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Advanced Applications
40 Quad Panning and 3D Effects in Stereo
130 EMU Systems, Inc.
40 Quad Panning and 3D Effects in Stereo
This effect swirls the sound around four speakers using the LFO. Since the patch
is in the voice, each key will have its own circular pan.
Incidentally, you can try out this effect even if you don’t have a multi-channel
speaker system. A great pseudo-surround effect can be created with only two
speakers by assigning a reverb to the rear channels. It’s a very cool effect.
At first glance, the Emulator X and Proteus X appear to be stereo-only instru-
ments with no provision for surround sound. But wait, there are actually four
stereo outputs and the amounts all four stereo buses can be modulated by any
of the voice modulation sources. There ought to be a way, and there is!
The trick to implementing a smooth quad panning effect is to use something
called a quadrature sine wave, or two sine waves 90 degrees out of phase with
each other. One sine wave moves the panning left and right and the one shifted
90 degrees out of phase pans the sound front to back.
The easiest way to do this on the Emulator X or Proteus X is to use two sine
wave LFOs and shift one of them 1/4 cycle using the delay parameter.
To Implement Quad Panning:
1. Let’s start by loading the Proteus X Composer bank.
2. Select P002 Orchestral from the Tree.
3. Open the preset by clicking on the (+) symbol next to the icon.
4. Select the Voice Processing page.
5. Select All in the Voice Selector to select all voices for processing.
6. Select the LFO/LAGS page by clicking on the tab.
7. Select Sine for both LFOs and set up the parameters as shown with a
Frequency of 1 Hz and a delay of .25 seconds for LFO 2. (One quarter of a
cycle equals 90 degrees.) Make sure Key Sync is on.
8. Now moving over to the Cords section, select the 19-27 tab, which has a
few available cords.
- Advanced Applications Guide 1
- Advanced Applications Guide 2
- Table of Contents 3
- Intermediate Lessons 4
- Introduction 7
- 8 EMU Systems, Inc 8
- Synthesizer Signal Path 10
- Released 11
- - 36 Cords 12
- Preferences 13
- MIDI Keyboard 13
- Fundamentals 14
- 14 EMU Systems, Inc 14
- Voice Processing Cords 15
- 16 EMU Systems, Inc 16
- Library 16
- 18 EMU Systems, Inc 18
- 22 EMU Systems, Inc 22
- Phaser 1 23
- 24 EMU Systems, Inc 24
- Create a Stacked Preset: 25
- 26 EMU Systems, Inc 26
- Sampling and Chopping Samples 27
- 30 EMU Systems, Inc 30
- 32 EMU Systems, Inc 32
- Voice 1 Voice 2 Voice 3 34
- Sample 01 Sample 02 Sample 03 34
- 36 EMU Systems, Inc 36
- Destination 37
- 8 Connecting a Volume Pedal 38
- 9 Programming a Filter Pedal 40
- Exploring TwistaLoop 41
- 42 EMU Systems, Inc 42
- 11 Building Your Own Filters 43
- 44 EMU Systems, Inc 44
- Turn up to 100 47
- Echo, Echo 48
- Negative Amount = Rest 49
- Positive Amount = Accent 49
- Function 50
- Generator 50
- Some Things You May Not Know 52
- Voices & Zones 54
- Voice Processing 54
- Other Tricks 55
- 56 EMU Systems, Inc 56
- 15 Streamline Your Banks 57
- 58 EMU Systems, Inc 58
- Preset and Sample Categories 59
- 60 EMU Systems, Inc 60
- Sort by Category 60
- 18 Using an External Editor 61
- 18 Using an External Editor 62
- 62 EMU Systems, Inc 62
- Try it out 62
- 19 Customizing a Drum Kit 63
- 19 Customizing a Drum Kit 64
- 64 EMU Systems, Inc 64
- 70 EMU Systems, Inc 70
- Insert DXi Instrument 70
- Properties Button 71
- Turn TwistaLoop Override On 71
- 74 EMU Systems, Inc 74
- Set Tempo Granularity to 77
- 1 beat for tighter loops 77
- Creating Region Loops 81
- Horizontal Zoom Controls 83
- 84 EMU Systems, Inc 84
- Region Xplode 84
- 24 Cycle Groups 85
- 24 Cycle Groups 86
- 86 EMU Systems, Inc 86
- 88 EMU Systems, Inc 88
- 90 EMU Systems, Inc 90
- Create a Random S/H Effect: 90
- 92 EMU Systems, Inc 92
- Quantizer 93
- Cord Cord 93
- 26 Repeating Octave 94
- 26 Repeating Octave 95
- 27 Voice Delay 96
- Chromatic Glide (Glissando) 97
- 29 Reversed Keyboard 98
- 29 Reversed Keyboard 99
- Special Effects 100
- 100 EMU Systems, Inc 100
- Step 7Step 8 101
- 31 The Backwards Talking Game 102
- Gating Display 103
- 104 EMU Systems, Inc 104
- 32 Machine Gun Drums 105
- 32 Machine Gun Drums 106
- 106 EMU Systems, Inc 106
- Loop Number 107
- 108 EMU Systems, Inc 108
- 110 EMU Systems, Inc 110
- Multi-channel View 113
- 114 EMU Systems, Inc 114
- 116 EMU Systems, Inc 116
- RecordPlay 116
- Advanced Applications 117
- 36 Sostenuto Pedal 118
- Feedback (latches the switch) 119
- Sostenuto Network 120
- 36 Sostenuto Pedal 121
- 37 Creating Unusual Envelopes 122
- LFO modulating Sustain phase 123
- 38 Resampling 124
- Outputs to Inputs 125
- 39 Pulse-Width Modulation 126
- Click the Sample Button 127
- Double-click here to 127
- Loop End 128
- 39 Pulse-Width Modulation 129
- 130 EMU Systems, Inc 130
- To Implement Quad Panning: 130
- 41 X-wave Synthesis 133
- 41 X-wave Synthesis 135
- Original Key Selection 135
- 136 EMU Systems, Inc 136
- 138 EMU Systems, Inc 138
- 42 TwistaWave 140
- 42 TwistaWave 141
- Creating Multiple Loops 141
- 142 EMU Systems, Inc 142
- 144 EMU Systems, Inc 144
- 146 EMU Systems, Inc 146
- Brain Twister 146
- More Experiments 147
- 148 EMU Systems, Inc 148
- Numerics 149
- 150 EMU Systems, Inc 150
- 152 EMU Systems, Inc 152
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