Mitch
June 30, 2025, 3:05pm
1
Synth 1.3.1 Beta #1
This Beta addresses issues with DWA patch browsing and pitch instability on long samples.
Fixes
Improved Patch Browsing of Sample Based Synth Engines
DWA Pitch stabilized with longer samples
Synth Firmware: Synth_v1.3.1.1907beta.psf.zip (2.0 MB)
Download and extract the firmware above
Copy the .psf firmware file to your Synth SD card → Firmware folder
Best Practice: save your current scene to avoid any potential data loss!
On the Synth menu navigate to Main Menu → System Settings → Firmware → Update Firmware → .psf file
Click the encoder and confirm with Yes
After the update create a new scene to initialize the config settings
9 Likes
I just tried it with 3 DWA engines a moment ago, and I haven’t found any issues so far.
I really like this beta too! ^^
Is it possible to know what the maximum sample file length the DWA engine can support is?
Mitch
June 30, 2025, 5:53pm
4
Thanks Martin, good question. I know it varies by sample settings but I’ll find out the length for 16bit 44.1kz samples in mono - as anything larger than that just creates a bigger file but loads 16bit 44.1 mono.
1 Like
Mitch
June 30, 2025, 6:17pm
5
Samples over 5mb are not supported or tested, so if loaded there may be issues with playback for samples over 5mb like pitch deviation, aliasing etc.
4 Likes
Thanks for your quick answers, Mitch!
I’ll do my testing within those limits then! ^ ^
thank you for this! It would be amazing if scene changes with program changes could be addressed in the next firmware, especially as I have a life set coming soon in which would enable me to change the key for different sections. I know others would love this feature too.
2 Likes
Program change for scenes.
Yes, I want that too.
It’s far more logical.
1 Like
Am I correct to assume this beta addresses this bug:
Bug Description
I also noticed a massive lag that occurs when stepping through the DWA patches, it seems that samples are loaded immediately, which blocks advancing to the next preset. A slight delay when loading samples might do the trick.
Steps to Reproduce
open the patch browser
select DWA
turn the encoder 10 clicks
Observe how long it takes until the 10th preset is selected
Occurrence / Frequency
Always
Found in Firmware
Version: 1.3.0
Build: 1846
Attachments
–
Any chance we get this other annoying bug fixed, too?
Bug Description
Im trying to modulate the filter envelopes (env1) decay or sustain with a LFO and nothing is happening. I crank the modulation to the max but i cant hear the change in the sound.
My Lfo is at slow rate and its on free running.
I also get 0 results when i modulate amp and wave sustain with a lfo
Reproduction Steps
I modulate the filter envelopes (env1) decay or sustain with a LFO and nothing is happening
Occurrence
*bug is reproducible always
Found in
go to Config > Firmware…
Mitch
September 3, 2025, 6:13pm
11
Yes, it does address this issue. The mod matrix will be addressed too, but not in 1.3.1.
Mitch
September 5, 2025, 4:04pm
12
Officially released as Synth 1.3.1. If you are using the beta no need to update! Synth downloads • Polyend