planet.linuxaudio.org

July 09, 2026

News – Ubuntu Studio

Ubuntu Studio 25.10 has reached End-Of-Life (EOL)

As of July 9, 2026, all flavors of Ubuntu 25.10, including Ubuntu Studio 25.10, codenamed “Questing Quokka”, have reached end-of-life (EOL). There will be no more updates of any kind, including security updates, for this release of Ubuntu.

If you have not already done so, please upgrade to Ubuntu Studio 26.04 LTS via the instructions provided here. If you do not do so as soon as possible, you will lose the ability without additional advanced configuration.

No single release of any operating system can be supported indefinitely, and Ubuntu Studio has no exception to this rule.

Interim Ubuntu releases, meaning those that are between the Long-Term Support releases, are supported for 9 months and users are expected to upgrade after every release with a 3-month buffer following each release.

Long-Term Support releases are identified by an even numbered year-of-release and a month-of-release of April (04). Hence, the most recent Long-Term Support release is 26.04 (YY.MM = 2026.April), and the next Long-Term Support release will be 28.04 (2028.April). LTS releases for official Ubuntu flavors (not Desktop or Server which are supported for five years) are three years, meaning LTS users are expected to upgrade after every LTS release with a one-year buffer.

by eseickmeyer at July 09, 2026 11:59 PM

July 08, 2026

GStreamer News

GStreamer 1.28.5 stable bug fix release

The GStreamer team is pleased to announce another bug fix release in the new stable 1.28 release series of your favourite cross-platform multimedia framework!

This release only contains bug fixes as well as a number of security fixes. It should be safe to update from 1.28.x, and we recommend you do so at your earliest convenience.

Highlighted bugfixes:

  • Various security fixes and playback fixes
  • Fix subtitles cause green flickering with VA decoders on AMD GPUs
  • core: Fix sticky event raciness when pads are linked mid-push
  • appsrc: Uniformly handle EOS events being pushed
  • audio-resampler-neon fails to build for targets with neon but without thumb
  • avtp: Correct ptime generation from avtp timestamp
  • fmp4mux: Various fixes for splitting at fragment boundaries
  • gldownload: fix wrong DRM format negotiation causing R/B channel swap
  • gdkpixbufdec: Drop rank to NONE and handle resolution/format changes
  • gopbuffer: add support for H.266/VVC
  • h265decoder: Fix HEVC with alpha decoding
  • mp4mux: fix AC-3 template caps so muxer can accept input from ac3parse
  • mpegtsmux: Always assign PTS to output buffers in CBR mode
  • mpegtsmux: Output buffers with PCR-only bitrate-padding packets have wrong PTS
  • rtcpbuffer: Fix parsing of SR+SDES compound packets (regression from security fix)
  • rtspsrc2: Allow disabling SRTP/SRTCP encryption and SRTP authentication
  • tsdemux: Improve PTS rollover handling in ignore-pcr mode, fixing intermittent corruption with YouTube HLS streams
  • textaccumulate: output joined single buffer, add list as meta
  • threadshare: add ts-clocksync
  • webrtcsink: negotiation fixes and improvements
  • Various bug fixes, build fixes, memory leak fixes, and other stability and reliability improvements

See the GStreamer 1.28.5 release notes for more details.

Binaries for Android, iOS, Mac OS X and Windows will be available shortly and will be published on the Downloads page.

July 08, 2026 11:50 PM

July 06, 2026

Linux Archives - CDM Create Digital Music

Audio Damage ShinRonin, now free, is a throwback to 2003 plug-in design

You wake up. It’s the year 2003. Some upstart software developer called Audio Damage wants to let you patch a combo filter-delay however you like, including ways that will break your ears. Ronin is reborn as ShinRonin, from a time when software developers let you run with scissors and do strange things. This is one […]

The post Audio Damage ShinRonin, now free, is a throwback to 2003 plug-in design appeared first on CDM Create Digital Music.

