Lexicon Lexicon Part #070-13234 manuale d’uso

Lexicon Owner's Manual Software V4 Dolby Digital ® and DTS ® Version s DC-1 Digital Controller[...]

Lexicon Part #070-13234 Rev 1 Printed in the United States of America Save these i nstruct ions for later use. Follow all inst ructions and warnings marked on the unit. Always use with the correct line vo ltage. Refer to t he manufacturer's operating instructions for power requirements. Be advised that d ifferent ope rating voltages may requir[...]

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Die ses Dreieck auf Ihrem Apparat bedeutet daß wichtige Betriebs- und Wartungsanweisungen in der mitgelieferten Dokumentation zu finden sind. Die ses Dreieck au f I hrem App arat warnt Sie vo r nicht-isolierter, ge fä hr l i c he r S p an n un g im G eh ä us e .. . s ta r k ge n ug u m ei n e Berührungsgefahr darzustellen. Deutsch Wichtige S ic[...]

Contents Introduc tion 1 Installation Controls and Indicators ................. .................................... 1 The Front Panel ........................................................... 1 The Rear Panel ............................................................ 2 The Remote Control .. .......................................... ........ 3[...]

Lexicon Using DC-1 Effects .......................................................... 32 Customizing E ffects • Comparing a modified effect to the factory preset version • Restoring the original parameter values of an Effect • Naming your custom Effect • Restoring the original Effect Name • Listening to only the DC-1 Effect • Front/Back[...]

Introduction The DC-1 can be thought of as four units in one. At its heart is a reference- quality 8-channel music and film digital audio computer capable of creating or recreating a limitless amount of listening environments. This digital audio computer is mated to an 8-channel Digital-to-Analog converter that rivals the most exotic and costly sta[...]

Lexicon Using the Documentation Because the DC-1 is designed to be customized for your system and your listening space, the information required for installation is extensive. The Owner's Manual is designed to assist you in installing, calibrating and operating the DC-1. It should be used in conjunction with the remote control when configuring[...]

Effect An effect is a configuration that determines how the DC-1 will process an input signal. The DC-1 can contain as many as 24 effects: Panorama, Nightclub, Concert Hall, Church, Cathedral, Party, 2-Channel, Music Surround, Music Logic, Logic 7, TV Matrix, Pro Logic, THX Cinema, Mono Logic, 5.1 2- Channel, 5.1 Music, 5.1 Logic 7, Dolby Digital, [...]

1 DC-1 Version 4 Digital Controller Installation 1 Controls and Indicators The F ront Panel 1. ON/OFF ON/OFF alternately puts the DC-1 into and out of standby. Turning the DC-1 off with this button (or with the remote) de a c ti v a te s the un it whi l e leaving power to the signal processing circuitry to keep it at optimum operat ing tem- peratur[...]

Lexicon 2 Installation The Rear Panel CAUTION: Never make or break any connections to the DC-1 with the rear-panel power ON. Make sure any associated amplifiers are turned off before turning this master power switch on or off. 1 AUDIO INPUTS Eight stereo analog audio in- puts are switched with corre- spon ding video inputs and fed to the Monitor ou[...]

3 DC-1 Version 4 Digital Controller Installation The Remote Control 1 ON, FP and OSD ON turns the DC-1 on and selects the input last used with main and Zone 2 volume levels set to the levels cho- sen in the OUTPUT LEVELS menu. FP ( ON) turns on the front panel display backlight and the Lexicon logo. OSD (ON) activates the DC-1 on-screen display. 2 [...]

Lexicon 4 Installation Alternate Remote Con tr ol Functions Using the Shift and Record/Zone 2 buttons You can access an additional set of controls with the DC-1 remote control by using the Shift key.[...]

5 DC-1 Version 4 Digital Controller Installation Zone 2 controls are accessed by holding down the Record/Zone 2 button.[...]

Lexicon 6 Installation Connection Location Considerations The DC-1 is a highly specialized signal processing computer and requires special care during installation to ensure optimum performance. The DC-1 may be installed on a shelf or in a standard 19" equipment rack, using an optional rack-mount kit available from Lexicon dealers. Observe the[...]

7 DC-1 Version 4 Digital Controller Installation Wiring Considerations There is debate over the audible effects of different types of interconnects. Good engineering practices have minimized the effect that cables might have on the inputs and outputs of the DC-1 — but feel free to evaluate different interconnects in your system. Be conscious, how[...]

