 Tiny Qt Music Player to keep your favorite songs at hand. 
    

Vvave

Rhyme

vimix performs graphical mixing and blending of several movie clips and
   computer generated graphics, with image processing effects in real-time. 
   Its intuitive and hands-on user interface gives direct control on image opacity and
   shape for producing live graphics during concerts and VJ-ing sessions.
      Can read almost all video codecs (hardware accelerated for many),
   Open Sound Control remote control, live screen recoding. See docmentation in the github wiki.
    

vimix

Ex Falso is a tag editor with the same tag editing interface as Quod Libet. It lets you display and edit any tags you want in the file, for all the file formats it supports.Supported file formats include Ogg Vorbis/Opus/Speex/FLAC, MP3, FLAC, MOD/XM/IT, Musepack, Wavpack, MPEG-4 AAC, Monkeys Audio, WMA, SPC, MIDI.

Ex Falso


      Pure Data (or just "Pd") is an open source visual programming language for multimedia. Pure Data is developed by Miller Puckette since 1996 and you can find it on his official website along with the official documentation and other related resources. This is the official "Pd" or "main distribution" and it is also known as "Pd Vanilla".
    
      
      Think of Pd as a &lt;em&gt;Modular Synthesizer&lt;/em&gt; that is also a programming language.
    
      
      Pd's audio and MIDI functions are built-in as well as networking (e.g. using Open Sound Control), but there are a number of external libraries that allow you to do graphics, interface hardware and much more...
    
    

Pure Data (Pd)

A real-time graphical programming environment for live interactive computer music

X Air Edit is the companion application the Behringer XR mixers. It gives full control on mixing and effect processing as well as provides live metering data.

X Air Edit

SonoBus is an application for streaming high-quality, low-latency peer-to-peer audio between devices over the internet or a local network.Features:Connects multiple users together to send and receive audio among all in a group, with fine-grained control over latency, quality and overall mix. Includes optional input compression, noise gate, and EQ effects, along with a master reverb.All settings are dynamic, network statistics are clearly visible. Works as a standalone application on macOS, Windows, iOS, and GNU/Linux, and as an audio plugin (AU, VST, and AAX) on macOS and Windows. Use it on your desktop or in your DAW, or on your mobile device.Easy to setup and use, yet still provides all the details that audio nerds want to see. Audio quality can be instantly adjusted from full uncompressed PCM (16, 24, or 32 bit) or with various compressed bitrates (16-256 kbps per channel) using the low-latency Opus codec.

SonoBus

Free and open source network audio streaming

Helio is an attempt to rethink a music sequencer to create a tool that feels right. It provides a lightweight UI to help you get into the zone and focus on your ideas.

Helio

Helio Project libre music composition software

gPodder lets you manage your Podcast subscriptions, discover new content and download episodes to your devices.You can also take advantage of the service gpodder.net, which lets you sync subscriptions, playback progress and starred episodes.This is a version of gPodder with an adaptive interface meant for both touchscreen devices, like phones and tablets, and desktop and laptop computers.

gPodder-adaptive

Media aggregator and podcast client for mobile and desktop alike

JS8Call is an experiment to test the feasibility of a digital mode with the robustness of FT8, combined with a messaging and network protocol layer for weak signal communication on HF, using a keyboard messaging style interface.It is not designed for any specific purpose other than connecting amateur radio operators who are operating under weak signal conditions. JS8Call is heavily inspired by WSJT-X, Fldigi, and FSQCall and would not exist without the hard work and dedication of the many developers in the amateur radio community.

JS8Call

Software using the JS8 Digital Mode providing weak signal keyboard to keyboard messaging to Amateur Radio Operators

JuK is an audio jukebox application, supporting collections of MP3, Ogg Vorbis, and FLAC audio files. It allows you to edit the "tags" of your audio files, and manage your collection and playlists. It's main focus, in fact, is on music management.
      Features:
      
        Collection list and multiple user defined playlists
        Ability to scan directories to automatically import playlists and music files on start up
        Dynamic Search Playlists that are automatically updated as fields in the collection change
        A Tree View mode where playlists are automatically generated for sets of albums, artists and genres
        Playlist history to indicate which files have been played and when
        Inline search for filtering the list of visible items
        The ability to guess tag information based on the track's file name
        File renamer that can rename files based on the tag content
        Tag reading and editing support for many formats including ID3v1, ID3v2 and Ogg Vorbis
      
    

GSequencer provides you various tools to play, create, edit and mix your own music.
    It features a step sequencer, piano roll, automation and wave-form editor.
    

