Red Sound Systems Federation BPM FX DJ Owner's Manual

CONTENTS
Introduction ..............................................................................................................................
Front Panel .............. .............................
...... .........................................................
Front Panel-Features ..........................................................................................
Rear Panel ...........................................................................................................
C
onnections ........................................................................................................
Quick Start
Operation .........................................................................
Effects
Getting Started ................................................................
BPM Display
...........................................................................................................
..........................................................
Configuration .........................................................................................
....................................
......................
........................................................................................................
Synchronisation Indicator .................................................................................
Activating The Effects ......................................................................
..................
SUPERKILL .........................................................................................................
FILTER/LFO .........................................................................................................
CUTTER ...............................................................................................................
DELAY ..................................................................................................................
PANNING .............................................................................................................
Setting The BEATS .................................................
TAP/Clear
.............................................................................................................
NUDGE Control ............................................................
............................................
.......................................
FX Mixer Joystick Control .................................................................................
PROGRAMS
USER BEATS ..........................................................
UTILITY ................................................................
Headphone Monitoring ...........................................................
........................................................................................................
............................................
................................................
...........................
Hints & Tips ........................................................................................................
Specification ....................................................................................................
1 2 3 4 5 6
7 7 7 7 8 8 9
9 10 12 13 14 16 17 17 20 22 23 29 32 32
IBC
This operation manual uses the following symbols for identifying indicator conditions:
= INDICATOR ON
= FLASHINGINDICATOR
OPERATING CRITERIA
This product has been designed to operate most effectively with dance music - i.e. music based on strong regular beats and patterns. However, as the range of pre-recorded dance material is virtually limitless (and the audio mix of individual tracks unknown) we cannot guarantee the performance of the FEDERATION BPM FX with every style of dance music.
The FEDERATION’s synchronisation performance may be affected if the beat information is either unavailable or indefinable within the audio track. Please note this when selecting your audio material.
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Copyright / Software Copyright / Design Right 1999RED Sound Systems Ltd.
Printed in England - Issue 3
INTRODUCTION
WELCOME TO THE FEDERATION
Congratulations! By purchasing the FEDERATION BPM FX, you have joined an exclusive new club of musicians, remixers and Djs who have discovered a new level of power and control over the effects in their music. Previously, to make effects happen in time with music was a matter of painstaking analysis of the source signal and time­consuming tweaking of parameters on effects units to make sure that the tempo inherent in the effects did not clash with or break up the tempo of the music.
In one fell swoop the FEDERATION does away with all that tedious messing about (matching milliseconds to BPMs and hooking multiple effects units together) by assembling everything you need in one unit to filter, gate, delay and pan in perfect synchronisation with your music.
At the heart of the FEDERATION is Red Sound's acclaimed ‘V2’ BPM Analysis Engine (developed through ground­breaking products like the Voyager 1 and Micro-BPM), which shoulders the responsibility of calculating the tempo of the music. This leaves you free to concentrate on the real-time controls of the four simultaneous effects the FEDERATION offers.
Three of these effects have been available in various forms before, but never in such an easy-to-use and innovative form. By triggering the filtering in time with the music, you can seriously alter the harmonic shape of the sound without destroying the beat. The cutter makes gating and shaping the overall volume of the music in time a breeze but perhaps the greatest timesaving is in the automatic synchronization of delays to the tempo of the music. No more look-up tables for BPM equivalents in milliseconds, or complicated formulas that need a calculator. You just decide which beats you want to hear the delays coincide with and then you can move on to more creative decisions.
But even the unique combination of these facilities is dwarfed by the FEDERATION's ability to split the audio input into three bands (Low, Mid and High) which can then be panned around independently in the stereo field. Patented under the name of Spatial Panning System (SPS), this is a genuine first and will enable entirely new effect textures and beat-related movements in the music of the future.
