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RELEASE NOTES

JOSUN SERIES
Platinum Bundle

Improvements, new instruments and fixes. Every release, in one place.

How to update →
Josun Series Platinum Bundle
Latest release
1.14.0
Released
Minimum player
Decent Sampler 1.19.0

Latest release

Version 1.14.0

Stable release

CC1 Dynamics & Offline Rendering Reliability Update

Improved CC1 Dynamics and Offline Rendering Reliability

  • Improved Mod Wheel (CC#1) dynamics behavior across the Josun Series.
  • Improved the reliability of CC#1 automation during Cubase Offline Export and Render in Place.
  • Presets now retain the same full output level as previous versions after loading, until the first CC#1 event is received.
  • Improved dynamics consistency across legato and multi-group instruments while preserving existing articulations, relative volume balance, and mixer behavior.
  • Refined the CC#1 dynamics range for smoother and more practical expressive control.

MIDI Channel & System Requirements

  • CC#1 Dynamics uses MIDI Channel 1.
  • Minimum required Decent Sampler version: 1.19.0.

Previous releases

53 updates
20265 updates
1.13.2Haegeum MIDI CC Control Separation Patch

Fixed Haegeum Vibrato / Expression MIDI Control Behavior

  • Fixed an issue in the Haegeum library where vibrato and expression control could feel linked or behave contrary to common MIDI controller expectations.
  • CC#1 now controls expression/volume through the gain stage.
  • CC#11 now controls the Vibrato UI control, which updates only the vibrato LFO depth (MOD_AMOUNT).
  • Adjusted the default vibrato LFO amount to prevent vibrato from being active by default when the instrument is loaded.

Applied Libraries

  • Haegeum (Mono)
  • Haegeum (Poly)
1.13.1Notation Software (Dorico, etc.) Playback Stability Patch & Keyswitch Structure Revamp

Maximized Playback Stability in Notation Software

  • Completely redesigned the keyswitch routing structure to ensure 100% stable articulation transitions during playback in notation software like Dorico and Sibelius, even in environments with fast and complex MIDI data input.

Optimized Articulation Control Structure for All Strings & Woodwinds (30 Libraries)

  • Updated from the previous indirect structure (where the sound changed via the UI menu display) to a direct control structure. Now, upon keyswitch input, the actual sound group changes instantly while simultaneously syncing the UI display.
  • This supports flawless articulation transitions without delays or errors, even during fast passages or when stopping and restarting playback.
  • Applied to: All 30 files across the Strings and Woodwinds libraries.
1.13.0Latest Decent Sampler Engine Compatibility Patch & Modulation Optimization

Full Compatibility & Optimization for the Latest Decent Sampler Engine

  • Fully optimized the internal XML structure to align with the recently updated Decent Sampler engine. Applied compatibility patches to ensure the audio engine runs more stably and smoothly in the new player environment.

Vibrato Modulation Structure Enhancement

  • Precisely redesigned the LFO modulation used for vibrato (Nonghyeon) at the instrument sound group level (GROUP_TUNING) to meet the latest engine's recommended specifications.
  • This allows for smoother and more natural vibrato textures during polyphonic playing and articulation transitions.

Loop Point & Crossfade Precision Calibration

  • Finely calibrated the sample Loop Points and Crossfade sections at the frame level for the Haegeum, Daegeum (Sanjo), and Jeog libraries.
  • The sustain and resonance of long notes are now much more seamless and natural.

Improved Percussion CC Control & Keyswitch Responsiveness

  • Intuitively and efficiently optimized the CC#1 control mapping for percussion libraries (such as Cinematic and Samulnori) and the Keyswitch On/Off routing structure for woodwinds (Saenghwang, Taepyeongso).
  • Significantly improved the overall operational responsiveness of the UI controls.
1.12.2Convolution Reverb Equalization & Audio Capacity Optimization
  • Convolution Reverb Equalization via Impulse Response Data Enhancement: Remixed the IR (Impulse Response) audio files based on loudness. This ensures a much more uniform and balanced sound when switching between different reverb types.
  • Audio Capacity Optimization: Drastically reduced the file size of the instruments through a lossless audio optimization method. You can now enjoy the exact same high-quality sound with a significantly smaller storage footprint.
1.12.1Nabal & Nagak: Velocity Layers Added & Sound Expanded
  • Nabal & Nagak Library Update: Added new audio samples to the Nabal and Nagak libraries.
  • Velocity Layers Applied: Implemented velocity layers to allow sound character to change based on playing strength, resulting in a much richer and more realistic sound.
202515 updates
1.12.0Library Integration, Instrument-Group Guides Added, Manual Updated

