Device Photos
Front
Top
PSU
Basic data
Name
Korg Volca Sample mk1 (Custom FW)
Category
9) Samplers and Sample sequencers
Type
SAMPLE_SEQUENCER
Specimen
B (Custom firmware)
Inventory tag
HW-2024-SA-VOLCA-002-CUST
Condition
OK
Physical parameters
Dimensions (mm)
—
Dimensions (inch)
—
Weight
—
Format
—
Material
—
Manufacturing (Period)
—
Manufacturer
—
Power
Voltage
9V DC (KORG KA350) or 6x AA battery
Current (typical)
1700 mA (KA- 350)
Current (max)
1700 mA (KA- 350)
Polarity
centerpositive
Connector
DC 9V barrel + battery compartment
AC/DC
DC
Internal/External
Internal
Note
Firmware update is done by audio WAV data via SYNC IN; recommended stable power supply during update. The guitars present 9V DC, 1700 mA, center- positive parameters for KA-350.
Warning: Check the polarity of the source before connecting! Improper power supply will damage the device.
Firmware and serial number
Serial number
KVS002CUST
FW version (current)
PAJEN BETA7 (unofficial)
Check date
2026-03-06
Previous version
KORG official firmware (Volca Sample mk1)
Bootloader
Audio-file update workflow (SYNC IN)
Update Link
Backup File
.. / FW / korg-volca- sample-mk1-custom-fw _ PAJEN _ volcasample _ sys _ BETA7.wav
Quick Summary
Volca Sample mk1 with unofficial PAJEN BETA7 firmware. The profile is focused on extended MIDI functionality and practical service information.
Product Description
—
Features and functions
- PAJEN BETA7 (unofficial) for Volca Sample mk1
- Maintaining original MIDI mapping as an optional mode
- Sequencer MIDI channel (CH11) for all parties and CC
- Option to deactivate original CH1-CH10 mapping
- True chromatic note response
- Velocity sensitivity at MIDI IN
- Per- part / per- model Note Filter (trig / note / velocity)
- Trigger probability (PROB) per-part / per-model
- Bar Filter (BrFL) for 4bar structure work
- New CC for model / reverse / mute / solo / reverse
- Unlocked 2 other reverb programs
- Omni modes for live play
- Insta-drone mode
Primary I/O (quick orientation)
| Domain | Inputs | Outputs | Note |
|---|---|---|---|
| MIDI IN | MIDI IN (TRS adapter according to Volca Sample mk1 setup) | 3.5 mm stereo out (standard Volca Sample mk1 audio output, approx. -10 dBV) | Custom FW adds sequencer MIDI channel 11 + advanced mapping. |
| SYNC | 3.5 mm Sync IN | 3.5 mm Sync OUT | SYNC IN is also used for audio firmware update (.wav). |
| Audio | - | 3.5 mm stereo out | Standard Volca Sample mk1 audio output. |
Controls
FRONT / TOP (user control)
- FUNC + SQUARE KNOCK OPENING EXTENDED Menu
- Part touch cases + < > for edit per- part parameters (PROB, BrFL, ntFL)
- Sequencer and model management with new CC commands
Service / hidden elements
- When updating firmware use a clean audio output without DSP enhancer
- When problems with update check volume, cable and power
- Omni and some global settings are not persistent after shutdown
Connectors and connections
Connector matrix
| Interfaces | IN | OUT | Spec / note |
|---|---|---|---|
| MIDI IN | MIDI IN (TRS adapter according to Volca Sample mk1 setup) | 3.5 mm stereo out (standard Volca Sample mk1 audio output, approx. -10 dBV) | Custom FW adds sequencer MIDI channel 11 + advanced mapping. |
| SYNC | 3.5 mm Sync IN | 3.5 mm Sync OUT | SYNC IN is also used for audio firmware update (.wav). |
| Audio | - | 3.5 mm stereo out | Standard Volca Sample mk1 audio output. |
Latency and jitter
Clock sources
Internal, MIDI IN, Sync IN
Clock IN/OUT format
MIDI + Volca Sync
Typical latency
Not stated
Jitter spec
Not stated
Buffer support
Not stated
Impedance and signal levels
Line Level (dBu)
Not stated
Mic In level
Not stated
Output Impedance
Not stated
Input Impedance
Not stated
THD
Not stated
Frequency Range
Not stated
Other Specifications (from metadata.specifications)
| Key | Value |
|---|---|
| No other specifications | |
Additional technical details
| Key | Value |
|---|---|
| No additional technical details | |
Typical routing
- DAW - > Volca (single channel sequencing): Sequencer MIDI on CH11
• In global settings turn on 'sequencer MIDI'
• In DAW send music / CC to MIDI CH11
• For the model / reverse / mute / reverse use the custom CC 50-59 - Live keyboard mode: OMNI Mode in Extended Menu
• In LIVE mode hold FUNC and enter Extended Menu
• Select OMNI (SEL / SAMP / Patr / Py2 / Py3 / Py4)
• Play live on selected part or poly mode
Connection instructions: The examples below show typical signal flows in practice. For specific details (jitter, buffering), see section above.
