This page lists the suggested projects for students working on Mixxx as part of Google Summer of Code 2021.

If you are interested in applying to GSoC, read GSoC Advice before applying or getting involved. Only students that are active members of the Mixxx community are accepted. If this is not the case yet, just say hello at https://mixxx.zulipchat.com and discuss your Ideas and use cases with us.

Open Sound Control (OSC) is a descriptive network protocol that suits to remote control Mixxx via a standard interface.

There where various promising attempts to integrate that into Mixxx, but nothing has landed into the code base yet.

• https://github.com/mixxxdj/mixxx/wiki/OSC%20Backend
• https://github.com/mixxxdj/mixxx/wiki/OSC-Client
• https://github.com/mixxxdj/mixxx/pull/2078
• https://github.com/mixxxdj/mixxx/pull/2064
• https://github.com/mixxxdj/mixxx/pull/2062

In this project you should evaluate the exiting OSC Mixxx code for building a custom touch controller using Open Stage Control https://openstagecontrol.ammd.net/

The discovered issues and short comings shall be ironed out and you should finally deliver a stream lined experience for integrating Mixxx and Open Stage Control.

The current controller mapping system has a lot of inconveniences and limitations. The community has been brainstorming plans for a new controller mapping system. This project would start implementing the new system.

Some Controller mappings have implemented a Spin-Up/Spin-Down to mimic the inertia of a turn table. This should be moved into the engine, so that it is accessible without a controller.

Some Controller mappings have implemented a Fader-Start feature. This allows to start a track by pulling the line fader-up. This should be accessible without a controller.

Our scratching algorithm suffers from jitter noise created by the latency of the midi messages. This can be improved by considering the time stamps of the midi messages.

Currently crossfader changes are stretched on audio buffer time to avoid pop sounds. This is too long for some scratching styles.

Mixxx uses a linear resample when scratching. This is blazing fast, but the sound can be improved. Here Mixxx should provide more resample options.

If a controller is accidentally unplugged it has to be manually reconfigured, which is a party stopper. Mixxx should do it automatically .

Allow to create a Windows widget form skins.

PR #2656 allows to assign custom tags to tracks. The feature is almost finished (database and file import/export) but lacking a decent UI for managing and searching custom tags.

As always with Summer of Code, you aren't limited to the suggestions we've made here. If you've got a great idea for a project involving Mixxx then we're looking forward to hearing about it. We recommend spending more than a few days using Mixxx and participating in the community to develop a better understanding of areas where Mixxx could use improvement. Our bug tracker is full of wishlist bugs and other ideas scattered throughout, so if you browse through it, you may find many more ideas for GSoC projects.

IMPORTANT: You should contact us first to get feedback if you're going to submit a proposal for your own project idea! We very rarely approve ideas students propose. If you're not already experienced with DJ equipment, we recommend sticking with one of the ideas above.