On 24/02/14 19:19, Milan Lazecky wrote:
Thank you Simon for positive reaction,
I start to look forward to prepare such synthesizer, will think about HDMI
audio, but at this moment I will be just happy with RPi stereo line-out.
Kind regards
You might not be so happy with the built in line out, it is a very basic output
with very low quality audio. The hardware design is quite heavily focussed on
playing media (preferably directly, on an otherwise headless system) through the
HDMI output, and I've found the supplied libraries and code for doing this quite
workable. The xbmc lot did a fair bit of work on this, and as a small device to
attach to a projector they are great.
I've also used some small usb audio cards with good results, but did not need
low latency or other usb stuff so I can't say how they'd go with your project.
Here is a link to one we used ...
http://www.ebay.co.uk/itm/UK-PCM2704-USB-to-S-PDIF-Sound-Card-DAC-3-5mm-analog-digital-output-volume-funct-/120940457164
but I think we got them a bit cheaper than that, and used a little amp about
that size also ... for a bunch of sound sources. There are lots of little cards
based on that chip, they probably all work well.
Simon
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