In addition, the innovative SUPERKILL feature lets you take re-mixing to new dimensions with advanced DSP phase shift vocal elimination and bass kill.
This manual is designed (like the FEDERATION itself) to get you using the effects and sync'ing them to the music as quickly as possible. The simple real-time operation of the effects parameters and beat assignment is described in detail, but at no time does it try and define how these effects should be used. We tell you how the FEDERATION BPM FX works but never how to use it. That's down to you!
1
OWNERS MANUAL
FRONT PANELFRONT PANEL
13
14
15
17
12
Max
Min
Max
Min
-DJ
FX
BPM
FEDERATION
RED
MONITOR
SPEED
DEPTH
SHAPE
POS
LGH /BAR
11
2/1 USER
1/1
3/4
2/3
1/2
1/3
1/4
Whole
8
7
Triplet
6
5
PROG
4
9
PROG.
BAR LOOP
ON/OFF
MASTER
USER
2/1
1/1
3/4
BEATS
2/3
8
7
6
10
TM
SET
SPEED
2/1 USER
1/1
Mid-Hi
Lo-Mid
Full
Off
2-WAY SPLIT
SPS
3/4
2/3
1/2
1/3
1/4
BEATS
BEATS
BPM
ACTIVATE
PUSH
OK
Lo-Hi
CUTTER
2- Way
UTILITY
FX MIXER
PULL
SYNCHRONISATION
SET
ACTIVATE
PANNING
LIVE (REC)
2
USER BEATS
1
BASS
16
18
INPUT
LEVEL
OUT/IN
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Max
Off
SPEED
(MASTER)
(LFO SHAPE)
ENV MOD
RESONANCE
FREQUENCY
2/1 USER
1/1
3/4
2/3
1/2
1/3
1/4
1
3
SUPERKILL
ACTIVATE
FAZED
DELAY
2
1
PATT
Set Quantize
PATTERN SET
Set Pattern Length
2/1
SPEED
1/1
3/4
Max
BEATS
ACTIVATE
Min
2/3
BEATS
REPEAT
1/2
FILTER/LFO
1/3
SET (MASTER)
Mix
Wet
1/4
MIX
Dry
SET
BPM
+/UP
2
1/2
5
1/3
1/4
PUSH
BPM
PULL
-/DOWN
NUDGE
4
TAP
(CLEAR BPM)
3
FEDERATION BPM FX
2
FRONT PANEL FEATURESFRONT PANEL FEATURES
FRONT PANEL FEATURES
1.
FILTER/LFO:
the filter effect. The ACTIVATE button switches the effect on and off. The SET button can be used to change the BEATS trigger value of the FILTER or access the LFO SHAPE and master SPEED/BEATS functions.
2.
DELAY:
switches this effect on and off. The SET button is used to change the BEATS trigger value of the DELAY.
3.
TAP (CLEAR BPM):
4.
NUDGE:
trigger sync point. Also used for general data entry.
5.
SUPERKILL:
6.
BEATS:
setting of the effects. In Program mode they are used to recall, compare and save the effect programs. In Pattern Record mode they are used to record, delete and edit events.
This section features FREQUENCY, RESONANCE, ENVELOPE MOD and SPEED controls for
This section features MIX, REPEAT and SPEED controls for the delay effect. The ACTIVATE button
This button is used to manually ‘tap’ in a tempo or clear the current BPM reading.
These buttons are used to make fine, manual adjustments to the BPM value and shift the audio/effect
These two buttons select the DSP Fazed and Bass filtering.
This section features 8 buttons. In Select mode, they are used to set the BEATS synchronisation
7.
USER BEATS:
W
hen the ‘LIVE’ button is selected, the TAP button can be used to manually trigger effects ‘on the fly’.
8.
PROGRAM (BAR LOOP):
button also selects BAR LOOP mode.
9.
MASTER ON/OFF:
10.
PANNING:
ACTIVATE button switches this effect on and off. The SET button is used to change the BEATS trigger value of the PANNER.
