E-Mu PX-7 Specifications Page 236
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224 E-MU Systems
Preset Edit Menu
Low Frequency Oscillators (LFOs)
Low Frequency
Oscillators (LFOs)
A Low Frequency Oscillator or LFO, is simply a wave that repeats at a slow
speed. PX-7 has two LFOs per layer identified on the display as LFO1 and
LFO2.
An LFO can be routed to any real-time control destination using a
PatchCord. LFOs have a myriad of uses, some of which probably haven’t
been thought of yet. The following examples show a few common uses.
• Control the pitch of the sound (LFO -> Pitch). This effect is called
“vibrato” and is an important performance tool. Many presets use this
routing with the modulation wheel controlling “how much” modula-
tion is applied.
• Create a “tremolo” effect by routing the LFO to control the volume
(LFO -> AmpVolume).
• Add a bit of animation to the sound by routing the LFO to control the
filter. Set the PatchCord amount low for a subtle effect.
The LFOs have five parameters: Shape, Sync, Rate, Delay and Variation.
Shape
LFO waveforms have different shapes. The shape of the waveform deter-
mines the effect of the LFO. LFOs have traditionally been used to add
vibrato or repeating movement to a sound. These new shapes offer a lot of
new programming possibilities.
If you modulate the pitch of an instrument, it’s easy to visualize the shape
of the waveform. For example, the sine wave has a smooth, rolling shape
that changes the pitch smoothly. The square waveform changes between
two pitches abruptly. A sawtooth waveform increases the pitch smoothly,
then abruptly changes back down. The available waveforms are shown on
the following page.
L1
LFO1 SHAPE SYNC
sawtooth k
ey sync
- Owners Manual 1
- Table of Contents 2
- E-MU Systems 10
- PX-7 Owners Manual 11
- Introduction 13
- Important Safety Instructions 15
- Maintenance 16
- Instructions 16
- Radio and 17
- Te l evision 17
- Interference 17
- Foreign Language Warnings 18
- - German 18
- PERSONEN 19
- Foreign Language Warnings 21
- Interférences 23
- Radio et 23
- Télévision 23
- Declaration of Conformity 24
- PX-7 Owners Manual 13 25
- Connection 26
- Studio Setup 27
- Performance Setup 28
- Power Down 29
- Sequence 29
- 18 E-MU Systems 30
- Rack Mounting PX-7 30
- Instant Gratification 31
- To Play a Song 33
- To Play a Demo Sequence 34
- To Audition a Preset 35
- R A:off User 35
- Bank Organization 36
- Time to Save? 39
- To Record the Trigger Buttons 39
- T1 TRIGGERS C3 40
- Basic Operations 41
- Mode/View 42
- LED View 43
- Select Section 43
- Edit Section 45
- 34 E-MU Systems 46
- Real-time 47
- Controller 47
- Quick Edit mode 48
- To Quick-Edit a Preset 48
- K1 PROGRAMMABLE KNOBS 49
- Multichannel Pan Knobs 50
- Trigger/Mute 51
- Touchstrip 52
- Tr anspose 52
- Keypads & 52
- MIDI BANK SELECT 55
- kit: Sympel 56
- Navigator 57
- 46 E-MU Systems 58
- Sound Navigator 58
- Start of IT 62
- The Song Track 63
- Rock This 64
- PX-7 Owners Manual 53 65
- Pattern Mode 65
- What you play 66
- Beats fall on 66
- 01 REC+ Ln:04 Bar: 01:1 68
- Saving Patterns 71
- Using Realtime Repeat 72
- Automatic Channel Assignment 73
- Quan: 16 Met: off CntIn: 74
- What is Grid Recording? 75
- 01 GRID K: D5 76
- B: 1. 1 03 V: 127 76
- B: 1. 1 Vel: 127 79
- kit:80’s Tones 81
- Pattern Edit 82
- To Set the Metronome 84
- Loop Section 85
- TEMPORARY BAR REGION 85
- In Song Mode 86
- Resolution: 8 87
- Amount: 50% 87
- Quantization 87
- 30% Swing 88
- Scale/Shift Start 89
- SCALE/SHIFT START TIMES 89
- SELECT TRACKS AND RANGE 90
- SCALE/SHIFT NOTE DURATION 90
- SELECT TRACKS 91
- THIN EVENTS 92
- 84 E-MU Systems 96
- ERASE TRACK 97
- Copy Track to 99
- COPY TRACK TO CLIPBOARD 99
- Paste x3 100
- Apply Clipboard 101
- Settings 101
- Ch. 1 + 2 + 4 + 8 102
- - - PERFORM OPERATION? - 103
- COMBINE SELECTED TRACKS 103
- SELECT TRACKS 103
