These are Equalizer (EQ) presets for use with the foobar2000 desktop media player for Windows. They appear to be old Winamp presets, I’m sure they’d work there as well.
Volume² is an freeware app which is an advanced Windows volume control, a complete replacement for the default Volume Control on Windows. This application lets you easily change the sound volume just by rotating the mouse wheel or by using keyboard hot keys or just mouse move on screen border. The app comes with customization themes and interface and also other options like setting hotkey for changing volume.
Multitone Analyzer is an app designed to explore audio electronics performance by producing quick measurements using a simple loop-back configuration. MA produces a specific set of test tones that are sent to a digital-to-analog converter (DAC) that are then passed through one or more analog components and then received by MA and analyzed. MA both, plays the signals and records them for analysis. DAC and ADC are required for this to work.
Measurements that MA can produce: TD+N, IMD, N+D, delay, clock drift, frequency response, etc.
Audio support for WASAPI, ASIO, and Direct Audio devices with sampling rates of up to 384kHz/32 bits
Test signals: arbitrarily large multi-tone signal, simple sine waves, two-tone IMD test signals, 3-tone IMD test signals, square wave, triangle wave
FFT sizes of up to 1M
For distortion measurements a range of frequencies to measure can be selected
BallroomDJ 4 is a complete rewrite of BallroomDJ. BallroomDJ 4 is a ballroom music player (but can be used for other purposes). It is designed with the goal of being able to play music the entire evening without intervention.
Features:
Uses your music collection from your hard drive
No limitations on the number of audio files
Manual, sequenced and automatic playlists.
Flexible: adjust the music queue or the playlist queue while playing
Flexible: almost everything can be configured
Edit song data. Optionally write the audio file tags
ReSampler is a high-performance command-line audio sample rate conversion tool which can convert audio file formats with a variety of different bit-depths and audio channel configurations. ReSampler compiles and runs on Windows, Linux and macOS
JJazzLab-X is a Midi-based framework dedicated to backing tracks generation -some people talk about “play-along songs” or “auto-accompaniment applications”. You type in chord symbols, select a rhythm (style), then the application generates a complete backing track with drums, bass, guitar, piano, strings, etc.
The objective is to develop a jam buddy able to quickly generate intelligent and interesting backing tracks: realistic and non-boring backing tracks which you can easily adjust to a specific song.
Podfetch is a self-hosted cross-platform podcast manager. It is a web app that lets you download podcasts and listen to them online. It is written in Rust and uses React for the frontend. It also contains a GPodder integration so you can continue using your current podcast app.