11.
CUTTER:
button switches this effect on and off. The SET button is used to change the BEATS trigger value of the CUTTER.
12.
MONITOR:
check the effects setup before committing it to the master output. The MONITOR control adjusts the output level.
13.
UTILITY:
14.
SYNCHRONISATION:
15.
BPM Display:
displayed in Pattern, Program and Utility modes.
16.
INPUT LEVEL:
This section features 3 buttons. Buttons one and two store and recall the custom user patterns.
This button is used to select Program mode. In USER BEATS record mode, this
This button is used to switch the activated (or cued) effects on and off.
This section features SPS, 2-WAY SPLIT and SPEED controls for the panning effect. The
This section features SHAPE, DEPTH and SPEED controls for the cutter effect. The ACTIVATE
This feature lets you monitor the activated effects at the pre-Master on stage, allowing you to
This button lets you access the utility parameters such as Input Gain, Effects Configuration etc.
This 3-way indicator shows any audio/effect synchronisation adjustments.
The four digit BPM reading of the audio signal will be displayed here. Also, information will be
The bi-colour input indicator is used to check the audio input level status.
17.
FX MIXER:
position, all activated effects will be heard equally. Moving the joystick about its axis will vary the combined balance of the activated effects.
18.
PATTERN SET:
(LED on) in USER BEATS record pause mode .
This joystick control
This button selects between SET PATTERN LENGTH (LED flashing) and SET QUANTIZE
adjusts the relative balance between the activated effects. At the centre
3
OWNERS MANUAL
REAR PANELREAR PANEL
IN/OUT
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TM
L
R
RED
CAUTION: DO NOT OPEN CASE REFER TOQUALIFIED SERVICE PERSONNEL NO USER SERVICEABLE PARTSINSIDE
MADE IN ENGLAND
OUTIN
RED Sound Systems Ltd
Patent Pending
123
1.
IN/OUT - RCA Phono Connectors
Use these sockets to connect the FEDERATION to your audio system, as shown on page 5.
2.
POWER - Switch
This turns the power on and off.
3.
DC POWER IN - Connector
Only use the 9vDC 800 mA PSU supplied with the FEDERATION to power the unit.
ON
OFF
POWER
-
9v DC
+
FEDERATION BPM FX
4
CONNECTIONS
MASTER OUTPUT
IN
INPUT
LEVEL
OUT/IN
OUT
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PSU
RED
TO
SOCKET
AC WALL
LINE LEVEL OUTPUT
+
-
POWER
ON
DJ MIXING DESK
M T
Max
SET
MONITOR
Min
SPEED
Max
DEPTH
Min
SHAPE
-DJ
FX
BPM
FEDERATION
RED
SPEED
Max
ENVMOD
Off
RESONANCE
FREQUENCY
SET
ON/OFF
USER
2/1
1/1
3/4
Lo-Hi
BEATS
2/3
ACTIVATE
CUTTER
1/2
1/3
2-Way
1/4
UTILITY
PUSH
7
POS
5
OK
BPM
9
LGH/BAR
0
PULL
SYNCHRONISATION
SetQuantize
SetPatternLength
PATTERNSET
(MASTER)
USER
2/1
1/1
3/4
BEATS
2/3
ACTIVATE
FILTER/LFO
1/2
1/3
1/4
SET(SPEED)
MASTER
USER
SPEED
2/1
1/1
PROG.
