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Viscount

Chorum

User Manual

VERIFYING THE OPERATING SYSTEM VERSION (SYS. INFO function)

Use this function to verify the release of the operating system currently running on your instrument, then look
for available updates on the website www.viscountinstruments.com. To do so, select the

SYSTEM

field on the

display under the SETTINGS menu:

now select the

SYS.INFO

field:

The

RELEASE

field indicates the currently installed version, and the organ model is displayed below. Press

[EXIT] to return to the previous page.

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Summary of Contents for chorum 20

Page 1: ...viscount User Manual English Ver EU 1 0 Chorum ...

Page 2: ...uch as radiators heat registers stoves or other apparatus including amplifiers that produces heat 9 Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wider blade or the third prong are provided for your safety If the provided plug does not fit in...

Page 3: ...gs Factory Settings function 26 5 10 Upgrading the operating system Op Sys Upgrade function 27 6 Programming organ styles Style menu 30 6 1 Adjusting the tremulants Tremulants function 31 6 2 Regulating the volume of each voice Voices Volumes function 31 6 3 Selecting the orchestral voices Orchestra function 32 7 Saving the organ configuration to files File menu 33 7 1 Informations concerning the ...

Page 4: ...mplification and diffusion systems you are about to connect are switched off This will prevent noisy or even dangerous signal peaks Connect the net cable to an earthed socket Check that the voltage corresponds to the voltage shown on the serial number plate of the organ If the organ is to be out of use for lengthy periods disconnect the plug from the power socket 1 2 NOTES ABOUT THE MANUAL Take go...

Page 5: ...R refers to the ENTER button Illustrations and screens showed are for information purposes only and may differ from your product The instructions provided in this manual only concern the instrument s operating system version that was up to date when the document was released Therefore such instructions might not describe faithfully your current operating system release Please visit the website www...

Page 6: ...4 Viscount Chorum User Manual Chorum 90 2 GENERAL DESCRIPTION 23 21 22 7 12 20 18 17 6 2 3 4 14 7 9 15 8 13 7 10 11 19 16 15 12 1 ...

Page 7: ...5 Viscount Chorum User Manual Chorum 60 23 7 12 20 18 17 6 1 4 14 7 7 19 5 2 8 13 10 11 16 15 12 15 21 22 ...

Page 8: ...6 Viscount Chorum User Manual Chorum 50 viscount 23 7 12 20 18 17 1 4 5 20 19 2 14 13 7 16 15 21 22 12 6 15 ...

Page 9: ...7 Viscount Chorum User Manual Chorum 40 23 18 17 1 4 19 2 14 13 7 16 15 12 6 22 15 ...

Page 10: ...8 Viscount Chorum User Manual Chorum 20 6 17 15 15 23 18 1 4 19 2 14 13 7 16 12 22 ...

Page 11: ...nloaded from the website www viscountinstruments com The document contains the list for each model of the series 6 Power switch Instrument on off switch 7 General combinations 1 6 pistons to recall the combinations saved in the selected memory bank see PREV NEXT point These combinations can be modified To do so follow the procedure described at point 13 HR restores the voice setup prepared in manu...

Page 12: ... and hold the S piston then press the piston corresponding to the combination you wish to save To save a Crescendo step select it through the Crescendo pedal press and hold S and then press the general memories HR piston To copy the content of one step to another first select the step you wish to copy then press and hold the S piston select the step in which you wish to paste the content and final...

Page 13: ...ruments SEQUENC access the video pages for the use of the internal sequencer of the instrument FIELD S e FIELD T buttons used to move the cursor identified by the field in reverse FIELD S moves it in the field above or the previous field FIELD T in the field below or the next field VALUE e VALUE buttons which regulate the values of the parameters whether they are numerical or alphanumerical VALUE ...

Page 14: ...model and its number of manuals MAN III continuous control of Man III volume MAN II continuous control of Man II volume MAN I continuous control of Man I volume MAN I PEDAL continuous control of Man I and pedalboard volume at the same time The MAN I PEDAL pedal works also as Crescendo pedal For further information about this function read chapt 5 One of the pedals is actually equipped with a lever...

Page 15: ... indicated as the frequency of A3 an 8 pipe o TEMPER Temperament selector for setting historical temperaments of various periods for a description of temperaments see par 10 2 and 10 3 Here as in all video pages use the FIELD S and FIELD T buttons to move the cursor When selected by the cursor fields invert colour 3 SWITCHING ON AND MAIN VIDEO PAGE Models with two expression pedals and the CRESCEN...

