Synchron Solo Strings

Introduction

Welcome to the Vienna Symphonic Library’s series of Synchron Instruments! The instruments were recorded at Stage A, the main hall of Vienna’s revitalized Vienna Synchron Stage. The recordings were executed using an expansive, phase-controlled multi-microphone set-up, capturing string effects played in a scoring stage with exceptional acoustics, now ready to be used in your studio. This document will provide you with the information you need to use the Library with our Vienna Synchron Player.

Standard and Extended Library

All the instruments were recorded using 20 microphones, subdivided into 11 sections. The Standard Library includes 4 of these sections (as well as a RAM-friendly Room Mix section composed of merged samples from the individual positions), allowing you to integrate instruments recorded with a stereo Decca tree into your projects using the Vienna Synchron player or our mixing hosts Vienna Ensemble and Vienna Ensemble Pro. Adding the Extended Library and thus getting the Full Library expands your possibilities to 5.1 surround and Auro 3D 9.1, with the additional option of High Stereo and Surround microphones to expand your sound possibilities even further.

  • Microphone positions
    • Standard Library 00. Room Mix – Stereo
        1. Close Mic 1 (Tube) – Mono
      1. Mid Layer Mic 1 – Stereo (L/R)
      1. Main/Room Mic – Decca Tree Stereo (L/R)
      1. Main/Room Mic – Decca Tree Mono (Center)
  • Extended Library 02. Close Mic 2 (Ribbon) – Mono
      1. Close Mic 3 (Condenser) – Stereo (L/R)
      1. Mid Layer Mic 2 – Stereo (L/R)
      1. Mid Layer Mic 3 (Ribbon) – Stereo (L/R)
      1. Main Surround – Stereo (L/R)
      1. High Stereo (3D) – Stereo (L/R)
      1. High Surround (3D) – Stereo (L/R)

Mixer Presets

For each ensemble, there are a number of Mixer Presets that depict different recording situations. The basic Mixer Presets in this Collection are Close Solo/Center/First Chair, Classic Solo/Center/First Chair, Wide, Distant, Ambience, Lush, and Lush Long. These are available in stereo versions for Room-Mix, Standard and Full, as well as in Decca Tree Multi Mic and Surround Presets. Moreover, there is a Special category for the Full Library.

By default the classic room mixes are loaded which include the Standard Library microphone positions “Room Mix”, “Tube” and “Mid”. These are balanced in the stereo field to represent the respective instrument’s position in the Synchron Stage set-up.

Patches

Patches can be used to build your own custom Presets and adapt the Synchron Libraries to your specific requirements. For further information on constructing Presets, please see the Synchron Player manual.

Immersive Sound and Auro 3D

Auro 3D is an immersive audio technology that allows for three-dimensional sound perception. The Belgian company Auro Technologies developed this technology based on a special speaker configuration, adding four additional speakers to a 5.1 surround configuration. These speakers (so-called “Heights”) are situated above the front and surround speakers and generate acoustic reflections that are perceived naturally due to the fact that sounds originate from around as well as from above the listener. Thanks to the comprehensive selection of discrete audio channels with the Full Library, you may mix your instruments in Auro 3D as well as in Dolby Atmos.

Articulation categories

The Presets of each instrument group are subdivided into 9 (violin) resp. 10 (cello) different Articulation categories:

  • Short notes
  • Long notes
  • Performance legato
  • Dynamics
  • Tremolo
  • Trills
  • Pizzicato
  • Harmonics
  • Effects (cello only)
  • Sequences

The new category “Sequences” presents a feature allowing you to play a pre-defined sequence of Articulations. The Articulation categories are further subdivided into Types such as spiccato or staccato, and additional options are available for most Articulations, e.g., attack or release variants.

Preset types

Synchron libraries generally offer different Presets according to how velocity is handled, arranged in separate folders.

“VelXF sus - MOD”: velocity crossfading is only activated for long notes, while the dynamics of short notes are controlled by keystroke velocity, thus facilitating phrasing. “VelXF - MOD”: all articulations have velocity crossfading activated so that you can control dynamics with MIDI controller CC1, the modwheel. “VelXF + Velocity control”: these Presets also use the modwheel, but in addition keystroke velocity is used to determine the attack behaviour of long notes, legato, etc. Moreover, there are special patch combinations, e.g., where velocity triggers spiccato or staccato samples. “Velocity”: note volume is controlled by keystroke velocity just like a piano.

Velocity crossfading can always be enabled or disabled by clicking its on/off symbol in the Synchron Player's Perform tab.

