Category Archives: Open Source

Opensource audioware

QMidiArp ~ MIDI Arpeggiator & Phrase Generator

Posted by tom2tec on

QMidiArp is a MIDI arpeggiator, phrase generator and controller LFO for ALSA and JACK. It can run multiple synchronized arpeggiators, LFOs and step sequencers. The modules are also available as LV2 plugins with Qt user interface. QMidiArp has been growing since June 2009 on top of Matthias Nagorni’s original arp idea.

Features:

  • Programmable arpeggio patterns, LFO waveforms and sequences
  • Modular setup of arpeggiators, MIDI LFOs and step sequencers
  • MIDI-controllable (MIDI-Learn)
  • Synchronization with MIDI Clock or JACK Transport possible
  • Optional triggering by keyboard or continuous play mode for all modules
  • Patterns can be stored and switched by MIDI control while running
  • JACK MIDI or ALSA MIDI backends
  • Modules available as LV2 Plugins

qmidiarp.sourceforge.net
sourceforge.net/projects/qmidiarp
github.com/emuse/qmidiarp
man.archlinux.org/man/qmidiarp.1.en
www.freshports.org/audio/qmidiarp

qmidiarp

Video:

Packages:

packages.debian.org/trixie/qmidiarp
packages.fedoraproject.org/pkgs/qmidiarp

References:

en.wikipedia.org/wiki/Synthesizer#Arpeggiators
www.linuxjournal.com/content/linux-arpeggiators-part-1
en.wikipedia.org/wiki/Advanced_Linux_Sound_Architecture
en.wikipedia.org/wiki/Low-frequency_oscillation
en.wikipedia.org/wiki/JACK_Audio_Connection_Kit

foobar2000-catbox ~ Foobar, Discord, Catbox & Images

Posted by tom2tec on

This is a helper application that uploads images to Catbox, and is meant to be invoked by the foo_discord_rich plugin. With a fork of the Discord Rich Presence Integration component, uploads cover art to catbox.moe and prints the URL.

github.com/realoksi/foobar2000-catbox

SDIF ~ Sound Description Interchange Format

Posted by tom2tec on

The Sound Description Interchange Format (SDIF) is an established standard for the interchange of sound descriptions and analysis data. This project provides libraries, SDIF (in C) and Easdif (in C++), tools, and wrappers to read and write SDIF files.

sourceforge.net/projects/sdif
cnmat.berkeley.edu/library/sdif
en.wikipedia.org/wiki/SDIF
groups.google.com/g/sdif-forum

Lattice ~ CLI Toolkit For Music Collectors

Posted by tom2tec on

A high-performance CLI toolkit for music collectors who manage their own libraries. Lattice provides a suite of tools for library visualization, integrity verification, cover art extraction, and metadata auditing — all from a single, zero-dependency script.

Why this exists

Modern music players often hide your library behind proprietary databases. Lattice is built for collectors who treat the filesystem as the source of truth. It reads tags directly via mutagen, ensuring your library is portable and player-agnostic.

Features:

ModeFlagDescription
Library Tree--libraryGenerate a formatted ASCII/Unicode tree of your entire collection.
AI Library--ai-libraryToken-efficient export designed for LLM recommendation prompts.
Genre Wings--all-wingsGenerate separate library catalogs segmented by genre.
Integrity Checks--testFLACParallel verification of FLAC/MP3/Opus/WAV integrity via FFmpeg.
Art Extraction--extractArtExtract embedded covers with format-priority ranking (FLAC > Opus).
Tag Audit--auditTagsIdentify and report files with missing or inconsistent metadata.

github.com/VirInvictus/Lattice

Bitfake2 ~ Audio Tool Handler & Manipulator

Posted by tom2tec on

Bitfake was originally created to detect fake .FLAC files through spectral analysis. It has since grown into a multipurpose CLI tool for handling music more easily and efficiently.

One common problem was that getting a track’s metadata required long ffprobe commands with messy output. Converting music with ffmpeg was also repetitive. The command itself is easy to remember, but writing scripts to convert entire directories felt inefficient and slow. This project now performs metadata and conversion tasks directly through linked libraries (TagLib/libsndfile/libav*).