by Peter Kirn at July 06, 2026 01:14 PM

blog4

impressions TMS concert

impressions from the TMS concert 19. June at Linux Audio Conference 2026 in University Maynooth, Ireland. Pictures by Jörn Nettingsmeier 
Our travel is supported by Art Music Denmark









by herrsteiner (noreply@blogger.com) at July 06, 2026 01:02 PM

July 02, 2026

blog4

purity and corruption

purity and corruption is a sound art installation created by artist Malte Steiner 2026 and first shown at his solo exhibition Assorted Realities 24. - 27. June 2026 at XM3 Aalborg (DK). Based on a XIAO SAMD21 microcontroller it generates with random parameters a pure sinus wave which got corrupted by another sinus wave by FM. The result is used to resonate a metal plate through a transducer which contributes to the corruption. The LEDs show the upper 8 bits of the 10 bit digital to analog converter of the microcontroller.



by herrsteiner (noreply@blogger.com) at July 02, 2026 08:00 PM

June 29, 2026

GStreamer News

GStreamer 1.29.2 unstable development snapshot

The GStreamer team is pleased to announce another development snapshot in the API/ABI-unstable 1.29 release series.

The API/ABI-unstable 1.29 release series is for testing and development purposes in the lead-up to the stable 1.30 series which is scheduled for release in Q4 2026. Any newly-added API can still change until that point.

This development release is primarily for developers and early adopters, and distros should probably not package it.

Highlighted changes:

  • webrtcbin2: New scalable WebRTC bin that uses fewer threads and native Rust DTLS, ICE and RTP session management implementations
  • rtspsrc2: implement support for SRTP, authentication, HTTP tunnelling, keep alive, stream selection, TLS validation, latency configuration
  • rtp2: New Rust RTP payloader and depayloader implementations for MPA audio, MPEG-2 video and raw video
  • Digitally Signed Content (DSC) support, initially for H.266 video
  • New D3D12-based element which performs color lookup operations using user-provided Adobe .cube LUT files
  • videoencoders: Support adaptive presets with resolution-dependent properties and implement in x264enc and nvh264enc
  • closedcaption: add h266seiinserter; add "do-timestamp" property to codecseiiinserter
  • flv: Add support for AV1 video
  • v4l2: add capture timestamps to buffers in v4l2src, and "bitrate" and "gop-size" properties to video encoders
  • applemedia: new iosurface helper library providing a memory:IOSurface abstraction
  • AMF: add super resolution hq-scaler component
  • New OpenGL glalphacombine element for RGBA inputs and Vulkan/OpenGL memory support for alphacombine
  • openjpeg: Add support for high bit depth formats
  • analytics: add semantic tag getter to GstAnalyticsMtd
  • tensordecoders: Add YOLO26 detection decoder
  • tfliteinference: support for external delegates, XNNPACK, and GRAY8 input
  • MP4: add support for losslessly-compressed video
  • matroskamux: add TrueHD audio and HDMV PGS subpicture support
  • playsink reconfiguration stability improvements
  • New agingradio and sofalizer audio effect elements
  • New image-rs based imagersoverlay element in Rust to replace gdkpixbufoverlay
  • webrtcsink: add v4l2h264enc (Raspberry Pi) encoder support and a signaller for Unreal Engine PixelStreaming
  • webrtcsink, webrtcsource: make custom signalling protocol extendable
  • Speech elements: implement support for non-synchronized output
  • d3d12: Add support for hardware-accelerated decoding of VP9 with alpha
  • androidmedia: New source element for Android assets
  • filesink: Add support for Windows file sharing mode to allow reading of file while it's being written to
  • tracing: custom spans and events API and new tracers that integrate with the Rust tracing ecosystem
  • editing-services: auto-plug raw video converters from the registry based on compositor memory family and prepare for multi-threaded usage
  • dots-viewer: General enhancement of the web app
  • New viuersink video sink that plays video in the terminal, replacing aasink and cacasink
  • cerbero: Added ccache support for MSVC
  • Countless bug fixes, build fixes, memory leak fixes, and other stability and reliability improvements

Binaries for Android, iOS, Mac OS X and Windows will be made available shortly at the usual location.

Release tarballs can be downloaded directly here:

As always, please give it a spin and let us know of any issues you run into by filing an issue in GitLab.

June 29, 2026 01:00 AM

June 13, 2026

rncbc.org - a.k.a. Rui Nuno Capela

Qtractor 1.6.1 - An End-of-Spring'26 Release

Qtractor 1.6.1 - An End-of-Spring'26 Release

Howdy!

