Manuel d'utilisation / d'entretien du produit PCM92 du fabricant Lexicon
Aller à la page of 62
.
IMPOR T ANT SAFETY INSTR UCTIONS W ARNING FOR Y OUR PRO TECTION READ THE FOLLO WING: KEEP THESE INSTR UCTIONS HEED ALL W ARNINGS FOLLO W ALL INSTRUCTIONS THE APP ARA TUS SHALL NO T BE EXPOSED T O DRIPPING OR SPLASHING LIQUID AND NO OBJECT FILLED WITHI LIQUID , SUCH AS V ASES, SHALL BE PLA CED ON THE APP ARA- TUS.
IMPOR T ANT SAFETY INSTR UCTIONS DECLARA TION OF CONFORMITY Manufacturer’ s Name: Lexicon ® Manufacturer’ s Address: 8760 S. Sandy Parkway Sandy , Utah 84070, USA declares that the product: Product name: Lexicon PCM 92 Note: Product name may be suffixed by the letters-EU.
W arranty This warranty is valid only for the original purchaser and only in the U nited S tates. If outside the U nited S tates please contact the local Lexicon ® distribu- tor . 1. The warrant y r egistrat ion card that accomp anies this produ ct mus t be mailed within 30 days after purchase date to validate this warranty .
INtRodUctIoN ................................................................... 1 the FRoNt P ANeL .............................................................. 3 the ReAR P ANeL ................................................................ 5 USING the PcM92 .
MIDI SysE x Implementation ........................................ 24 the ALGoRIthMS ................................................................ 27 Chamber (S tereo and Mono) ......................................... 27 Random Delay (Ster eo and M ono) .
1 INtRodUctIoN Congratulations and thank you for purchasing the PCM92 Reverb/M ulti Effects Pr ocessor! Building on the legendary design of the venerable PCM81 and PCM91, and the breakthr ough technology of the PCM96, Lexicon brings you the highly-anticipated PCM92 Stereo Reverb/E ffects P rocessor .
.
3 the FRoNt P ANeL 1. Gain LEDs Each pair of Gain LEDs indicate input signal strength of each of the PCM92’ s inputs. If the Audio Sour ce is set to Analog (in the Audio Setup menu), they show analog levels. If Audio Sour ce is set to Digital, they show digital levels.
4 9. BACK P ressing this button moves you up one level in the menu tree. N ote that when a System preset is loaded, this button takes you to the System M ode Category Selection menu. When a Machine preset is loaded, the Back but- ton takes you to the Machine M ode Category Selection menu.
5 the ReAR P ANeL 1. POWER JACK S tandard 3-pin IEC power connector . 100-240V , 50-60Hz automatic switching to correct voltage range. 2. ETHERNET INPUT This RJ-45 connection is used to network PCM92 devices and control them via E thernet.
6.
7 USING the PcM92 PoWeRING UP the PcM92 Plug in the power cord. 1. P ress the P ower button. 2. The Lexicon 3. ® logo appears, and remains until the boot process is com- plete. N ext, the Pr eset screen appears, showing the currently loaded pre- set.
8 SeLectING yoUR AUdIo SoURce ANd cLocK SoURce P ress the Machine button until the words “System View ” appear in the 1. Display . 1:ConcertHall->Flange (System View) 96 1:Single Stereo Config (System View) 48 P ress the Select knob . The System M enu appears.
9 System Pr esets and Machine P resets also have a U ser categor y , where you can access user-edited presets. Presets in the User categor y are stored on the PCM92. T o select a differ ent category F rom the Pr eset screen, press the Back button. The Category Selection 1.
10 N ote that pressing the Back button or the Select knob have different results depending on what kind of preset is loaded. The following diagram shows what happens when you press the Select knob, Back button, and Machine button in both System View and Machine View .
1 1 When a Machine P reset is loaded, the selected machine is highlighted in the Configuration icon, and three of the loaded preset’ s parameters appear at the bottom of the Display . 0:Med Hall 1:PreDelay :14ms 2:MidRT :1.59s 3:RvbOutFreq :4750.0Hz 0:Med Hall 1:PreDelay :14ms 2:ReverbTime :1.
12 StoRING A PReSet Once you ’ ve edited a preset, you can store it on the PCM92. F rom the Pr eset screen, press the Store button. The Save As screen 1. appears. Select Knob -> Change Position ʻAʼ Knob -> Change Letter Save As: Single Stereo Confi g T urn the Select knob to select a letter to change.