BARLOOP
Mid-Hi
3/4
Whole
BEATS
2/3
ACTIVATE
8
2-WAYSPLIT
USER
PANNING
Lo-Mid
1/2
Full
1/3
SPS
7
1/4
2/1
Off
Triplet
6
1/1
LIVE(REC)
4
5
3/4
3
BEATS
FXMIXER
USERBEATS
4
2/3
2
1
3
1/2
FEDERATION
2
1/3
2/1
SPEED
1/1
1
3/4
1/4
2/3
BEATS
REPEAT
ACTIVATE
PATT
DELAY
PUSH
1/2
BPM
-/DOWN
1/3
BPM
NUDGE
+/UP
PULL
1/4
LEVEL
TAP
SET
(CLEARBPM)
IN/OUT
9v DC
OFF
NNEL
PERSO
INSIDE
VICE
ARTS
CASE
P
SER
OPEN
NOT
VICEABLE
QUALIFIED
SER O T
N: DO
USER
CAUTIO
REFER
NO
RED
L
R
TM
Patent Pending
MADE IN ENGLAND
RED Sound Systems Ltd
OUT
IN
IN
OUT
L
R
L
R
INPUT
LEVEL
OUT/IN
www.redsound.com
CHANNEL INPUT
M T
Max
SET
MONITOR
Min
USER
USER
SPEED
2/1
2/1
1/1
1/1
SPEED
Mid-Hi
3/4
3/4
Lo-Hi
BEATS
BEATS
2/3
2/3
Max
ACTIVATE
2-WAYSPLIT
CUTTER
Lo-Mid
1/2
1/2
DEPTH
ull F
Min
1/3
1/3
SPS
2-Way
1/4
1/4
Off
SHAPE
UTILITY
DJ
-
PUSH
7
POS
FX
5
OK
PM
BPM
9
B
FXMIXER
LGH/BAR
0
PULL
SYNCHRONISATION
FEDERATION
RED
SetQuantize
PATTERNSET
SetPatternLength
SPEED
(MASTER)
USER
2/1
SPEED
2/1
Max
1/1
1/1
3/4
ENVMOD
Off
3/4
2/3
BEATS
BEATS
REPEAT
2/3
ACTIVATE
1/2
FILTER/LFO
1/2
1/3
RESONANCE
1/3
1/4
LEVEL
1/4
SET(SPEED)
FREQUENCY
CD/TAPE - LINE LEVEL ONLY.
SET
ACTIVATE
PANNING
LIVE(REC)
4
3
USERBEATS
2
1
ACTIVATE
DELAY
SET
UNSUITABLE FOR PHONO LEVEL
ON/OFF
MASTER
PROG.
BARLOOP
Whole
8
USER
7
2/1
Triplet
6
1/1
5
3/4
BEATS
4
2/3
3
1/2
FEDERATION
2
1/3
1
1/4
PATT
PUSH
BPM
-/DOWN
BPM
NUDGE
+/UP
PULL
TAP
(CLEARBPM)
ALTERNATIVE SETUP 2
DJ MIXING DESK
MASTER INPUT
FX RETURN
ALTERNATIVE SETUP 1
FX SEND
DJ MIXING DESK
SOUND SYSTEM
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HEADPHONES
5
OWNERS MANUAL
QUICK STARTQUICK START
QUICK START
If you want to quickly try out the performance of the FEDERATION, please read the following points carefully:
CONNECTIONS:
Connect the power supply (included) to the ‘power in’ socket on the rear panel of the FEDERATION and plug it into a suitable AC outlet. Connect the audio cables for a basic system setup as shown on page 5.
TURNING ON THE POWER:
mixing desk and amplifier system are turned completely down. Press the rear panel power switch on the FEDERATION. Turn on the power of the mixing desk and then turn on the power of the amplifier system.
START UP INDICATIONS:
version and then change to show four illuminated centre bars. If this does not happen, check the power supply is of the correct type and the unit is switched on.
SELECTING A PROGRAM:
select one of the eight factory presets, press and hold down the ‘PROG’ button (LED on) and then press one of the main BEATS buttons marked 1-8.
