3Com CP-1 owner manual Stereo Logic, Pro Logic

				The Programs:
CP-1 Digital Audio Environment Processor				Surround
				Stereo Logic
		Parameter	Initial Value	Range
		FRONT EFFECT	8	0-16
		REAR EFFECT	8*	0-16
		REAR ROLLOFF	14.1 kHz	329 Hz-14.1 kHz
				Automatic
		BASS BLEND	0	0-16
		AUTO AZIMUTH/BAL	OFF	Off, On
		REAR DELAY	8 ms	0-32 ms
		REAR NOISE CHIP	OFF	Off, On
		CALIBRATE	OFF	Off, On
		SET PROGRAM NAME	NA	NA
		MEMORIZE PROGRAM	NA	NA
			* 0 if no rear speakers specified
				Pro Logic
		Parameter	Initial Value	Range
		REAR DELAY	20 ms	16-32 ms
		AUTO AZIMUTH/BAL	On	Off, On
		BASS BLEND	6	0-16
		CALIBRATE	Off	Off, On
		SET PROGRAM NAME	NA	NA
		MEMORIZE PROGRAM	NA	NA
REAR DELAY in both STEREO LOGIC and PRO LOGIC is adjustable.				Rear Delay
Generally, the correct delay is about 20 milliseconds but the setting depends
on speaker set-up and source material. In general, the delay should not be
so great that the rear sound becomes identifiable as a distinct source.
	REAR ROLLOFF controls the treble attenuation and should be adjusted on			Rear Rolloff
	music for maximum airiness and spatial realism without causing specific
	instruments to seem to come from behind you. Stereo Logic’s REAR
	ROLLOFF parameter contains an AUTOMATIC mode. In this mode the
	rear channels are rolled off above 7 kHz until the logic circuits steer a sound
	effect to the rear speakers, whereupon the bandwidth opens up to beyond
	15 kHz. This will enhance the realism of some effects that move from front
	to rear or vice-versa.

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