Features:

  • Get metadata
  • Get ReplayGain info (useful for music players)
  • Spectral analysis on 44.1 kHz .FLAC files (higher sample rates may be misrepresented, so be careful)
  • Lossy diagnosis (banding score)
  • File Conversion + VBR Support (Works for outputs like .wav, .flac, .ogg, .mp3, .aac, .opus)
  • Tagging metadata (Works for single files, but not directories yet)
  • Calculating ReplayGain and applying it to files (Works for track replay gain iterating through directories, album replay gain is a bit funky?)
  • Directory Conversion (works for all previously mentioned formats!)
  • CoverArt+ (Brings along cover art among all conversions!)
  • Organizing Files by album! (Give a dir of random music, and bitfake will organize it – ty to uncognic)
  • Directory Tagging (YAY!)
  • Album folder renaming from tags (Artist – Album (Year))
  • Spectrogram generation (in .png)
  • Version info (WOW! BEST YET!)
  • MusicBrainz Syncing data.

github.com/Ray17x/bitfake2
gpo.zugaina.org/app-misc/bitfake2
repology.org/maintainer/ray%40atl.tools/feed-for-repo/gentoo_ovl_guru

RxFFmpeg ~ Android Development Framewok

Posted by tom2tec on

RxFFmpeg is a high-performance multimedia processing framework built on top of FFmpeg and optimized specifically for Android environments, enabling developers to perform complex audio and video editing operations programmatically. It integrates widely used encoding libraries such as x264, mp3lame, and fdk-aac, allowing it to support a broad range of media formats and transformations. The framework provides a wrapper around FFmpeg commands, making it easier to execute advanced media operations without directly handling low-level command syntax. It supports both synchronous and asynchronous execution, enabling developers to manage long-running media tasks efficiently within mobile applications. The system also includes features like hardware acceleration through MediaCodec, significantly improving performance on supported devices. Its design focuses on flexibility, allowing users to perform tasks such as transcoding, clipping, filtering, and compositing media with minimal overhead.

Features:

  • Callback system for tracking execution progress
  • Execution of FFmpeg commands through a simplified interface
  • Support for synchronous and asynchronous media processing
  • Hardware acceleration using MediaCodec
  • Wide range of video and audio editing capabilities
  • Integration with multiple encoding libraries

github-com.translate.goog/microshow/RxFFmpeg
sourceforge.net/projects/rxffmpeg.mirror

Winamp ASIO ~ ASIO & SRD Resampler

Posted by tom2tec on

Further development of the ASIO output module by otachan (2006) for the Winamp player, including:

  • problem with setting the sample rate fixed
  • gapless mode completed
  • added individual channel assignment
  • added upsampling to a non-fractional multiple of base-frequency
  • added high quality resampler: sample rate doubler for best audio playback

winamp-asio-plugin.sourceforge.io
sourceforge.net/projects/winamp-asio-plugin
forums.winamp.com/forum/winamp/winamp-technical-support/4647216-asio-output-plugin

discogs-cli ~ Discogs Terminal Access

Posted by tom2tec on

discogs-cli bring the Discogs.com database to your terminal. Perform the following actions from your terminal:

  • Search artists, releases, labels
  • View artist information and their releases
  • View label details and its associated releases
  • View a release in detail

github.com/jesseward/discogs-cli

Ear Tag ~ Edit Audio File Tags

Posted by tom2tec on

Ear Tag is a simple audio file tag editor. It is primarily geared towards making quick edits or bulk-editing tracks in albums/EPs. Unlike other tagging programs, Ear Tag does not require the user to set up a music library folder. It can:

  • Edit tags of MP3, WAV, M4A, FLAC, OGG and WMA files
  • Modify metadata of multiple files at once
  • Rename files using information from present tags
  • Identify files using AcoustID

Network access is only used for the “Identify selected files” option.

apps.gnome.org/EarTag
gitlab.gnome.org/World/eartag

foo_timesleep ~ Foobar2000 Sleep Timer

Posted by tom2tec on

foo_timesleep is a sleep timer component for foobar2000. It provides both:

  • Sleep timer commands under Playback > Sleep Timer
  • An always-visible Sleep Timer toolbar item for Columns UI (Toolbars)

Features:

  • Start a sleep timer in minutes (preset values)
  • Stop playback when the timer reaches zero
  • Show remaining time
  • Cancel an active timer

github.com/shirafukayayoi/foo_timesleep

Open Audio Protocol ~ Global Music Database

Posted by tom2tec on

The Open Audio Protocol exists to bring the world’s music onchain. It’s a community-run, transparent, and open-source repository known as the Global Music Database.

Originally pioneered in the 2020 Audius Whitepaper, the Open Audio Protocol marks the next chapter for a music ecosystem powered by $AUDIO. The protocol combines blockchain, crypto-economics, and music industry technology standards to deliver new tools for distribution, access, and direct-to-fan freedom.

  • Developers: you’ve found a backend for your music app or DSP
  • Artists: you’ve found storage and distribution for your works
  • Infra Providers: you’ve found opportunity to earn staking rewards by securing the catalog

openaudio.org

OpenVoiceOS ~ Voice AI Platform

Posted by tom2tec on

OpenVoiceOS is a community-driven, open-source voice AI platform for creating custom voice-controlled ​interfaces across devices with NLP, a customizable UI, and a focus on privacy and security.

www.openvoiceos.org
github.com/OpenVoiceOS
github.com/OpenVoiceOS/ovos-installer