INPUT LEVELS:
playback on the connected sound source and check the status of the front panel bi-colour level indicator marked ‘IN/OUT’ level. The audio input is setup to work with normal line level output signals therefore, the level indicator should now be coloured green, occasionally flashing red. If the indicator is off or constantly red, adjust the gain and/or output levels on the mixing desk. (Also see the “Input Gain” section in UTILITY mode on page 29)
ACTIVATING THE EFFECTS:
beats per minute.
Press the ‘MASTER ON/OFF’ button. The audio signal will now be processed through the effects, as setup by the selected program.
Before making any connections, make sure that the power on all your equipment is turned OFF.
Make sure all connections have been made correctly and the volume controls on the
When the FEDERATION is powered up, the BPM display will briefly show the software
We’ve already stored a selection of typical effects setups in the FEDERATION. To
Select a suitable audio track (dance orientated music with defined beat information), start the
The BPM display should now be reading the tempo of the selected audio track in
Try adjusting the controls on any activated effect (LED on within ‘Activate’ buttons) to hear how they alter the sound in real-time. To change a ‘BEATS’ trigger setting, simply press the ‘SET’ button (LED on) of the desired effect and then press one of the main ‘BEATS’ buttons near the front of the main panel (also used to select programs). The timing of the effect triggering will instantly change to the new setting. Try the whole range of preset timings (always press the SET button first before selecting a new BEATS setting) to hear the way they can completely change the feel or ‘groove’ of the music.
Now try editing the other effects in a similar manner (use the ACTIVATE buttons to select or de-select each effect) and, when you’re ready, activate all four at once with different BEATS trigger settings.
As a final touch, try moving the FX MIXER joystick about it’s axis to hear the effects blend into each other and interact in a myriad of combinations.
Please read the following “OPERATION” section fully to totally appreciate the range of features and facilities the FEDERATION BPM FX-DJ has to offer.
FEDERATION BPM FX
6
OPERATION
EFFECTS CONFIGURATION
The FEDERATION BPM FX ‘DJ’ model is ideal for those who are new to the world of digital FX, or will be using the product in high-pressure situations such as live gigs. All four effects are chained together into a single signal path, automatically taking the output of the first effect and feeding it to the second, the second to third etc. We have arranged the effects in a logical order; Filter, Cutter, Delay, Panning. This means that you are unlikely to end up with a later effect upsetting what you have already setup for an earlier one in the chain (if you are worried about this restricting your creativity, read "Setting the effects configuration" in the “UTILITY MODE” section on page 29).
Connecting the FEDERATION into your sound system couldn't be easier. Simply take the FX send from your mixer and plug this into the pair of inputs on the rear panel of the FEDERATION labelled ‘IN’. Then, connect the outputs to the FX return on your mixing desk - see page 5 for further details. Now all the effects are connected together and you can use whichever combination you like straight away. Alternatively, you can connect the FEDERATION in-line between a single sound source (line level) and the mixing desk input. With this setup, the effects will only operate on the single sound source - see ‘Alternative Setup 2’ on page 5.
GETTING STARTED
After connecting the FEDERATION to your system as detailed above, press the power switch on the rear panel to turn the power on. The version of software fitted to your unit will now be shown briefly on the main display:
LGH/BAR POS
Software version = 1.04
BPM
Afterwards, the four centre bars will illuminate to indicate the ‘IDLE’ status of the BPM engine, as shown below:
LGH/BAR POS
Four static centre bars indicate no beat detected ‘IDLE’ condition
BPM
INPUT LEVELS
The bi-colour ‘INPUT LEVEL’ indicator at the top edge of the front panel monitors the input signal level. This indicator shows three input level conditions as follows:
OFF - No signal or very low signal level BRIGHT GREEN - Normal line level signal present -
Ideal working level
RED - Overloaded signal - Level too high
With the FEDERATION connected to your DJ system as detailed on page 5, play a suitable upbeat track on any connected sound source and ensure the mixing desk’s gain/level controls are set correctly (0dB).