Page 16: ...ppear As in the main video page the cursor is represented by the field with inverted colours To move it press the buttons FIELD S and FIELD T Here and in all the following video pages some fields are used to access different pages Select one of these fields and press the ENTER button to access the corresponding page when these fields are selected the name of the button appears on the right side of...

Page 17: ...ory the procedure is explained in chapter 7 o DEMO the instrument plays a demo song This function is described in par 10 1 The Chorum organs allow the user to adjust all the volumes in order to obtain a perfect sound balance among the sections and between internal and external amplifications To visualize the volume screen press the VOLUMES button Three manual models Two manual models o PED Pedal p...

Page 18: ...version select YES to invert keyboards as a consequence three manual models Choir stops are played with the second manual Great stops are played with the first manual two manual models Great stops are played with the second manual and Swell stops are played with the first manual To deactivate the function select NO o SHORT OCTAVE select YES to activate the short octave on the first octave of pedal...

Page 19: ...ve the SETTINGS menu press EXIT 5 1 SELECTING REVERB TYPE REVERB parameter Reverberation is the result of a series of sound reflections in a closed environment Order and value of each reflection depend on many factors of the environment such as the size of the room the number and material of the objects inside the room the listener s position and so on The digital processors of the Chorum organs c...

Page 20: ...the internal speakers o OUT 1 graphic equalizer for the OUT 1 output pair on the rear panel o OUT 2 graphic equalizer for the OUT 2 output pair on the rear panel o SUB CROSSOVER low pass filter equalizer for the GEN SUB output This is the graphic equalizers calibration page In the lower part of the screen there are the seven central band frequencies To move the cursor from one band to the other us...

Page 21: ...e signal is filtered o FREQ adjusts the cutoff frequency of the filter ranging from 80 to 300 Hz The following graphs show how this equalizer works SLOPE FLAT SLOPE 12 dB OCT 14 dB 12 dB 10 dB 8 dB 6 dB 4 dB 2 dB 0 dB 2 dB 4 dB 6 dB 8 dB 10 dB 12 dB 14 dB Level F Freq 14 dB 12 dB 10 dB 8 dB 6 dB 4 dB 2 dB 0 dB 2 dB 4 dB 6 dB 8 dB 10 dB 12 dB 14 dB Level F Freq SLOPE 24 dB OCT 14 dB 12 dB 10 dB 8 d...

Page 22: ...ELD T buttons To select the sound source press VALUE A checkmark will appear on the selected field s Use the VALUE button to delete the checkmark and deselect the sound source To quit the page and save the current settings press EXIT 5 4 MIDI SETTINGS MIDI functions To access the MIDI interface settings of the organ select the MIDI field under the SETTINGS menu This first video page will appear co...

Page 23: ...tor MIDI IN MIDI OUT Chorum MIDI player MIDI OUT Expander MIDI IN THRU the MIDI OUT port transmits only MIDI data received by the MIDI IN port and does not transmit any data about the actions applied on the organ Use this option when the organ is part of a MIDI system the instrument connected to the MIDI output of the organ does not respond to any action applied to the Chorum itself but only recei...

Page 24: ...channel for each section To set the MIDI channels select the CHANNELS field in the MIDI menu The following page will appear Three manual models Two manual models The SECTION column lists the organ sections for each section a channel from the TX transmission channel and RX receiving channel can be assigned Press EXIT to leave the screen and save the settings OFF mode disables the transmission and o...

Page 25: ...on This function sets the velocity of the notes played with Orchestra stops and transmitted through MIDI OUT port for each section Three manual models Two manual models For each section set a fixed value FIXED from 1 to 127 or three dynamic curves SOFT NORMAL or HARD Press EXIT to leave and save the settings 5 6 COMBINATIONS OPERATING FUNCTIONS COMBINATIONS function The user can choose the set up ...

Page 26: ...tatus of the couplers to general combinations only selecting GENERAL or general and divisional combinations selecting GEN DIV o PIST COMB Piston Combine only for models with divisional combinations synchronize the divisional combinations of Man II for three manual models or Man I for two manual models The available options are M II P three manual models or M I P two manual models recall a division...

Page 27: ...endo steps and Local Off stops cannot be modified Only the tuning parameters in the Main Page and Organ Style selection will be available To recall this function select the SECURITY field in the SETTINGS menu in this first screen you can set what you want to block o SETTINGS general instrument settings SETTINGS menu o STYLES organ Styles parameters STYLES menu o COMBINAT Combinations combinations ...

