Friday, March 31, 2023

Stereo-Ssb Revisited (Yet Again)


















You may remember (from previous blogs on this topic) that at the heart of the Stereo-Ssb
process is a pair of tunable filters - ONE for EACH Ear.  For WQ6X, the preferred filter pair
is a pair of Autek QF-1A filters - ONE for EACH Ear. 
This is what has been written about Stereo-SSB thus far:
  • [X] - How Stereo-Cw becomes Stereo-Ssb
  • [X] - Stereo Ssb: It's STILL Easier than you Think
  • [X] - Stereo-SSB: Turns out There's More To It
Running 15-meters during the recent Weird Prefix (WPX) contest, the filter-pair provided the
ability to Peak-tune each ear independently.  This facilitates more-easily discerning different
English "accents" more readily.















While Stereo-Cw is about spacing signals of different pitch-frequencies around the Listening Experience, Stereo-Ssb is about improving speech intelligibility of a specific voice being copied. 
Similar to Stereo-Cw, the secret to Stereo-SSB is frequency separation.  With the FREQUENCY settings on both filters set more-or-less around MID-range, the speech will appear to originate
more-or-less from the middle of the listening experience.

By "moving" the voice to be copied to the "center" of the Listening Experience, properly done,
splatter is often experienced in the "outer reaches" of the Listening Experience.  Additionally,
adjusting the individual QF-1A selectivity knobs allows compensation for the frequency-response differences in each ear.

Have YOUI ever tried Stereo-Ssb?"

What Discoveries have YOU made?


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