If you have connected the FEDERATION to the master outputs of the mixer, move the mixing desk master output fader to it’s normal working position (around 0dB indication on output level meters) and observe the FEDERATION’s input level indicator. The indicator should be illuminated GREEN, occasionally flashing RED. If the level indication is incorrect, adjust the FEDERATION’s input gain accordingly. See UTILITY MODE 1 on page 29.
NOTE: if the input signal level is set incorrectly, the performance of the BPM engine and/or audio quality may be affected.
7
OWNERS MANUAL
OPERATION
BPM DISPLAY
Start the playback of a suitable audio track (containing definable beat information).The BPM display should now show the tempo of the track in beats per minute as in the following example:
LGH/BAR POS
Example reading = 138.2 BPM
BPM
The indicator in the MASTER ON/OFF button (and any selected ACTIVATE buttons) will now flash at the detected BPM rate to indicate ‘PAUSE’ mode.
NOTE: If the BPM engine has picked up on the off-beat information in the track (LEDs flashing on the off-beats) from a prominent Hi-Hat etc., you can use the NUDGE control’s Pull/Push feature to adjust the synchronisation to the on-beat position - for further information see page 18.
During tempo analysis of the audio track, the right-hand digit in the display may fluctuate slightly as the BPM reading is constantly updated in real-time. Any major shift in tempo (changing the playback speed using a CD/vinyl deck’s pitch control) will be tracked and displayed by the FEDERATION.
IMPORTANT NOTE: the FEDERATION’s BPM engine will continue triggering the effects indefinitely at the last detected BPM rate if the strong regular beats in the audio track become unavailable. This feature allows the effects to continue operating through quite passages in the audio track.
If the strong regular beats in the audio track become unavailable, the 3 remaining decimal point indicators in the BPM display will flash continuously, as shown in the following example:
LGH / BAR POS
3 flashing decimal points indicate
BPM
'free-wheeling' condition
This will occur approximately 5 seconds after the last valid BPM reading was taken to warn you the FEDERATION is now 'free-wheeling' and the BPM display is no longer being updated from the audio track. When the beats in the audio track return, the FEDERATION will automatically detect the BPM information and make any necessary adjustments, at which time the flashing decimal point indicators will go out to indicate a 'locked-in' condition.
SYNCHRONISATION INDICATOR
This 3-way indicator shows the synchronisation status between the audio and effect beat position. The BPM engine constantly analyses the accuracy of the relative downbeat positions and will either 'PULL' or 'PUSH' the effect triggering to maintain the synchronisation.
When the audio and effects are the green 'OK' indicator will light, as follows:
synchronised
OKPULL PUSH
SYNCHRONISATION
If the effects are of the audio, the red 'PULL' indicator will light, as follows:
If the effects are the audio, the red 'PUSH' indicator will light, as follows:
FEDERATION BPM FX
ahead
behind
OKPULL PUSH
SYNCHRONISATION
OKPULL PUSH
SYNCHRONISATION
8
OPERATION
ACTIVATING THE EFFECTS
Each effect can be turned on and off independently using the ‘ACTIVATE’ buttons in conjunction with the MASTER ON/OFF button.
To cue the effect(s), press the ACTIVATE button(s) once in ‘PAUSE’ mode (BPM detected, MASTER ON/OFF indicator flashing at BPM rate). The indicator(s) in the ACTIVATE button(s) will now also flash at the BPM rate. Use the MONITOR feature to listen to the cued effects before committing them to the master output (see page 32).
Press the MASTER ON/OFF button once (LED on) to output the activated effects. The indicators in the ACTIVATE buttons will stay on when the MASTER button is set to ‘ON’ and flash when set to ‘PAUSE’.
To instantly switch the effects ON, press the MASTER ON/OFF button (LED on) and then press the desired ACTIVATE button(s). You can select /de-select the effects at random using the MASTER ON/OFF and ACTIVATE buttons.