Page 28: ...tem requires the right password to proceed Furthermore the password can be modified while a lock function is already active To do so select the SET PASSWORD field Enter the current password to proceed and now enter the new password the following page confirms that the password has been successfully modified As written on the display press EXIT to return to the SECURITY main page 5 9 RESTORING FACT...

Page 29: ...t will be restored and will ask for confirmation Press ENTER again to start the process or EXIT to abort it When the process is complete the FACTORY SETTINGS SUCCESFULLY RECALLED message will appear In the previous phase if the message SOME PARAMETERS ARE LOCKED is showed please check the SECURITY options par 5 8 as it is not possible to proceed with the restore operation 5 10 UPGRADING THE OPERAT...

Page 30: ...r reboot the instrument while the USB drive is connected then press ENTER when the system requests to complete the update if there is no such request start the update again following the procedure described in this paragraph if the system displays the error message RELESE CHECKSUM ERROR after restarting the system write an email to the technical assistance service service viscount it reporting the...

Page 31: ...currently running on your instrument then look for available updates on the website www viscountinstruments com To do so select the SYSTEM field on the display under the SETTINGS menu now select the SYS INFO field The RELEASE field indicates the currently installed version and the organ model is displayed below Press EXIT to return to the previous page ...

Page 32: ... the STYLES field in the MAIN MENU The following page will appear The fields on this menu perform the following functions o ENSEMBLE level of tiny natural differences in pitch between one organ pipe and another simulating the tuning error that occurs in the organ s pipes due to wear over time and variations in temperature The values range from 0 pipes perfectly tuned to 8 maximum pitch instability...

Page 33: ... values of the manuals tremulant Press EXIT to go back to the STYLES menu and save the new settings 6 2 REGULATING THE VOLUME OF EACH VOICE VOICES VOLUMES function The volumes for each single stop can be adjusted in a range of 12 dB to 6 dB and allows a perfect balance of the overall sound of the organ Select the VOICES VOLUMES field in the STYLES menu The display will show the organ sections sele...

Page 34: ...ned to orchestra sounds A full list of these stops for each Chorum model can be found on the website www viscountinstruments com To select an orchestra voice access the STYLES menu and then select the ORCHESTRA field The display shows Three manual models Two manual models Use the buttons VALUE and VALUE to select a stop for each section The currently selected stop lights up making it easier to fin...

Page 35: ... five sub folders are automatically created They are alls this folder contains the all files with all the settings and functions of the SETTINGS and STYLE the four Styles menus all general and divisional combinations Tutti Crescendo steps the selected Style and the Local Off status of stops combinations this folder contains the cmb files with all the data on general and divisional combinations Cre...

Page 36: ...selected file type the display shows the message NO FILES N B Once the USB pen is inserted please wait some seconds before displaying the FILE menu The system displays the error message USB PEN NOT PRESENT when accessing the function without a USB drive connected to the instrument or when the pen drive has not been recognized Should this happen check that the pen drive is not damaged and has the c...

Page 37: ... B When a single Style is loaded it can only replace a Style of the same type a Baroque Style replaces Baroque Romantic replaces Romantic etc To identify Styles easily the system always suggests the Style type as file name when saving Styles Please keep in mind that when loading a file all the corresponding information settings combinations Styles etc currently in use on the organ will be lost To ...

Page 38: ...oque Romantic replaces Romantic etc To identify Styles easily the system always suggests the Style type as file name when saving Styles If there is already a file with the same name and extension in the USB drive you have the option to overwrite that file the system shows the following message FILE ALREADY EXISTS Now press ENTER to proceed or EXIT to enter a different name Please keep in mind that...

Page 39: ...ar 8 3 8 1 PLAYING BACK A SONGS PLAY mode In the sequencer mode selection screen described above select the PLAY field The display shows the mid files stored in the USB pen if there are no files the message NO FILES will appear N B To copy files with a computer to a USB drive that has never been used with the organ it is necessary to create the folders described in the par 7 1 manually Files must ...

Page 40: ...he display changes to furthermore the functions of the buttons ENTER and EXIT have changed ENTER pause play the track EXIT stop the reproduction FIELD S FIELD T VALUE VALUE keep the functions already described N B Once the USB pen is inserted please wait some seconds before selecting the PLAY mode The system displays the error message USB PEN NOT PRESENT when accessing the sequencer without a USB ...