- EXPLODE 103
- Track Channel Destination 104
- Multichannel Track 105
- Recording 105
- 01 CHANNEL ASSIGN 105
- 94 E-MU Systems 106
- Sequencer 106
- Pattern Edit Menu 106
- 002.03.008 107
- 002.03.004 108
- 003.02.026 109
- 001.01.001 110
- 003.01.000 112
- Revert to Saved 114
- REVERT TO SAVED PATTERN 114
- Song Track 117
- Pattern Track 117
- Step Repeat 118
- Realtime Song 119
- Erasing Controller Data 121
- Song Edit 122
- Setting Meter 123
- (Time Signature) 123
- EVENT SOURCE 123
- QUANTIZE Resolution: 16 124
- Key Range: C-2 to:G8 125
- ERASE EVENTS 126
- SELECT KEY RANGE 126
- TRANSPOSE 127
- SCALE/SHIFT VELOCITY 128
- Cut Track to 129
- Clipboard 129
- CUT TRACK TO CLIPBOARD 129
- 01 CHANNEL ASSIGN 132
- Channel: MultiA Dest:both 132
- REVERT TO SAVED SONG 136
- Performance 137
- Features 137
- Using the Repeat 139
- Button for Live 139
- 01 REC Ln:04 Bar: 01:1 139
- Hold TAP while selecting 140
- Trigger Buttons to 140
- Track Priority 141
- Using the Internal 142
- Sequencer with an 142
- External MIDI 142
- Keyboard 142
- XL-7, MP-7 or PX-7 142
- How to Record the 143
- Audition Riffs 143
- 08 CHANNEL ASSIGN 143
- 132 E-MU Systems 144
- Applications 144
- Controllers Menu 145
- Realtime 146
- Control 146
- Functions 146
- PX-7 Owners Manual 135 147
- Local Control On/Off 147
- Trigger Buttons 149
- Function 149
- TRIGGER BUTTONS FUNCTION 149
- Play Note Events 149
- T1 TRIGGERS D3 150
- Triggers Pattern 151
- Trigger Mode 152
- Quick Select 152
- Programmable 152
- PX-7 Owners Manual 143 155
- MIDI Footswitch Assign 155
- 144 E-MU Systems 156
- Global Menu 157
- Restoring 158
- Multisetups 158
- RESTORE MULTISETUP 158
- 03 Jazzercide 158
- To Save a Multisetup: 159
- Defining 160
- Parameters 160
- Played Velocity 161
- Result Velocity 161
- MIX OUTPUT 162
- MIDI CHANNEL 163
- Master Effects 164
- 152 E-MU Systems 164
- Master FXA 165
- Algorithm 165
- MASTER FXA ALGORITHM 165
- 154 E-MU Systems 166
- B Effect Types 167
- Miscellaneous 168
- 158 E-MU Systems 170
- Miscellaneous Parameters 170
- MIDI Menu 171
- To Change the Base Tempo 172
- RECHANNELIZE INPUT 173
- 162 E-MU Systems 174
- Knobs Output MIDI 174
- PX-7 Owners Manual 163 175
- External Song Start/Stop 175
- 164 E-MU Systems 176
- MIDI Enable 176
- MIDI Program 177
- Change -> Preset 177
- Current Multisetup 178
- Program /Preset Map 178
- Tuning Tables 178
- SEND MIDI SYSEX DATA 179
- 168 E-MU Systems 180
- MIDI Mode 180
- Programming Basics 181
- Summing Nodes 182
- Modulation 183
- PatchCords 184
- Envelope 185
- Generators 185
- Tempo-Based Envelopes 186
- Frequency 187
- Oscillators 187
- LFO Synced to 1/4 Note Clock 189
- Destinations 190
- Processors 191
- Flip-Flop 192
- Quantizer 192
- Lag Inputs 192
- Real Rocket Science 194
- Velocity 195
- 184 E-MU Systems 196
- Preset Modulation Processors 196
- PX-7 Owners Manual 185 197
- Dynamic 199
- Low Pass 200
- Band Pass 201
- Amplitude 202
- Parametric 203
- 192 E-MU Systems 204
- Dynamic Filters 204
- Instrument 205
- Z-Plane Filter 205
- MIDI Channels 206
- & Real-time 206
- Controls 206
- Controllers 207
- Stereo Mix 208
- MIX OUTPUT 209
- Send (1-4) or to “Preset” 210
- Preset Edit Menu 211
- Four Layer 212
- Architecture 212
- PX-7 Owners Manual 201 213
- Selecting Layers 213
- Defining Layer 214
- PX-7 Owners Manual 203 215
- Defining Key Range 215
- C0 C1 C2 C3 C4 C5 C6 216
- Switch Switch Switch 216
- Layer 1 Layer 2 218
- Fade Fade Switch 218
- PX-7 Owners Manual 207 219
- Realtime Control Value 220
- PX-7 Owners Manual 209 221
- 210 E-MU Systems 222
- Tr ansposing the Instrument 222
- PX-7 Owners Manual 211 223
- Tu n i ng 223
- (using factory envelope) 225
- Delay & Key-up 226
- SOUND START DELAY 227
- ASSIGN GROUP 229
- To Set up a Glide Rate Knob: 230
- Filter Types 231
- FILTER 233
- Freq: 2 233
- 55 Q: 019 233
- To Turn on Envelope Repeat: 234