The Presets of each instrument group are subdivided into different articulation categories, including one named “Custom” and ready for your own creations. Within these articulation categories, you can select a type, e.g., staccato, and for some of the types there are additional options available, such as “bold” and “agile” for the Introduction / Pitch staccatos. Depending on articulation, there also may be things like release and crossfading options. If you happen to be short of RAM, you can leave the entire dimension tree disabled and only enable the slots you need for your arrangement.

Switching between an instrument’s playing styles and articulations is generally done via dedicated keys on the keyboard and aptly called “keyswitches”. By default the keyswitches for Articulations are mapped depending on an instrument’s range – starting from C1 (for Middle C = C4). The violin’s Type keyswitches start from C2, and those of the cello from C6.

Dimension Controllers offer additional options within some Articulations or Types, most notably that of crossfading between different Patches. The controller function is indicated by the group’s respective caption, as of course it may take on different tasks as needed.

Synchron Solo Strings – Presets

The Presets of the Collection comprise all the instruments’ recorded Patches in Articulation groups, which again contain Types of the respective Articulation, with further options if available. If you happen to be short of RAM, you can leave the entire dimension tree disabled and only enable the slots you need for your arrangement.

The violin’s Articulation keyswitches are mapped from C1 to A1 (for Middle C = C4), those of the cello from C1 to A#1. The Type keyswitches start from C2/F2 (depending on articulation) for the violin, and from C6/F6 for the cello. The keyswitches for further options such as release and attack variants are mapped to the keyboard’s 7th octave.

Dimension Controllers offer additional options within some Articulations or Types, most notably that of crossfading between different attack and release variations. The controller function is indicated by the respective caption, as of course it may take on different tasks as needed.

  • Articulations: violin C1–A1; cello C1–A#1.
  • Type: violin from C2/F2; cello from C6/F6.
  • Attack, release, other variants: starting at C7.
  • XF control: MIDI continuous controllers (CC).

Short notes

Spiccato, staccato, détaché short/normal/soft/without vibrato,ll with "bold" and "agile" attack variants; performance spiccato with normal and fast attack; détaché slides up and down; ricochet a1–a4; saltando; saltando glissando, up and down.

  • Type: C2–A#2 (violin, viola), C6–A#6 (cello, bass).
  • Bold / Agile, Up/Down: A7 / A#7.

Spiccato, staccato, détaché, saltando

Spiccato; staccato; détaché short, regular, soft, and without vibrato; saltando. All except saltando with bold and agile attack.

Screenshot of the Synchron Solo Strings virtual instrument interface showing articulation, type, and attack menus with options like short notes, spiccato, and bold selected.

Performance spiccato

Performance spiccato with normal and fast attack, with an auto-speed option. Auto-speed uses Dim.Ctrl/B (playing speed) to determine attack behavior.

  • Attack: A7/B7/C8.
Vienna Symphonic Library (VSL) Synchron Solo Strings instrument interface showing Articulation, Type, Attack, and Auto-speed controls for detailed sound customization.

In VelXF+Velocity control Presets, the change between normal and fast attack is controlled by keystroke velocity by default, so that no auto-speed cell is necessary.

Détaché slide, saltando glissando

Détaché slides, up, down, and fall; and glissando saltando, up and down.

  • Up/Down: détaché A/–B7, glissando A7 / A#7.
Vienna Symphonic Library Synchron Solo Strings interface showing articulation, type, and direction settings for musical performance.

In VelXF+Velocity control Presets, the direction is controlled by keystroke velocity.

Ricochet

  • Repetitions: F7–G#7.
Screenshot of the Synchron Solo Strings user interface displaying selectable articulation, type, and repetitions parameters, including options like Short notes, Ricochet, and Staccato.

VelXF + Velocity control – spiccato, staccato

In the VelXF + Velocity Presets, the short notes have an additional Type named “Vel. control” with three sub Types that employ velocity control to switch between articulations: spiccato/staccato velocity control, détaché velocity control, and ricochet. Keystroke velocity is employed to trigger different patches.

  • Type 2: F7–G7.
Spiccato/staccato, détaché

Use keystroke velocity to switch between spiccato/staccato resp. soft/normal/marcato détache.

  • Articulation: Dim.Ctrl/C (keystroke velocity).
  • Attack: A7/A#7.
Synchron Solo Strings interface showing velocity control and articulation options like spiccato, staccato, bold, and agile.
Ricochet

Keystroke velocity triggers ricochet a1–a3, and saltando.