13 T urn the Select knob to choose a Machine Pr eset and press the Select 7. knob to load it. P ress the Machine Button to choose the next Machine Pr eset (if there is 8. one) and repeat steps 5 through 7. Repeat step 8 for each virtual machine in your System Pr eset.
14 dSP coNFIGURA tIoNS The PCM92 processor can be divided in up to four virtual machines, each of which can run its own algorithm. This lets you route signals from each input through a variety of algorithm combinations .
15 NetWoRKING This section provides a step-by-step guide on how to properly connect the PCM92 to a Local Area Networ k (LAN) for several different network archi- tectures. The first topology is a simple direct connection using the pro vided Ethernet cable.
1 6 SUbNet A small network within a larger network. For example, a T CP/IP network might be a subnet of a venue ’ s network, which could include computers throughout the building, or a network might be divided into subnets. For example, in a large installation, there may be one subnet per rack or room.
17 (such as the Internet). Instead of using a dedicated, r eal-world connection such as a leased line, a VPN uses virtual connections through the public network. The advantage to a VPN is that your computer can be virtually connected to a local network even though it is physically anywhere in the world where you have an internet connection.
18 If you fail to see a link light tr y removing and reinserting the cable or trying a different, known good, cable. Also, make sure that you are using the cor- rect cable. PING There is a simple utility built into OS-X that tests the network connection between two devices.
19 Clock Rate Sel ect your clock rate here , when the wor dclock sour ce is set to INTER NAL. Choose from 44.1H Kz, 48KHz, 88.2KHz , or 96KHz . Analog Setup The Analog Setup sub-menu lets you adjust the following parameters: Analog Input Level - Increases or decreases the incoming analog signal before it reaches the processor(s).
20 MAchINe coNFIG The Machine Config menu lets you configure the PCM92 processor as one, two, three, or four vir tual machines in a ne w preset. N ote that once you ’ ve selected a configuration, you must then populate each vir tual machine with a Machine Pr eset (see page 11 for more information).
21 T empo Source Sel ect INTERNAL to determi ne the tem po usi ng parameter s with in the PCM92, or MIDI to set the tempo using MIDI beat clock. Refer to your DA W ’ s manual to learn how to transmit this value. NetWoRK coNFIG Her e you can set the PCM92 Subnet Mask, IP Address, Gateway , and DHCP information.
22 USING MIdI The MIDI Control menu is where all MIDI related control is changed. See page 20 for information about the MIDI Control menu. MIdI IMPLeMeNt A tIoN The PCM92 offers MIDI implementation for use with external MIDI hard- ware and software controllers.
23 N ow the PCM92 unit is identified by the selected base channel, and virtual machines 1, 2, 3, and 4 within the PCM92 are identified by their respectiv e channels. chANNeL MAP (hoW chANNeLS MAP to MAchINeS) Channel U sage Description Base Channel S ystem Level U se for loading System presets.
24 bANK/PReSet MAP Bank P resets Bank # M ono Internal Flash B ank 1 M ono U ser Onboard Flash Categor y Presets 1 – 128 72 M ono Internal Flash B ank 2 M ono U ser Onboard Flash Categor y Presets 1.
25 coMMANd 1: PReSet dUMP This sysex is transmitted by a MIDI sequencer or by PCM92. The PCM92 may transmit this dump in response to a request or by means of a front-pan- el action. The PCM92 receiving this dump will store the encapsulated preset data in the designated location.
26.
27 the ALGoRIthMS chAMbeR (SteReo ANd MoNo) Chamber is a complex miniature-space effect resembling an echo chamber at its smaller settings and, at its larger ones, a small performance space with a more rapid build-up of reflection density than a hall.
28 Random Delays are similar to Simple Delays, but are especially useful for: • M ultitap T ape Loops F eedb ack can be used to recir culate delay s. Approp riate use of hi ghpass and lowp ass filters emula tes the ban dpass effect s of multi- generati onal tape loops (hiss not included).
29 RANdoM hALL (SteReo ANd MoNo) Random Hall is a hall effect with gradual build-up, well suited to complex sounds like orchestral music. Its reverberators change over time in controlled random ways to avoid the buildup of tinny , grainy , metallic, or other color- ations.
30 ReSoNANt choRdS (SteReo ANd MoNo) The Resonant Chord algorithm uses impulsive energy at the inputs to excite six resonant voices (notes). The level, pitch, duration, and high-frequency cutoff of the overtones for each voice are separately controllable.
31 round-robin. F or example, if MIDI note numbers are used to assign pitch, the resonators will constantly be re-tuned to the pitches of the last six MIDI notes receiv ed. (This can produce an effect similar to playing a piano with the sustain pedal depressed.
