Akai XR20 Reference Manual - V1.3 - zZounds.com

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The Two Types of Patterns The XR20 introduces exciting new Song construction techniques. The XR20 excels at live performance—something usually not associated with drum machines. The key to using these advanced features is to understand the different types of available Patterns. Preset Patterns provide a variety of hip-hop rhythms programmed by professional producers. User Patterns are Patterns you can program, edit, and save. The PRESET/USER button selects between these two master banks of Presets. It is important to note that the only way to modify a Preset Pattern is to copy it to a User Pattern, where it can be edited. The Four Types of Sub-Patterns There are 100 of each type of Pattern, numbered 00-99. However, each numbered Pattern actually contains four different "Sub-Patterns": A pair of independent Main Patterns (A and B, selected by their respective buttons). A pair of associated Fill Patterns (A Fill and B Fill, selected by pressing the FILL button when either A or B is selected). The Fills primarily provide transitional Patterns between Main Patterns, which makes for more realistic drum parts. The associated Fill Patterns share the same length, Drum Set, and name as their Main Patterns (e.g., if A is 16 beats, A Fill is 16 beats). Otherwise, they are independent. The reason for pairing the two different A and B Patterns together is simply so that you can switch back and forth between them rapidly in live performance or while improvising. Note that a Pattern’s A, B and FILL Sub-Patterns have equal lengths and use the same Drum Set (collection of drum, 1-shot and synth sounds, as well as effects parameters). Note that even though there are "only" 100 Patterns, the A and B variations double that to 200 Patterns, and the Fills double that again to 400 Patterns. Added to the Preset Patterns, 800 total Patterns are available. How "Looping" Simplifies Recording To simplify recording, a Pattern will "loop" over and over again. Example: Suppose you want to record an 8-beat pattern. While recording, the pattern will record through all 8 beats, then immediately jump back to the beginning and continue recording through all 8 beats again. The XR20 will remain in record mode, and continue to loop, until you press STOP or switch over to Pattern Play mode. You will hear any previously-played parts as you record new parts. You can also erase drum hits while the pattern is looping to correct for errors. 6
What's a Voice? Each of the 12 large pads triggers a voice. A voice is a sound-generating element with several variable parameters: sound assignment, tuning, volume, output assignment (the voice's audio output can go to either one of two sets of stereo outputs, and furthermore, to anywhere within the stereo field of the chosen set of outputs), MIDI note number, etc. Each pad is velocity-sensitive: the harder you hit the pad, the louder the sound assigned to the pad will play. Thanks to the dynamic articulation techniques mentioned earlier, the timbre will often change as well, just like the way that "real" instruments produce sound when played with different amounts of force. There are eight levels of pad volume resolution, from soft to loud. However, when using the XR20 as a drum sound expander and triggering sounds via MIDI, they respond to all 127 MIDI volume levels. 7
Page 3: TABLE OF CONTENTS INTRODUCTION 5 WE
Page 8 and 9: CONNECTION DIAGRAM 1. Plug ¼” TS
Page 10 and 11: 6. A & B - Each Pattern consists of
Page 12 and 13: REAR PANEL PHYSICAL LAYOUT 12 3 6 4
Page 14 and 15: BASICS HOW TO COMMUNICATE WITH THE
Page 16 and 17: THE INSTRUMENT LAYERS The XR20 allo
Page 18 and 19: Changing Pattern Tempo The tempo ra
Page 20 and 21: The MUTE Button The MUTE button can
Page 22 and 23: PATTERN PLAY MODE Pattern Play mode
Page 24 and 25: PAGE 2: INSTRUMENT LAYER VOLUME Thi
Page 26 and 27: PAGE 7: ATTACK ENVELOPE (SYNTH ONLY
Page 28 and 29: PAGE 12: OUTPUT Background The XR20
Page 30 and 31: RECORD SETUP Several parameters, su
Page 32 and 33: PAGE 6: VELOCITY SENSITIVITY Veloci
Page 34 and 35: EDITING PATTERNS - ERASE FUNCTIONS
Page 36 and 37: EDITING PATTERNS - TRANSPOSITION Ea
Page 38 and 39: SONG MODE After creating the Patter
Page 40 and 41: MANUAL SONG CREATION (SONG STEP EDI
Page 42 and 43: SETTING SONG TEMPO There are two wa
Page 44 and 45: ERASING AN ENTIRE SONG 1. The XR20
Page 46 and 47: Page 3 / TRANSMIT MIDI NOTES (DRUM
Page 48 and 49: Page 7 / MERGE MIDI IN WITH MIDI OU
Page 50 and 51: Drum note map in MULTI-DRUMSET mode
Page 52 and 53: Page 15 / LOW BATTERY WARNING (LO B
Page 54 and 55: APPLICATIONS MIDI SYNC APPLICATIONS
Page 56 and 57:
UNDERSTANDING RHYTHMIC NOTATION Mea
Page 58:
KEY FEATURES Professional drum mac
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Akai XR20 Reference Manual - V1.3 - zZounds.com

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