
By jaymack
Thu Mar 27, 2025 2:38 pm
MPC 3.4.3 Release Notes
MPC 3 Firmware Update
Compatibility
This release is for MPC Key 37, MPC One+, MPC X Special Edition, MPC Key 61, MPC One, MPC Live II, MPC X and MPC Live hardware.
Desktop Software
In controller mode MPC remains compatible with the MPC 2.15 desktop software. However, please note that projects created in Standalone Mode on version 3.4 are not backward-compatible with the MPC 2.15 desktop software.
Downloading the Firmware Update
To download the 3.4 Firmware Update, use the online updater or navigate to MPC Software & Firmware Downloads and select the appropriate download.
For instructions on installing these updates, please visit our support page here.
Ongoing Improvements
We deeply appreciate the feedback from our MPC 3 beta users. Two key areas—Time Signature Support and the MIDI Note Off issue—have been at the forefront of your input. Please rest assured that we are actively working to address these concerns in a future update.
Bug Fixes
Using Convert to Sequence in Song Mode no longer causes a crash
Using Audio Mixdown on separate tracks with returns now only contains audio for the specific track. Other tracks cannot be heard in the resulting audio file
Improvements made for handling large sample loading
Splice is now present in Browser shortcuts
Wi-Fi Firmware upgrade to improve connectivity issues
For MIDI tracks, in Track Edit the MIDI CC Filter parameter filters MIDI CC messages correctly
Keygroup parameters load with the correct defaults when creating a new Keygroup track or when updating the current track type to Keygroup
When editing insert effects in Sampler mode the Q-links now assign correctly when in Screen mode
Resolved an issue in Drumsynth Multi where adjusting certain parameters of one drumsynth would affect parameters of another
For Drum and Keygroup tracks, Layer Play “Random” is no longer biased towards Layer 1
Using “Convert to Keygroup” in Track Edit for a pad on a drum track now creates a legacy keygroup which retains the parameter settings from the Drum track
Known Issues
Larger projects from 3.4.1 can fail to load with memory error
Factory Drum content does not display in Sounds mode for MPC One, MPC One+ and MPC Keys 37
After loading a project from an external drive, if the drive has been force ejected and reconnected, saving the project can result in missing samples when the project is loaded
Single Solo behaviour sometimes cancels when switching between multiple tracks
If event automation exists, inserting bars before bar 1 causes tracks to be event-muted in that region
Event Mute cannot be assigned in Q-Link Edit / MIDI Learn
Toggling effects on/off on 2 or more simultaneously causes UI to become out of sync
Activations list not accurate on first startup after updating
Metronome does't sound when set to Mono Output
Multiple uses of Double Length with Events on Arrangement causes UI to freeze
Load to Pool not working for Splice files on external drives
Program Changes with LSB & MSB cause note conflicts
Track Length setting is fixed in copied sequences
Using number pad to set Bank MSB and Bank LSB values for a MIDI track results in wrong value being set
MPC 3 Firmware Update
Compatibility
This release is for MPC Key 37, MPC One+, MPC X Special Edition, MPC Key 61, MPC One, MPC Live II, MPC X and MPC Live hardware.
Desktop Software
In controller mode MPC remains compatible with the MPC 2.15 desktop software. However, please note that projects created in Standalone Mode on version 3.4 are not backward-compatible with the MPC 2.15 desktop software.
Downloading the Firmware Update
To download the 3.4 Firmware Update, use the online updater or navigate to MPC Software & Firmware Downloads and select the appropriate download.
For instructions on installing these updates, please visit our support page here.
Ongoing Improvements
We deeply appreciate the feedback from our MPC 3 beta users. Two key areas—Time Signature Support and the MIDI Note Off issue—have been at the forefront of your input. Please rest assured that we are actively working to address these concerns in a future update.
Bug Fixes
Using Convert to Sequence in Song Mode no longer causes a crash
Using Audio Mixdown on separate tracks with returns now only contains audio for the specific track. Other tracks cannot be heard in the resulting audio file
Improvements made for handling large sample loading
Splice is now present in Browser shortcuts
Wi-Fi Firmware upgrade to improve connectivity issues
For MIDI tracks, in Track Edit the MIDI CC Filter parameter filters MIDI CC messages correctly
Keygroup parameters load with the correct defaults when creating a new Keygroup track or when updating the current track type to Keygroup
When editing insert effects in Sampler mode the Q-links now assign correctly when in Screen mode
Resolved an issue in Drumsynth Multi where adjusting certain parameters of one drumsynth would affect parameters of another
For Drum and Keygroup tracks, Layer Play “Random” is no longer biased towards Layer 1
Using “Convert to Keygroup” in Track Edit for a pad on a drum track now creates a legacy keygroup which retains the parameter settings from the Drum track
Known Issues
Larger projects from 3.4.1 can fail to load with memory error
Factory Drum content does not display in Sounds mode for MPC One, MPC One+ and MPC Keys 37
After loading a project from an external drive, if the drive has been force ejected and reconnected, saving the project can result in missing samples when the project is loaded
Single Solo behaviour sometimes cancels when switching between multiple tracks
If event automation exists, inserting bars before bar 1 causes tracks to be event-muted in that region
Event Mute cannot be assigned in Q-Link Edit / MIDI Learn
Toggling effects on/off on 2 or more simultaneously causes UI to become out of sync
Activations list not accurate on first startup after updating
Metronome does't sound when set to Mono Output
Multiple uses of Double Length with Events on Arrangement causes UI to freeze
Load to Pool not working for Splice files on external drives
Program Changes with LSB & MSB cause note conflicts
Track Length setting is fixed in copied sequences
Using number pad to set Bank MSB and Bank LSB values for a MIDI track results in wrong value being set