  • Repetitions: Dim.Ctrl/C (keystroke velocity).
Screenshot of Vienna Symphonic Library Synchron Solo Strings interface showing instrument articulations like Spiccato, Staccato, Detache, Ricochet, and Saltando, with velocity control settings.

Long notes

Sustained notes, regular with light, strong, and without vibrato, with attack and release variants; and slides, up and down, with release variants.

  • Regular/Slides: C2–C#2 (violin), C6–C#6 (cello).

Regular – senza, poco, molto vibrato

Long notes without, with light and strong vibrato, normal/soft/fast attack; with normal, fall, and octave up and down release.

  • Expression: G2–B2 (violin), G6–B6 (cello).
  • Release: F7–G#7.
  • Attack: A7–C8.

In VelXF + Velocity control Presets, attack is controlled by keystroke velocity instead of keyswitches.

Vienna Symphonic Library Synchron Solo Strings articulation, type, expression, release, and attack parameter settings for music production software.
Vibrato XF poco/molto vibrato, all vibratos

Crossfading combination between poco and molto vibrato resp. all vibrato patches. Use Dim.Ctrl/A (CC20) for crossfading.

  • Vibrato XFade: Dim.Ctrl/A (CC20).
Screenshot of the Synchron Solo Strings virtual instrument interface showing Type, Expression, Vibrato XF, Release, and Attack parameters with selectable musical articulations for detailed sound control.

Regular – VelXF + Velocity control

  • Attack: Dim.Ctrl/C (keystroke velocity).

![](../../images/sy_solostrings/SySoStr_02_long_01_regular_03_velctrl.jpg

Slides

Slides, up and down, with normal, fall, and octave up and down release.

  • Release: F7–G7.
Vienna Symphonic Library Synchron Solo Strings interface showing Articulation, Type, Direction, and Release options for virtual instrument parameters.

Slides – VelXF + Velocity control

  • Up/Down: Dim.Ctrl/C (keystroke velocity).
A screenshot of the Synchron Solo Strings instrument interface, displaying Type, Direction, and Release settings. The Type section shows Regular and Slides options, Direction has Up and Down, and Release includes Normal rel., Fall, Octave up, and Octave do. selections.

Performance Legato

Legato normal and agile, slurred legato, and portamento, normal/soft/fast attack; lyrical legato, and zigane. All with normal, fall, and octave up and down release. Including an auto-speed option between normal and agile legato.

  • Type: C2–F#2 (violin), C6–F#6 (cello).

Normal, agile, slurred, portamento

  • Expression: G2–B2 (violin), G6–B6 (cello).
  • Release: F7–G#7.
  • Attack: A7–B7.
Vienna Symphonic Library Synchron Solo Strings articulation, type, expression, release, and attack parameter controls, showing options like Perf. legato, Normal, Senza vib., Normal rel., and Normal att.

In VelXF + Velocity control Presets, attack is controlled by keystroke velocity instead of keyswitches.

Vibrato XF poco/molto vibrato, all vibratos

Crossfading combination between poco and molto vibrato resp. all vibrato patches. Use Dim.Ctrl/A (CC20) for crossfading.

  • Vibrato XFade: Dim.Ctrl/A (CC20).

![](../../images/sy_solostrings/SySoStr_03_perfleg_02_vibxf.jpg

Auto-speed

This option implements a controller on Dim.Ctrl/B to switch automatically between normal and agile legato according to playing speed.

  • Speed controller: Dim.Ctrl/B (playing speed).
Vienna Symphonic Library Synchron Player interface showing parameters for Type, Auto-speed, Expression, Vibrato XF, Release, and Attack with various control options for solo strings.

Lyrical, zigane

Lyrical legato and zigane with normal, fall, and octave up and down release.

  • Release: F7–G#7.
User interface demonstrating articulation, type, and release settings for Vienna Symphonic Library Synchron Solo Strings software, displaying options like Perfect Legato, Lyrical, and Normal Release.

VelXF + Velocity control

In these Presets, attack is controlled by keystroke velocity instead of keyswitches.

  • Attack: Dim.Ctrl/C (keystroke velocity).
Vienna Symphonic Library Synchron Instruments user interface showing Type, Expression, Release, and Attack controls with various options for musical performance parameters.

Dynamics

Sforzato, crescendo, diminuendo, piano to forte legato, and forte to piano legato.

  • Type: C2–E2 (violin), C6–E6 (cello).
  • Transition: F7–G7.
  • Attack: A7/B7/C8.

