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- 66 -

INVERTED RECTIFIED SINE

(SHAPE = 4)

SQUARE (SHAPE = 5)

RAMP

(SHAPE = 6)

INVERTED RAMP (SHAPE = 7)

The Decay Control

In the Vocal class of Delay, Chorus, Flanger, Phaser, Tremolo, and Panner effects, this control sets the amount of

time it takes the effect to fade in and out after the Threshold setting is crossed. Threshold is set with the Special

parameter. This control has been optimized for most musical applications.

0.001

0.01

0.1

1

10

0

10

20

30

40

50

60

70

80

90

100

DECAY Parameter's Value

Time in Seconds

Fade In Time

Fade Out Time

Содержание Quadra/FX

Страница 1: ...oop 3 Try It Out 4 Selecting Presets 4 Installation 5 AC Power Hookup 5 Audio Connections 5 Safety Precautions 5 Quadra FX Front Panel Controls and Indicators 6 Rotary Encoder Switch 6 Power 6 Routing...

Страница 2: ...ting 18 Faster Editing 19 MIDI 20 Editing MIDI Parameters 21 Advanced Application Notes 24 The Smart Encoder 24 Smart Encoder Use 25 Using a Default Smart Encoder Function in Preset Mode 25 Using the...

Страница 3: ...Channel Number 60 MIDI Map 60 Controllers 1 4 61 Reference 63 Quadra FX Factory Preset List 63 LFO Shapes 65 MIDI Controllers and Numbers 67 MIDI Implementation in the Quadra FX 68 Warranty Informati...

Страница 4: ...y and easily gives you access to all of its features FEATURES Four discrete inputs outputs and audio processing channels 20 bit A D D A converters on all four inputs and outputs 46 875 kHz sample rate...

Страница 5: ...t and output connections always use high quality shielded cables WITH A MIXER Connect two cords with plugs between your mixer s auxiliary sends and the Quadra FX s Inputs 1 and 2 For a mixer with a mo...

Страница 6: ...stereo monitor amplifier use one cord between the instrument and the Quadra FX s Input 1 Run a second cord from Output 1 to the amp s input If the amp has stereo input capabilities or if you re using...

Страница 7: ...preset by turning the Rotary Encoder just to the right of the Display to any preset you desire For a list of the presets arranged according to number and type see page 63 Editing effects will be cove...

Страница 8: ...at 110 VAC 50 to 60 Hz Units manufactured for use outside the United States of America have been modified to comply with the required electrical specifications Only use the adapter that came with the...

Страница 9: ...ipment that you know works try plugging into another outlet too If the outlet is good but the Quadra FX does not turn on consult your dealer or A R T Customer Service ROUTING BUTTON Routings control t...

Страница 10: ...cted effect If you instead press the Effects button you will return to Preset mode with the previous effect still loaded For more information on effects see page 29 CLASS BUTTON Press the Class button...

Страница 11: ...h parameter was chosen To edit the selected parameter s value press and then turn the Encoder The four MIDI controller assignments have two associated values and will require a second Encoder press to...

Страница 12: ...the levels entering the Quadra FX watch the 6 LED If it is constantly lit the digital processor is getting too much input level and may clip turn down the signal going to the Quadra FX For maximum dy...

Страница 13: ...Global Mix you can change these settings for all presets at once Dry Kill is used to remove the unprocessed dry part of each preset s signal from the Quadra FX s internal mix buss One application for...

Страница 14: ...se when you turn Global Mix off the saved Mix value will be the one that you hear Here s a trick to quickly set several preset s Mix parameter to a new value Set Global Mix to whatever value you desir...

Страница 15: ...ther one with a MIDI cable To perform a MIDI Dump start from Preset mode press and hold the Bypass button and then press MIDI Release both buttons It may take a few seconds to transmit the data Since...