Lexicon 8 Installation Input sources should be connected directly to the DC-1 inputs. Since TAPE, TUNER and CD are audio only, the video output will default to the video signal from VCR1. This allows TV or other video source viewing while different audio is playing, but can be changed in the INPUT CONFIG menu. Connect your main stereo amplifier to [...]

9 DC-1 Version 4 Digital Controller Installation The DC-1 has five composite and three S-Video inputs. Connection to an S- Video input will override the composite signal connected via the RCA-type connector. Note that an S-Video input will be output on both the composite and S-Video outputs. Composite input signals will not be output as S-Video. Yo[...]

11 DC-1 Version 4 Digital Controller System Configuration 2 System Configuration Restore Factory Defaults Although the DC-1 memory is cleared before it leaves the factory, it is good practice to restore the factory defaults with the following procedure before system configuration. Turn the DC-1 OFF with the remote control. Turn the unit back ON and[...]

Lexicon 12 System Configuration The Tilt parameter can be thought of as a straight line that pivots on a fulcrum at 1kHz to correct the overall tonal balance of source material. The range is -3.0dB to +3.0dB, referenced to the Treble level. This control, adjustable in 0.2dB increments, is useful on many older recordings, or when the desired tonal b[...]

13 DC-1 Version 4 Digital Controller System Configuration Display Adjustment To adjust contrast, use SELECT to highlight CONTRAST ADJUSTMENT, and ▲ or ▼ to set the contrast of the display to its maximum as seen from your listening position. Depending on the location of the DC-1 in your room, you may need to adjust the front panel display contra[...]

Lexicon 14 System Configuration Video Input Selection and the On-Screen Display When using the Video M onitor output with the On-Screen Dis- play, the DC-1 automatically puts up a blue or grey background when no video signal is present. Occasionally, an incoming video signal m ay be so weak that it is recognized as essentially no sig- nal, trig ger[...]

15 DC-1 Version 4 Digital Controller System Configuration Input Configuration The DC-1 has eight inputs, each of which can be associated with any of the five video and eight digital audio inputs. Selecting Input Configuration from the Setup menu displays a sub-menu which lists these inputs and allows you to select them individually for adjustment. [...]

Lexicon 16 System Configuration The input level meters are displayed when you select the GAIN parameter for an ac t i ve input which has been selected in the Setup menu. When GAIN is selected, two on-screen horizontal bar meters display peak incoming signal level. The highest peak level is shown in dB in a separate text line, and as an arrow in the[...]

17 DC-1 Version 4 Digital Controller System Configuration The DC-1 can also be set up to automatically switch to an appropriate effect whenever PCM, AC-3 or DTS encoded material is detected at the input. This allows one input to be used for different formats. For example, in the factory default state, the V-DISC input will automatically load the ap[...]

Lexicon 18 System Configuration * As the DC-1 is in AUTOMATIC mode, there may be a brief burst of noise before normal playback begins. The DC-1 V-DISC input is selected. A movie encoded in Dolby Surround is put in the laser disc player and starts to play. The LDD-1 recognizes that the movie is not AC-3 encoded, and automatically routes the laser di[...]

19 DC-1 Version 4 Digital Controller System Configuration PCM Only NOTE : PCM ONLY is automat i- cal ly sel ected for an inpu t when - ever ANALOG is selected as the AUDIO IN sett ing, as AC-3 and DTS effect s are incom pat- ible with analog inputs. If PCM ONLY is selected as the FX FORMAT for a given input, only PCM effects in the DC-1 can be used[...]

Lexicon 20 System Configuration NOTE: S-Video input signals will be output on both the composite and S-Video jacks. However, if you are only connecting to the monitor via the S-Video output, composi te vide o input sources will not be displayed. Video In This option in the INPUT CONFIG menu determines which audio input connector on the DC-1 rear pa[...]

21 DC-1 Version 4 Digital Controller System Configuration Record/Zone 2 The DC-1 is designed to be the control center of any system. As such, there are separate outputs for easy integration of external recording devices as well as an additional “zone” in multi-room installations. The Record and Zone 2 outputs on the DC-1 are wired in parallel s[...]

