[hpsdr] Janus-Ozy Sound Card Driver [WDM]

[Don N6MCE]

For CW (and anything really) we want low latency driver.

To achieve low latency, ASIO drivers were developed in the audio 
recording world.

ASIO drivers bypass Windows audio processing functions to achieve low 
latency.
WDM, Windows Driver Model, is a class of Windows drivers that use 
Windows audio processing functions, hence will always have more latency 
than we want.

To be useful, we would like an ASIO Ozy+Janus driver, not a WDM driver.
Then we would ask ham software developers to provide standard ASIO 
driver support in their applications.
With an ASIO driver, Ozy+Janus would be compatable with a host of higher 
quality programs with ASIO driver interface.

If you Google ASIO low latency soundcard drivers
first search result is
http://www.usb-audio.com/
which tells more than I know about the subject.

I'm sure the Winrad and many others could expound at great length on 
this subject.

Alas, this humble lurker will be quiet before more of my ignorance is shown.

Don  N6MCE


Lyle Johnson wrote:
> ***** High Performance Software Defined Radio Discussion List *****
> 
> Hello Dick!
> 
> I don't know what WDM means, but if this is a driver so that Ozy+Janus 
> is just a sound card for Windows, I think it would be very useful.
> 
> Mercury may not need Janus, but any QSD/QSE system could certainly use it.
> 
> 73,
> 
> Lyle KK7P
> 
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