GSequencer

Forklift is a program used to download video and audio files from popular Video and Audio platforms. Using the popular CLI application youtube-dl as base, Forklift supports dozents of websites. Forklift is also optimized for smaller screens, so you can easily navigate on your mobile device.Main Features:Search function for YouTube and SoundcloudDownload original files orConvert video and audio files to other formats like mp3, ogg, etc

Forklift


      Karaoke Mugen makes hosting karaoke events easy, with a video player (mpv) and web interfaces to manage playlists, but also for your guests/public to request songs to sing!
    
      
	  It's also perfect for streamers wanting to allow their viewers to interact with them during a karaoke session.
	        
    

Karaoke Mugen

wavbreaker's purpose in life is to take a WAV file and break it up into multiple WAV files. It makes a clean break at the correct position to burn the files to an Audio CD without any dead air between the tracks.wavbreaker also supports breaking up MP2 and MP3 files without re-encoding meaning it's fast and there is no generational loss. Decoding (using mpg123) is only done for playback and waveform display.The GUI displays a waveform summary of the entire file at the top. The middle portion displays a zoomed-in view that allows you to select where to start playing and where it will make the break. The bottom portion contains a list of track breaks. You may change file names and uncheck parts that you do not want to have written out to disk when saving.There is also a command line tool wavmerge to merge WAV files together. If you download a show and don't like how it was tracked, you can merge them together with wavmerge and then break them back up with wavbreaker. The wavmerge tool will only work on files that have the same format (for example, 44.100 Hz sample rate, 16-bit sample size, etc.).

wavbreaker


   Memento is a free and open source, mpv-based video player that makes studying
Japanese easier with a built in popup dictionary, Anki integration, and more.
  
      Features:
      
        Memento uses Yomichan's dictionary format and supports all the same dictionaries
        Automates Anki card creation through AnkiConnect
        Grammar aware search matches terms in subtitles regardless of most inflections
        Supports mpv plugins, upscalers, and shaders
        Supports mpv configuration files such as input.conf for rebinding keys and mpv.conf for configuring mpv
        Supports streaming from many websites through youtube-dl
      
    

memento

An mpv-based video player for studying Japanese

Subtitld is an open source software to edit, transcribe and create subtitles. It is able to read and write various formats like SRT, SSA, TTML, SBV, DFXP, VTT, XML, SCC and SAMI.

Subtitld

Subtitld is a software to create and edit subtitles

GabTag is a Linux audio tagging tool written in GTK 4 and Adwaita, which makes it very suitable for GTK based desktop users.It allows users to select several files and modify their tags. It is also possible to let GabTag automatically find tags for an audio file using MusicBrainz.

GabTag

Giada is an open source, minimalistic and hardcore music production tool. Designed for DJs, live performers and electronic musicians.
    

Giada

C* Music Player (cmus) is a small, fast and powerful console music player for Unix-like operating systems.

C* Music Player

Open source personal teleprompter software for all video creators. Built with ease of use, control accuracy, fast performance, and cross-platform support in mind. QPrompt's convergent user interface can run on Linux, Windows, macOS, and Android.

QPrompt

Personal teleprompter software for all video creators

Drumstick Metronome is a MIDI metronome with Qt5 interface, based on the ALSA sequencer. Intended for musicians and music students, it is a tool to keep the rhythm while playing musical instruments. It uses MIDI for sound generation instead of digital audio, allowing low CPU usage, and very accurate timing thanks to the ALSA sequencer.

Drumstick Metronome

Drumstick MIDI Metronome based on the ALSA Sequencer

Drumstick MIDI Monitor logs MIDI events coming from MIDI external ports or applications via the ALSA sequencer, and from SMF (Standard MIDI files) or WRK (Cakewalk/Sonar) files. It is especially useful if you want to debug MIDI software or your MIDI setup. It features a nice graphical user interface, customizable event filters and sequencer parameters, support for MIDI and ALSA messages, and saving the recorded event list to a SMF or text file.

