Mnyb wrote: 
> Yeah ,just an idea there is no discrete multichannel streamer that I
> know about ? That would be an unique feature .
> Possible some oppo blue ray with dlna or some such :/ just basic
> directory browsing after iso's ? Or files .

Hmmm, I haven't thought too much about multi-channel. The HDMI subsystem
takes up to 8 uncompressed channels, purely controlled by software, so
nothing is needed at the hardware level to support this. I'll let the
software types figure that one out!

As far as other outputs go, the chip has 36 audio output pins, each of
which can be either an I2S or S/PDIF, thus up to 72 channels!!!  They
can be input or output, but cannot be completly independant. Each pin
can have different data, but the timing and clocks come in groups. There
are 6 groups, 4 of which can handle up to 8 channels per group and 2
groups that can handle up to 20 channels per group. 

I think that is enough flexibility for us!

We can handle this in a couple ways: 
1; board has two analog channels, one S/PDIF output (which  may be same
data on coax and optical), thats it.
2; same as above but one or more daugter card connectors to add
additional outputs
3; multiple main boards with different numbers of outputs. 

Adding extra analog outs (more DACs) is actually fairly easy. For
example upping a Gen2 to 8 analog outs is not very difficult, the board
costs more money becayse it has to be larger to support all those extra
connectors! We could probably come up with a stacking connecter approach
where you could stack multiple boards each with a set of jacks. 

I would rather avoid optional outputs in a separate box, it gets
difficult to maintain good clocking etc to external boxes (certainly not
impossible, but difficult)

Of course any of this will require some way of getting multiple channel
data into the box. Obvious first steps are things like Dolby Digital,
multi channel encodded onto 2 channels, the encoder can run in software
on the processor. Beyond that I think it will need a new or expanded
protocol. 

Any thoughts?

John S.


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