Страница 16: ...the adapter into this jack and then into a power outlet Use only the adapter that came with the Quadra FX If the adapter ever becomes damaged immediately discontinue use MIDI IN MIDI OUT Use the MIDI...

Страница 17: ...gh impedance The use of each input jack is determined by a preset s internal routing For example Cascade and Stereo Routings do not use Inputs 3 and 4 For more information on the different configurati...

Страница 18: ...to create multiple effects Furthermore it is possible to combine the processing power of all four engines to create a super charged ultra stereo processor Engines are automatically distributed among...

Страница 19: ...H Routing By editing any preset s routing you are essentially building a new preset from scratch When routings are changed the Quadra FX reconfigures its internal architecture and loads in default eff...

Страница 20: ...All available Effect and Class LEDs are lit more on Classes below and the currently selected Effect LED is flashing To select a different effect turn the Encoder and then press the Class button to loa...

Страница 21: ...y pressing the button underneath the field that you are currently editing If you do this however the changes that you have just made will not be permanently stored in memory although you will still he...

Страница 22: ...aster Editing In the previous tutorial you learned how to edit Routing Engine Effects Class and Parameter by using their corresponding buttons It is also possible to do most editing with the Encoder a...

Страница 23: ...ree types of programmable MIDI parameters channel program change and continuous controller mappings Channel Number The MIDI channel number is the channel on which the Quadra FX will receive and transm...

Страница 24: ...on Turn the Encoder to change values If you select the Quadra FX will receive data on all 16 MIDI channels but it will only send out data on Channel 1 The MIDI channel is automatically saved whenever...

Страница 25: ...by turning the Encoder Then press the MIDI button and turn the Encoder to select one of the four controller assignments of the new engine After selecting one of the assignments look at the Parameter...

Страница 26: ...bypass the current engine via MIDI turn the Encoder clockwise until the outer four corners of the Parameter LEDs are lit After you have selected the controllable parameter press the Encoder again Now...

Страница 27: ...rent ways to access them Available Smart Encoder Functions Parameter LEDs Lit Numeric Display REVERB All Classes Reverb Impulse Decay Special 444 DELAY All Classes Delay Time Tap Delay Special Delay T...

Страница 28: ...on s Notice that the preset s Routing and current Engine LEDs are lit along with two Parameter LEDs After you have viewed the Smart Encoder function s for one engine turn the encoder further to access...

Страница 29: ...e while changing any parameter This helps to audition the quality as well as decay time and front end characteristics of your reverb programs while editing their parameters To trigger an impulse simpl...

Страница 30: ...e input jack inserted and you are in Discrete 4 routing you can create unlinked stereo effects such as flangers and choruses with different sweep widths and rates in the left and right channels You co...

Страница 31: ...es the application for which it has been optimized The actual sound variation depends on each effect and is listed with the effect descriptions beginning on page 31 The following are some class genera...

Страница 32: ...are available in every effect and consist of Mix Low EQ and High EQ Mix This parameter sets the ratio of unprocessed dry sound to processed wet sound Each effect has a Mix control with a range from 0...

Страница 33: ...High EQ Each effect has a user adjustable high equalization control that is inline with the processed wet signal It has a variable slope with a maximum treble boost cut amount of 15 dB in 1 dB steps T...

Страница 34: ...ment HALL REVERB The Quadra FX s Hall algorithms emulate actual concert halls They are clean open and sit well in a mix Echo density starts out low and builds over time to a lush balanced decay This a...

Страница 35: ...reverb impulse without actually using a noise gate the effect is produced within the algorithm Therefore both loud and soft sounds will benefit from the effect This class provides spaciousness withou...

Страница 36: ...s between reflections lower running echo density and lower tonal coloration Small Size settings simulate tighter spaces that are smooth with a high echo density Small Sizes should only be used in conj...

Страница 37: ...e ramp rate grows until you get a slow faded sound In the Dynamic class Speed sets the time that it takes the reverb to go from a minimum decay to the preset decay time depending on the audio level Wi...

