AudioRealism Bass Line Manuel utilisateur

Bass Line

Bass LineBass Line

Bass Line

Users Guide

Bass Line – User’s Manual 2

Features ...............................................................................................................................3

Introduction.........................................................................................................................3

Installation...........................................................................................................................4

Conventions and definitions................................................................................................4

Architecture.........................................................................................................................4

Layout..................................................................................................................................5

Control Section....................................................................................................................6

Midi Led......................................................................................................................6

Sync.............................................................................................................................6

Mode............................................................................................................................6

Option..........................................................................................................................6

Pattern..........................................................................................................................7

Pattern selector............................................................................................................8

Tempo..........................................................................................................................8

Synthesizer Section.............................................................................................................9

Pattern programming Section............................................................................................10

Programming patterns .......................................................................................................11

Time Mode................................................................................................................11

Slides.........................................................................................................................11

Accents......................................................................................................................11

Ties............................................................................................................................11

Midi CC.............................................................................................................................12

Midi Learn.................................................................................................................12

Automation of Controls.....................................................................................................12

Configuration ....................................................................................................................13

Using Pattern Mode...........................................................................................................14

Pattern Sequencing....................................................................................................14

Pattern Sequencing without retrigger........................................................................14

Using Note Mode ..............................................................................................................15

Importing Rebirth 338 Patterns.........................................................................................16

Freebee/Text pattern format..............................................................................................16

Programs/Banks ................................................................................................................16

Copying Patterns between Instances.................................................................................16

Thanks...............................................................................................................................17

Appendix: Specifications ..................................................................................................18

Bass Line – User’s Manual 3

Features

Bass Line Emulation

High pass filter

Full Midi CC control with learning function

18dB (classic) or 24dB selectable filter

Analog tuning mode

Internal sequencer

Rebirth RB-338 Pattern Import

Freebee/Lush pattern import/export

Three Midi modes

VST Host sync

Integrated distortion unit

Introduction

Thank you for using AudioRealism Bass Line! The Bass Line is a monophonic

programmable synthesizer plug-in which can memorize and playback bass patterns in

sync with a host sequencer. The voice of the original Bass Line is well known and has

become standard studio equipment. The AudioRealism Bass Line is a digital recreation of

that instrument, offering every characteristic of the analog instruments while maintaining

all the benefits of digital algorithms. More benefits of moving into the digital realm are

for example unlimited (that the CPU can support) number of instances and control

automation allowing previously unheard effects with the well known voice.

AudioRealism Bass Line should be easy to use if you are familiar with other virtual

instruments or the original Bass Line.

Bass Line – User’s Manual 4

Installation

1. Locate the executable Install.exe and run.

2. The installer will suggest a path to install the plug-in into.

3. If the path is correct, click <Install> else browse to the path where you keep your

VST plug-ins and then click <Install>.

4. The plug-in installation should be complete.

Some hosts need to rescan the plug-is directory to make the new plug-ins visible from the

host. Consult your host documentation. In case of problems, please contact

[email protected].

Conventions and definitions

1. AudioRealism Bass Line is often referred to as ABL in this document.

2. A Midi note/event is an entity that is sent from the host to the plug-in.

3. A note is an entity that the plug-in plays. It contains information about pitch,

slide, accent and time (rest or 16th ).

4. A pattern consists of a number of steps (1-64). Each step has a designated note.

5. A program consists of synth settings (like cutoff freq., resonance, waveform etc.)

6. A state contains the modes (like Midi and sync) of the plug-in, the step number

and configuration information.

7. A bank consists of a 16 programs, 128 patterns and current state. The bank can

usually be saved and loaded by the host as an .fxb file.

8. The configuration file Config.ini contains information about how the plug-in

should be initialized on start up.

9. The file MidiCC.ini contains information about the assigned MidiCC’s and is

saved automatically when the plug-in closes.

