LMN-3 Portable Synthesizer, Sequencer, Sampler & Controller

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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

"This is a DIY project based off of FundamentalFrequency. It is similar to the Teenage Engineering OP-1.

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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LMN-3 improvisation

video upload by Floyd Steinberg

"Here's one of my demo tracks from my big #LMN3 #raspberrypi #synthesizer video. This is the synth plugin (4OSC) which comes preinstalled with the LMN-3 prerelease. To learn more, please watch my LMN-3 video [posted here] or visit the project's homepage https://github.com/FundamentalFrequency

Get 7% off on DistroKid with this link http://distrokid.com/vip/floyd
PayPal.me https://www.paypal.me/alexselck"

Building and Playing the LMN-3 DIY Open Source Synthesiser

video upload by

"The #LMN3 #raspberrypi #synthesizer made quite the splash in the media some weeks ago. In this video, I build it and explore the DAW a bit (there will be another video focussing on that). Is this really an "OP-1 - killer" that some on social media make it out to be? Table of contents:

00:00 sponsored by @PCBWay
00:12 introduction
00:57 getting the PCB and the enclosure
04:04 other hardware needed (and current prices)
05:24 soldering the diodes
06:19 ... the Teensy 4.1
07:39 ... the microswitches
08:25 ... the joystick and the encoders
08:43 assembling screen and case and Pyssla ;-)
11:18 keycap stickers & Barry
11:48 compiling and installing the Teensy firmware
13:18 installing Debian Bullseye on the Raspberry PI
14:00 installing the LMN-3 DAW
14:19 adjusting touch screen settings
15:17 important considerations
16:00 booting the synth (real time)
17:23 uploading samples, creating a .yaml file for drum sets
18:00 UI overview
18:30 adding a plugin (4OSC virtual analog synth)
18:53 short 4OSC plugin overview
20:18 adding effect plugins
20:56 step sequencer
22:25 adding a drum track
23:37 adding a (chromatic) sampler track
24:16 ... improvising on a track ...
24:46 conclusion / my personal opinion on this device and current internet discussions / whom is this for? / call for developers
26:28 demo track 2 (muting and unmuting while playing)
27:53 demo track 3 (Vangelis impression using an external reverb pedal)
29:38 outro, summary

Links & Resources
The LMN-3 project homepage https://github.com/FundamentalFrequency
PCB Way https://www.pcbway.com/ (thanks again for sponsoring this video)

Get 7% off on DistroKid with this link http://distrokid.com/vip/floyd
PayPal.me https://www.paypal.me/alexselck"

Additional LMN-3 posts.

Shimmer-like reverb on a Yamaha QY70 (following @Avrilcadabra 's recipe), plus update on LMN-3

video upload by Floyd Steinberg

"A few days ago, @Avrilcadabra posted a rather ingenious video showing how to "fake" a shimmer reverb on the Dirtywave M8. You should watch it, it's short and to-the-point and it really deserves more views: [below]
In this video, I'm testing if the same ideas work on a Yamaha QY70 as well.
No table of contents today, but there's a demo at 4:36, and a short update on the LMN3 video at 6:00"

Get 7% off on DistroKid with this link http://distrokid.com/vip/floyd
PayPal.me https://www.paypal.me/alexselck

How to make lush Shimmer reverb on M8

video upload by Avrilcadabra

"If there's a will there's a way.

#m8tracker #dirtywave

Sorry this video is fast, I tried to make it slow, but not slow enough, I zoom around the M8 so quick from using it so much. , so I'll explain here.

If you have the current firmware you can quickly render any bit of a song.
Hold shift and option to select what you want to render then press Edit 3 times, select OK to render, M8 will auto load a sampler instrument and add the render (how neat)

My pattern was 4 phrases long, so I make a new chain on the song screen, add new phrase, in that phrase add a c-4 note, it will be the new rendered sample.

then I add three empty FE phrases to the chain, to pad it out, so the sample plays uninterrupted for 4 phrases long.

Next we apply the time stretch method to our instrument, set LENGTH to 00, PLAY to FWD LOOP, set LFO to LOOPST, set OSC to Ramp UP, TRG to RETRIG,and finally FRQ to whatever length your sample is, mine was 4 phrases so I select 40 (help text says this is 4 phrases), if your pattern you rendered was 1 phrase long, then set FRQ to 10 for example,

Tweak LENGTH till it sounds less crap, between 2-4 usually.

Now adjust your C-4 to be C-5, shimmers are pitch shifted reverb an octave higher than the original sound. Because we have applied the time stretch technique our render will still be in time an octave higher. (if you want to make submarine reverb set it to C-3, or add another chain on song screen and have submarine and shimmer together!?) Now turn the DRY to 00 on the render, turn the reverb to A0, now we will only hear the octave up reverb tail, now to delay the reverb tail we use the FX command DEL02, to delay the render by 2 ticks. Now it will sound pretty good.

The final step is to add reverb on your original pattern, it will then blend into the octave up render reverb to create a full sounding Shimmer. I own a strymon reverb pedal, so I've made this to sound as close to that as I can."