32.
33 the P ARAMeteRS The PCM92 contains hundreds of presets, co vering just about every possible need. But you can refine and customize any preset by adjusting its param- eters . P arameters are the building blocks within each preset that determine how it sounds and behaves.
34 Category (Room) This parameter lets you select a specific category from which a room response may be chosen. Changes here have a direct effect on the P attern Selector parameter . Chorus Depth (Concert Hall) This parameter controls the amount of randomization of the chorus tap.
35 The actual feedback level is modified by the Master Echo F eedback param- eter , if present. The master value is a percentage (0-100%) that is applied to the Echo F eedback level. Feedback Diffusion F eedback Diffusion is similar to Input Diffusion, except that it is applied to a delayed signal that is being added back into the input.
36 Master Reflection Delay (Reflection Time Master) Controls all reflection delays in the algorithm. Each reflection delay voice has its nominal delay time adjusted by this percentage. MidRT MidR T is the mid frequency rev erb time. As such, it is one of the primary controls affecting the length of the reverb tail.
37 Resonance Master Controls all voices in the algorithm. Each voice has its nominal resonance adjusted by this percentage. Resonance T uning Master Affects all voices in the algorithm. Each voice has its nominal resonance adjusted by this value. In the musical world, the tuning reference is A=440.
38 to bounce around. When the room size is small, the “ walls ” of this space are closer together and the resultant reflection density increases. When the room size is large, that density decreases.
39 Signal T ype Selects the type of signal to be created by the signal generator . The types of signal are: Sine W ave — When this is selected the signal frequency parameter is • used to control frequency . S weep U p — 20Hz to 20KHz sweep. When this is selected the signal • rate parameter is used to control rate.
40 T ype This parameter lets you configure a filter as any of 4 basic types, in order: Lowpass • Highpass • Bandpass • N otch (Band-r eject) • The filter provides a subset of filter types available to a Biquad filter . Wet Dry Mix W et D r y Mix is the proportion of wet (processed) signal to dr y (unpro- cessed) signal.
41 PcM92 MeNU NA vIGA tIoN MAP - SySteM vIeW ANd MAchINe vIeW.
42 PcM92 MeNU NA vIGA tIoN MAP - SteReo hALL ALGoRIthMS.
43 PcM92 MeNU NA vIGA tIoN MAP - SteReo chAMbeR ANd RooM ALGoRIthMS.
44 PcM92 MeNU NA vIGA tIoN MAP - SteReo deLA y ALGoRIthMS.
45 PcM92 MeNU NA vIGA tIoN MAP - SteReo eFFectS ALGoRIthMS.
46 PcM92 MeNU NA vIGA tIoN MAP - MoNo hALL ALGoRIthMS.
47 .
48 .
49 .
50.
51 PcM92 SPecIFIcA tIoNS ANALoG INPUtS Connectors T wo, F emale XLR Impedance 20K Ohm, balanced Level (for 0 dbFS) +4dBu mode: +20dBu –10dBV mode: 8.2dBu F req Response @96K 20Hz to 40KHz, +0/–3dB A/D Conversion 24 bits A/D Dyn Range >112 dB unweighted, 115dB A-weighted THD <.
52 cLocK JItteR Intrinsic Exceeds AES3 Amendment 1 J itter Gain Exceeds AES3 Amendment 1 coNtRoL INteRF AceS MIDI ** In/Out/Thru **supports program change ALGoRIthMS Chamber S tereo and Mono Random De.
53 dIMeNSIoNS Rack U nits 1U Size 19.0” W x 1.75” H x 12.5” D (483mm x 44.5mm x 317.5mm) W eight 8.65 lbs ReGULA toR y APPRov ALS FCC Class A CE EN55103-1, EN55103-2 UL UL1419 cUL C22.
54 MIdI IMPLeMeNt A tIoN chARt F unction T ransmitted Recognized Remarks Basic Channel Default Changed X X 1-16 X M ode Default M essages Altered X X X N/A X X N ote N umber T r ue V oice X X V elocit.
55.
Harman Music Group 8760 South Sandy P arkway | Sandy , U tah 84070 U.S.A. Phone: (801)-568-7660 | F ax: (801)-568-7662 PCM92 Questions or comments? Visit us online at www .
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Lexicon PCM92 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Lexicon PCM92 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Lexicon PCM92, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Lexicon PCM92 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Lexicon PCM92, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Lexicon PCM92.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Lexicon PCM92. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Lexicon PCM92 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