Page 41: ...nd future developments only that should not be altered Divisional modules are recorded as Control Change 7 events Expression pedals position as Control Change 11 These Control Change channel are identical to the previous ones The stops settings together with cancel enclosed coupling settings etc are recorded as Exclusive System We advice you not to alter these codes If you wish to add or remove st...

Page 42: ...Y playback of the recoding before saving it o OVERDUB creation of a new recording to be added to the sequence just acquired see par 8 3 o DISCARD AND EXIT delete the recording and quit sequencer Record mode If the SAVE field is selected the system prompts the user to assign a name to the MIDI sequence about to be saved When composing the name use the FIELD S and FIELD T buttons to move the cursor ...

Page 43: ...to substitute the settings stops coupling tremulant MIDI controls general controls recorded in the track with the ones currently selected Press ENTER to use the new settings or EXIT to leave them as they are The system will ask the same question this time regarding the divisional volumes and expression pedal N B The system displays the error message USB PEN NOT PRESENT when trying to save a MIDI s...

Page 44: ...functions described above Press EXIT to quit the recording The system will ask you to accept the overdubbing You can choose one of the following options o ACCEPT accept the overdubbing In case the overdub track is shorter than the original songs it will not be shortened o TRIM AND ACCEPT accept the overdubbing If the overdub track is shorther than the original song this will be trimmed to end toge...

Page 45: ...Press ENTER to continue and therefore discard the recording or EXIT to return to the previous screen N B The system displays the error message USB PEN NOT PRESENT when trying to save a MIDI sequence without a USB drive connected to the instrument or when the pen drive has not been recognized Should this happen check that the pen drive is not damaged and has the correct format The error message FIL...

Page 46: ...acks to allow you to fully appreciate the quality its sound qualities and or those of the changes you have made To recall playback of the demo tracks select the DEMO field from the menu SETTINGS Use the FIELD S and FIELD T buttons to select each song of music Press ENTER to start and stop each song Press EXIT to leave the DEMO function 10 2 TEMPERAMENT Tuning a fixed intonation instrument e g orga...

Page 47: ...third interval is represented by a 5 4 ratio Therefore rounding off the frequency of a major third generated by Pythagorean fifths is 1 2656 while a natural major third is 1 2500 This surplus is called Syntonic comma A series of four fifths each one reduced by of Syntonic comma makes a perfect major third These fifths are called meantone If a temperament recovers only one syntonic comma it still n...

Page 48: ... on E and B The four major thirds on C G Eb Bb are Pythagorean The coexistence of pure and tempered chords gives a peculiar character to this tuning WERCKMEISTER III WERCKMEIST 3 on display Based on four fifths each reduced by Pythagorean comma the others are pure Creates three Pythagorean major thirds on C F G As the number of alteration in the piece performed increases so does the harmonic tensi...

Page 49: ...ne fifths shorter than pure fifths but still sounding well Only one G fills all the gap created by 11 others and becomes a wolf fifth Tonalities with little alterations sound very pleasant Well characterised chromatic scale Move the wolf on C to use the G key as Ab VALLOTTI Based on six fifths each decreased by 1 6 of Pythagorean comma The others are pure fifths The major thirds on Eb B Bb E F A a...

Page 50: ... by Bach 1722 The tuning is based on five fifths each reduced of 1 5 of Pythagorean comma This originates three Pythagorean major thirds on C F G None of the thirds is pure The major third closer to being pure is on C KIRNBERGER III KIRNBERGER3 on display Based on four fifths each one reduced by of syntonic comma and one fifth reduced of the remaining skisma There is only one pure major third on C...

Page 51: ...ons increase WERCKMEISTER V WERCKMEIST 5 on display Based on five fiths reduced by 1 5 of Pythagorean comma and one fifth increased of the same amount This tuning is rarely used as there is no tonality that is much euphonic SILBERMANN Based on fifths reduced of 1 6 of syntonic comma Wolf fifth is located on G Thirds that in meantone tuning are pure here are 1 3 syntonic comma wider The wolf fifth ...

Page 52: ... this temperament the chromatic scale has a particular character ZARLINO Eleven fifths are reduced by 2 7 of syntonic comma The wolf fifth very wide and therefore unusable lies on G Eight third majors are usable and reduced by 1 7 of syntonic comma Well characterised chromatic scale SAUVEUR 1 SAUVEUR 2 The Saveur 1 tuning is based on eleven fifths reduced by 1 5 of syntonic comma Wolf fifth lies o...

