[hpsdr] audio sample rate

[Ari Þórólfur]

Hi Joe

My problem is I can´t go higher than 96000 sample/sec  , if I go higher I
get dropout
Buffer size is the highest or 2048
Why can't I use 192 or  384 as you can, that is my problem :(  and I like to
fix it .
Ari

-----Original Message-----
From: Joe Martin [mailto:k5so at k5so.com] 
Sent: sunnudagur, 20. desember 2015 19:20
To: Ari Þórólfur <ari at ice.is>
Cc: hpsdr at lists.openhpsdr.org
Subject: Re: [hpsdr] audio sample rate

Hi Ari, 

Current firmware and software versions support only 100T ethernet
connections, with a maximum sampling rate supported of 384,000 samples/sec.
The soon-to-be-released new protocol versions of firmware and software will
support 1000T (gigabit) ethernet connections with a maximum sampling rate of
1,536,000 samples/sec.  

If you are unable to use the current max rate of 384 ksps without audio
dropouts you might try different buffer size selections in the Setup > Audio
> Buffer Size menu.  I find that a buffer size of 1024 with 384 ksps wors
here without dropouts on the 200D, but the optimum value to use for the
buffer size will be computer system dependent.  

Also, if you have multiple processes running simultaneously with your
PowerSDR v3.3.6 you might check to see if closing some of those will help
the situation.  

73, Joe K5SO


On Dec 20, 2015, at 12:05 PM, Ari Þórólfur wrote:

> ***** High Performance Software Defined Radio Discussion List *****
> 
> Hi
> I am still learning
> 
> Now for long time I have use audio sample rate 96000 on my Anan 200D 
> If I go any higher I get dropout in audio My switch is 1gb full duplex 
> , PC and Anan go direct to the switch plus internet .
> My net card is 1 gb full duplex
> I have try lock it in 10mb 100 and 1 gb both half and full duplex No 
> change , I have buffer size the highest or 2048
> 
> If I try speedtest.net to internet I get more and less 1 gb in and out 
> to internet , have fiber internet.
> That tell me net card in my PC is working ok ? .
> I have taken gw information out in network info so my PC can only see 
> local net and still no change .
> CPU load as HPSDR show me is always under 8% load Using power SDR 
> 3.3.6 on 64bit PC and FW 4.0 Anan 200D So how can I run higher sample 
> rate higher  that 96000 ?
> What am I doing wrong ?
> Ari
> TF3ARI
> 
> 
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