Qtractor 1.6.1 (end-of-spring'26) is out!

Change-log:

  • Fixed a prolly old bug on Clip/Normalize which was cutting short on the selected clip length, giving erroneous results sometimes.
  • Added option to lock toolbars in place on the main and MIDI clip editor windows; fixed MIDI clip editor's thumb-view toolbar not saving state after close.
  • Force (disconnect) all buses/ports and (deactivate) all plugin chains on session close.
  • Updated to CLAP v1.2.8
  • Distinguish all pseudo-plugin inserts by color, on whether their processing type is either audio or MIDI (in plugin-list boxes).
  • Avoid overlapping track header name and buttons (R, M, S and A) when reducing its height.
  • Mitigate some LV2 plug-in UI X11 (native) recursive resizing.
  • Fixed the confusing behavior on drag-n-dropping audio and/or MIDI files over the main window track-list (left pane).
  • Added simplified Chinese (zh_CN) translation.

Description:

Qtractor is an audio/MIDI multi-track sequencer application written in C++ with the Qt framework. Target platform is Linux, where the Jack Audio Connection Kit (JACK) for audio and the Advanced Linux Sound Architecture (ALSA) for MIDI are the main infrastructures to evolve as a fairly-featured Linux desktop audio workstation GUI, specially dedicated to the personal home-studio.

Website:

https://qtractor.org

Project page:

https://sourceforge.net/projects/qtractor

Downloads:

https://sourceforge.net/projects/qtractor/files

Git repos:

https://git.code.sf.net/p/qtractor/code
https://github.com/rncbc/qtractor.git
https://gitlab.com/rncbc/qtractor.git
https://codeberg.org/rncbc/qtractor.git

Wiki:

https://sourceforge.net/p/qtractor/wiki/

License:

Qtractor is free, open-source Linux Audio software, distributed under the terms of the GNU General Public License (GPL) version 2 or later.

Enjoy && Keep the fun!

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by rncbc at June 13, 2026 11:00 AM

June 11, 2026

drobilla.net - LAD

MDA.lv2 1.2.12

MDA.lv2 1.2.12 has been released. This is a port of the MDA VST plugins to LV2.

Changes:

  • Avoid over-use of yielding meson options
  • Fix build with MSVC 2022
  • Fix strict aliasing violation
  • Fix use of uninitialized values in TalkBox
  • Improve const-correctness
  • Remove development symbols from modules by default
  • Use a deterministic and more uniform RNG

by drobilla at June 11, 2026 11:31 PM

Jalv 1.10.0

Jalv 1.10.0 has been released. Jalv (JAck LV2) is a simple host for LV2 plugins. It runs a plugin, and exposes the plugin ports to the system, essentially making the plugin an application. For more information, see http://drobilla.net/software/jalv.

Changes:

  • Add block length command-line parameter for PortAudio
  • Fix PortAudio backend
  • Fix crash with plugins that have non-event inputs
  • Fix stale parameter descriptions in man pages
  • Fully implement fixedBlockLength and powerOf2BlockLength
  • Gracefully handle failure to open audio backend in Gtk interface
  • Update meson fallback subproject wrap files

by drobilla at June 11, 2026 11:18 PM

June 09, 2026

Linux Archives - CDM Create Digital Music

Unfiltered Audio Battalion drum synth, FX in VCV Rack are a revelation

At attention! Unfiltered Audio has taken their deep drum synth and favorite effects and remade them as VCV Rack modules. This is instabuy territory ($10-20 a la carte or an intro pricing of $30 for the set, compatible with the free Rack).

The post Unfiltered Audio Battalion drum synth, FX in VCV Rack are a revelation appeared first on CDM Create Digital Music.

by Peter Kirn at June 09, 2026 11:54 AM

June 03, 2026

rncbc.org - a.k.a. Rui Nuno Capela

QmidiCtl 1.0.3 - A Mid-Spring'26 Release

QmidiCtl 1.0.3 - A Mid-Spring'26 Release

Hi again!

QmidiCtl 1.0.3 (mid-spring'26) is out!

