[hpsdr] Mercury v2.4 -- still distorted audio

[W4sc]

Your comment is a suprise to me.  W4EFZ and I have run concurrently 
Spectravue-SDR-IQ  and PowerSDR-Mecury at  AND cruise the big wire at the 
same time with no problems..... what is NOT installed is a bunch of 
security s/w.  Our next addition to the CPU/system load will be to dump 
from Spectravue to external USB connected drive the band data...and if this 
doesn't  "break it", we will find something else tack on...No we don't want 
"bench marks" to run , our little experiment comes from the a users 
perspective,, what one would do/can accomplish with this plaform in a real 
world scenario.

de Ben W4SC

----- Original Message ----- 
From: "Ray J" <Ray at w9ray.org>
To: <hpsdr at hpsdr.org>
Sent: Sunday, January 25, 2009 11:08 PM
Subject: Re: [hpsdr] Mercury v2.4 -- still distorted audio


> ***** High Performance Software Defined Radio Discussion List *****
>
> Why is this so surprising to people....... you are trying to use such a 
> severely limited computer to run real time software/hardware.
>
>  its pretty well proven you need 3ghz P4 or better to run powersdr at 
> higher sample rates.. even more important that you are not using a shared 
> (compromised) usb or firewire buss.
>
>  the Atom processors so far are made to run overpowered PDAs and tiny 
> laptops, not realtime data processing computers.
>
>
>
>
>> ***** High Performance Software Defined Radio Discussion List *****
>>
>> YouIt is not limited to HPSDR and Mercury,  the instability is also 
>> present in F5K (firewire interface) with 192000 and just one more 
>> serious piece of processing turned on, such as ANF or NR.
>> All of this will be dealt with in dramatic fashion shortly.  Use it at 
>> 96000 for now but there are no excuses.  This should be a cakewalk for 
>> the Atom at 192000 and there is a way to make this much easier on the 
>> computer.
>>
>> QR
>>>
>>>     Have you tried reducing the dsp scan bandwidth from 192k to 96k???
>>>     My cpu board USB subsystem will not support 192k @2048... I need
>>>     to reduce to 192k at 1024, or 96k at 2048...
>>>
>>>     What I hear sounds like what you are describing....
>>>
>>>     Just a thought...
>>>
>>>     Doug
>>>     KD8B
>>>
>>>
>>
>
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