In VelXF + Velocity Presets, attack is controlled by keystroke velocity instead of keyswitches.

Sforzato, p<f legato, f<p legato

Articulations with normal, fall, octave up and octave down release. The “legato” Patches differ from crescendo and diminuendo below in that only starting notes will play crescendo or diminuendo, while subsequent connected legato notes will stay in the target dynamic.

  • Release: F7–G#7.
Synchron Solo Strings software interface showing Articulation, Type, and Release settings for musical instrument sounds.

p<f (crescendo), f<p (diminuendo)

Short, medium, and long crescendo and diminuendo without and with vibrato.

  • Expression: G2–A2 (violin), G6–A6 (cello).
  • Length: F7–G7.
Vienna Symphonic Library Synchron Instruments user interface displaying articulation, type, expression, and length options for solo strings.
Vibrato XF

Crossfading option between senza and con vibrato with the help of Dim.Ctrl/A (MIDI CC20).

  • Vibrato XFade: Dim.Ctrl/A (CC20).
Screenshot of the Synchron Solo Strings virtual instrument interface showing Type, Expression, Vibrato XF, and Length parameters with active settings for various articulations and musical dynamics for Vienna Symphonic Library.

VelXF + Velocity control – diminuendo/sforzato

This additional cell in VelXF + Velocity control Presets switches between diminuendo and sforzato according to keystroke velocity.

  • Dim./sfz: Dim.Ctrl/C (keystroke velocity).

![](../../images/sy_solostrings/SySoStr_04_dynamics_04_velctrl_dimsfz.jpg

VelXF + Velocity control – crescendo, diminuendo

In VelXF + Velocity control Presets, crescendo and diminuendo are combined and can be controlled via keystroke velocity.

  • Cres/dim: Dim.Ctrl/C (keystroke velocity).
Interface displaying Synchron Solo Strings instrument parameters: Type, Cre./dim., Expression, and Length sections with options like Cresc./dim., Con vibrato, and Short.

Tremolo

Tremolo with normal and legato transitions, and measured tremolo.

  • Type: C2–D2 (violin), C6–D6 (cello).
  • In VelXF + Velocity Presets, attack is controlled by keystroke velocity instead of keyswitches.

Regular

Tremolo with normal and legato transitions, with normal and sforzato attack.

  • Transition: F7–F#7.
  • Attack: A7/B7.
Vienna Symphonic Library Synchron Solo Strings interface showing Articulation, Type, Transition, and Attack settings with Tremolo selected.

Long X tremolo

Use Dim.Ctrl/A (CC20) to crossfade between sustained notes and tremolo.

  • Sustained/tremolo XFade: Dim.Ctrl/A (CC20).
Vienna Symphonic Library Synchron Solo Strings interface showing Articulation Type XFade and Transition settings with Tremolo selected

Measured tremolo

Tremolo at 120/130/140/160/180 bpm with normal and cut release.

  • Tempo: F2–A2 (violin), F6–A6 (cello).
  • Release: F7/F#7.
Vienna Symphonic Library Synchron Solo Strings articulation, type, tempo, and release settings interface, showing options like tremolo, measured, 120 bpm, and normal release.

Trills

Trills, minor and major 2nd, with normal, legato, and slurred transitions.

  • Interval: F2–F#2 (violin), F6–F#6 (cello).
  • Transition: F7–G7.
User interface showing articulation, interval, and transition settings for Vienna Synchron Solo Strings, including options like Trills, Half-tone, and Normal.

VelXF + Velocity control

In VelXF + Velocity control Presets, the trills are controlled by keystroke velocity rather than by keyswitches.

  • Half/whole tone: Dim.Ctrl/C (keystroke velocity).
Vienna Symphonic Library Synchron Solo Strings software interface showing Articulation, Interval, and Transition settings for musical instrument samples.

Pizzicato

Pizzicato, bold and agile; snap pizzicato; col legno, bold and agile.

  • Type: C2–D2 (violin), C6–D6 (cello).
  • Bold/agile: A7/A#7.
Screenshot of the Synchron Solo Strings user interface displaying selectable articulations, types, and attack parameters, including Pizzicato, Bold, and Agile options, for VSL virtual instruments.

VelXF + Velocity control – Regular/snap pizzicato

In this additional combination, Dim.Ctrl/C (keystroke velocity) is used to trigger regular pizzicato at lower velocities, and snap pizzicato at higher ones.

Vienna Symphonic Library Synchron Solo Strings interface showing Pizzicato articulation, Velocity ctrl Regular, and Attack Bold settings.