Page 53: ...ALIZER function OUT 2 SETTINGS menu EQUALIZER function SUB CROSSOVER SETTINGS menu EQUALIZER function PEDAL OUT 1 OUT 2 SETTINGS menu EXTERNAL OUTPUTS function MANUAL I OUT 1 OUT 2 SETTINGS menu EXTERNAL OUTPUTS function MANUAL II OUT 1 OUT 2 SETTINGS menu EXTERNAL OUTPUTS function MANUAL III OUT 1 OUT 2 SETTINGS menu EXTERNAL OUTPUTS function in 3 manuals models REVERB OUT 1 OUT 2 SETTINGS menu E...

Page 54: ...trols AP MIDI Program Change and Bank Select Orchestra voices Style recalled if enabled in COMBINATIONS function Crescendo 16 steps all stops all couplers all tremulants FILE STS PARAMETER POSITION NOTE ENSEMBLE STYLE menu TREMULANTS DEPTH STYLE menu TREMULANTS function TREMULANTS SPEED STYLE menu TREMULANTS function VOICES VOLUMES STYLE menu VOICES VOLUME function ORCHESTRA VOICES STYLE menu ORCH...

Page 55: ...struck Note Number the key which has been pressed and therefore the relative note played Velocity note dynamic i e the force applied when the key was struck Note messages are expressed as a number from 0 to 127 with middle C represented by number 60 NOTE OFF This message is transmitted when a key struck previously is released When it is received the sound of the note relating to the key is switche...

Page 56: ...ated so it switches off any notes still active Remember that the transmission and reception of this message is optional so not all instruments are equipped to handle it 10 6 DETAILED MIDI IMPLEMENTATION CHANNEL MESSAGES Using default settings channel messages are sent on the following MIDI channels 3 MANUALS MODELS Ch 1 Man III notes or controls Ch 2 Man II notes or controls Ch 3 Man I notes or co...

Page 57: ... Off CC 123 Terminates all notes currently on for the specific channel Data format BnH 7BH 00H n channel number 0H EH 1 15 Program Change Messages for selecting sounds timbres or programs in external modules It also can be received by the organ to recall combinations Tutti and Crescendo steps Data format CnH mmH Transmitted n channel number 00 EH 1 15 mm Program Ch number 00H 7FH 0 127 Received n ...

Page 58: ...itch 0H voice off 4H voice on nH channel number 0H EH xxH voice id first byte yyH voice id second byte F7H End of Exclusive Tremulant Speed Parameter Spd Video page Style Tremulants Data format F0H 31H 2nH 5AH vvH F7H F0H Exclusive status 31H Viscount ID 2nH channel number s 0H EH 5AH tremulant speed vvH speed value 04H 20H F7H End of Exclusive This message is transmitted when the Tremulant is swi...

Page 59: ... Exclusive Couplers 3 manuals models on off Data format F0H 31H 2FH 70H vvH F7H F0H Exclusive status 31H Viscount ID 2FH system control 70H coupler vvH type and switch 00H III P on 10H III P off 01H II P on 11H II P off 02H I P on 12H I P off 03H III II on 13H III II off 04H I II on 14H I II off 05H III I on 15H III I off F7H EOX This message is only received and recorded by the internal sequencer...

Page 60: ...TEM Song Pos COMMON Song Sel Tune SYSTEM Clock REAL TIME Commands AUX Local On Off MESSAGES All notes off Active Sense Reset NOTES 1 this message can be received on ch 16 only for selecting Memory Bank 2 this message can be received on ch 16 only for selecting combinations Tutti and Crescendo steps Mode 1 Omni On Poly Mode 2 Omni On Mono O YES Mode 3 Omni Off Poly Mode 4 Omni Off Mono X NO 1 15 1 ...

Page 61: ...n point for the recycling of electrical and electronic equipment By ensuring this product is disposed of correctly you will help prevent potential negative consequences to the environment and human health which could otherwise be caused by inappropriate disposal of this product The recycling of materials will help to conserve natural resources For more detailed information about the recycling of t...

Page 62: ...viscount Viscount International S p A Via Borgo 68 70 47836 Mondaino RN ITALY Tel 39 0541 981700 Fax 39 0541 981052 Website www viscountinstruments com ...

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