Architecture

The architecture of the original Bass Line synthesizer is rather simple. It has one voltage

controlled oscillator (VCO), one voltage controlled filter (VCF) and one voltage

controlled amplifier (VCA). The VCF and VCA are controlled by an envelope generator

(EG) with decay and modulation amount controls. All modules are controlled by a digital

sequencer. ABL emulates each of these modules down to component level where even

effects as hysteresis are taken into account.

Bass Line – User’s Manual 5

Layout

The AudioRealism Bass Line user interface is divided into three sections:

1. Control

2. Synthesizer

3. Pattern programming interface

ABL is operated by using the mouse to change the different controls.

Knobs – Click the knob and drag the mouse. Dragging the mouse up or down in

linear mode turns the knob clockwise or counterclockwise. For more precise

settings hold down the <Shift> key while dragging the mouse. It is possible to

alter the knob mode (see Configuration section).

Buttons – Single click buttons

Switches – Click and drag right or left to slide into the desired position

Menus – Click the down arrow to reveal the menu

Value displays – Click the up or down arrows to change value. It is also possible

to click the value field and drag the mouse to rapidly change the value.

Control

Synthesizer

Pattern interface

Bass Line – User’s Manual 6

Control Section

The control section is used to specify how ABL should operate.

Midi Led

The Midi Led will light when there is Midi activity sent to the plug-in. The plug-in

receives Midi information on all 16 channels.

Sync

The sync mode switch has two settings: Internal and Host. To change the settings click

on the switch and slide the mouse in the direction you wish to set the switch.

In Internal sync mode it is possible to set the tempo between 50 and 250 BPM

In Host sync mode the tempo control has no effect as the tempo is read from the

host, and cannot be altered from ABL.

Mode

The Midi Mode switch operates as the Sync switch. The two settings are:

PTN - Patterns are selected from Midi notes. Each Midi note corresponds to one

pattern, with the lowest possible note being pattern 0 (zero) and the highest note

pattern 127. A note on message will start a pattern and a note off message will

stop the pattern.

NOTE - Notes are played directly from the Midi notes and the internal sequencer

is disabled. This allows ABL to be played as normal synthesizer. If two notes

overlap then a slide will occur between those notes. If a note with velocity over

100 (default) is played then an accent will be activated.

Option

The option menu is activated by clicking on the text or near the arrow. This menu allows

you to alter the way ABL functions.

Midi CC

Activate Midi learn Selecting this item will activate Midi learn and change the

item to Deactivate Midi learn.

Emulation

Switch to 24dB filter The filter can be switched to 24dB/octave attenuation.

The number denotes the slope of the filter cutoff in

decibels per octave. The 18dB/octave filter (modeled

after the original Bass Line) has a brighter sound than

the 24dB filter.

Switch to non-exact tuning

Switching to non-exact tuning makes the oscillator out

Bass Line – User’s Manual 7

of tune, especially in the upper range of notes. This

simulates the way old analog synthesizers go out of

tune after warm up.

Activate highpass filter

The highpass filter is fixed to cut bass frequencies.

This is useful in situations where ABL is competing for

bass frequency room with other bass lines.

Configuration

Load MidiCC map Loads the Midi controller map from MidiCC.ini.

Save MidiCC map Saves the Midi controller map to MidiCC.ini.

Reload Configuration Reloads Config.ini and activates the settings.

Registration/Info

About Bass Line Presents registration and information about the plug-in.

Pattern

The pattern menu is used to alter the current pattern using following functions:

Copy/Paste

Copy Copies the pattern to the copy buffer.

Paste Pastes the copy buffer over the current pattern.

Transpose

Transpose +12 Transposes the pattern up 12 semitones (one octave).

Transpose -12 Transposes the pattern down 12 semitones (one octave).

Transpose +1 Transposes the pattern up 1 semitone.

Transpose -1 Transposes the pattern down 1 semitone.

Note: An attempt to transpose out of range will set the notes to the highest/lowest pitch

that is possible.

Shift functions

Shift Left Shifts pattern one step to the left.

Shift Right Shifts pattern one step to the right.

The shift functions only affect the steps within the pattern length and work circularly.

Transform

All notes off Sets all notes to rests.

All accents off Turns off all accents.