QmidiCtl is a MIDI remote controller application that sends MIDI data over the network, using UDP/IP multicast. Inspired by multimidicast (https://llg.cubic.org/tools) and designed to be compatible with ipMIDI for Windows (https://nerds.de). QmidiCtl was long ago designed for the Maemo enabled handheld devices, namely the late Nokia N900 and promoted to the Maemo Package repositories. Nevertheless, QmidiCtl may still be found effective as a regular desktop application and recently as an Android application as well.

See also: QmidiNet - A MIDI network gateway via UDP/IP multicast.

Change-log:

  • Get rid of CONFIG_WAYLAND build config option; add underlying platform name (eg. xcb, wayland) to Qt version string.
  • Bumping into next development cycle (Qt >= 6.11)
Website:
https://qmidictl.sourceforge.io
http://qmidictl.sourceforge.net
Project page:
https://sourceforge.net/projects/qmidictl
Downloads:
https://sourceforge.net/projects/qmidictl/files

Git repos:

https://git.code.sf.net/p/qmidictl/code
https://github.com/rncbc/qmidictl.git
https://gitlab.com/rncbc/qmidictl.git
https://codeberg.org/rncbc/qmidictl.git

License:

QmidiCtl is free, open-source Linux Audio software, distributed under the terms of the GNU General Public License (GPL) version 2 or later.

 

Enjoy && Have fun.

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by rncbc at June 03, 2026 06:00 AM

May 23, 2026

Testbit

Are Local LLMs Ready for Production?

In 2018 I recreated this blog with an SSG (Static Site Generator) in Python based on pandoc (asciidoctor for older pages), git timestamps and Jinja2 templates. Even though it cached pandoc invocations, building still took too long for my taste and lately I didn’t really feel at ease with modifying…

May 23, 2026 04:48 PM

May 20, 2026

Home on Libre Arts

ALSA Scarlett GUI 1.0beta9

Geoffrey D. Bennett has just released a major update of ALSA Scarlett GUI, a control program for Focusrite’s Scarlett, Clarett, and Vocaster audio interfaces.

DSP control

For Vocaster One and Two, Geoffrey added controls for the built-in DSP that includes a pre-compressor filter, a compressor, and a parametric EQ.

DSP controls

The controls on the pre-compressor filter and parametric EQ graphs are interactive: you can pick handles and move them around (Q can only be edited numerically though, it seems).

You can also choose between 12 filter types:

Filter types in DSP controls of ALSA Scarlett GUI

Configuration

This is another new window where you can toggle the visibility of unused channels, set stereo linking, and give custom names to inputs and outputs.

Configuration window for Vocaster Two in ALSA Scarlett GUI

In addition, you can set the target level for the Autogain feature.

For models with larger number of IOs (think Gen4 18i20), this is also where you control monitor groups:

Monitor groups in ALSA Scarlett GUI

Routing window updates

There have been some improvements here:

  • Routing lines now display a real-time glow effect that reflects the audio signal level passing through the connection.
  • When a routing connection has a hidden port, there’s an arrow indicator at the visible end now.
  • Adjacent stereo-linked channels are now displayed as a single stereo port.
  • On 4th Gen 16i16/18i16/18i20 interfaces with monitor groups configured, the routing window now shows the effective audio routing.

Mixer window updates

Just like Routing, the Mixer window got its share of UX/UI updates:

  • Mixer input and output labels now display a real-time horizontal glow bar that reflects the signal level at that port.
  • Gain knobs now include a signal level meter inside the dial (except for Gen1 devices that don’t support it).
  • When channels are stereo-linked, the mixer displays them as a single stereo fader.

Presets

You can now save and restore presets from the main window.

Firmware update changes

For the 4gen devices with larger number of IOs, the program now support multi-step firmware upgrade: leapfrog, then ESP, then application.

Device support

The changes mainly affect the “big 4gen” devices and Vocaster units:

  • Scarlett Big 4th Gen (16i16, 18i16, 18i20) support now includes hardware identification, monitor groups, input mute, and output volume/mute/dim controls.
  • Vocaster interfaces now have dedicated mute controls for speaker and headphone outputs in the main window.

For more detailed info, please see release notes.

