Free Drum Synth For 909 Day

ER-99 is an open-source analog drum synth you can play in your web browser      09/09/22


To celebrate 909 day, Matthew from Extralife Instruments (maker of the Super Sixteen eurorack sequencer) has built a free, open-source analog drum synth you can play in your web browser. It’s called ER-99 and it works best on desktop devices. Here’s the details direct from Matthew…

You can program patches and sequences on the web interface and save them as presets using the menu below the sequencer. (I have also added MIDI input for sync with external sequences, but due to a browser requirement this needs HTTPS/SSL to work, so I will try to set that up in the next few days).


You can also read the complete source code on Github. It’s surprising how simple many of these sounds are to make!


The original Japanese drum machine that inspired this project is an analog sound design masterpiece, and you can read circuit analysis about its clever use of noise and bandpass filters over on Network 909. I’ve tried to use the same techniques in the digital domain but I’m sure I can tweak them to get even closer sounding.

 

Pricing and Availability:

Free.

More information:

 

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