Hello Mike,
just for sure, have you checked, that your sound card doesn't use equalising
settings?
Some soundcards do have this possibility and in my PC serviceman career I have
seen many times, that people complained for audio quality in Skype and finaly
they had switched some DSP effects, like "bathroom" on. Typicaly it was Realtek
HD audio.. But some other have this functionality too. (If not using USB
dongle. :-)
If not and you have this possibility, it could solve your issue a bit, because
you could create some own profile and use equaliser and W-mtr to calibrate all
subaudioband to one power level (using tune button and clicking by watterfall).
Of course not as great as you suggest, but can help a bit.
See my IDT audio panel:
73 Libor
----- Original Message -----
From: "Bill Somerville" <[email protected]>
To: <[email protected]>
Sent: Friday, January 26, 2018 11:49 AM
Subject: Re: [wsjt-devel] tx audio equalisation, just a thought.
> On 26/01/2018 10:28, Peter Sumner wrote:
>> Hello Mike,
>> can you offer some URL's as I have exhausted my google searches for
>> both of those suggestions... all I get is topic about fishing for rig
>> split and fake it gives me pages of topics about the US president and
>> his fake news. have tried various other combinations but as I do not
>> know what they are meant to do it is hard to refine the searches.
>>
>> Peter.
>
> Hi Peter,
>
> I think Mike may have missed that you are using EME on the microwave
> bands. The facility he suggests is only appropriate and available for
> the narrower modes used commonly on HF.
>
> With respect to your original request, I do see some merits but
> profiling your Tx pass band characteristics for a mode like QRA64
> although it is quite tricky given the number of frequencies that need
> calibration. The implementation would not be too hard as a simple table
> of factors would be mapped to each tone frequency within the digital
> audio synthesizer, OTOH the work to implement a maintenance facility for
> the correction factors would be considerable and I doubt considered
> worth the payback. Also modern rigs are dealing with this more
> fundamentally by providing SSB-DATA modes tailored for AFSK operation
> which have very flat pass band characteristics.
>
> 73
> Bill
> G4WJS.
>
>
> ------------------------------------------------------------------------------
> Check out the vibrant tech community on one of the world's most
> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> _______________________________________________
> wsjt-devel mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/wsjt-devel
>
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________
wsjt-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/wsjt-devel