SUPERKILL
The SuperKill section allows you to radically alter audio with or without the main effects in operation
independent of the BPM engine)
. By phase inverting the stereo signal, the vocal/instrument levels in the audio are
(totally
dramatically remixed, often revealing previously unheard elements within the music. You can choose between full FAZED kill, BASS kill or even FAZED WITH BASS kill which adds the rhythmical bass frequencies back into the FAZED mix to keep the groove going.
For Fazed Bass kill, select ‘FAZED’ button:
with
Press once = ‘Fazed with Bass’ kill
FAZED
SUPERKILL
BASS
For full Fazed kill, now select ‘BASS’ button:
FAZED
BASS
SUPERKILL
Press once (with FAZED selected i.e. LED on ) = full ‘Fazed’ kill
For Bass kill only, select ‘BASS’ button:
FAZED
‘Fazed’ kill not selected i.e. LED off
BASS
SUPERKILL
Press once = ‘Bass’ kill
To de-select the Super-Kill function, simply press the relevant button again (LED off). The Super-Kill settings can be stored with each program.
NOTE: The SuperKill function requires a STEREO input signal for satisfactory operation.
9
OWNERS MANUAL
OPERATION
THE FILTER /LFO
MaxOff
(MASTER)(LFO SHAPE)
1/13/4 2/1 USER2/31/21/31/4
SET(MASTER)
RESONANCEFREQUENCY SPEEDENV MOD
BEATS
ACTIVATE
FILTER/LFO
This effect recreates the most essential part (for many dance music producers and remixers) of a classic analogue synthesizer, the filter, and puts it under the direct control of the tempo of the source music via the synchronised Low Frequency Oscillator (LFO).
The Filter allows you to remove or accentuate frequencies in the source signal. If the Frequency knob is used on its own, then it will just make the signal duller the more it is turned anti-clockwise. However, more interesting results are produced if it is used in conjunction with the Resonance and Envelope Mod controls. Resonance allows you to boost the frequencies around the current cut-off Frequency, accentuating the action of the Filter, especially under the control of the LFO. This can be set to subtly emphasise the movement or exaggerate it into a squealing monster. Envelope Mod controls the amount of change to the cut-off frequency when under LFO control. The greater the Envelope Mod amount, the more the filter is quickly opened from and closed back to the Frequency knob setting at each trigger from the BPM analyser. If the Frequency knob is set closed (fully anti-clockwise) and the Env Mod to max (fully clockwise) this will produce the most marked effect, especially if Resonance is set fairly high as well.
FREQUENCY
This control sets the basic cut-off frequency of the filter. At the fully clockwise position, the filter is completely open allowing all the frequencies of the audio signal to pass through. As the control is moved anti-clockwise it gradually closes the filter, cutting out harmonics, starting with the highest and then progressively the lower ones until all the frequencies have been removed.
RESONANCE
This control sets the boost level of the frequencies around the cut-off point as set by the FREQUENCY control. At the fully anti-clockwise position there is no boost. As the control is moved in a clockwise direction the frequencies will be gradually boosted. At the fully clockwise position, the resonance will reach self-oscillation producing a new pitched element similar to acoustic feedback.
ENVELOPE MOD
This control has two functions determined by the Filter’s SET button.
Under normal operating conditions (when the SET button is pressed down) this control sets the amount
(LFO SHAPE)
(EDIT)
(MASTER)
NOT
of change (depth) of the cut-off frequency as set by the FREQUENCY control. At the fully anti-clockwise ‘Off’ position there will be no change to the filter cut-off frequency which is useful for making ‘manual’ sweeps with the filter’s FREQUENCY and RESONANCE controls. As the control is moved in a clockwise direction the filter will be increasingly opened by the audio modulation.
When the SET button is pressed and held down (LED flashing) this control sets the LFO wave shape. There
(EDIT)
are four types to choose from, each having their own individual characteristics and subsequent affect on the music.
FEDERATION BPM FX
10
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