May 20, 2026 12:00 AM

May 19, 2026

Ardour 9.5 released

We are pleased to announce the release of Ardour 9.5. The new version comes with new features, quality-of-life improvements, and bugfixes. For this release, we focused on MIDI editing and implemented chord editing and reference (ghost) notes display in pianoroll interfaces.

For the curious, yes, we did “release” both 9.3 and 9.4 but the binary packages were missing the chord definitions file that is central to one of the major features of this release cycle. Having realized the mistake, we took the opportunity to do a bit more polishing and bug fixing before finally packaging 9.5. Steps have been taken so that anyone who paid for either the 9.3 or 9.4 packages has been marked as paying for 9.5 instead, and their download count reset to zero. If you are such a person and have issues downloading 9.5, contact help@ardour.org

The full release notes are, as usual over here and you can download this release from the usual place.

48 posts - 21 participants

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by Paul Davis at May 19, 2026 05:30 PM

May 11, 2026

digital audio hacks – Hackaday

Binaural Microphone on a Budget

For as many speakers as someone can cram into a surround sound system, humans still (generally) only have two ears to listen to those sounds with. This means that, for recording purposes, it’s possible to create incredibly vivid three-dimensional sounds with just two microphones, provided that there’s an actual physical replica of a human ear attached to each microphone. This helps ensure that all the qualities of the sounds are preserved in a way a real human would experience them, and as [David Green] demonstrates, these systems don’t need to be very expensive.

This build doesn’t just use models of human ears for recording sounds through. The silicone ears are mounted on a styrofoam mannequin head as well, which provides some sound isolation between the two microphones, much like a real human head. The ears are mounted in appropriate locations with the microphones installed inside, and the entire microphone apparatus is positioned on a PVC rig with a camera so that binaural audio will be recorded for anything [David] points it at.

Although he had some issues interfacing two microphones using 19th-century technology instead of soldering everything together, the build still eventually came together, and only for around $70 USD. However, this build is a bit dated now, so prices may have changed by now. It’s still a great way to produce realistic stereo sound without breaking the bank, but it’s not the only way of getting this job done.

by Bryan Cockfield at May 11, 2026 02:00 AM

May 10, 2026

digital audio hacks – Hackaday

Speech Jammer Gets Jammed Up

This project is perhaps the single most passive-aggressive thing we’ve ever seen on this site: rather than tell someone directly to ‘shut up’, [Blytical]’s speech jammer lets you hack their brain from across the room to stop them from speaking. It’s also a bit of an object lesson in why you shouldn’t just copy reference implementations without careful study — by his own implementation, [Blytical] was forced to learn a lot more than he intended going into this project.

The brain hack behind it is called ‘delayed auditory feedback’: by feeding their speech back to the target with a short delay — only 50 to 200 ms — it creates a confounding effect that is apparently very difficult to speak through. The array of ultrasound transducers is used to accurately aim the audio by serving as an inaudible, low-spread carrier wave, as we saw in another project this year. A shotgun mike picks up the audio from the speaker you wish to harass, and an array of audio processing circuitry takes care of the rest.

That’s where problems happen, as [Blytical] admits he just tossed some reference implementations onto a PCB without bothering to think too hard about what he was doing. It’s the datasheet version of vibe coding, and it usually goes about as well — sometimes perfectly, but rarely without a lot of troubleshooting. That troubleshooting is really, really hard when you don’t quite understand why things were laid out the way they were on the datasheet. We don’t blame [Blytical], you can learn a lot when you bite off more than you can chew. The fact that he risked this failure mode rather than do the whole thing in software with a Pi says good things about how he’s conducting his education.

It’s a shame, though, because we’ve been waiting to see another one of these speech jammers in action for quite some time. Perhaps someone will try again; the ultrasonic array portion seems solved, so if the delay circuit was the problem, perhaps a tiny tape loop would suffice.

by Tyler August at May 10, 2026 11:00 AM

News – Ubuntu Studio

Ubuntu Studio’s New Home: What’s Changing and Why

Homepage of Ubuntu Studio showcasing a content creation studio with various creative tools including musical instruments, a camera, and editing software elements.

Ubuntu Studio’s web presence has been spread across several Canonical-hosted systems for a long time: the main website on an old Canonical web server, the Ubuntu Community Help Wiki at help.ubuntu.com/community/UbuntuStudio, and the Ubuntu Developer Wiki at wiki.ubuntu.com/UbuntuStudio. Those platforms served their purpose, but each had become a poor fit for how the project actually works today.