Drumstick MIDI Monitor

Drumstick MIDI Monitor is a MIDI monitor for Linux using ALSA sequencer

But it does not simply make your videos play at 0.01x speed. You can smoothly slow down and speed up your footage, optionally with motion blur.

How does slow motion work? slowmoVideo tries to find out where pixels move in the video (this information is called Optical Flow), and then uses this information to calculate the additional frames between the ones recorded by your camera.

slomoVideo

slowmoVideo is an OpenSource program that creates slow-motion videos from your footage.

sView is a media player to view 3D stereoscopic videos.

sView

Boram is a WebM converter that can do the following:Open-source, cross-platform, works on Windows, Mac and LinuxAV1/VP9/VP8/Opus/Vorbis/2pass/limit/CRF/CQ/raw-args modes supportIndustry-grade codec settings, considered defaultsDisplays almost any video with embedded player, thanks to mpvHardsubbing out of the box with proper shift/track selectionSimple yet powerful interface, source video centric designMultiple encodes at once in single windowFast filters result preview, no need to go through trial and errorNOTE: This is an unnofficial wrapper.

Boram


      Frescobaldi is an advanced text editor to edit LilyPond sheet music files.
      It aims to be powerful, yet lightweight and easy to use.
    
      Features:
      
        Powerful text editor with syntax highlighting and automatic completion
        Music view with advanced Point &amp; Click
        Midi player to proof-listen LilyPond-generated MIDI files
        Midi capturing to enter music
        Powerful Score Wizard to quickly setup a music score
        Snippet Manager to store and apply text snippets, templates or scripts
        Use multiple versions of LilyPond, automatically selects the correct version
        Built-in LilyPond documentation browser and built-in User Guide
        Smart layout-control functions like coloring specific objects in the PDF
        MusicXML, Midi and ABC import
        Modern user interface with configurable colors, fonts and keyboard shortcuts
        Translated into the following languages: Dutch, English, French, German, Italian, Czech, Russian, Spanish, Galician, Turkish, Polish, Brazilian Portuguese and Ukrainian.
      
      
      Frescobaldi is designed to run on all major operating systems (Linux, Mac OS X
      and MS Windows). It is named after Girolamo Frescobaldi (1583-1643), an Italian
      composer of keyboard music in the late Renaissance and early Baroque period.
    
    

Frescobaldi

Lyrics is an application that displays lyrics for songs you are listening to, it query the song through MPRIS protocol, search, downloads the lyric file and display it scrolling syncronized.

Lyrics


      Find an estimation of the fundamental frequency (f0, not the perceived pitch) 
      of an audio signal, in real-time, and compare it with the closest note in the 
      scale.
    
      
      Tune your musical instruments with advanced features, including traces of 
      frequency and volume, adjustable base tuning frequency, multiple choices of 
      tuning scale (chromatic, Werckmeister III, Kirnberger III, diatonic and 
      meantone), microtonal tuning with Scala file (.scl) support and statistics.
    
      
      Perform real-time sound analysis with views for waveform period, harmonics 
      amplitude and Discrete Fourier Transform (DFT). Change various analysis 
      parameters and tradeoff between precision and speed.
    
      
      Choose between multiple sound capture systems, including ALSA and JACK.
    
      
      Show or hide individual panels and go from a simple analog tuner view to an 
      advanced real-time analysis toolset, or anywhere in between.
    
    

FMIT

Free Musical Instrument Tuner (FMIT), a Tool for tuning musical instrument


      About: pxtone collab (ptcollab) is a sample-based music editor where you can collaborate with friends! It's based off the music engine of pxtone, a music editor developed by Daisuke "Pixel" Amaya, the creator of Cave Story and Kero Blaster.
    
      
      Features: ptcollab has many standard features you might expect from a music editor. If you've used pxtone collage before, the following will be familiar:
    
      
        Note and parameter input (pan, volume, portamento, fine-tuning, effects)
        Instrument import (ptvoice, ogg, wav, ptnoise)
        Song parameter settings (tempo, time signature)
      
      
      In addition, ptcollab supports:
    
      
        Collaborative editing: host a server and have others connect and work with you!
        Session recording: save a frame-by-frame recording of a session and play it back later!
        MIDI input: Record notes either live while the song is playing, or using keyboard controls to step through time.
      
      
      This is a unofficial flatpak package, approved by the community.
    
    

Audio y vídeo