Lexicon 22 System Configuration Zone 2 volume on to the value selected in the OUTPUT LEVELS menu and engages full mute in the main zone. OFF Turns off the Zone 2 outputs, and the associated front panel LEDs. OSD (ON) Displays a STATUS menu for the current input. Press Done to exit. VOL ▲ and ▼ Displays, then adjusts the current Zone 2 volume le[...]

23 DC-1 Version 4 Digital Controller System Configuration Speaker Configuration Select LARGE for full-range front speakers to deliver full frequency re- sponse to the front left and right outputs. Selecting SMALL activates a 12dB per octave highpass filter and automatically routes low frequency informa- tion to the subwoofer output. Choices of 40, [...]

Lexicon 24 System Configuration Sides Rears Center Systems that utilize a full-range center speaker should select LARGE to direct center information to the center output with a full frequency re- sponse. Select SMALL for installations where the center speaker is smaller than the left and right front speakers. This will automatically engage the Bass[...]

25 DC-1 Version 4 Digital Controller System Configuration Subwoofer Frequency Response The low pass filter attenuates high fre- quencies at 24dB per octave. The values given are for the 6dB point. Subwoofer Output Use of the subwoofer output is specified here. Selecting YES, then pressing SELECT allows you to display and adjust the crossover freque[...]

Lexicon 26 System Configuration Note on External Noise Calibration Select INTERNAL NOISE TEST or EXTERNAL NOISE TEST from the Output Levels menu. The INTERNAL NOISE TEST automatically disconnects all audio and video inputs, disables any EQ functions, centers the Balance controls, and sets the system volume to +00dB. The test signal circles the room[...]

27 DC-1 Version 4 Digital Controller System Configuration Subw oofer Peak Limiter The DC-1 provides a Subwoofer Peak Limiter that prevents the subwoofer signal level from exceeding a preset value. The limit is factory preset to a level of +15dB. This setting can be changed within the limiter’s operating range of -5dB to +35dB, with -5dB providing[...]

Lexicon 28 System Configuration Speake r Distance The Listener Position menu is used for setting the surround and center delays and calibrating the Panorama effect. Setting Listener Position Mute Level Power On Volume Zone 2 Power On Volume This menu allows you to set the level of attenuation used whenever the DC-1 MUTE function is engaged. In the [...]

29 DC-1 Version 4 Digital Controller System Configuration Once you have entered the distance to the nearest speaker, the DC-1 will automatically calculate the maximum allowable distance. The display will show all of the speakers, each with a default distance setting equal to your nearest speaker. Use SELECT and ▲ and ▼ to highlight and enter ac[...]

Lexicon 30 System Configuration When calibrating right, if your left ear is in the silent band, the speaker angle is correct. If the two silent bands are too close, lower the Speaker Angle; if they are too far apart, raise the Speaker Angle. Move your head from side to side to find the position where the noise is full left, and the right ear hears [...]

31 DC-1 Version 4 Digital Controller System Configuration This control allows you to adjust the left/right balance of the front, side and rear main outputs. This control can also be accessed on the remote by pressing and holding the Shift button and using DONE to move to the left, and SELECT to move to the right. This control allows you to adjust t[...]

Lexicon 32 System Configuration Using DC -1 Eff ects Customizing Effects When EFFECT ADJUST is selected from the Main menu, the on-screen display shows a list of parameters specific to the current effect, as well as the current value of each parameter. (The front panel display shows one parameter at a time). Use the ▲ and ▼ buttons to move thro[...]

33 DC-1 Version 4 Digital Controller System Configuration The RESTORE PARAMETERS function allows you restore the currently selected Effect to its factory preset state. When you select this function, you will be prompted to reconsider erasing your changes. — If you don’t want to erase your versions, press DONE to exit the menu. Pressing SELECT i[...]

35 DC-1 Version 4 Digital Controller PCM Effects and Parameters 3 Panorama PCM Effects and Parameters Parameter Initial Value Range INPUT BALANC E (Centered) Full Left-Full Right CENTER LEV EL 4 0-15 REAR ROLLOFF 4.9kHz 453Hz-20.0kHz REAR DELAY 10ms 0-32ms SURROUND LEVEL 12 0-32 BASS CONTENT MONO STEREO, MONO, BINAURAL LOW FREQ WIDTH 0 -25 to +25 S[...]

