[TenTec] speech processing idea

[Dr. Gerald N. Johnson]

On Thu, 2006-10-26 at 17:52 -0500, Byron J. Watts wrote:
> Ok first let me state that I've got a Tentec Omni D, so this is somewhat 
> related to this list.  I have a VST host program on this computer that 
> allows me to use a "hard" limiter on microphone audio in real time, it's 
> a wonderful tool, I can get probably 20db of limiting with no distortion 
> due to the look-ahead design.  it doesn't sound pretty, very 
> "compressed" as you can imagine, but there's no distortion.  I also have 
> a VST for a 5 band limiter for fm broadcast.  with some modifications it 
> could be band-limited to 300-3khz and be adjusted for SSB.  have any of 
> you ever used the most powerful processor you probably have in your 
> shack, the PC, to do your compression/equalization for you and then 
> interface the sound output into your rig?
> 
> KC0NPF, BJ
> 
> PS: I'm not a fan of highly compressed audio, it ONLY makes sense when 
> you can't quite get through.

Unfortunately the audio envelope isn't the RF envelope and severely
clipped audio results in peakier RF than unprocessed audio. Gives it a
splatter characteristic, so saith the book on SSB by Collins gurus,
Papenfus, Bruene, and Shoeneke.
-- 
73, Jerry, K0CQ,
All content copyright Dr. Gerald N. Johnson, electrical engineer