What’s Moving

The main Ubuntu Studio website has already moved away from Canonical hosting and onto its current home. That move was driven by necessity: Canonical shut down the old web server that had hosted the site, so Ubuntu Studio needed a new home for its primary web presence. This has been a mostly transparent process and most users would never have noticed a difference.

Screenshot of the Ubuntu Studio Community Help page, featuring sections for user and developer wikis, support information, and links to contributions and resources.

The Community Help Wiki — the place where users have always gone to find answers about audio configuration, hardware support, the Audio Handbook, and getting started with Ubuntu Studio — is being mirrored and maintained directly on ubuntustudio.org at /help/. Every page you’re used to is coming with us: the Pro Audio Intro, the Ubuntu Studio Audio Handbook and all its chapters, the FAQ, hardware support information, terminal basics, troubleshooting guides, and community information. Most of this is outdated now, and we need help to bring it up to modernization.

Screenshot of the Ubuntu Studio developer wiki homepage featuring navigation links, a welcome message, and information about the Ubuntu Studio project and community.

The Developer Wiki — home to the team’s internal processes, release planning, testing documentation, artwork resources, and packaging and development notes — is moving to ubuntustudio.org at /wiki/. The full section structure is preserved: Testing, PR & Support, Artwork, Packaging/Development, Documentation, and Organization are all there. This information is also outdated.

Why Now

The website move and the wiki move do not have exactly the same origin.

For the main website, the trigger was straightforward: Canonical shut down the old web server that hosted it. Ubuntu Studio had to move the site in order to keep a public home on the web.

For the help and developer wikis, the issue was the editing experience and maintenance burden. The old MoinMoin-based wiki workflow is cumbersome, slow, and awkward to work with. Its markup is not standard Markdown, which makes editing, reviewing, and migrating content more difficult than it should be. Over time, that friction made it harder to keep pages current, fix outdated instructions, and encourage casual contributors to improve documentation.

Meanwhile, ubuntustudio.org has been running on WordPress for some time, and the team has been using GitHub for development work. By routing our documentation through a GitHub repository — using the Git it Write plugin to publish markdown directly to WordPress — we get something we’ve never really had before: a documentation workflow that fits naturally alongside our other development work. Pull requests, issue tracking, version history, and a low barrier to entry for new contributors all come with it.

What This Means for Contributors

If you’ve ever wanted to fix something on the old wiki and been put off by the process, this is your opening. The content lives in a public GitHub repository. Find the file, fix the text, open a pull request. That’s it.

The content is organized into buckets that map to the old wiki structure:

  • help/content/support/ — support pages (FAQ, hardware, audio configuration, etc.)
  • help/content/handbook/ — the Audio Handbook and Pro Audio Intro
  • help/content/community/ — IRC, mailing lists, joining the team
  • help/content/reference/ — resources, links, wiki guide
  • wiki/content/ubuntu-studio/ — developer wiki pages

If you’re editing a page that has outdated information, and there’s plenty of it, particularly around the old PulseAudio/JACK workflow that predates PipeWire — this is the place to update it.

What Isn’t Changing

The old wiki pages at help.ubuntu.com and wiki.ubuntu.com aren’t going anywhere immediately. Canonical maintains those as part of Ubuntu infrastructure, and they’ll continue to exist. Our goal isn’t to break any existing bookmarks or search results, it’s to have a home where we can keep things current.

We’re also not rewriting the documentation wholesale. The content of the mirrored pages is as faithful to the originals as it can be, with updates where the old guidance referred to software or workflows that no longer apply to current Ubuntu Studio releases.

Where to Find Everything

If you find something wrong, missing, or out of date — open a pull request, or file an issue and let the team know.

by eseickmeyer at May 10, 2026 02:25 AM

May 01, 2026

Home on Libre Arts

GSoC2026: what to expect

Google has just published the list of students accepted into the Google Summer of Code 2026 program.

Some of the teams usually participating are off this year: Krita and Inkscape are temporarily out of mentors. Let’s take a look at the rest of them.