RoundRobin & NoRoundRobin Library Integration

  • The previously separated RoundRobin (Default) library and NoRoundRobin library have been merged into a single library.
  • After entering an instrument, you can choose:
    • RoundRobin (Default): natural variation per hit/note
    • NoRoundRobin: fixed samples
  • Applied libraries: Jangdan, Samulnori (Heritage), Samulnori (Modern)

Mono & Poly Library Integration

  • The previously separated Mono (monophonic) and Poly (polyphonic) libraries have been merged into a single library.
  • After loading an instrument, you can select Mono/Poly directly within the interface.
  • Applied libraries: Ajaeng (Jungak), Ajaeng (Sanjo), Haegeum, Danso, Daegeum (Jungak), Daegeum (Sanjo),
    Daepiri, Hoon, Jeog, Ji, Nabal, Nagak, Piri (Dang), Piri (Hyang), Piri (Se),
    So, Sogeum, Taepyeongso, Tungso, Yak

Added Instrument-Group Detailed Guides (README.html)

  • Added README.html files in each folder:
    • Woodwinds
    • Strings
    • Percussion
  • Running the file provides detailed information such as:
    • Playing methods (Key Switches)
    • Key Mappings
    • CC controller functions
  • Default language is English; you can switch to Korean using the top button.

Manual & EULA Update

  • Updated documents for clearer feature descriptions and explicit license terms (EULA).
  • Supports Korean / English.
1.11.5Size Optimization for Strings & Woodwinds
  • Optimized sample data to reduce library size without quality loss.

Size reduction

  • Strings series: ~ 120 MB
  • Woodwinds series: ~ 740 MB

Note: This update only optimizes file size and does not change functionality or sound.
If your current version works fine, updating is optional. Update only if you need to free up storage.

1.11.4Percussion Manual Update & Cinematic Note Fixes

Percussion Manual (All) Review & Revisions

  • Fixed octave notation error: A mix-up between Concert Pitch (C1=24) and Computer programming standard (C2=36) caused the percussion manuals (including Cinematic) to be written one octave higher than actual. This has been corrected.\
    • Example: Chuk D7 -> D6
  • Added missing information: Added missing instrument placement info for the Temple & Ritual library.

Cinematic Library: Partial Note Mapping Changes

  • Updated some notes for more natural performance:

  • A#4 (70) ~ D5 (74) : Yeonggo
    → A#4 (70) ~ D#5 (75) : Yeonggo

  • D#5 (75) ~ F#5 (78) : Bak
    → E5 (76) ~ F#5 (78) : Bak

  • A6 (93) : Nodo
    → A6 (93) ~ A#6 (94) : Nodo

1.11.3Added “Temple & Ritual” Library (Percussion)
  • Added Temple & Ritual library to the Percussion series and Platinum Bundle.
    This library includes spiritual and ritual percussion sounds used in Buddhist ceremonies and shamanistic rituals (gut).

Main included instruments

  • Buddhist bell / temple bell: from small ritual bells to large temple bells with deep resonance
  • Drum: powerful heartbeat-like drum sounds central to rituals
  • Jing (large gong): deep, wide resonance often signaling the start of jangdan
  • Moktak (wooden fish): clear sound used to keep rhythm during chanting
  • Hand bells, Jeongju, Yoryeong, etc.: bright, spiritual metal percussion instruments
1.11.2Fixed Percussion NoRoundRobin Bug
  • Fixed a bug where samples could play duplicated in some situations in certain NoRoundRobin percussion libraries.

Patched libraries

  • Jangdan (NoRoundRobins)
  • Samulnori (Heritage) (NoRoundRobins)
  • Samulnori (Modern) (NoRoundRobins)
1.11.1Added Nabal & Nagak (Woodwinds / Platinum Bundle)
  • Added Nabal and Nagak libraries to the Woodwinds series.
  • Although both instruments produce only a single pitch in reality, for usability they were implemented to play all notes within one octave.

Nabal

  • Brass instrument made from long metal, producing a deep, resonant single tone (similar to a trombone).
  • No finger holes; used in daechwita (military ceremonial music) to create a solemn atmosphere or send signals.

