[AudioI] Isolated Card + XLR Breakout Board Questions

[Matt]

Hi,

On Thu, 2021-04-15 at 23:20 +0200, Stephan Eckes via People wrote:
> Hello People!
> 
> Currently I am using the Isolated Soundcard + Breakout Board for a
> project.
> I have some questions and it would be super cool if somebody knows
> answers ;) 
> 
> 1. Is it normal that the card makes this loud click sound when
> starting to play or pause?

That click is coming from the relay. The relat engages and disengages
when the soundcard mutes itself.

> 
> 2. Why are there two different audio outputs, one is called direct
> out the other one is called something with sample. For me only the
> direct out is working properly. The other one is crackling during
> playback.
> 

Where do you see the two outputs ?

> 3. When I want to connect an encoder to the GPIOs which one are still
> free to do so? Maybe the ones marked with white rings on the PCB?

The white rings indicate which pins are reserved. So you can connect to
the other pins.

> 
> 4. Is it true that the card offers 48V phantom power and how is it
> possible to activate or deactivate?

The phantom power line is there. The phantom power will work with
preamplifier boards which are desigend to interface it.


> 
> Thanks in advance, even if you answer just one question :)
> 
> Cheers,
> Stephan
>