Delptronics Little Drummer Boy Manuel utilisateur

DELPTRONICS LDB-1SE

Little Drummer Boy

Analog Drum Machine

User Manual

The most up-to-date version of this manual can be found at:

https://delptronics.com/documents/LDB1seUserManual.pdf

LDB-1se User Manual 2

Introduction

The LDB-1se is the second edition of Delptronics’ modern classic LDB-1 “Little Drummer Boy” Analog Drum

Machine. Our goal was to recreate the warm analog sounds of the legendary 80's machines, like the Ro-

land TR-606 and TR-808. The brain of the LDB-1se is a microcontroller that is more powerful that anything

available in the 80’s, enabling us to provide all the features of a modern drum machine sequencer.

All of this comes in an inexpensive, battery powered machine.

Features

•Eight Analog Drum Sounds

oKick Drum

oSnare Drum

oLow Tom

oHigh Tom

oWood Block

oHand Clap

oClosed Hi-hat

oOpen Hi-hat

•Eight Voice Polyphony

oAll instruments can be played simultaneously,

Including the open and closed hi-hats

oClosed hi-hat gates open hi-hat

•Play Modes

oIndividual instruments and rolls

oPatterns, including songs up to 15 Patterns

oMultiple modes of Fills and Overlaid patterns

oPer-instrument Mute and Solo modes

oMulti-level Swing and Randomness

•Programmability

o48 Pattern memory (4 banks of 16 patterns)

o4 Songs per bank of up to 15 patterns each

oStep Edit and Pad Record programming modes

oConfigurable Options (MIDI channel, trigger modes, etc)

oAll data is retained without battery power

•Connectivity

oPowered by built-in 9V battery, or standard pedal power supply

oMIDI Input for playing individual instruments and/or MIDI clock/start/stop

oDIN Sync Input for both clock and gate (start/stop)

oAnalog Clock Input

oAnalog Reset or Gate Input

oAnalog Trigger Output on selected steps and/or instruments

LDB-1se User Manual 3

Quick Start

This manual gives you all the information you need to use every one of the many features of the LDB-1se

Analog Drum Machine. But, before diving into the details, here is a quick start so you can begin playing

rhythms right away.

Power Up

1. Insert a 9V battery, or plug in an AC adapter (AKA wall wart). The power jack on the LDB-1se is a cen-

ter-negative, type-M power jack. You can use just about any standard 9 to 10 volt pedal power sup-

ply. Connecting a power supply with too high voltage will damage the LDB-1se.

2. Insert a mono 1/4" plug into the Audio output jack and plug the other end of the cable into your am-

plifier or mixer.

3. Press the red button on the back to turn on the LDB-1se.

Play Drums

4. The machine starts up in the “Pad Play” mode.

5. Press the buttons above the instrument names to play individual instrument sounds.

Play Patterns

6. Press and hold the Mode button, then press button #1 (which is labeled 1 / 9 / Kick Drum).

7. You are now in the “Pattern Play” mode.

8. Press the Play button to start the pattern playing.

9. Rotate the Tempo knob to change the speed of the pattern.

10. Press any of the number buttons along the bottom to play a different pattern.

11. Press and hold the Select button while pressing any of the number buttons to make a multiple pat-

tern song. The patterns will play one after another, then repeat.

Read the Manual

12. Now that you have that out of your system, read the rest of the manual to get the most out of your

LDB-1se Drum Machine!

LDB-1se User Manual 4

Drum Machine Basics

The LDB-1se has a very simple interface for playing and editing rhythms. If you have used a drum machine

before, then the LDB-1se will be very familiar to you. If this is your first drum machine, then the infor-

mation below will help you get started.

First, let’s define a couple of drum machine terms: Step, Pattern, and Song. A step is one beat, typically a

sixteenth note. A pattern is a sequence of steps. A song is a sequence of patterns.