Nagak

  • Natural instrument made from a large conch shell.
  • Deep, majestic foghorn-like sound; produces a single sustained tone and adds a mysterious, solemn atmosphere in daechwita and similar contexts.
1.11.0Added Keyswitch On/Off (All Woodwinds & Strings)
  • Added a new “Keyswitch” button in the UI.
  • You can toggle keyboard-based articulation switching (Keyswitch) on/off in real time.

Behavior

  • Keyswitch ON (Default):
    • Works as before; press specific keys to switch articulations.
    • Keyswitch keys are visually indicated on the UI keyboard.
  • Keyswitch OFF:
    • Keyswitch-designated keys behave like normal playable keys (if samples are mapped) or do nothing.
    • Articulations can be changed only via the UI dropdown.
    • Keyswitch color indicators disappear.

Applied libraries

  • Strings: Gayageum (Jungak, Sanjo, 25-string), Geomungo (Jungak, Sanjo), Ajaeng (Jungak, Sanjo), Haegeum\
  • Woodwinds: Daegeum (Jungak, Sanjo), Sogeum, Junggeum, Danso, Tungso, Saenghwang, Taepyeongso,
    Hyangpiri, Sepiri, Dangpiri, Daepiri, Ji, Yak, Jeog, Hoon, etc. (all woodwinds with existing keyswitch support)

Benefit

  • Prevents unintended keyswitch inputs during complex sequencing, or lets you use the keyswitch range as playable keys in certain contexts.

UI / Stability

  • Minor layout/readability improvements (where applicable).
  • Improved stability/responsiveness of keyswitch via internal script optimization.
1.10.0Convolution Reverb Type Selection + Manual Update

Added IR Type Selection (Dropdown)

  • Options:
    cathedral.wav / chamber.wav / dream.wav / hall.wav / large_hall.wav / outdoor.wav / plate.wav / room.wav / studio.wav
  • Default: hall.wav

Reverb Type Descriptions

  • Cathedral: vast space, rich lows, grand/mysterious
  • Chamber: soft, warm, intimate indoor feel
  • Dream: subtle, translucent tail; dreamy/ethereal
  • Hall: balanced reflections; natural spaciousness
  • Large Hall: wide, lush stage-like reflections
  • Outdoor: open-air diffusion; fresh, open feel
  • Plate: bright, shimmering reflections; crisp resonance
  • Room: cozy, realistic early reflections; intimate
  • Studio: subtle reflections only; clean depth

Manual Update

  • Added documentation for IR type selection.
  • Expanded explanation of Percussion RoundRobin / NoRoundRobin.
  • Misc. typo and wording improvements.
1.9.9Added Percussion NoRoundRobin Libraries
  • Added NoRoundRobin libraries for:
    • Jangdan
    • Samulnori (Heritage)
    • Samulnori (Modern)

Round Robin

  • A feature that plays different sample variations each hit to increase realism.

Pros

  • Reduces artificial repetition by triggering different samples for the same note.

Cons

  • If you need the exact same sample each time, it can be unnecessary.

  • Added NoRoundRobin libraries to provide broader user choice.

1.9.8Fixed Jangdan “Byeonjuk Triplet” Sample Resource
  • Fixed an issue where silence at the start of the byeonjuk triplet sample caused delayed playback.
1.9.7Optimized Convolution Reverb Default Mix (All Libraries)
  • Updated Convolution Reverb mix default:
    • 0.30 (30%) → 0.15 (15%)
  • Based on feedback that the previous default was too strong; changed after testing.
1.9.6Added Per-Instrument Volume & Panning Knobs (Samulnori)
  • Updated Samulnori (Modern) and Samulnori (Heritage)
  • Added per-instrument Volume and Panning knobs
    (e.g., Janggu, Kkwaenggwari), enabling more precise mixing and sound design.
1.9.5Added Delay Time Knob + Fixed Geomungo Sanjo (Poly) Voice Error

Added Delay Time Control Knob

  • Added a knob to directly control delay time.
  • Time Sync: follows DAW BPM automatically
  • Musical values: selectable in musical time units (e.g., 1/16, 1/4 notes)
  • Real-time response: immediate reflection for intuitive sound design

