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

[W4sc]

Doug,

I concurr/agree with/echo your comments 100%..... HPSDR is young and going 
through a few growing pains.

W4EFZ and I are building a portable system (radio, processor and ancillary 
equipment) that can be powered from a single 12-14 volt supply, without 
"breaking" the power budget.  We have determined what the pieces will be, 
except for the display, but we are "hot on the trail" for that solution 
too...

73 de Ben W4SC

----- Original Message ----- 
From: "Doug Bade" <kd8b at thebades.net>
To: "Ray J" <Ray at w9ray.org>; <hpsdr at hpsdr.org>
Sent: Monday, January 26, 2009 11:06 AM
Subject: Re: [hpsdr] Mercury v2.4 -- still distorted audio


> ***** High Performance Software Defined Radio Discussion List *****
>
> I guess I do not think a dual core hyper-threading 1.6ghz processor with 
> usb 2.0, 2gb ddr2 and a 566 FSB subsystem is severely limited.... it is 
> far more mips than my first PowerSDR computer...
>
> Especially in light of Phil Covington and others comments that it can do 
> the job fine if the code is optimized (as apparently some other code has 
> been) ....
>
> We can more often than not fix a processing problem by throwing more mips 
> at it, generating more heat and larger boards....   but it does not take 
> a 12 GA to hunt mice....although that works too....
>
> Some of us are looking for quasi embedded solutions and a 13w processor 
> on a 7x7 pcb looks really nice for field day... even if I have to trade 
> 192k/1024 or 96k/2048 for the luxury of not dragging my Q6600 quad core 
> box around.. so be it... but if some code optimization and/or bug-age can 
> be located and corrected.. I will be a happy camper... I own 3 Q6600 
> based computers, albeit tasked for other things, none of them is remotely 
> as portable as the Atom 330 box.. nor intended to be...
>
> It seems like the hardware is magnifying another issue.... not THE actual 
> issue...
>
> It sounds like we have a solution coming that will address other things 
> as well from comments I have seen on this thread.. I for one will be 
> quite content to wait until it happens.. and am NOT unhappy now. I guess 
> we all have different mission requirements....
>
> Doug
> KD8B
>
> At 11:08 PM 1/25/2009, Ray J wrote:
>>***** 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.
>
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