I think everyone understands that speech processing is a general category 
that may include, compression, equalization, and even sound effects such as 
a reverb.  In fact, I used to put some reverb on my voice back in the '60s.

Typically though, the "Speech processor" in a rig is a compressor.

Here's what the TS-590 manual says about the "Speech Processor":
The Speech Processor levels out large fluctuations in your voice while you
speak. When using SSB, AM, or FM mode, this leveling action effectively 
raises
the average TX power (SSB/AM) or raises the deviation to an adequate level
(FM), resulting in a more understandable signal. The amount of voice
compression is fully adjustable. Using the Speech Processor makes it easier 
to
be heard by distant stations.
--
Jim, KE5AL

-----Original Message----- 
From: Steve
Sent: Monday, August 25, 2014 12:33 PM
To: [log in to unmask]
Subject: Re: general question redux

Dave,

They are not identical.


Speech processing is at the Audio Frequency form and basically doesn't boost
the lower range as much as the lower-amplitude upper audio range is boosted,
this provides more punch.

Speech compression is a process that limits the peaks while boosting the
lower-levels to give a more constant output.


----- Original Message ----- 
From: "David Pearson" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, August 23, 2014 11:11 AM
Subject: general question redux


> Thanks for all answers, but to be more specific,I was referring to these
> items on a ts-590s, so according to Jim's answer, they're basically the
> same
> which begs the question of why they're given different names.  I'm not a
> "techno-person",so, I'll treat them as being equivalent for the purpose of
> hand mic audio set-up.
>
> 73,
>
>
>
> wa4dsp
>
>
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