[Elecraft] RE: K3 speech processor (was Microphones (was electronic product standards))

2008-02-15 Thread Alan Bloom
What would be "nice" is for the speech processor to add variable
pre-emphasis that depends on the amount of compression AND still allow
you to use the equalizer to provide additional tailoring to your
individual voice.  That way you would only need one equalizer setting
that would work for all compression levels.

Al N1AL

On Fri, 2008-02-15 at 00:11, Gary Hvizdak wrote:
> Fri 15 Feb 2008 at 01:17:44 EST Alan Bloom wrote
> 
> I read years ago that speech processors like pre-emphasized audio
> (louder highs, quieter lows).  And the heavier the processing the more
> pre-emphasis is optimum.  Does anyone know if the K3 speech processor
> does that automatically?
> 
> --
> 
> Hi Alan,
> 
> According to the Owner's manual, the K3 has ...
> 
> 1. An RF speech processor which provides adjustable speech compression in dB
> (although it doesn't state the maximum compression).
> 
> 2. 8-Band TX audio graphic EQ +/- 16 dB/octave.
> 
> ... from the descriptions of these features I would "guess" that the answer
> to your question is, no it doesn't do that automatically.  However, the good
> news is that the sort of emphasis and de-emphasis you describe can be
> accomplished manually via the equalizer.
> 
>To "properly" do what you describe automatically would probably require
> factoring in your specific voice and microphone characteristics (probably by
> reciting a known phrase) and IMHO is way beyond the scope of what the K3
> firmware should do.  I think it would be better to perform this kind of
> processing via a PC sound card.
> 
>That said, I believe several users have already requested the ability to
> save multiple user preferences.  With such a capability you could tailor a
> few different equalizer profiles and (manually) provide a similar
> capability.  All you would have to do is to select the matching EQ profile
> as you change compression.  Hopefully this won't be the sort of thing that
> you will be changing frequently, and you will only have a few EQ profiles to
> choose from.
> 
> 73,
> Gary  KI4GGX
> K3 S/N TBD

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com


[Elecraft] RE: K3 speech processor (was Microphones (was electronic product standards))

2008-02-15 Thread Gary Hvizdak
Fri 15 Feb 2008 at 01:17:44 EST Alan Bloom wrote

I read years ago that speech processors like pre-emphasized audio
(louder highs, quieter lows).  And the heavier the processing the more
pre-emphasis is optimum.  Does anyone know if the K3 speech processor
does that automatically?

--

Hi Alan,

According to the Owner's manual, the K3 has ...

1. An RF speech processor which provides adjustable speech compression in dB
(although it doesn't state the maximum compression).

2. 8-Band TX audio graphic EQ +/- 16 dB/octave.

... from the descriptions of these features I would "guess" that the answer
to your question is, no it doesn't do that automatically.  However, the good
news is that the sort of emphasis and de-emphasis you describe can be
accomplished manually via the equalizer.

   To "properly" do what you describe automatically would probably require
factoring in your specific voice and microphone characteristics (probably by
reciting a known phrase) and IMHO is way beyond the scope of what the K3
firmware should do.  I think it would be better to perform this kind of
processing via a PC sound card.

   That said, I believe several users have already requested the ability to
save multiple user preferences.  With such a capability you could tailor a
few different equalizer profiles and (manually) provide a similar
capability.  All you would have to do is to select the matching EQ profile
as you change compression.  Hopefully this won't be the sort of thing that
you will be changing frequently, and you will only have a few EQ profiles to
choose from.

73,
Gary  KI4GGX
K3 S/N TBD

___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com