SW / drivers
| Component | Windows | macOS | Linux | Note |
|---|---|---|---|---|
| No specific driver data; use the Documentation/Links section. | ||||
Custom firmware details
Author
Paryons
FW family
Volca Sample unofficial firmware
Custom FW targets
- A) Keep original MIDI implementation as optimum behavior
- B) Add sequencer channel with all parts and standard CCs
- C) Optimally deactivated channels 1 -10
- D) Add true chromatic note response
- E) Add velocities sensitivity on MIDI in
- F) Per-part / per-model trigger -note- velocities filtering
- G) Add CC for model / reverse / mute / reverse / solo control
- H) Unlock two additional reverse programs
- I) Add Omni mode variants for live play
- J) Add probability triggering
- K) Add bar filtering for 4-bar behavior
- M) Add optimum insta- drone mode
Custom CC mapping
| CC | Meaning |
|---|---|
| 50 | CC_SAMPLE |
| 51 | CC_REVERB_LEVEL |
| 52 | CC_REVERB_TYPE |
| 53 | CC_PATTERN |
| 54 | CC_SELECTED_PART |
| 55 | CC_LOOP |
| 56 | CC_REVERSE |
| 57 | CC_REVERB |
| 58 | CC_MUTE |
| 59 | CC_SOLO |
Custom FW global settings
| Settings | Meaning |
|---|---|
| 9 | original MIDI on / off (default OFF) |
| 10 | sequencer MIDI on / off (maps CH11) |
Custom FW extended menu
| Item | Detail |
|---|---|
| Omni | OFF, SEL, SAMP, PATR, Py2, Py3, Py4 |
| PROB | Per- part trigger probability |
| BrFL | Per- part bar filter (0-15) |
| ntFL | Per-part note filter (trig / note / velocity mask) |
| Rb.ty | Reverb type 0-2 |
| drone | Instal- drone on / off |
Documentation and manuals
Manufacturer / Links
- Official site of manufacturer
- eBay - search Korg Volca Sample mk1 (Custom FW)
- Aukro.cz - search Korg Volca Sample mk1 (Custom FW)
- MusebníBazar.cz - search Korg Volca Sample mk1 (Custom FW)
- MIDI.cz - search for Korg Volca Sample mk1 (Custom FW)
- Kytary.cz - search Korg Volca Sample mk1 (Custom FW)
- Heureka.cz - search Korg Volca Sample mk1 (Custom FW)
- Gear4music.cz - search Korg Volca Sample mk1 (Custom FW)
- Muziker.cz - search Korg Volca Sample mk1 (Custom FW)
Service log
| Date | Event | Who | Note |
|---|---|---|---|
| 2026-03-06 | Metadata refresh for custom firmware profile | JPG | The local manual PAJEN-7 and local FW WAV file are completed; a unified description of the custom MIDI functions. |
Presets / User banks
Storage type
Internal model / sample memory (Volca Sample mk1)
Number of banks
Not stated
Current bank
Not stated
Backup File
Not stated
Export format
Not stated
Note
Custom FW changes MIDI behavior; data management remains within Volca workflow.
Notes / service / modifications
- Custom firmware is a community / unofficial, not an official KORG release.
- The path to the manual is local:.. / MANUALS / korg-volca- sample-mk1-custom-fw _ _ PAJEN-7-USER-GUIDev0 _ 9.Preparation.
- The path to WAV firmware is local:.. / FW / korg-volca- sample-mk1-custom-fw _ PAJEN _ volcasample _ sys _ BETA7.wav.
- FW update do without audio effects / enhancer in OS audio stack.
- The image profile is currently only a TOP image; to complete FRONT / REAR after photo shoot.