Message-Id: <20050210185925.TRJO2048.imf19aec.mail.bellsouth.net@[68.212.105.213]>

Anthony wrote:
   >Would you mind telling me how a processor works.
   >In other words what happens if you introduce more processing into
   >your audio?
MOst processors in ham gear are actually compressors.  What they do is
bring up the softer parts and maybe back off the peaks, when set
properly.  HOwever I find some weaknesses with compression for ssb
audio.

FIrst and foremost, a lot of guys with noisy shacks (amplifiers within
the pickup pattern of the mic with noisy fans) don't have the most
stellar audio because of the fan noise. SAme could be said of computer
fans and other extraneous noises.
THe compressor is helping bring up the softer sounds which the mic can
hear which means that it thinks the fan noise should also be
amplified.

AS an audio professional I'd rather have a compressor where I can
adjust more parameters.  COmpressors are used frequently on some of
your favorite music.  THe voice-over for that car dealer's commercial
are run through a compressor as well.  HOwever these compressors have
more adjustable parameters than the processors in our hf gear.

THis is a pretty deep subject technically for a man who['s just gotten
home from work and had a couple of shots of bourbon but I can tell you
that on many rigs I like the sound of the audio better without the
compressor engaged.  However when set properly with a little attention
to your operating environment they can do wonders for making you
intelligible  Btw not a fan of some of the so-called audiophiles who
are using regular studio gear including compressors instead of those
built into their radios.  OFten times they are too wide and dirty with
their audio.  IF your processor is adjustable from the front panel
remember that a little goes a long way.

I find that on some of the older Icom HF transceivers the compressor
does actually do one some good.  on many Kenwood rigs it seems to
depend on the operator, his environment and choice of microphone.

IF you're looking for honest audio reports be sure to ask on 14.3 the
maritime mobile service net.  IF the processor is hurting the sound of
your audio there is always one guy on freq or more who'll tell you the
honest unvarnished truth.  IF I'm testing a new to mne setup or rig
I'll always ask there before even the traffic nets.

73 de nf5b





Richard Webb

Electric Spider Productions
                                            "They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety."

--- Benjamin Franklin, NOvember 1755 from the
Historical review of Pennsylvania