[Elecraft] SSB voice auto-tune

[Hank Garretson]

As a hearing-challenged K3 operator, this is something I would love to see
(hear!).

73,

Hank, W6SX



2011/4/29 Eduardo González <edujoseg at gmail.com>

> It is feasible to implement SSB auto-clarifier (Spot function on SSB)
> on firmware of K3?
>
> I'm a researcher in Digital Signal Processing and based on the work of
> Robert Dick ("Tune SSB Automatically", Robert Dick, QEX, January 1999,
> pp 9-18), i wrote code to do auto-clarification in real time and tried
> other methods (see references below). I'm more theoretical than
> practical, so i don't have suficient expertise running DSP code on
> embeded systems. The code developed by me only run on PC system and
> perspective is great, auto clarification is running !
>
> Is there patent limits?
>
> DSP hardware of K3 is capable of do more than two FFT in cascading,
> Cepstrum, Smoothing.
> It would very nice just to press SPOT button, and get voice tuned, as
> do CW and AM-S. It will have limitations, but i think it would be
> nice.
>
> References:
> Please, check my paper "Methods of Carrier Frequency Recovery in
> SSB-SC Modulation to be applied in Portable Communication Equipments"
> http://redalyc.uaemex.mx/redalyc/pdf/707/70712302.pdf
> it explain set of methods that i have tested and last page have
> important references.
>
> Excuse my poor english.
>
> Eduardo González (YY4GMJ)
>
Elevation 8083 feet in John Muir's Range of Light