GIMP

Akascape will completely revamp the keyboard shortcuts configuration dialog and add support for importing and exporting presets, as well as support for multiple shortcuts per action.

blezecon will work on creating an automated infrastructure for validating, publishing, and distributing GIMP extensions.

v4vansh will update GIMP’s text engine to use HarfBuzz directly to extract font data, so that you have better control over formatting and access to various OpenType features.

Waris Maqbool will create PSD-compatible gegl:inner-glow and gegl:bevel operations to use in the PSD importer. They will also port the legacy Sharpen to make it a GEGL meta-operation.

Graphite

This vector/bitmap editor is still relatively unknown, and yet this isn’t the first time they are GSoC participants.

∅space will add currently missing support for SVG features like gradients, patterns, and a text-on-path. They will also create a fallback system so that currently unsupported (as in editing) features would be rasterized and imported as bitmaps.

Ayush Amawate will refactor the on-canvas gizmo code to remove duplicated code and add reusable gizmos (slider, dial, angle) for shape-drawing tools.

Bunnyy aims to improve the text functionality: add a lorem ipsum generator, formatting spans and typographical parameters, text on path, commands to enforce lower-/upper-/title-casing, hyphenation, font fallbacks, flows between text areas, ligatures and vertical typing toggles, and so on.

Timon Schelling will be adding a GPU-accelerated brush engine. The plan is to introduce non-destructive, resolution-independent stroke rendering with support for stylus pressure and tilt.

Yohei Yamasaki will refactor Graphite to create a more generalized graphic representation of paints (colors, gradients, patterns, etc.) as ordinary layers. The net outcome will be dedicated Gradient and Pattern nodes, as well as updated Fill and Stroke nodes.

Synfig

ahmedfathy0-0 will add a lattice-based free-form deformation layer to enable organic deformations like squash-and-stretch or facial movements.

Yukta will add per-character text animation support so that things like a typewriter effect are easy to achieve.

Digikam

Srirupa Datta will add an new interface to the database search engine and hook up a lightweight LLM to translate natural-language requests into the right combination of structured filters.

Blender

Bipin_ will be adding importing and exporting of OpenTimelineIO (.otio) files to VSE.

il4n will add handles to transitions such as crossfades in the VSE, so that users can move the transitions and change their length.

Criss-Ivana will port the following matrix & math utility nodes into the Compositor: Matrix SVD, Bit Math, Boolean Math, Integer Math, Compare, Float To Int, Hash Value, and Random Value.

Evan Luo will improve mesh smoothing by overcome fundamental limitations, such as volume shrinkage, no frequency selectivity, and selection boundary artifacts.

Henry Jiang will improve loop editing: add clone support for Edge Slide, implement edge loop adjustment via spline interpolation, and add loop cut curvature preservation.

Jerry Wei will improve the brush engine: add brush tip roundness for more brushes, customizable pressure curves for all pressure-sensitive parameters, customizable brush toggling and improved toggle display, etc.

Owen O’Malley will introduce the MaterialX standard node library into Blender’s shader editor as first-class native nodes.

Yogeshgouda_Patil will improve regression test coverage.

FreeCAD

Aymi will be working on bridging the 3rd-party Motion workbench with the FEM workbench to created animated multibody dynamics visualizations. It’s going to be a very challenging project, but she has great mentors on her side: long-time FEM contributor Mario Alexis and multi-body dynamics expert Aik-Siong Koh who is behind the assembly solver of FreeCAD and one of the two developers behind MbdFEM.

Morten Vajhøj will be overhauling the user experience in the TechDraw workbench. His focus will be on changing the way you annotate geometry: instead of selecting an object and then choosing the command you will now select what you want to do and then what to apply it to. This will bring TD in line with the rest of FreeCAD. Of course, applicable objects under the cursor will be highlighted, and inapplicable objects will be unavailable for the selected tool.

Nishendra Singh will attempt to revive and modernize the Robot workbench. This is going to be a colossal effort that, I’ve no doubt, will have to continue past the GSoC22026 deadline. This project’s scope is replacing CSV/DH file imports with URDF imports, exporting the joint & trajectory data, Orocos KDL kinematics library refresh (currently years behind the upstream), and updating the documentation.

