Mixxx 2.5.3 was released today as the latest stable version of this open-source DJ software, which enables you to create and perform creative live mixes with digital music files.
Coming two and a half months after Mixxx 2.5.2, the Mixxx 2.5.3 release brings improvements to the Digital Vinyl System (DVS) support to properly and more accurately represent the pitch control slider on the turntable or CD player. Also, the Alpha-Beta filter was replaced with a more advanced Kalman-Filter equivalent.
“In Mixxx, the Kalman-Filter uses a probabilistic model of the vinyl movements to predict the velocity, very similar to the Alpha-Beta Filter. This predicted speed is compared with the noisy crackling input signal. The deviation is fed back into the filter and slightly alters its internal state for the next prediction,” said the devs.
The Digital Vinyl System also received a quadrature phase tracker, improvements to the measurements used by the Kalman filter, and a new check to detect if measurements were skipped or if they are larger than assumed, which should improve backspins.
This release also introduces support for the Icon P1-Nano MIDI 1 controller, as well as updated mappings for the Traktor Kontrol S2 Mk1, Traktor Kontrol S4 Mk3, Traktor Kontrol S3, and Numark NS6II controllers.
Among other changes, Mixxx 2.5.3 drops support for Ubuntu 24.10 (Oracular Oriole) as has now reached end of life, adds the qt6-svg-plugins package to the Debian (DEB) package, adds support for building the sources with GCC 15 and Link Time Optimization (LTO), and improves the ‘Sound Hardware’ preference.
Check out the release notes for more details about the changes introduced in Mixxx 2.5.3, which you can download and install as a Flatpak app from Flathub or as a source tarball if you fancy compiling software from sources. Of course, you’ll also be able to install Mixxx from your distro’s stable software repositories.

