.1). Besides why would it be hard to go the processing in the digital relm isn't what all those high quality/cost DSP's are for?

For example, afaik if you have a 5.1 signal and a 4.0 setup, you just tell your reciever this. The AC-3 decoder would not decode the AC-3 stream into 5.1 PCM signals that the reciever then would have to mix. It just decodes directly to 4.0 and creates the "phantom channel" as well.

Anyway, as i said many times in this thread (and it was ignored), if the player can do all this before it outputs the PCM it wont matter. But i doubt in, and as i said before, the HD-DVD addon and the PS3 is not likely candidates to anything like this, considering what they offer now. Which is my main problem, using a PS3 as main Blu-Ray player just got a uncertain future in my home.

 

[Capeta]

For example, afaik if you have a 5.1 signal and a 4.0 setup, you just tell your reciever this. The AC-3 decoder would not decode the AC-3 stream into 5.1 PCM signals that the reciever then would have to mix. It just decodes directly to 4.0 and creates the "phantom channel" as well.

Downmixing can be done on the player with little to no effort and then passed to the receiver as PCM and let the receiver adjust room acoustics etc. Even a $25 DVD player can downmix 5.1DD to 2ch PCM. Once the receiver gets the PCM signal it could do whatever it wants with it.

 

[Diamond.G]

For example, afaik if you have a 5.1 signal and a 4.0 setup, you just tell your reciever this. The AC-3 decoder would not decode the AC-3 stream into 5.1 PCM signals that the reciever then would have to mix. It just decodes directly to 4.0 and creates the "phantom channel" as well.

Anyway, as i said many times in this thread (and it was ignored), if the player can do all this before it outputs the PCM it wont matter. But i doubt in, and as i said before, the HD-DVD addon and the PS3 is not likely candidates to anything like this, considering what they offer now. Which is my main problem, using a PS3 as main Blu-Ray player just got a uncertain future in my home.

Wait you are talking about something that may very well be completely different than what I am talking about.

I am asking where the reciever is that can take all the differing sources that the player mixes and mix them itself and you are talking about downsampling.

 

[mrcorbo]

For example, afaik if you have a 5.1 signal and a 4.0 setup, you just tell your reciever this. The AC-3 decoder would not decode the AC-3 stream into 5.1 PCM signals that the reciever then would have to mix. It just decodes directly to 4.0 and creates the "phantom channel" as well.

OK, I can see what you are saying here. Since the original stream contains metadata that directs the decoder to alter the channel levels during the downmixing phase (though I think your perception of "decoding to 4.0" is flawed) it can be pre-tested and altered by the sound engineer to achieve the best result in that environment.

The thing that I am questioning is why all the concern for optimal sound quality in a situation that by its very premise is sub-optimal. I can't believe that there are going to be a lot of audiophiles who would tolerate any kind of downmixing, optimal or not.

 

[AntShaw]

Anyway, as i said many times in this thread (and it was ignored), if the player can do all this before it outputs the PCM it wont matter. But i doubt in, and as i said before, the HD-DVD addon and the PS3 is not likely candidates to anything like this, considering what they offer now. Which is my main problem, using a PS3 as main Blu-Ray player just got a uncertain future in my home.

There will be no problems with either the 360 add on or the PS3 to do all this in the player. It's based off the CPU and both Cell and Xenon are more then powerful enough to do this.