All slides off Turns off all slides.

Randomize Randomizes everything (pitch, transpose, accent, slide and time

mode).

Import/Export

Import pattern Import (Freebee) pattern from text format.

Bass Line – User’s Manual 8

Export pattern Export pattern to text format.

Import Rebirth 338 patterns Imports Rebirth patterns into ABL patterns 0-63

Pattern selector

Click the arrows to change the pattern in increments, or click on the digits and drag the

mouse up or down to scroll patterns.

Tempo

Click the arrows to change the tempo in increments, or click on the digits and drag mouse

the up or down to scroll. Note: Tempo can only be changed in Internal sync mode (see

Sync).

Bass Line – User’s Manual 9

Synthesizer Section

Synthesizer settings are modified by clicking on the switch(es) or knobs and dragging the

mouse. The controls from left to right are:

Waveform - Click the waveform control to toggle between sawtooth and

squarewave. ABL’s waveforms are modeled from analog synthesizers and have a

liquid quality to them.

Tuning - The tuning control has a two octave range. To make fine tuning

adjustments, hold down the <Shift> key while adjusting the tuning knob. ABL’s

default tuning is set to A-220Hz.

Cutoff - The cutoff control sets the basic cutoff frequency of the VCF. Since the

ABL filter is a low pass filter, all frequencies above the cutoff frequency will be

attenuated. Attenuation can be 18dB/octave or 24dB/octave.

Resonance - Resonance emphasizes certain frequencies around the cutoff point.

This makes the sound brighter and also affects the envelope of the accent.

Envmod - Envelope modulation determines how much movement there should be

in the cutoff frequency. Envelope modulation is bipolar in ABL, thus it modulates

the cutoff positively and negatively with the basic cutoff as center point.

Decay - Decay control sets the speed of the envelope. Turning the knob clockwise

will increase decay time, while turning counterclockwise will shorten the decay

time

Accent - The accent control sets the amount of accent for those steps which have

accent programmed on them. Turning the knob clockwise increases the effect of

accents.

Drive - The knob controls the drive of the signal being fed into the distortion

circuit. This only has any effect if the distortion knob is not fully counter

clockwise.

Distortion - The distortion circuit is activated when the knob is not positioned

fully counterclockwise (in its minimum position). Increasing the distortion will

make the sound harsher. The most 303 like setting is approximately 20%

distortion.

Volume - The volume control simply affects volume. When the volume is set to

75% or more the sound will begin to clip. This is also the nature of the original

Bass Line.

Bass Line – User’s Manual 10

Pattern programming Section

The Pattern programming section consists of a number of buttons. Some of the buttons

have diodes linked to them. The diodes show the current state for the step.

Pattern Clear Clears the pattern. All pitches are set to middle C and the

notes are either set to on (default) or off (see section

Configuration settings).

Run/Stop

The Run/Stop starts and stops the internal sequencer. This

can be used to audition the current pattern. When the

sequencer is running the diode will blink.

Steps This control is used to set the number of steps in the

pattern. Click the arrows to increment or decrement the

number of steps, or click on the digits and drag the mouse

up or down to scroll.

Auto Advance

Click to toggle between auto advance on or off. The diode

will present the current mode. When auto advance is on,

entering a pitch from the pitch keyboard will

automatically advance to the next step. Turning off the

auto advance will return step indicator to the first step.

Time Mode

When the diode is lit the note is on, else the note is a rest.

Clicking the button will toggle the time mode.

Next / Step

indicator

The digits indicate which step being edited. Clicking the

Next button advances to the next step. If the position is

already on or beyond the last step the indicator will return

to the first step.

Back The back button makes the step indicator go to the

preceding step. If the position is on first step the indicator

will return to the last step in the pattern.

Pitch

Keyboard

The pitch keyboard is used to enter

pitches into the pattern. The diode

which is lit represents the pitch on

the current step.

Effect Buttons

The Up/Down buttons transpose the

pitch in the respective direction.

Accent activates an accent on the

current step. Slide activates a slide

on the step.

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