Category Archives: SNDH
an old player revisited
Ten years after my first sc68 web port I thought it might be time to update the code base to the latest sc68 dev version. This new version supposedly has improved SNDH playback capabilities and I used the occasion to play with WEBGL and also add a visualization of the emulation’s internal voice streams. A live demo can be found here: http://www.wothke.ch/webSC68
PS: I updated PlayMOD to now also use this version.
vu meters?
Just a little experiment for how to synchronize visualization of additional data streams with the the playback of WebAudio music: The music samples are generated on the fly using a ScriptProcessorNode emulating some legacy AtariST. In addition to the stereo output the respective ScriptProcessorNode also generates three streams containing “playback volume” for the AtariST’s internal sound-chip voices:
just for fun a more psychedelic WebGL based rendering of the same data (the WebGL here combines an orbit trap fractal with an inverse distortion, and the “music volume” is used to parameterize the rendering):
after all those years..
To complete the set of chip-music emulators, here my WebAudio version of SC68 – an AtariST music emulator (that plays files like *.sc68 or *.sndh).
Even tough I had done some programming on the MegaST 4 back in the 90ies, I have to admit that at the time I had not realized that the machine had anything resembling a sound chip. Those were the days of 68k assembler, DSP machine code and GFA-Basic.. and we were just doing a Paintbox software for the “CHILI” frame-grabber and real-time video-effects extension card… 🙂
But it seems the ST not only did have a MIDI interface but also a built-in sound chip…
Thanks to Photon Storm for sponsoring this little project.
update: The respective page has meanwhile been updated and the used link therefore no longer corresponds to the original screenshot (you’ll need a browser with WEBGL support to use it).
happy programming logbook 