JohnSwenson wrote: 
> All outputs can physically be on at the same time, whether they can in
> actuality is a mater of software. Currently I don't think squeezelite
> supports more than one output, BUT it can certainly be done using the
> ALSA duplication technique used in the Touch. 
> 
> Which board? The csp1 board will not have dedicated control outputs.
> They can easily be added using USB. . By using USB you can get exactly
> what you want with drivers that already exist. There are literally
> hundreds of USB to control boxes out there at very inexpensive price
> points that can cover just about anything anybody may want. 
> 
> The complement of IOs on CSP2 has not been decided. My personal
> preference is to not put dedicated connectors on the player for things
> that can easily be done with USB. It's just that I'm having this
> nightmare that the back of this thing keeps on expanding larger and
> larger as I put more and more dedicated connectors on the back. The
> problem with that is nobody is going to want to use all of those
> different things simultaneously, I would rather have a couple extra USB
> jacks that can be used for many different things. 
> 
> I'm not trying to brush you off, I'm very carefully listening to all
> such requests, I'm just trying to come up with solutions that can
> accommodate as many different interfaces as possible with the least
> amount of back panel space and and development effort. Part of the
> problem here is that If I add connector A at 3.3V, microseconds later
> someone else will want 5V, Then someone else will want 12V, then someone
> else wants connector B, then 18V AC, then .... By saying all such things
> are covered by USB, I need one jack with one set of electronics driving
> it, the user can choose amongst the hundreds of available USB to control
> interfaces available to get exactly what they want. 
> 
> John S.

Thanks for the clarification John. I understand it is difficult to
address everyone’s whishes and dreams in such projects. 
I’ll soon have the possibility to play with the wandboard myself. I’m a
total Linux noob but I see this as an opportunity to get me more
familiarized with it.  

Maybe a thought: I guess we could divide the target audience of this
project into two larger groups. A first group who wants a single box
with a high quality internal DAC. A second group would want a box with
only digital outputs to be connected to a variety of external DAC’s. 
Maybe it is easier to just develop two different piggy back boards for
the Wandboard that addresses the needs for the audience in group A and
another board that addresses the needs for group B. This might be a way
to reduce the number of connectors on each piggy back boards?

I also like the “modular” approach and maybe USB is indeed another way
to achieve that.


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