[hpsdr] Balanced audio on future boards

[H.A.Meijer]

Hi Matt,

One can also think about completely deleting the Hardware audio in- and 
output and doing it at the pc/soft- and hardware.
For now you can do it using VAC and a sound-card.

Look for example at an ESI maya44 
<http://www.esi-audio.com/products/maya44/>, it has symmetric in and 
outputs, even an microphone input with phantom +48V,
and very low latency (ASIO) and not to expensive .
I have tested it on my sdr-pc and it works very good (it even solved my 
audio distortions during zooming and panning the panadaptor, h.i.)

Maybe in the future, (not knowing if possible?) HP-Powersdr can skip the 
need for VAC and approach the sound-card directly(?).

73'
  Bert PA2XHF



Op 1-12-2015 om 17:52 schreef Matthew J Wolf:
> ***** High Performance Software Defined Radio Discussion List *****
>
> Has there been any thought of including balanced audio input and 
> output on the future HPSDR boards?
>
> One would think it would be as easy as using a different codec.  A 
> codec that provides both single ended and balanced audio.
>
> Having unpopulated headers on the board for the balanced audio would 
> be fine. I admit that there would be a minority that would want 
> balanced audio.
>
> I have looked at the schematics and the PCBs for Mercury, Pennylane, 
> and Hermes. There is no "easy" way to add balanced audio.
>
> -Matt, N4MTT
> _______________________________________________
> HPSDR Discussion List
> To post msg: hpsdr at openhpsdr.org
> Subscription help: 
> http://lists.openhpsdr.org/listinfo.cgi/hpsdr-openhpsdr.org
> HPSDR web page: http://openhpsdr.org
> Archives: http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/attachments/20151201/812364b7/attachment-0002.htm>