Harmonics

Harmonics sustained, tremolo, staccato and détaché bold and agile. With crossfading combinations of the long notes.

  • Type: C2–F#2 (violin), C6–F#6 (cello).

In VelXF + Velocity control Presets, attack is controlled by keystroke velocity instead of keyswitches.

User interface for Vienna Symphonic Library Synchron Solo Strings showing articulation and type selection menus with options like short notes, long notes, legato, tremolo, pizzicato, harmonics, and staccato.

Long XF tremolo, regular X harmonics, tremolo XF harmonics

Crossfading combinations between sustained and tremolo harmonics, normal and harmonics sustains, and regular and harmonics tremolo. Use Dim.Ctrl/A (CC20) to crossfade between articulations.

  • Articulation XFade: Dim.Ctrl/A (CC20).
Screenshot of the Vienna Symphonic Library Synchron Solo Strings software interface showing articulation, type, and XFade settings for musical instrument sounds.

Staccato, détaché

Staccato and détaché harmonics, bold and agile.

  • Bold/agile: A7/A#7.
Vienna Symphonic Library Synchron Solo Strings articulation, type, and attack controls showing musical parameter options like short notes, staccato, and bold.

Cello only: Effects

Scratches, glissando pizzicato, harmonics glissando, hammer, finger slides, and grabs.

  • Type: C6–F6.

In VelXF + Velocity control Presets, the scratches’ length and finger slides’ direction are controlled by keystroke velocity instead of keyswitches.

Scratches

Scratching strokes on the strings.

  • Staccato/détaché: C7/C#7.
Screenshot of the Vienna Symphonic Library Synchron Solo Strings interface showing Articulation, Type, and Length menus with selected options.

Glissando pizzicato

Pizzicato notes with subsequent upward glissandos.

  • Range: C2–A4.

Harmonics glissando

Harmonics glissandos on each string, slow and fast, up and down; and looped, with low and high release.

  • Mapping: up/low release: C2, G2, D3, A3; down/high release: C4, G4, D5, A5.
  • Slow/fast/loop: F7–G7.
Vienna Symphonic Library Synchron Solo Strings interface showing articulation, type, and variant selections for musical instrument sound manipulation.

Hammer

Hammering on the string with the finger to produce the tone.

  • Range: D2–D5.

Finger slide

Producing noises by sliding a finger over the strings.

  • Up/down: A7/A#7.
Vienna Symphonic Library Synchron Solo Strings articulation and sound type selection interface.

Grab

Grabbing and releasing the fingerboard with the strings in different places.

  • Mapping: grab on: C2–B2; grab off: C4–B4.

Sequences

This section is dedicated to sequences of two types of short articulations with 2 to 4 changes. The initial articulation ist followed by up to 3 repetitions of the other one.

  • Sequence type: C2–E2 (violin); C6–E6 (cello).
  • Succession: F2–A#2; F6–A#6.
  • Bold/agile: A/A#7.

Spiccato/staccato

Vienna Symphonic Library Synchron instrument interface showing articulation, type, succession, sequence, and attack options for string instruments, including spiccato and staccato.

Détaché/staccato

Vienna Symphonic Library Synchron Player interface showing Type, Succession, Sequence, and Attack parameters for solo strings, with Detache highlighted.

Détaché soft/regular

Vienna Symphonic Library Synchron Solo Strings interface showing interactive controls for Type, Succession, Sequence, and Attack parameters for musical instrument sounds.

Sforzato/détaché

User interface showing instrument articulations, including Type, Succession, Sequence, and Attack settings for Vienna Symphonic Library Synchron Solo Strings.

Pizzicato regular/snap

A screenshot of the Synchron Player user interface displaying sound articulation options for Solo Strings including Type, Succession, Sequence, and Attack parameters.

VelXF + Velocity control – Legato vel.ctrl.

These Presets feature an additional Articulation where the legato type (normal, slurred, portamento) is controlled by keystroke velocity.

  • Type: Dim.Ctrl/C (keystroke velocity).
Synchron Solo Strings graphical user interface showing Articulation, Type, Expression, and Release parameters with various selectable options like Legato, Pizzicato, Vibrato, and Velocity control.

Custom

This “articulation” does not yet contain any patches. It provides 6 slots ready for you to configure presets of your own.

Vienna Symphonic Library Synchron Solo Strings articulation and custom mapping interface, showing options like short notes, long notes, legato, dynamics, tremolo, trills, pizzicato, harmonics, and user-defined custom settings.