Drum Tabs

Take a look at the diagram below. It represents one of the most famous drum beats of all time, the Amen

Break. The diagram is in a format called drum tablature or, more commonly, a drum tab. Drum notation

can also be written in musical note form, but tabs are much easier to visualize.

|1 + 2 + 3 + 4 + |1 + 2 + 3 + 4 + |1 + 2 + 3 + 4 + |1 + 2 + 3 + 4 + |

OH |----------------|----------------|----------------|----------x-----|

BD |o-o-------oo----|o-o-------oo----|o-o-------o-----|--oo------o-----|

Drum tabs are laid out in a grid with the drums (usually abbreviated) running vertically along the left side

and the steps horizontally. The tab above is four measures of 16 beats each. In drum machine terminology,

that is one song consisting of four patterns of 16 steps each. Each pattern can be at most 16 steps, how-

ever a pattern can have fewer steps. For example, patterns in ¾ time typically have 12 steps.

To play the above tab, a drummer would hit the bass drum (BD) and closed hi-hat (CH) simultaneously on

the 1st and 3rd beats, the snare drum (SD) and closed hi-hat simultaneously on the 5th beat, the closed hi-

hat alone on the 7th beat, the snare drum alone on the 8th beat, and so on.

There are many websites that give the drum tabs for popular songs. You will get millions of results if you

search for “drum tabs”.

LDB-1se Instruments

Instrument Drum Tab Abbreviation

Open hi-hat cymbal OH, sometimes H or HH with an O

Closed hi-hat cymbal CH, sometimes H or HH with an X

Hand Clap CP

Wood Block WB

High Tom-tom Drum HT, T, T1, T2, or TT

Low Tom-tom Drum LT, F or FT (floor tom)

Snare Drum SD or S

Bass (or Kick) Drum BD, B, B1, B2, or BA

Instrument Substitutions

If you have a drum tab that uses instruments not contained in the LDB-1se, you can substitute. For exam-

ple, you can use wood block in place of claves (CL) or rim shot (RS), and the open hi-hat can stand in for

other cymbals (C/CY), crash cymbal (CC), ride cymbal (RC) or splash cymbal (SC).

LDB-1se User Manual 5

Drum Machine Basics (continued)

Accents

In drumming, an accent is when an instrument is hit a little harder and louder. In drum tabs, an accented

instrument can be indicated with a capital Xor Owhereas the unaccented instrument will be indicated

with a lowercase letter. Drum tabs written specifically for drum machines sometimes show the accent as

a separate instrument. In that case, when there is an Xor Oin the accent row, it means that all instruments

on that beat should be louder.

The LDB-1se does not have a separate accent feature; however, accents can be simulated quite effectively.

For accented bass or snare drums, you can play the low tom on the same beat to get a louder, fuller sound.

For an accented cymbal, you can play the open and closed hi-hat simultaneously which sounds very much

like hitting the open hi-hat harder.

TR or x0x Style Programming

The particular style of drum pattern editing used in the LDB-1 is called TR or x0x. Both names come from

the Roland series of drum machines, such as the TR-606, TR-808, or TR-909. This style of pattern program-

ming interface shows you the steps that are turned on for one instrument at a time. It is equivalent to

seeing a single row of a drum tab. The LDB-1se uses this style of programming in its Step Edit mode. The

LDB-1se also has a Pad Record mode, wherein a pad is pressed to record a drum hit on a step in real-time.

LDB-1se User Manual 6

Controls

Function Grid

The grid on the control panel shows the possible modes and set functions.

Tempo Knob

The Tempo knob sets the tempo of the currently playing pattern or song. The numbers around the Tempo

knob on the control panel show the beats per minute (BPM). The position of the Tempo knob is ignored

if you are using an external clock source.

Play/Stop Button

The Play/Stop button starts or stops the currently pattern or song. The Tempo LED is illuminated when a

pattern/song is playing and blinks with the tempo. When a pattern/song is not playing, pressing the Play

button will start it at the beginning. When a pattern/song is playing, pressing the Play button will stop it

immediately.