Fixed Geomungo Sanjo (Poly) Voice Error

  • Fixed an issue where vibrato notes would sound simultaneously in the Basic playing method.
1.9.4Portamento Glide Time Revision
  • Improved Portamento behavior:
    • More natural glide-time control
    • More delicate mid-range control, larger changes in later range
    • Optimized response curve
    • Fixed abrupt/unexpected behavior from previous versions
1.9.3Added Jangdan & Samulnori (Heritage); Renamed Samulnori
  • Added 2 libraries to Percussion Series and Platinum Bundle:
    • Jangdan: focused on traditional jangdan for folk songs, rituals, pungmul
    • Samulnori (Heritage): more traditional setup and deeper sound than existing library
  • Renamed existing Samulnori library to Samulnori (Modern)
202433 updates
1.9.1Added Woodwinds Polyphonic Versions + Vibrato Updates
  • Added Woodwinds Polyphonic libraries (except Saenghwang).
    • Legato is excluded in Poly versions due to polyphonic characteristics.
  • Added new controls to Ajaeng (Jungak):
    • Vibrato / Portamento / Attack Time
  • Improved vibrato algorithm:
    • Added Rate control for more realistic vibrato.
1.9.0LFO-Based Vibrato Update (Woodwinds + Some Strings)
  • Switched vibrato from Blend to LFO-based control.
  • Modulates Pitch + Amplitude for realism.
  • Revised Daepiri keyswitch system:
    • Removed mixed Legato/Vibrato method
    • Made articulation switching more intuitive via Key Switch.
  • Added LFO vibrato to woodwinds such as Hoon, Jeog, Ji, etc.
1.8.2Added Strings Polyphonic Libraries
  • Added Polyphonic versions for:
    • Ajaeng (Sanjo)
    • Ajaeng (Jungak)
    • Haegeum
  • Similar Polyphonic update planned for woodwinds.
1.8.1Manual & EULA Update
  • Updated the manual and EULA to reflect new articulations, feature changes, and algorithm changes.
1.8.0Haegeum Library Update

  1. Added new articulations:

    • Bendup / Bending / Tremolo\
    • Key Switch range moved one octave lower (from C1~) due to articulation additions.

  2. Updated samples:

    • Reinforced samples from lowest range F2 to highest range E5 for more natural performance across a wider range.
1.7.1Keyswitch ↔ Articulation Dropdown Sync
  • Articulation display in the top-center UI now automatically syncs when you change articulations via keyswitch.
1.7.0Added Legato to Monophonic Instruments
  • Added Legato to monophonic woodwinds/strings (except Saenghwang) such as Daegeum, Piri family, Haegeum, Ajaeng (Jungak/Sanjo).
  • Minor Taepyeongso library improvements (sound quality + bug fixes).
1.6.7Removed Reverb Link on CC#1 Volume + Added Saenghwang Vibrato
  • Fixed an issue where reducing volume via MIDI CC#1 also reduced/removed reverb.
    (Volume range reset to 0 dB ~ -20 dB)
  • Added Saenghwang vibrato (nong-eum) with Depth and Rate control.
1.6.6Added Vibrato/Glide/Attack to Taepyeongso & Tungso + Articulation Revision
  • Added real-time vibrato (CC#11), Glide Time, Attack Time.
  • Revised Taepyeongso articulations and removed unnecessary ones.
    • New: Sustain (C2), Vibrato (D2), Staccato (E2), Deureum (F2), Toeseong (G2), Chuseong (A2)
1.6.5Added Vibrato/Glide/Attack to Sepiri & Sogeum
  • Added real-time vibrato (CC#11), Glide Time, Attack Time.
  • Planned rollout to other woodwinds.
1.6.4Range Improvements (Haegeum, Sanjo/Jungak Daegeum)
  • Haegeum highest note: C5 → Eb5
  • Daegeum (Sanjo/Jungak) highest note: E5 → G5
1.6.3Reverb Algorithm Improvement (All Libraries)
  • Improved reverb tail resolution and frequency response for more natural ambience across all instruments.
1.6.2Added Vibrato/Glide/Attack to Piri Family + Patch Updates
  • Added Glide Time and Attack Time to:
    • Daepiri, Dangpiri, Hyangpiri
  • Daepiri:
    • Unified to Sustain; vibrato controlled via knob; intensity varies with playing strength.
  • Dangpiri:
    • Added sustain behavior to all articulations except staccato.
  • Hyangpiri:
    • Removed Soft Vibrato; added sustain to all articulations except staccato/chuseong/toeseong.
  • Updated vibrato on other instruments (Haegeum, Sanjo Ajaeng, etc.) to be more natural.
1.6.1Added Vibrato/Glide/Attack to Daegeum (Sanjo/Jungak) & Danso
  • Added real-time vibrato (CC#11), Glide Time, Attack Time.
  • Removed Nina articulation due to low usage.
  • Added Sustain articulation: notes sustain while holding key/pedal.
1.6.0Added Vibrato/Glide/Attack to Select Strings
  • Updated Haegeum and Ajaeng (Sanjo):
    • Real-time vibrato via CC#11 (Expression)
    • Glide Time (Portamento)
    • Attack Time (gradual build; default 0)
  • Added MIDI note labels for articulations (Key Switch notes shown in UI).
1.5.1Sustain Added, GUI Update, Sample Update
  • Added Sustain to all woodwinds + select strings (Sanjo Ajaeng, Jungak Ajaeng, Haegeum, etc.).
  • UI now displays current articulation at the top.
  • Removed unnecessary silence from fast Taepyeongso vibrato samples to improve responsiveness.
  • Applied Round Robin to Samulnori janggu/kkwaenggwari for more natural repetition.
1.4.7Fixed Saenghwang Pitch Error + Samulnori FX Bug
  • Fixed inaccurate Saenghwang pitch in certain ranges.
  • Fixed an issue where FX parameters were not applied in Samulnori.
1.4.6Added Manual & EULA Files
  • Packaged the manual and EULA in the library folder to reflect new features and license terms.
1.4.5Fixed Samulnori Expression Bug
  • Fixed an issue where Expression did not apply correctly in some situations.
1.4.4Added Geomungo Articulations
  • Added new Geomungo articulations such as Ssaraeng, Jachul, Chuseong, etc.
1.4.3Minor Bug Fix
  • Fixed internal exceptions related to “Maibeo (Myber)” during parameter processing.
1.4.2Added Sanjo Gayageum Articulations
  • Added articulations such as Chuseong, Kkeokgi + Nonghyeon, Yeonnonghyeon, Yeontwigim, Gullym, etc.
1.4.1Added Jungak Gayageum Articulations + 25-String Tremolo Update
  • Added Jungak Gayageum “2x repeated pluck” articulation.
  • Improved 25-string Gayageum tremolo sampling and expression.
1.4.0Added 25-String Gayageum Articulations
  • Expanded articulations: 2x repeated pluck, 3x repeated pluck, Kkeokgi + Nonghyeon, Nonghyeon, Chuseong, etc.
1.3.1Minor Bug Fixes
  • Fixed some UI display issues and setting reset problems.
1.3.0Major Woodwind Articulation Expansion + Daepiri Library Added

