SPPAS is a scientific computer software package written and maintained by Brigitte Bigi of the Laboratoire Parole et Langage, in Aix-en-Provence, France. Available for free, with open source code, there is simply no other package for linguists to simple use in the automatic annotations of speech, the analyses of any kind of annotated data and the conversion of annotated files.
SPPAS is able to produce automatically speech annotations from a recorded speech sound and its orthographic transcription. SPPAS is helpful for the analysis of any annotated data: estimate statistical distributions, make requests, manage files, visualize annotations. SPPAS offers a file converter from & to a wide range of formats: xra, TextGrid, eaf, trs …
Category Archives: Freeware
mineradio ~ Immersive Music Player
Mineradio is a Windows desktop immersive music player that combines search and play, lyrics stage, particle vision, 3D playlist rack, and full desktop mode into a private music space that is closer to a live experience.
github.com/XxHuberrr/Mineradio
sourceforge.net/projects/mineradio.mirror
SonicTree ~ Linux File Player
SonicTree is a Linux music player for local music playback and filesystem-based navigation. It allows you to browse and play music directly from your existing folder structure without requiring a separate music library database.
Features:
- Designed around local folder-based music playback for clean and distraction-free listening experience
- Playback architecture powered by GStreamer for stable playback pipeline and decoder handling
- Audio metadata support powered by TagLib
- Low CPU usage during playback. Small and stable memory footprint with minimal background overhead
- Gapless Playback for improved listening experience for continuous albums, live recordings, and gapless music.
- Smooth and responsive playback experience with stable long-session playback behavior
- Repeat Off, Repeat Track, and Repeat Playlist modes
- Keyboard shortcuts for playback, seeking, and volume control
- Persistent application settings

sourceforge.net/projects/sonictree
References:
itsfoss.com/sonictree-music-player/#get-sonictree
en.wikipedia.org/wiki/Gapless_playback
gstreamer.freedesktop.org
taglib.org
Sunamu ~ Stylish Onscreen Display
optiscan ~ Advanced CD Reader & Writer
A Windows GUI application for high-quality audio CD ripping, writing, and advanced disc diagnostics, written in C++.
OptiScan reads and writes audio CDs at the raw sector level using SCSI/MMC commands and provides multiple quality scanning modes to assess disc health before, during, or after extraction.
JellyBox ~ Jellyfin Music Player
This is unofficial audio client for app. Currently it supports macOS, iOS and android via APK file. I’m also working on adding Linux(deb) support and windows.

github.com/avdept/JellyBoxPlayer
sourceforge.net/projects/jellybox.mirror
Resources:
Shortwave ~ Gnome Radio Player
foobar2000 ~ foo_ui_webview2
A modern UI component for foobar2000 built on WebView2 (C++ DLL). It turns the entire foobar2000 window into a WebView2 canvas, letting you build the interface with modern web technologies while keeping native Windows 11 visual effects (Mica/Acrylic).
Features:
- Full WebView2 UI — the entire client area is rendered by WebView2
- Native Windows 11 effects — Mica / Acrylic / Tabbed backgrounds
- Extended title bar into the client area — custom title bar content, Snap Layout support
- Bidirectional C++ / JS bridge (BridgeCore)
- 200+ APIs across 20+ namespaces
- Plugin extension system (PluginRegistry)
- Web Components library (fb-* elements)
- SMP compatibility layer
- MCP Server — AI agent integration via CDP
- DUI / CUI panel support
nereafantasia.github.io/foo_ui_webview2
github.com/NereaFantasia/foo_ui_webview2
References:
en.wikipedia.org/wiki/WebView
learn.microsoft.com/en-us/microsoft-edge/webview2
Resources:
Gallery:

FPrism WUI ~ hydrogenaudio.org/index.php/topic,129771.0
tonepose ~ Pitch Shift Mac Audio
Pitch-shift audio from Spotify, Apple Music, browsers, and more, from the menu bar. No BlackHole or virtual cables. Free and open-source.
OmniPans ~ Panning & Volume Control
foobar2000 ~ Duration & Subsong Manager
A foobar2000 component that lets you override the length of any track, hide individual subsongs from the Media Library, and read playback time at millisecond precision.
Language: English | 中文
Features:
Duration Manager — custom track length
- Set a custom length for any track via the context menu “Set custom duration”.
- Manage all overrides in Preferences → Tools → Duration & Subsong Manager → Duration Manager (search, edit, delete).
- Overrides are matched by file content hash + subsong index, so they survive file moves/renames.
- During playback the track is automatically truncated to the custom length (jumps to the next track when reached).
Subsong Manager — hide subsongs
- For multi-subsong files, choose exactly which subsongs are visible in the autoplaylists.
- Configure include/exclude ranges (e.g.
1-3,5,7) or checkbox in Preferences → Tools → Duration & Subsong Manager → Subsong Manager.- Note: this filters the Media Library query at runtime, so changes take effect after a restart.
High-Precision Timer (UI element)
- An auxiliary UI element for the Duration Manager that shows playback position and track length in millisecond precision:
[HH:]MM:SS.mmm.- Add it via the layout editor like any other UI element (“High-Precision Timer”).
Compatibility
- foobar2000 v2.0 or newer, Windows, 32-bit and 64-bit.
- Built against the foobar2000 SDK (2025-03-07).
SonEQ ~ Analog Style Equalizer Plugin
SonEQ is the ultimate analog-style equalizer for both mixing and mastering sessions. Inspired by the warmth and character of classic analog EQ units, SonEQ provides a remarkably tasteful character to the audio source.
Provides Vintage Analog Charm.
Has A User-Friendly Interface.
Offers Versatile Applications.
It’s Completely Free.Sonimus SonEQ seamlessly integrates with all major DAWs, available in VST, AU, and AAX formats.

sonimus.com/products/soneq
www.youtube.com/watch?v=_YNMrTWl0Bg
sonimus.com/music-artists-program



