video upload by Fundamental Frequency
You can find additional demos in previous posts here.
"The LMN-3 is an open-source synth/sampler/sequencer/DAW-in-a-box. You can find the collection of all LMN-3 repositories here: https://github.com/FundamentalFrequency
Build guide can be found here: https://github.com/FundamentalFrequen...
00:00 - Introduction
00:31 - General Settings
00:55 - Tracks Screen Overview
01:42 - Plugins Screen Overview
02:06 - Drum Sampler Overview
02:28 - Step Sequencer Overview
03:19 - Drum Programming
04:11 - Sampler Overview
05:10 - Bass Sequencing
05:39 - Clip Cut/Paste
06:02 - 4OSC Synth Overview
07:24 - Adding Effects
08:07 - Recording
08:51 - Editing, Loop Controls, Saving, and Track Addition/Deletion
09:37 - Mixer Overview
10:19 - Pitch Bend
10:42 - Modifiers
11:20 - Project Rendering
11:31 - Implementation Overview
via this auction

An overview of the project can be seen here: [video above]
This was built by myself using a Raspberry Pi 4, 4GB w/64GB uSD card. It features the Tracktion Engine for its main software. All keys, encoders, etc. work and are housed in a custom 3D printed and laser cut acrylic case. Made some custom laser printed labels of which the "stop" key is rubbing off. I also compiled a custom version of the software where I added a Shutdown option to the settings menu which issues a proper shutdown command to the Raspberry Pi (avoids data loss and uSD card corruption). Also created custom Python scrips to save and load sessions. Also added on-screen keyboard to use with naming and loading the sessions. Works great with the touchscreen.
Some things this can do:
Tracks Screen
Plugins Screen
Drum Sampler
Step Sequencer
Drum Programming
Sampler
Bass Sequencing
Clip Cut/Paste
4OSC Synth
Adding Effects
Recording
Editing, Loop Controls, Saving, and Track Addition/Deletion
Mixer Overview
Pitch Bend
Modifiers
List of hardware included:
Raspberry Pi 4, 4GB
64 GB microSD card
45 keyboard keys (serving has synth/MIDI keyboard), controlled via a Teensy microcontroller
Hyperpixel 4 touchscreen (4")
Power supply
This thing works great and is really cool to create music with. Comes loaded with a bunch of samples and instruments."

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