Woodwind articulation expansion

  • Sanjo Daegeum: Nira, Noniro, Crescendo, Daruchigi
  • Jungak Daegeum: Noniro, Crescendo
  • Dangpiri: Nira, Nire, Noniro, Nanireu
  • Sepiri: Nanireu, Nira, Nire, Nonireu
  • Hyangpiri: Nanireu, Nira, Nonireu, Toeseong, Chuseong, Deep Yoseong
  • Taepyeongso: fast vibrato, chuseong, toeseong, velocity layer

Daepiri library

  • Newly added dedicated Daepiri library.
1.2.1Minor Bug Fixes
  • Fixed issues occurring in some user environments during network updates.
1.2.0Minor Sample Updates + Library Additions
  • Adjusted Hyangpiri and Haegeum samples to improve noise/balance issues in specific ranges.
  • Added woodwind libraries: Yak, Jeog.
  • Experimentally tested server-based update file delivery.
1.1.2Bug Fixes (Windows / iOS Partial Instrument Support)
  • Improved iOS compatibility: fixed unsupported instruments in iOS environments.
  • Patched Windows DS app compatibility so instruments load correctly (woodwinds, samulnori, etc.).
1.1.1Minor Bug Fixes
  • Minor stabilization: fixed small compatibility issues and some UI display errors.
1.1.0Added “Ji” Library + Platinum Bundle Update
  • Added standalone Ji library (woodwind).
1.0.1Minor Bug Fixes + Fixed Windows Reverb Load Error
  • Fixed reverb not loading in Windows environments.
  • Fixed other minor issues in some user environments.
1.0.0Initial Release
  • Initial release of the traditional Korean instrument libraries.

DOWNLOAD & SUPPORT

How to update

Re-download the library using the link in your original purchase email. If you need help accessing it, contact QLAUDIO support.

Since v1.5.1, checkVersion.html is included in the library folder. Download it together with the updated library; use the original purchase email link if the file is missing.

Need a hand?

If your download link does not reflect the latest version, contact us. contact@qlaudio.com