JBL SYNTHESIS SDP-45 User Manual

JBL SYNTHESIS SDP-45 User Manual Manual pdf 59 page image

Dolby VolumeJBL SYNTHESIS SDP-45- 59 -DOLBY VOLUME/DRCDolby® Volume is an advanced digital signal processing technology for controlling playback volume. It evens out the volume level on everything youwatch, greatly improving your listening experience. No more sudden blasts from ads, no dialogue suddenly too soft, no volume differences when youchange channels or switch sources.BRINGING UP THE DOLBY VOLUME SCREEN:Pressing a down arrow key while the default (idle) screen is beingdisplayed brings up the Dolby Volume screen for a about 10 seconds.After 10 seconds the screen reverts back to default (or when the up orleft arrow is pressed).The screen shows only one active parameter selection line: Line 2: DYNRANGE FULL OFF This setting (power up default) indicates that thedynamic range is full, in other words - no dynamic range compression isengaged (DRC=OFF). A selection made using this screen will remainpersistent after the screen times-out back to the default display. TheDolby Volume/DRC selection will persist for as long as the source is notswitched over (for example from BLU-RAY to CBL/SAT etc) and as longas the unit is not powered off or placed into standby.DOLBY VOLUME MODESTurning a volume control knob or pressing the SURROUND MODE leftand right arrow keys causes the following selections to scroll in line 2:DYN RANGE FULL OFF - all dynamic range compression is off(power up default) and Dolby Volume is OFFDD VOL LOW FULL MODE - Dolby Volume is ON in low strength,and the audio dynamic range is slightly reduced. The ―Full Mode‖ (asopposed to ―Half Mode‖) means that Dolby Volume algorithm appliesboth audio compression and spectral equalization.DD VOL MED FULL MODE - Dolby Volume is ON, medium strength(dynamic range is moderately reduced). The ―Full Mode‖ means thatDolby Volume algorithm applies both audio compression andspectral equalization.DD VOL HIGH FULL MODE - Dolby Volume is ON, high strength(dynamic range is highly reduced). The ―Full Mode‖ means thatDolby Volume algorithm applies both audio compression andspectral equalization.DD VOL LOW HALF MODE - Dolby Volume is ON, low strength(dynamic range is slightly reduced). The ―Half Mode‖ (as opposed to―Full Mode‖) means that Dolby Volume algorithm applies only audiocompression but not spectral equalization.DD VOL MED HALF MODE - Dolby Volume is ON, medium strength(dynamic range is moderately reduced). The ―Half Mode‖ means thatDolby Volume algorithm applies only audio compression but notspectral equalization.DD VOL HIGH HALF MODE - Dolby Volume is ON, mediumstrength (dynamic range is moderately reduced). The ―Half Mode‖means that Dolby Volume algorithm applies only audio compressionbut not spectral equalization.DYN RANGE MEDIUM 1 – Dolby Volume is OFF but older DRCalgorithm (Dynamic Range Compression) is ON resulting in mediumdynamic range (moderate compression)DYN RANGE LOW 2 – Dolby Volume is OFF, DRC is ON producinglow dynamic range (high compression).DRC AUTO – Dolby Volume is OFF, DRC is ON, high compressionconditional upon the presence of DYNF flag in the digital sourcestream.