Holding hold down the Set button while pressing the Play button changes its behavior. When a pat-

tern/song is playing, pressing Set + Play will stop play at the end of the current pattern, as opposed to

immediately. When a pattern/song is not playing, pressing Set + Play will continue playing at the point at

which it stopped, as opposed to at the beginning of the first pattern.

LDB-1se User Manual 7

Controls (continued)

Mode Mode Button

The Mode button changes the basic mode of operation of the drum machine. You can press the Mode

button at any time to see what the current mode is. When you hold down the Mode button, one of the

number LEDs will be blinking, indicating the current mode. Release the Mode button to stay in the current

mode, or hold down the Mode button then press one of the eight number buttons to switch to a different

mode. The previous mode is shown on the second row of LEDs. This makes it easy to switch between two

modes without having to read the control panel during performance.

The details of each mode are described in the following sections of this manual.

Set Set Button

The Set button performs various actions for editing patterns, changing the playback of patterns, and load-

ing and saving patterns or songs. The second row of the function grid shows the settings that are associ-

ated with each of the number buttons. Not all set functions are available in all modes.

The details of each setting are described in the Set Functions section of this manual.

Row Row Button and Row LEDs

The Row button is an important concept in the operation of the LDB-1se. Pressing the Row button changes

the state of the two Row LEDs. Only one of the Row LEDs is illuminated at a time. The illuminated Row

LED indicates which row of numbered LEDs are affected when pressing a number button. That is all the

Row button does, it has no additional meaning or function.

Num Number Buttons

The eight buttons and 16 LEDs across the bottom represent either the eight instrument sounds, the 16

steps in a pattern, or various settings, depending on the current mode. For simplicity, they are always

referred to in this manual as the number buttons and number LEDs.

Select Select Button

The Select button is used to select various options depending on the current mode. It also has special

meaning when changing certain settings. Refer to the table below. Additional detail is given in the appli-

cable sections of this manual.

Mode

Select Button Function

Set

Select Button Function

Pattern Play

Add Pattern to Song

Solo/Mute

Turn On/Off

Fill Play

Repeat Fill

Rand

Randomize All Instruments

Overlay Play

Queue Overlays

Mods

Modify All Instruments

Pad Play

Select Roll Timing

Length

N/A

Pad Record

Select Roll Timing

Clear

Clear All Instruments

Step Edit

Select Instrument

Bank

N/A

Trigger Edit

Edit Trigger Measures

Pattern

Add Pattern to Song*

Config Edit

Select Config Page

Save

N/A

LDB-1se User Manual 8

Pattern Play Mode

There are 48 patterns organized into four banks of sixteen patterns each.

Num Patterns: Pressing one of the number buttons selects the pattern to play within the current bank.

The LED corresponding to the currently playing pattern is illuminated. If a pattern is playing when a dif-

ferent pattern is selected, the new pattern will not start playing until the current pattern finishes.

Row Pattern Group: Press the Row button to switch between patterns 1-8 or 9-16.

Play Start / Stop: The play button starts or stops playing the selected pattern/song. While playing, the

selected pattern(s) will repeat continuously.

Select Add Pattern to Song: Hold the Select button while pressing any of the number buttons to create

a multiple pattern song. The patterns will play one after another, then repeat.

Set Available Functions: Solo/Mute, Swing/Rand, Bank, Song, Save

Songs

A song is a series of patterns that play in a repeating sequence. To add a pattern to the song, hold the

Select button while pressing a sequence of number buttons.

Holding Select while pressing a number button adds a pattern to the song, even if you have previously

released Select, even if you have changed a setting, or switched modes.

To clear the song and play a single pattern, just press a number button without holding Select.

You can create a song while no patterns are playing. The song will begin playing when you press the Play

button.

Patterns in the song do not need to be contiguous or sequential. For example: 2, 1, 5 is a valid song.

Patterns can repeat in the song. For example: 1, 1, 1, 2 or 1,2,1,3. Songs like those are very useful musi-

cally.

