FFmpeg ~ Open Source Audio Video Toolset


A complete, cross-platform solution to record, convert and stream audio and video. FFmpeg is the leading multimedia framework, able to decode, encode, transcode, mux, demux, stream, filter and play pretty much anything that humans and machines have created. It supports the most obscure ancient formats up to the cutting edge. No matter if they were designed by some standards committee, the community or a corporation. It is also highly portable: FFmpeg compiles, runs, and passes our testing infrastructure FATE across Linux, Mac OS X, Microsoft Windows, the BSDs, Solaris, etc. under a wide variety of build environments, machine architectures, and configurations.

ffmpeg.org

Frontends:

Resources:

GNUsound ~ Opensource Unix Audio Editor


GNUsound is a multitrack sound editor for GNOME 1 and 2.

www.gnu.org/software/gnusound

GNUMP3d ~ GNU Streaming Media Server


GNUMP3d is a streaming server for MP3s, OGG vorbis files, movies and other media formats.

It is designed to be:

  • Small, stable, portable, self-contained, and secure.
  • Simple to installconfigure, and use.
  • Portable across different varieties of Unix, the GNU Operating System, and Microsoft Windows platforms.

www.gnu.org/software/gnump3d/

Drumstick ~ MIDI Monitor


Drumstick MIDI Monitor is a MIDI monitor for Linux using ALSA sequencer and Qt5 user interface.

Features:
  • Easy to use Qt5 graphic user interface
  • Based on ALSA sequencer. Provides one input port to be connected to other programs and devices using the usual external tools (aconnect, QJackCtl…)
  • Customizable event filters and sequencer parameters
  • Supports all MIDI messages, including System Exclusive, and some ALSA messages
  • MIDI Playback of the recorded session or loaded MIDI file
  • Saves to a text file or standard MIDI file the recorded event list

sourceforge.net/projects/kmidimon

mda VST ~ Cross-platform Effect Plugins


These free effect plug-ins work with Cubase and other VST compatible applications

The plug-ins:

Bandisto – Multi-band distortion
BeatBox – Drum replacer
Combo – Amp & speaker simulator
De-ess – High frequency dynamics processor
Degrade – Sample quality reduction
Delay – Simple stereo delay with feedback tone control
Detune – Simple up/down pitch shifting thickener
Dither – Range of dither types including noise shaping
DubDelay – Delay with feedback saturation and time/pitch modulation
Dynamics – Compressor / Limiter / Gate
Envelope – Envelope follower / VCA
Image – Stereo image adjustment and M-S matrix
Leslie – Rotary speaker simulator
Limiter – Opto-electronic style limiter
Loudness – Equal loudness contours for bass EQ and mix correction
Multiband – Multi-band compressor with M-S processing modes
Overdrive – Soft distortion
Re-Psycho! – Drum loop pitch changer
RezFilter – Resonant filter with LFO and envelope follower
Round Panner – 3D panner
Shepard – Continuously rising/falling tone generator
Splitter – Frequency / level crossover for setting up dynamic processing
Stereo Simulator – Haas delay and comb filtering
Sub-Bass Synthesizer – Several low frequency enhancement methods
Talkbox – High resolution vocoder
TestTone – Signal generator with pink and white noise, impulses and sweeps
Thru-Zero Flanger – Classic tape-flanging simulation
Tracker – Pitch tracking oscillator, or pitch tracking EQ
Vocoder – Switchable 8 or 16 band vocoder
VocInput – Pitch tracking oscillator for generating vocoder carrier input

mda.smartelectronix.com
sourceforge.net/projects/mda-vst

Tyrell N6 ~ Cross-platform Software Synthesizer


TyrellN6 is a compact, sporty synth. Based on concepts and ideas for a hardware synth: a few modules, novel features, analogue sound and low-cost. TyrellN6 is the software version manifestation of these ideas.

  • Virtual analogue with classic architecture plus extras
  • 2 oscillators, noise, ring modulator
  • 2 LFOs with 8 waveforms, host-syncable
  • Audio source mixer with authentic overdrive and filter feedback
  • Twin filter related to Diva (early model)
  • Analogue-type ADSR envelopes, loopable or LFO-triggered
  • Skinnable UI
  • Over 580 factory presets

https://u-he.com/products/tyrelln6/

Qsampler ~ LinuxSampler Qt GUI


Qsampler is a linuxsampler GUI front-end application written in C++ around the Qt4 toolkit using Qt Designer. For the moment it just wraps the client interface of LinuxSampler Control Protocol (LSCP)

https://qsampler.sourceforge.io/

FOMUS ~ Music Notation Automation


FOMUS is a open source software application by David Psenicka that automates many musical notation tasks for composers and musicians, facilitating the process of creating professionally notated scores by allowing the user to separate attributes such as times, durations and pitches from the representation of them in conventional music notation. It is especially useful for composers who work with algorithms and computer music software languages / environments such as CM/Grace, Pure Data and Lisp. It can also be used to import data from MIDI files into a graphical notation editor or creating scores from scratch using text files.

fomus.sourceforge.net

sourceforge.net/projects/fomus

unflac ~ Command Line FLAC Splitter


A command line tool for fast frame accurate audio image + cue sheet splitting.

This project is started mostly out of frustration over supporting split2flac with all the external dependencies and their quirks.

git.sr.ht/~ft/unflac

split2flac ~ POSIX FLAC Splitter


split2flac splits one big APE/FLAC/TTA/WV/WAV audio image (or a collection of such files, recursively) with CUE sheet into FLAC/M4A/MP3/OGG_VORBIS/OPUS/WAV tracks with tagging, renaming, charset conversion of cue sheet, album cover images. It also uses configuration file, so no need to pass a lot of arguments every time, only an input file. Should work in any POSIX-compliant shell.

https://github.com/ftrvxmtrx/split2flac

LSP ~ Linux Studio Plugins Project


LSP (Linux Studio Plugins) is a collection of open-source plugins currently compatible with LADSPA, LV2 and LinuxVST formats. The basic idea is to fill the lack of good and useful plugins under the GNU/Linux platform.

Features:

  • Plugins available in LV2 format, native X11 UI is provided
  • Plugins available in LADSPA format
  • Plugins available in LinuxVST format, native X11 UI is provided
  • Standalone plugins available as JACK applications, X11 UI is provided
  • Highly-optimized source code for x86 and x86_64 architecture with support of SSE, SSE2, SSE3 and AVX instruction set
  • Highly-optimized source code for ARMv7 architecture with support of NEON instruction set
  • Source code and binaries are available for free download

lsp-plug.in
sourceforge.net/projects/lsp-plugins

KRadio ~ KDE AM/FM/Internet Radio


KRadio is an Internet and/or AM/FM radio application for KDE Frameworks 5. It has support for V4L and V4L2 radio devices, internet radio, RDS, lirc remote control, MP3 and Ogg/Vorbis recording, TimeShift playing, alarms and much more. Try it out!

Features:
  • Linux Radio Devices with V4L1 / V4L2 support (incl. PVR cards and RDS)
  • Internet Radio
  • dbus interface
  • Timeshift, Recording
  • LIRC support
  • MPRIS support

kradio.sourceforge.net/

sourceforge.net/projects/kradio/