Страница 38: ...signal is below the Threshold s setting the reverb s decay time is as set When the signal is higher than the Threshold the Decay time is reduced If the value in the Display is preceded by an r this f...

Страница 39: ...Decay sets the effect s fade time Instrument An Instrument Delay recreates the sound of the classic digital delay Regeneration bandwidth is controlled to produce the characteristic sound and to emphas...

Страница 40: ...er routings Regen Sets the amount of delay feedback from 99 to 100 Negative numbers correspond to inverted feedback Decay In the Vocal class this control sets the fade time of the effect after it has...

Страница 41: ...hreshold setting delay is muted With signals below the Threshold the delay is heard If the value in the Display is preceded by an r this gating action is reversed signals above the Threshold setting h...

Страница 42: ...osers each of which is sent to a separate output Of course when used in Discrete 4 mono routing there is just one PT Instrument The Instrument PT is optimized for guitar use and emulates the sound of...

Страница 43: ...size A setting of 1 is the longest buffer length and 4 is the shortest Short buffer sizes have the least amount of transport delay and work best on percussive material However they may sound rough at...

Страница 44: ...crosses below the set Threshold the Whammit effect glides to the desired transposition amount at the length of time set with Decay and stays there until the signal level crosses above the Threshold C...

Страница 45: ...sted within a musical range Concert The Concert Chorus creates a high end studio chorus It s the full blown effect with extended bandwidth and less linking between LFO Width and Speed Gated The Gated...

Страница 46: ...cay This parameter is used in Vocal class and sets the amount of time it takes the effect to fade in and out after the Threshold level is crossed A graph of this control s action is on page 66 Shape S...

Страница 47: ...Threshold level Crossing the Threshold again will trigger another LFO cycle Normally the LFO starts at its low value sweeps through its high range and ends back at its low value However if an r prece...

Страница 48: ...musical range Concert The Concert Flanger creates a high end studio flanger It s the full blown effect with extended bandwidth and less linking between LFO Width and Speed Gated The Gated Flanger is t...

Страница 49: ...feedback Decay This parameter is used in Vocal class and sets the amount of time it takes the effect to fade in and out after the Threshold level is crossed A graph of this control s action is on page...

Страница 50: ...r LFO cycle Normally the LFO starts at its low value sweeps through its high range and ends back at its low value However if an r precedes the Threshold setting the LFO will start at its high value sw...

Страница 51: ...The Concert Phaser creates a 5 notch studio phaser like the MXR Phase 100 It s the full blown effect with extended bandwidth and less linking between LFO Width and Speed Gated The Gated Phaser is the...

Страница 52: ...s Regen Sets the amount of positive or negative feedback from 99 to 100 Negative numbers correspond to inverted feedback Decay This parameter is used in Vocal class and sets the amount of time it take...

Страница 53: ...set when the input signal falls below the Threshold level Crossing the Threshold again will trigger another LFO cycle Normally the LFO starts at its low value sweeps through its high range and ends ba...

Страница 54: ...iately start spinning down After the programmed Spin Down time the effect will repeat the process and again start spinning up There is no need to manually switch between low and high settings this cla...

Страница 55: ...his control is from 0 to 20 with 0 favoring the low speaker and 20 favoring the high horn Pitch Is used in Instrument Concert Gated and Ambient classes This parameter determines which speed either hig...

Страница 56: ...l the signal drops below the Threshold when it then spins back down to the low rate If the Threshold setting is preceded by a lower case r the operation is reversed the rotary normally runs high until...

Страница 57: ...ffect in and out depending on the Threshold level Threshold is set with the Special parameter Ambient The Ambient Tremolo is a spatial effect that can fades the difference information in a stereo mix...

Страница 58: ...pecial In Vocal and Gated classes Special sets the audio input level Threshold that controls the gating action of the effect This parameter can be set in 1 dB increments from 1 to 30 dB below full sca...