You can press the Row button while holding the Select button.

A song can be up to 15 patterns.

A song can be saved and recalled. See the Set: Save and Set: Song sections for details.

LDB-1se User Manual 9

Fill Play Mode

A fill is a pattern that is played in the middle of a song. When a fill is queued, it will play after the currently

playing pattern ends. When the fill ends, the normal pattern or song will continue.

Num Play/Queue Fill: Pressing one of the number buttons selects the fill pattern to be played. You can

press a sequence of number buttons and the fills will be queued (up to 32). Each fill in the queue will be

played in its entirety, then the currently playing pattern or song will continue. You can queue the same fill

pattern more than once.

Select Repeat Fill: If you hold the Select button and hold a number button, the selected fill pattern will

repeat until you release the Select and/or number button.

Set Available Functions: Solo/Mute, Swing/Rand, Bank, Pattern.

Notes

Fill patterns can be queued when the song is stopped. When the Play button is pressed, the fill patterns

will be played one time, and then the song will begin. In this case, the fills are intro patterns.

Fills play at the time scale of the fill pattern. For example, if you have a pattern or song playing 16th notes,

and you play a fill that is 32nd notes, the fill will play faster.

Overlay Play Mode

An overlay is a pattern that is played on top of the currently playing pattern. In essence, it merges the two

patterns. An overlay pattern can be simple, like just a few claps, or it can be as complex as you wish.

Num Overlay Patterns: Pressing one of the number buttons selects pattern to be overlaid. You can press

multiple number buttons and all of the selected patterns will be overlaid.

Select Queue Overlays: If you hold the Select button and press one or more number buttons, the se-

lected patterns will be will be queued (up to 32). Each overlay will be played in its entirety on top of the

currently playing pattern or song. When the overlays are finished, the currently playing pattern or song

will continue as normal. You can queue the same overlay pattern more than once.

Set Available Functions: Solo/Mute, Swing/Rand, Bank, Pattern.

Notes

Both queued and constant overlays can be played at the same time.

Overlays play at the time scale of the underlying pattern. For example, if you have a pattern or song play-

ing 16th notes, and you overlay a pattern that is 32nd notes, all the patterns will play 16th notes.

LDB-1se User Manual 10

Pad Play Mode

In this mode, you can play instruments immediately by pressing the number buttons.

Num Instruments: Pressing the number buttons will play the corresponding instrument. If a pat-

tern/song is playing, the instrument will sound in time with the tempo (AKA quantized).

Row Individual / Rolled: When the top Row LED is lit, pressing a number button will play the instrument

once. When it the bottom Row LED is lit, holding a number button will roll (repeat) the instrument as long

as the button is held down.

Select Roll Timing: Hold the Select button and press a number button to set the Roll Timing. Refer to

the table below. A beat is a quarter note. A beat is every fourth step in 4/4 time. If the time scale is set to

triplets, then a beat is every third step (and option 7 is the same as 4).

Every

step

Every other

odd step

Every other

even step

Every beat

starting on

1st step

Every beat

starting on

2nd step

Every beat

starting on

3rd step

Every beat

starting on

4th step

Set Available Functions: Solo/Mute, Swing/Rand, Bank, Pattern.

Pad Record Mode

This is one of two modes in which you create and edit rhythm patterns. In the Step Edit mode you select

an instrument and set the steps on which that instrument will play. In the Pad Record mode, instruments

are added to the currently playing pattern when you press the number (instrument) button. If no pattern

is playing, the number buttons act just like in pad play mode.

Num Drums: Pressing the number buttons will record the corresponding instrument into the playing

pattern on the beat that is playing when you press the button.

Row Individual / Rolled: Works as in Pad Play Mode above, except that the instruments are recorded

into the playing pattern.

Select Roll Timing: See the description of Roll Timing in Pad Play Mode above.

Set All Set Functions are available in the Pad Record Mode.

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