- FILTER ENVELOPE 235
- Repeat: off 235
- Low Frequency 236
- Oscillators (LFOs) 236
- 0 238
- Variation 239
- 228 E-MU Systems 240
- Control Value Applied 241
- Jack Detect 245
- FXA ALGORITHM 246
- Lg Concert Pan 246
- Initial Controller 250
- INITIAL CONTROLLER AMT 250
- TEMPO OFFSET 253
- Arpeggiator/Beats Menu 255
- C01A V127 P00 256
- A:P User 256
- arp: Sine Drum 256
- Arpeggiator 257
- 246 E-MU Systems 258
- PX-7 Owners Manual 247 259
- Note value has no effect 259
- “pattern.” 259
- 248 E-MU Systems 260
- The note-on time is used 260
- “Duration” on page 251 260
- Extension Count 261
- Key Sync 262
- Quantize 262
- PX-7 Owners Manual 251 263
- Pre-Delay Duration Post-Delay 264
- Send MIDI 266
- Exclusive Data 266
- To Select the Pattern to Edit 267
- Key Offset 267
- + OffsetOffset 268
- To Edit a User Pattern 269
- To Name a User Pattern 269
- Multichannel 270
- Arpeggiating 270
- USER PATTERN NAME 270
- Mod Sycle 270
- Here’s how it works: 271
- Factory Setup 272
- Beats Channel (BtsCh) 273
- Trigger Channel (TrigCh) 273
- bts: SynhissOrgan 274
- Beat Busy (BtsBusy) 276
- Brings in Parts 277
- Removes Parts 277
- Beats Keys/Trigger 278
- BEATS KEYS LAYOUT 278
- Negative Offset 279
- BEATS PART TRANSPOSE 280
- +00 semitones 280
- To Assign a Part to a Group: 281
- To Assign the Master Riff: 281
- To Set the Riff Tempo Mode: 282
- Effects 283
- Overview 283
- 272 E-MU Systems 284
- Effects Overview 284
- Effect Types 285
- High Frequency Damping 286
- Feedback 286
- LFO Rate 286
- Programmed 287
- 276 E-MU Systems 288
- Flexible Effects 290
- “multi” for the mode 291
- FX MULTIMODE CONTROL 292
- Effect B 293
- Effect A 293
- General Effect 294
- Descriptions 294
- PX-7 Owners Manual 283 295
- General Effect Descriptions 295
- 284 E-MU Systems 296
- Save/Copy Menu 297
- To Save a Preset 298
- To Save a Song 298
- Copying 299
- Information 299
- COPY CORDS User 300
- Source Preset 300
- To Copy a Preset PatchCord 301
- To Copy the Sequencer Pattern 303
- To Copy the Song 303
- Authoring 304
- Compact Flash 307
- 296 E-MU Systems 308
- Duplicate Flash 308
- Preset Programming 309
- 298 E-MU Systems 310
- Editing Presets 310
- To Chorus a Layer 311
- To Setup the Volume Envelope 312
- PX-7 Owners Manual 301 313
- FILTER 314
- Freq: 2 314
- Adding the Filter Envelope 315
- To Setup the Filter Envelope 315
- PX-7 Owners Manual 305 317
- 306 E-MU Systems 318
- Linking 320
- Appendix 321
- Knob Controller 322
- PX-7 Preset 322
- Categories 322
- Linked Presets (lnk:) 323
- Retrigger/Strip 323
- Up Layer 323
- Play Through 323
- User Bank 0, PX-7 Bank 0 324
- User Bank 1, PX-7 Bank 1 325
- User Bank 2, PX-7 Bank 2 326
- User Bank 3, PX-7 Bank 3 327
- Song Listing 328
- Riff Listing 329
- 320 E-MU Systems 332
- Instrument Notes 332
- Instrument Listing 334
- Example 339
- Percussion 339
- Instrument # 2 340
- Instrument # 3 341
- Instrument # 4 342
- Instrument # 6 342
- Instrument # 5 343
- Instrument # 7 344
- Instrument # 51 344
- Instrument # 49 345
- Arp Map Example 346
- 336 E-MU Systems 348
- Velocity Curves 348
- PatchCord 349
- Amount Chart 349
- Shift Key 350
- Shortcuts 350
- Rhythmic 351
- Notation 351
- Signatures 351
- Diagrams 352
- Block Diagrams 353
- Pads Routing 353
- Triggers & 355
- Quick Edit 356
- Expansion 357
- Sound Sets 357
- 346 E-MU Systems 358
- E-MU Expansion Sound Sets 358
- Installing 359
- Sound SIMMs 359
- Install a New ROM SIMM 360
- Reassemble the Unit 360
- Problems? 361
- MIDI Timing & Sync 362
- 363
- Vel->amp 366
- Operating System Upgrades 367
- MIDI Device Inquiry Responses 368
- Received Channel 369
- Commands 369
- Technical 370
- Specifications 370
- Props PROJECT 371
- Warranty 372
- Restrictions 372
- How To Obtain 373
- Warranty Service 373
- 362 E-MU Systems 374
- Numerics 375
- 378 E-MU Systems 390
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