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…
Main Features:
– 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)
HydrogenAudio presents the definitive resource for testing sample rate conversion applications. Each Sample Rate Converter (SRC) is examined against multiple revealing tests, generating an overall quality ranking. A quality ranking needs careful consideration, these tests are formulated to test modern SRC routines, as such they are very sensitive way in excess of the 24 bit (-144dB) audible range. A SRC scoring 60% could very well have inaudible defects if converted to 24 bit, so why the need for high precision testing? An example might be in the studio, audio is processed in many ways, having a clean SRC converter allows further processing steps, including amplification, without fear of audible distortion. The best SRC have distortion down below -300 dBFS, giving plenty of head room for future processing and mixing of different sources.
This is a web version of the Roland TR-909 drum-machine with painfully hand-made generated html, svg & css and a proper web-audio-api sound engine. It emulates the exact same cumbersome user experience of the original machine.
openDAW is a next-generation web-based Digital Audio Workstation designed to democratize music production by making professional creation tools accessible to everyone. Built entirely in TypeScript with Web Audio API, it runs in your browser with no required login and no vendor lock-in. Open-source under AGPL-3 and designed with education at its core.
The most fundamental sound is the sine wave, characterized by a single frequency without any harmonics. A sine wave can be easily recognized by ear, as it sounds very pure, almost like a whistle. As sine waves are made up by a single frequency, they are best suited to test audio systems at a given frequency.
cplayer is a small, statically served, client-side album-based audio player for modern web browsers. You simply drop a build into a directory on your web server, create a manifest.json file that describes the album metadata and track URIs and you’re done.
The Audio File 