36 Lexicon PCM Effects and Parameters The Church Effect uses a reverberation algorithm, which differs from ambience in that it does not simulate the reflections of specific halls, but emphasizes rich, smooth reverberant decay in small and medium spaces. It works well for simulating a space with a long reverberation time relative to its size, such a[...]

37 DC-1 Version 4 Digital Controller PCM Effects and Parameters Party The Party effect allows unprocessed stereo signals to be played over all speakers for background music or for maximum acoustical output of the system. Parameter Initial Value Range CENTER LEV EL 15 0-15 SIDE LEVEL + 00dB OFF, -30dB to +05dB REAR LE VEL +00dB OFF, -30dB to +05dB S[...]

38 Lexicon PCM Effects and Parameters Music Logic is a surround effect developed specifically for music listening. It makes full use of additional loudspeakers placed at the center, sides and rear of the room and provides a slight amount of steering for the front channels. Parameter Initial Value Range CENTER LEV EL 16 0-30 VOCAL ENH ANCE +3.0dB +0[...]

39 DC-1 Version 4 Digital Controller PCM Effects and Parameters The TV Matrix effect provides surround effects for television viewing of monaural, stereo, and stereo synthesized programs. Parameter Initial Value Range AUTO AZIMUTH ON ON/OF F VOCAL ENH ANCE +3.0dB 0.0dB, +3.0dB, +6.0dB FRONT STEERING M USIC OF F, MUSIC, FILM RE-EQUALIZER OFF ON/OFF [...]

40 Lexicon PCM Effects and Parameters 5 SPEAKER ENHANCE simulates 7 speaker playback through a 5 speaker system, providing a heightened sense of spaciousness and envelopment without extra speakers. This enhancement is most noticeable if the sur- round speakers are positioned directly to the side of the listening position, or if the listening positi[...]

41 DC-1 Version 4 Digital Controller PCM Effects and Parameters Note that results will vary depending on room acoustics and the low frequency capacity of the surround speakers. As side and/or rear speakers are used for bass enhancement, the effectiveness is improved with speakers capable of reproducing low frequencies (LARGE). Using speakers that a[...]

42 Lexicon PCM Effects and Parameters LIVENESS adjusts the amount of recirculation within the effect. Higher values mimic more reflective surfaces in the simulated space and increase the amount of time it takes the sound to decay. At very high values, the decay is audibly less smooth than in the Church and Cathedral Effects, which are more effectiv[...]

43 DC-1 Version 4 Digital Controller PCM Effects and Parameters REAR DELAY OFFSET is an additional delay added to the rear channels. This delay increases the apparent size of the listening space by increasing the rear delay time. Feel free to experiment to find the setting that works best. REAR LEVEL controls the volume level of the rear speakers. [...]

44 Lexicon PCM Effects and Parameters component of the input to the effect is reduced while the stereo component is increased. If the input signal is pure monaural speech the reverb is almost entirely attenuated. SPEECH DETECT is a real benefit to some popular music (where spoken voice, such as rap, occurs along with the music), stereo television a[...]

45 DC-1 Version 4 Digital Controller AC-3 Effects and Parameters 4 AC-3 Status Display AC-3 Effects and Parameters AC-3 effects are compatible with Dolby Digital input signals. Any AC-3- capable software and/or source components should be labeled with aDolby Digital badge, similar to the one on the DC-1 front panel. In the AC-3 effects, an AC-3 Sta[...]

46 Lexicon AC-3 Effects and Parameters Parameter Initial Value Range AC-3 STATUS (display only — not user adjustable) COMPRESSION OFF AU TO, ON, O FF RE-EQUALIZER OFF ON, OFF BASS ENHANCE OFF ON, OFF REAR DLY OFFSET 5ms 0- 20ms SIDE LEVEL + 00dB OFF, -30dB to +05dB REAR LEVEL +00dB OFF, -30dB to +05dB LFE MIX LEVEL +0.0dB -10 .0dB to +0.0dB SUBW [...]

47 DC-1 Version 4 Digital Controller AC-3 Effects and Parameters 5.1 Logic 7 5.1 Logic 7 combines all the features of Dolby Digital AC-3 with enhance- ments by Lexicon and LucasFilm. This effect uses Logic 7 matrix technology to enhance the steering between the side speakers and the rear speakers, so sounds intended to come from behind the listener[...]

