I looked into this a year ago and the RPi unfortunately is crippled for
this because the processor used only supports two channels of audio - HDMI
iirc actually only allows for multichannel though it mandates stereo. The
BeagleBoard (or rather the BeagleBone) is a better choice though slightly
more expensive. I have one and a multichannel audio board which I've been
meaning to hook up since last year. The DAC is on an evaluation board for
the ADAU1966 (which has 16 outputs ) I also have a sample of the AD1934
which I will need to make a pcb for. The eventual end result (as a product)
would be a board with an Arm, a dac and an SD card interface, nowt much
more. Given the ridiculously low cost of Arms (and similar processors)
these days I'm very dubious about using arrays for anything but a mass
market product with large sales (or something that needed to be thoroughly
copy protected) - 10 years ago I would have said the opposite.
Dave
On 23 May 2013 18:31, dw <d...@dwareing.plus.com> wrote:
> On 23/05/2013 17:17, Simon Edmonds wrote:
>
>> Ooops - I'll try that again
>>
>> Raspberry Pi has HDMI
>>
>> HDMI supports 8 channels of HD digital audio
>>
>
> I wasted a lot of time trying. I think the RPi only supports two channels
> on HDMI, or did six months ago.
> Jackd also seemed to be broken, although some sort of fix emerged.
> BruteFIR worked though :-)
>
>
>
>
>> then a breakout box to take the 8 channels of audio to analogue?
>>
>> Simon Edmonds
>>
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--
As of 1st October 2012, I have retired from the University, so this
disclaimer is redundant....
These are my own views and may or may not be shared by my employer
Dave Malham
Ex-Music Research Centre
Department of Music
The University of York
Heslington
York YO10 5DD
UK
'Ambisonics - Component Imaging for Audio'
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