Parag Debnath will integrate the buildingSMART Data Dictionary into the BIM workbench, so you can search and apply international classification standards from the cloud to selected IFC entities.

YashSuthar983 will create an initial version of the 3D parametric sketching workbench that could be later merged into the existing Sketcher workbench. For that, the student will extend the existing PlaneGCS solver to 3D by adding new primitives and spatial constraints.

Some of the students have been active in the project recently. Morten Vajhøj has 8 pull requests for the Measure tool merged. For YashSuthar983, 25 pull requests have already been merged (mainly around the core, Sketcher, and the Measure tool), another 5 PRs are open (for Sketcher, the Measure tool, and PartDesign).

BRL-CAD et al.

In the Google Summer of Code program, BRL-CAD is an umbrella organization comprised of OpenSCAD, IfcOpenShell, Bonsai BIM (formerly Blender BIM), and BRL-CAD itself.

AnshulPatil2005 will improve Manifold’s CI and benchmarking by adding missing determinism, sanitizer, and performance regression checks.

Bidyendu will add an optional AI assistant for OpenSCAD using either locally running models via Ollama or any OpenAI-compatible server, at user’s preference. The intention is to give users the ability to use the benefits of AI without compromising privacy.

RaghavSharma0125 will add an MCP server to BRL-CAD, so you can interact with the program through any external MCP client.

Kanchan Borole will improve the Geometry Verification and Validation (V&V) user interface in Arbalest, the Qt-based UI for BRL-CAD.

MYoder will enhance Bonsai BIM (formerly Blender BIM) with tools for BIM-type modeling of roadways using the IFC 4.3 schema. TThe scope of the project is vertical alignments (horizontal already implemented), cross-section profiles, and corridor generation.

Pitivi

The video editor has been participating at GSoC for years through the GNOME Foundation org. This year, Michael Calabrese will be rewriting the timeline ruler in GTK4/Rust to make it more robust.

Kdenlive

Yash Bavadiya will improve the UI for three parts of the program: create a tabbed per-channel widget for the Curves effect, implement a gradient editor with arbitrary draggable color stops, and add Bezier handle support on RemapView connector lines with easing presets for the Time Remapping panel.

Mixxx

Ayush Sah will rebuild the LateNight skin as a 100% native QML interface. This is supposed to reduce the CPU overhead and bring cleaner architecture.

Priyanshuwu will add PipeWire support so that audio can be freely routed. They will also attempt to achieve ALSA-comparable latency with the new audio backend.

GRAME

GRAME is not a very well-known org, but if you are into audio, you may have heard of Faust, a functional programming language for sound synthesis and audio processing. There are two very cool GSoC projects this year.

Blake North will be integrating Faust into Bespoke Synth. Essentially, you will be able to edit and run Faust programs in real-time.

Another student, Mithaniel V., will integrate Faust into the Godot game engine. There will be two deliverables: a Faust Godot extension and a command line tool to compile Faust programs into Godot native language statically.

More projects

I don’t usually cover VLC and FFmpeg, but they do have students this year as well.

If you are interested in astronomy and space exploration, check our OpenAstronomy and LibreCube projects.

May 01, 2026 12:00 AM

April 20, 2026

Audio – Stefan Westerfeld's blog

New in liquidsfz-0.4.1

I didn’t have time yet to blog about liquidsfz-0.4.1, which was released two weeks ago, so here is a quick overview of the bigger changes.

The .sfz parser was made more robust, which means that broken .sfz files (there are some files out there which load fine in sforzando but have questionable syntax) can be loaded with a best-effort strategy. These files now produce warnings instead of an error.

Three different problems were fixed that could in some situations cause audible clicks, so updating from a previous version is recommended. A few smaller fixes (and two new opcodes) improve compatibility with more .sfz files. Finally, some improvements were made to the LV2 plugin.

by Stefan Westerfeld at April 20, 2026 10:30 AM

March 26, 2026

Testbit

Imagewmark 0.6.0 Release

What Is Imagewmark? How do you embed a secret message into an image that survives cropping, scaling, and compression without needing the original source to decode it? Imagewmark is a Free Software tool that does exactly this. It embeds encrypted invisible digital watermarks (128 bits) into images…

March 26, 2026 08:35 PM