48 Lexicon AC-3 Effects and Parameters AC-3 STATUS displays the current status of incoming AC-3 data. The displayed items are not user adjustable. BASS ENHANCE derives stereo bass to provide low frequencies that are noticeably less localizable and more spacious in the playback room. Note that results will vary depending on room acoustics and the lo[...]

49 DC-1 Version 4 Digital Controller AC-3 Effects and Parameters COMPRESSION enhances the intelligibility of Dolby Digital material at low volume levels (-6dB or lower). When set to AUTO, this control auto- matically limits peak signals and boosts low level signals. The amount of compression increases proportionately as volume is decreased. This is[...]

50 Lexicon AC-3 Effects and Parameters SURROUND EX (available as of software version 4) extracts and repro- duces the additional rear channel mixed into SURROUND EX encoded soundtracks. This parameter is automatically set to ON when both SIDE and REAR speakers are selected in the SPEAKER CONFIGURATION menu, and will not operate unless SIDE and REAR[...]

51 DC-1 Version 4 Digital Controller DTS Eff ects an d Parameters 5 DTS Eff ects and Parameters Parameter Initial Value Range CENTER MIX 16 0-30 SURROUND MIX +2dB -5 to +5dB CENTER DLY S AMPLES 0 - 127 to +127 MASTER LEVEL +5dB -5d B to +5dB LFE MIX LEVEL +0.0dB -20 .0dB to +0.0dB SUBW OOFER LVL +00dB OFF, -30dB to +05dB CUSTOM DTS effects are comp[...]

52 Lexicon DTS Eff ects an d Parameters DTS Logi c 7 DTS Logic 7 combines all the features of DTS Digital with enhancements by Lexicon and LucasFilm. This effect uses Logic 7 matrix technology to enhance the steering between the side speakers and the rear speakers, so sounds intended to come from behind the listener actually do come from behind. Th[...]

53 DC-1 Version 4 Digital Controller DTS Eff ects an d Parameters Parameter Initial Value Range SURROUND EX (V4 o nly) ON ON, OFF RE-EQUALIZER ON ON, OFF LFE MIX LEVEL +0.0dB -20.0dB to 0.0dB SUBW OOFER LVL + 00dB OFF, -30dB to +05dB CUSTOM This effect provides THX 5.1 Cinema enhancements for film soundtracks recorded in the DTS format. This proces[...]

54 Lexicon DTS Eff ects an d Parameters RE-EQUALIZER equalizes the left, center, and right channel outputs to match the overall frequency balance of the original recording. Without this re-equalization, many films and some television programs will sound too bright. REAR DELAY OFFSET is an additional delay added to the rear channels when listening t[...]

55 DC-1 Version 4 Digital Controller Troubleshooting Troubleshooting 6 T roubleshooting If you encounter a problem, please review the items in the following checklist. Also be sure to thoroughly check all other connected components such as speakers, receiver/amplifier/preamp, VCR, TV, CD player, etc. Problem Possible Cause and Solution Power does n[...]

56 Lexicon Troubleshooting Problem Possible Cause and Solution Hum Finding and eliminating audio hum in a complex installation can be a very frustrating task. Often, the easiest way to identify the culprit(s) is to systematically eliminate devices from the audio chain. If Cable TV is connected to any component in the system, start by unplugging the[...]

57 DC-1 Version 4 Digital Controller Troubleshooting Routine Maintenance Other than occasional replacement of the batteries in the remote control, the DC-1 requires minimal maintenance. Use a soft, lint-free cloth slightly dampened with warm water to clean the exterior surfaces of the unit. Do not use alcohol, benzene or acetone-based cleaners or a[...]

59 DC-1 Version 4 Digital Controller Specifications 7 Specificati ons S pecifications Inputs: Audio: 8 stereo (RCA) pairs Video: 5 composite (RCA), 3 S-Video Digital: 4: 2 coaxial (RCA), 2 optical (TosLink) conforms to IEC-958, S/PDIF standards Outputs: Audio: 8 outputs:Left, Center, Right, L&R Sides, L&R Rears, Subwoofer (RCA) Video: 2 com[...]

Installation Worksheet Model/Serial #________/____________ Installed by________________________________Phone____________________Date______________ OSD Position: ■ bottom ■ center ■ top Status: ■ always on ■ 2 sec. time out ■ always off Calibrate Panorama Speaker Listener Angle _______° Listener Position ____________ Inputs VCR Gain ___[...]