Страница 59: ...Factor This parameter determines how much difference information from a stereo mix is processed by the Ambient algorithm The Difference Factor range is from 0 to 60 Normally this parameter should be u...

Страница 60: ...d Panner is the Instrument effect with the addition of dynamics sensing which can be used to duck the effect in and out depending on the Threshold level Threshold is set with the Special parameter Amb...

Страница 61: ...es table to match the parameter s value with an LFO waveform Also see page 65 for graphs of the various LFOs Pitch Controls the LFO phase difference in 30 increments between the two outputs of an engi...

Страница 62: ...LFO Speed and Width The LFO is reset when the input signal falls below the Threshold level Crossing the Threshold again will trigger another LFO cycle Normally the LFO starts at its low value sweeps t...

Страница 63: ...FF At Pb Controller 4 Parameter Any Effect parameter Smart Encoder Bypass 12 Controller 6 0dB 6 Controller 1 119 ON OFF At Pb CHANNEL NUMBER The MIDI channel number is the channel that the Quadra FX w...

Страница 64: ...Controllers have two parameters associated with them Assigned Parameter and Controller Number Press the Encoder to toggle between editing each of the two parameters and turn the Encoder to change eac...

Страница 65: ...tomatically set the controller number See page 67 for more information on MIDI controllers While editing MIDI parameters you can always return to Preset mode by pressing the MIDI button Pressing any o...

Страница 66: ...Stereo Rvb 22 Reverb FX 3 Cascade Phaser Reverb 23 MONDO Verb Cascade Reverb Reverb 24 Voice Over 1 Cascade Reverb Reverb 25 Voice Over 2 Stereo Plate Reverb 26 Gated Reverb 1 Stereo Gated Class 27 G...

Страница 67: ...ssion Surround1 Cascade Ambient Delay Reverb 75 Miked Amp Cabinet Stereo Ambient Delay 76 Concert Miking Stereo Ambient Delay 77 Percussion Surround2 Cascade Ambient Delay Reverb 78 A E Ringers Discre...

Страница 68: ...l seem to slow as the limits are reached others will seem to rip right through the transition Unfortunately the visual representations of the waveforms don t always correspond to the expected sound Fo...

Страница 69: ...and Panner effects this control sets the amount of time it takes the effect to fade in and out after the Threshold setting is crossed Threshold is set with the Special parameter This control has been...

Страница 70: ...Reserved for Bank Select 1 01 Mod Wheel 2 02 Breath Controller 3 03 Undefined 4 04 Foot Controller 5 05 Portamento Time 6 06 Data Entry MSB 7 07 Main Volume 8 08 Balance 9 09 Undefined 10 0A Pan 11 0B...

Страница 71: ...ing SysEx messages Documentation on these messages is available by requesting the Quadra FX MIDI Implementation Guide from A R T All SysEx messages share a common format Byte Number Value in hex Descr...

Страница 72: ...to make the Quadra FX dump all presets is F0 1A 0x 21 4B F7 Other MIDI Notes The Quadra FX ignores inbound Active Sensing messages The Quadra FX does not generate Active Sensing messages The System Re...

Страница 73: ...ns to or improvements upon this product without any obligation to install the same on products previously manufactured A R T shall not be liable for any consequential damages including without limitat...

Страница 74: ...address we cannot ship to a P O Box a copy of your purchase receipt a daytime phone number and a description of the problem 6 Ship only your unit and its power cord keep your manual to APPLIED RESEARC...

Страница 75: ...10 000 in Discrete 4 routing mode 144 in Twin Stereo mode 144 in Cascade mode 12 in Stereo mode 10 300 Total Effects Algorithms Stereo Twin Stereo Cascade modes 24 reverb 6 delay 6 pitch transpose 6...

Страница 76: ...uct without any obligation to install the same on products previously manufactured Therefore specifications are subject to change without notice Applied Research Technology Inc 215 Tremont Street Roch...

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