[hpsdr] Audio distortions during zoom/pan panadapter display_2

[H.A.Meijer]

Hi,

I have to admit that I'm also a bit confused by this mail about the asio 
(forAll) driver.
How do I : "  Choose the ASIOxxx driver as the audio output device on 
the software"


73 Bert.


Op 30-11-2015 om 8:21 schreef Helmut:
> ***** High Performance Software Defined Radio Discussion List *****
>
>
>
> Hi,
>
> Eager to climb up the learning curve: I thought the on-board audio 
> codec TL320 is controlled by USB protocols as part of the Ethernet 
> protocol. How can I run the  ASIO transfer protocol?
>
> 73, Helmut
>
> *Von:*Hpsdr [mailto:hpsdr-bounces at lists.openhpsdr.org] *Im Auftrag von 
> *Anupam Prasad
> *Gesendet:* Sonntag, 29. November 2015 18:42
> *An:* hpsdr at lists.openhpsdr.org
> *Betreff:* Re: [hpsdr] Audio distortions during zoom/pan panadapter 
> display_2
>
> Dear Bert,
>
> The problem you have mentioned is perhaps due to the audio buffer 
> settings. However, there are ways that one can use to get rid of this 
> problem.
>
> 1. Try to use ASIO drivers. http://www.asio4all.com. Just download the 
> the driver and install. Choose the ASIOxxx driver as the audio output 
> device on the software. This will dramatically reduce the audio 
> latency at the same buffer size as compared to WDM drivers.
>
> 2. In case the problem still persists try increasing the audio buffer 
> size from the control panel of the asio driver. It will appear in the 
> bottom right side next to the sound /volume control icon. Please note 
> that the ASIO icon appears only when it is in use by a host program.Â
>
> 3. Best of luck. Do let me know if you have any doubts.
>
>
> 73,
>
> Anupam Prasad
>
> On 29 Nov 2015 9:57 pm, "Warren C. Pratt" <warren at wpratt.com 
> <mailto:warren at wpratt.com>> wrote:
>
> ***** High Performance Software Defined Radio Discussion List *****
>
>
> Hi Bert,
>
> Since you mentioned a "windows code writer", and I am one of them, I 
> thought I'd comment.  The bottom line is that I don't know what is 
> causing this problem.  It does sound like it's latency related in 
> some way.  I thought Bill's question about the mouse was a good one; 
> unfortunately, it's not clear that's the problem.  I recall seeing 
> posts in the past about how running a latency monitor resolved some 
> problem.  However, I don't believe it was this same problem.
>
> There is a different way that we can handle the software threads in 
> the PowerSDR application to ask for better control of priority from 
> the operating system. However, moving to that will require NOT 
> supporting XP any longer.  So, we're been waiting a little longer to 
> go that way.  I can't say whether that would help in this situation 
> or not.
>
> 73,
> Warren  NR0V
>
>
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