From the ini file in the 2.0 b1 version (which I just noticed makes shortcuts that say 2.0a2
)
[ambiance]
;Ambiance extraction works with ArcTan (or ArcTan + Slice)
;it routes "ambient" or "decoherent sound" around ArcTan to a virtual center rear channel
;Besides adjusting the "Amb Extraction" control in the Web Playback interface,
;you can use the "Flipped Surround" setting in the monitor mode dropdown (Surround, Original Stereo,
;2x2 Stereo, Flipped Surround) to isolate the ambient signal in the C channel (which can then be solo'd, etc.)
;"Flipped Surround" puts the C channel in a virtual rear center, LF in LS, RF in RS, and the virtual rear center (ambient) signal
;in C.
;
;Ambiance extraction gives an added depth to the surround field, but DOES NOT add any signal (ambiance or other) that wasn't
;there in the original stereo. It simply pulls it out of the surround field and routes it to a virtual rear (1/2 the signal
;sent to each rear channel).
;
;0 = no ambiance extraction
;1 = full ambiance extraction
;0 to 1 default 0
crossfade=0
;
; OK by popular demand there is now an option to add, vs. crossfade, the decoherent signal to the virtual center rear. When you use this
;option you are adding additional sound to change the original mix. Instead of the decoherent sound being routed AROUND arctan it will be
;left in arctan AND be routed to the virtual center rears
;
; crossfade (default) = any extracted signal is crossfaded between arctan and virtual rear center
; add = any extracted signal is added to the virtual rear center and is left in arctan as well
ambientmode=crossfade
So one way to turn it on is by changing the ini file (The program looks for ini files in this order:
1) an ini file with a name that matches your song file name
2) a SpecWeb.ini file in the same directory as our song(s) file
3) the SpecWeb.ini file in the \install\bin directory
)
In that way you can have different ini settings for different songs or directories.
Then there are command line options (which override ini settings):
-ex = Set Ambiance Extraction Amount (0 to 1 default 0.0).
-gx = Set Ambient Extraction Mode. 0 = crossfade, 1 = add (default crossfade)
So using the SpecWeb icon on your desktop when it asks you "Enter Options or hit return to accept all defaults" you could enter, for example:
-e0.85 -g1
)
