Quote from pmcmorris on July 28, 2011, 05:32
Quote from deggy on July 28, 2011, 03:34
I can imagine lots of people looking at these computers for embedded media applications. From that perspective an integrated audio capability would be useful - maybe just a simple 3.5mm output (as opposed to needing to add a USB sound card).
That said, I can see how feature bloat would quickly eat into the cost and size of this unit. How would the developers suggest taking an audio only output?.
I expect that there would be a multichannel digital audio stream coming out over the HDMI as raw PCM. That's really the best quality option and doesn't require any special hardware on the Pi itself. My concern is that if you put the DAC in the device then you have more problems to deal with, what quality are the components? how clean is the signal? do we need drivers for the audio hardware? If you're outputting a 5.1 mix on the HDMI outputs what comes out of the analog jack? Is it independent or is using the other channel data? What kind of downmixing would it use to go from multichannel to stereo? Where does the work occur? on the CPU or audio hardware? what is the latency introduced by the conversion?
A user could easily add a converter as an external attachment that captures the audio stream from the HDMI and offers analog outputs. In most cases, I don't think you would actually to attach separate USB audio devices. Do you have drivers for that device? I can see USB headphones (especially headsets with a mic) being something that adds value though.
I'm really hoping they keep it as simple as possible.
Quote from Eben Upton on July 26, 2011 at 2:16 pm
We support HDMI and analogue audio out from the base board.
Is the analogue audio will be a 3.5mm jack (I suspect it will)?
If adding video and audio analogues output offer more possibilities, it is probably powered by an additional chip on the motherboard card. I don't know really what are the fallouts on price and size (could you tell us?), but it may be better if that will be offered as an option...
I think also that an integrated WiFi chip would be great.
What do you think about adding a second USB hub for the optional second USB port and RJ45 port insted of including them on the same ship (2*480Mbps =
In the same way, you could also add the WiFi on this additional hub with the USB+RJ45 option...
But I suppose that doing that without increase too much the size and the price is not easy
Regards and congratulations for this beautifull project