well,
if it should be on the cheap side,
and the need for usb because of a lacking pcmcia/expresscard is present,
there there are
logilink ua0099 available, which are offering 8ch output
for 23euros
i bought some here:
http://www.pollin.de/shop/dt/MDUyODcyOTk-/Computer_Informationstechnik/USB_Technik/USB_Konverter/7_1_Kanal_USB_2_0_Soundbox_LogiLink_UA0099.html


cheers,
peter

On 2016-05-06 14:54, patrice colet wrote:

 If it's just about having 16 channels DAC, using two C-media CM6206 soundcards should be enough but you might need direct input boxes if the amplifiers are not just beside the computer, I tried this chipset and it works good on a pcduino2 and Pd with 8 channels, no glitches, it should works as well on a Raspberry Pi 3.  So it's possible to cluster the soundcard+pi on a network and have as much channels as you need.


e 06/05/2016 à 14:32, Simon Iten a écrit :
or get yourself an old rme multiface hdsp card, eight analog outputs and eight adat… you will need an old laptop with pcmcia or a new one with express card (or a macbook with thunderbolt and an adatper)

rme cards are good quality and quite cheaply secondhand (200 $)

On 06 May 2016, at 14:08, William Huston <williamahuston@gmail.com> wrote:

The Motu is $1000. The Presonus is $500. What about getting 8x 2-channel USB soundcards? The Griffin iMic is a 2x2 and is $40. So 8x would be $320.

If you look around, you can find 2ch USB audio adapters for $20/each, $10/each, even $2/each. For that kind of money you could purchase a few and evaluate them in terms of quality, or maybe read up on what chip they use and read reviews.

I'm pretty sure Pd supports multiple audio adapters, but have not tested this.

Please post your results, as I would like to get into ambisonics as well and be able to drive 8x or more speakers. But I don't want to spend $1000!



On Thursday, May 5, 2016, Jack <jack@rybn.org> wrote:
> Hello,
>
> With the following configuration :
> Ubuntu 16.04
> Pd-0.47.0
>
> I need to find a solution to send sounds on 16 different speakers.
> What is your advice regarding the purchase of USB sound cards under
> Linux with this configuration ? For you, which sound cards are more
> willing to do this job ?
>
> Ciao.
> ++
>
> Jack
>
>
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be happy and free from suffering :)
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