Hi,

this is crap by design!
This is a hack that cannot work reliably, the channels are not synchronized between the I2S port and the FPGA, sometimes they mix.
And the card is not always recognized during boot, you must reboot until it is detected.

Stay away!

joël

le 13/07/2021 à 21:17, cyrille henry a écrit :

Hello,

I bought one octo for a project thanks to Thomas experience,
It worked great at home when I plugged it on my mix table, but when I install everything in the project final destination, plug the sound-card on an amplifier, switch everything on: the sound card did not works anymore.
I tried to contact someone at audioinjector, but I hardly have answer to my question. IT'S THE WORST CUSTOMER SERVICE EVER!
It's been 2 week, my project is on standby, I'm still stuck with a broken sound card.
So I don't recommend this soundcard to anyone and I consider buying a gigaport instead and throw this crap away.

unless someone have a suggestion to a cheaper 8 output soundcard for a RPI 4.

Cheers
C

Le 19/03/2021 à 21:12, Thomas Grill a écrit :

Yes, i have one of those and it works well on the Rpi, also with Pd of course.
best, Thomas

Am 18.03.2021 um 10:24 schrieb Pierre Massat <pimassat@gmail.com>:

Thank you all for your replies. I didn't even know surround soundcards
existed. This looks promising given my budget.
In the meantime I found this :
https://shop.audioinjector.net/detail/Sound_Cards/Octo+RCA+sound+card
Anybody has experience using it with Pd ?

Cheers,

Pierre.

2021-03-17 17:53 UTC+01:00, Lorenzo Sutton <lorenzofsutton@gmail.com>:

On 17/03/21 07:42, Pierre Massat wrote:

Dear all,

I haven't posted anything on this list in years.
I'm trying to build a system to play several sound files in a loop,
each around 2 minutes in length, all at the same time. By "several" I
mean 10 to 15 different files. While I'd have no problem making a Pd
patch to achieve this, I have no idea what hardware I could use. I
have a limited budget, and I was planning on running Pd on a Raspberry
Pi (or similar single-board computer).

Is there any cheap way of outputing than many channels from a single
(a couple of) RPi ?

How many are 'many' :-)

If it's <= 8 channels and you don't care (too much) about latency you
could check out a cheap '7.1' USB card (these can cost less than 30 euro
online) and if it exposes 8 writable inputs via jack that could work.
The physical outputs of these are, of course, unbalanced and in couples
so you'd need to do some cable splitting and then maybe have a mixer
nearby...
I never did this on the RPi but I _did_ something similar with a cheap
5.1 usb sound blaster hooked to a laptop in the past.
I'm assuming, of course that each file would 'consume' just 1 channel...

YMMV.

If you want more than 8 output channels it will be hard to stay 'cheap'
(which of course depends on 'how much' is your limited budget), and then
- of course - you need to check linux compatibility (i.e. if they are
'class compliant'...)

My two cents,

Lorenzo.

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