The Frugel-Horns (the name is a cross between flugelhorn & frugal) is a series of 3 sizes of tapped horns based on redesign of the original Frugel-Horn with goals of simpler, smoother, more versatile… all have been met, and driver versatility has proven to exceed hopes & expectation.
I had one of these trivial problems. Yesterday I wanted to create a new stroboscope disc for my Metzner rebuild (now with 50HZ 🙂 … After fiddling around with some graphic tools I decided to build a small Web-App (quick and dirty) to support me on this task. It might be of interest? You can use it offline or via the web site…
– Supports 33⅓, 45, 78 RPM + custom speeds
– 50Hz, 60Hz, 300Hz lamp frequencies + custom frequency
– Adjustable disk size, bar length, smoothing
– Custom colors and logo upload
– Drag/rotate/resize logo interactively
– Export: SVG (print), STL/3MF (3D print), FreeCAD macro
– Light/dark theme, EN/DE bilingual
– Offline-capable (standalone download)
strobo.apfelbeck.at
www.diyaudio.com/community/threads/stroboscope-disc-tool-webtool-to-automatically-create-them
MIDITONES: Convert a MIDI file into a simple bytestream of notes.
MIDITONES compiles a MIDI music file into a much simplified compact time-ordered stream of commands, so that the music can easily be played on a small microcontroller-based synthesizer that has only simple tone generators. This is on github at www.github.com/LenShustek/miditones.
Volume ("velocity") and instrument information in the MIDI file can either be discarded or kept. All the tracks are processed and merged into a single time-ordered stream of "note on", "note off", "change instrument" and "delay" commands.
MIDITONES was written for the "Playtune" series of Arduino and Teensy microcontroller software synthesizers.
Sound Open Firmware (SOF) is an open source audio Digital Signal Processing (DSP) firmware infrastructure and SDK. SOF provides infrastructure, real-time control pieces, and audio drivers as a community project. The project is governed by the Sound Open Firmware Technical Steering Committee (TSC) that includes prominent and active developers from the community. SOF is developed in public and hosted on the GitHub platform.
The firmware and SDK are intended for developers who are interested in audio or signal processing on modern DSPs. SOF provides a framework where audio developers can create, test, and tune the following:
sofproject.org
thesofproject.github.io
github.com/thesofproject/sof
Youtube: Sound Open Firmware – Liam Girdwood, Intel
You can now use this WEB UI to generate frequency response graphs
sjplot.com/online
www.audiosciencereview.com/…introducing-the-phono-cartridge-measurement-library
deej is an open-source hardware volume mixer for Windows and Linux PCs. It lets you use real-life sliders (like a DJ!) to seamlessly control the volumes of different apps (such as your music player, the game you’re playing and your voice chat session) without having to stop what you’re doing.
The Roon Command Line project provides Bash and Python scripts to enable command line control of the Roon audio system over a local network.
Note: No modifications are made to the Roon Core. The RoonCommandLine package resides entirely on other systems within your local area network.
rooncommand.dev
github.com/doctorfree/RoonCommandLine
Q17 is an amplifier based on the QUAD 405 current dumping principle.
Please refer to Q17 Project description from Tiberiu Vicol’s original design.
Q17-Turbo project (200W @ 8 Ohms):
The natural evolution of the Q17-Mini, this time with two pairs of power transistors, better thermal management with the same technical characteristics and the same sound signature.
github.com/stefaweb/Q17-Amplifier
The realtime Raspberry PI powered digital guitar effects pedal.
Key Features:github.com/Jscott44/RTEP5-the-raspberry-jam
- Realtime audio loop
- Cutsomisable effects
- User profiles
- Low cost
- Simple effect creation
- Specialized audio electronics design
Phoniebox is a contactless jukebox for the Raspberry Pi, playing audio files, playlists, podcasts, web streams and Spotify triggered by RFID cards. All plug and play via USB, no soldering iron needed. It also features GPIO buttons control support.
github.com/MiczFlor/RPi-Jukebox-RFID
Listen to great sound from a quality crafted boombox using voice input which maintains your privacy.
smartboomboxes.com
www.youtube.com/watch?v=WRiqg0b-EPI
The Audio File 