BossDR110

An HTML5 & Javascript emulation of Roland's final analog drum machine

Web Development Games & Emulation

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2Distinct people

4Mentions

0Explicit recommenders

16GitHub stars

REPOSITORY AT A GLANCE

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What it is

An HTML5 & Javascript emulation of Roland's final analog drum machine

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Where it is used

No documented product use has been verified yet.

What people are saying

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This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.

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Mentions over time

HN mentions by year4 dated mentions

Observed mentions: 2016-09-12 14:33:14 UTC to 2021-07-28 21:15:51 UTC.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

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Period	Start (UTC)	End (exclusive, UTC)	Mentions	Comments
2016	2016-01-01 00:00:00 UTC	2017-01-01 00:00:00 UTC	2	2
2017	2017-01-01 00:00:00 UTC	2018-01-01 00:00:00 UTC	0	0
2018	2018-01-01 00:00:00 UTC	2019-01-01 00:00:00 UTC	0	0
2019	2019-01-01 00:00:00 UTC	2020-01-01 00:00:00 UTC	0	0
2020	2020-01-01 00:00:00 UTC	2021-01-01 00:00:00 UTC	1	1
2021	2021-01-01 00:00:00 UTC	2022-01-01 00:00:00 UTC	1	1

What Hacker News says

4 sources

leviathant·Jul 28, 2021

Not the author, but here's something I put together about 8 years ago using the web audio API to synthesize analog drum sounds, specifically modeled from the Boss DR-110: https://www.bitrotten.com/dr110/webaudio/ (See also https://github.com/leviathant/BossDR110/tree/feature/synthes...)

In Drum Synthesis in JavaScript

leviathant·Jun 14, 2020

'first JS-based grid sequencer' We're all inspired by other things, and being first doesn't really count for much if you don't promote yourself. Even then, it's a roll of the dice as to if you stand out in the crowd. If you're just going by "JS-based grid sequencer' I created one in February 2011 as part of an HTML-based emulation of a Boss DR-110 drum machine (Which I later updated to use the Web Audio API to synthesize the drum voices) https://github.com/leviathant/BossDR110 It's skeumorphic (I was challenging the popular notion "You can do everything in HTML that you can do in Flash" at the time - it wasn't true then, but we're much closer now), I never finished out 'song mode', but it is a JS-based grid sequencer that predates your timeline. As best as I can tell, it was the first click-and-drag Javascript knob done Rebirth/Reason sty

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le - it was a little clunky, but I sure as hell couldn't find any remotely similar code to base it off of - but I don't get bent out of shape whenever I see other people making Javascript knobs.

In Music Grid

heuermh·Sep 13, 2016

These appear to be the synthesized versions: https://github.com/leviathant/BossDR110/blob/feature/synthes... To the parent, what did you use as the reference for the synthesis patches and parameters? I wouldn't mind trying something similar in ChucK.

In Show HN: Drum machine in 100 lines of HTML/JS

leviathant·Sep 12, 2016

I can't give you 'realistic' drum sounds, but I was working on an approximate recreation of a Roland analog drum machine using only Javascript. I got the sound engine down more or less, but kind of fell off the rails when I moved away from my earlier, crappier sequencer and started using a framework. The sounds should work across browsers when you're manually playing (use the bottom row of your keyboard) but when sequenced playback happens, things get weird. Chrome more accurately reproduces the sounds as I'm imagining them. Grab the whole thing at https://github.com/leviathant/BossDR110/tree/feature/synthes... or just play around with it yourself at http://bitrotten.com/dr110/webaudio/

In Show HN: Drum machine in 100 lines of HTML/JS