Teensy 4.1 DIY Synthesizer

Teensy 4.1
DIY Synthesizer "Jeannie"
Part 3: Waveforms

[@edwardfletcher7790]

The things talented people can do with a Teensy microcontroller blows my mind !! The sound quality from this machine is incredibly impressive given its cost !

[@HeavyDutyModularSynths]

big inspiration to make a attempt at something like this, with knowing zero programming language. I think, I may dive into the dark world of learning to attempt to try to program. for the ..... multipleth time.

[@edwardfletcher7790]

@@HeavyDutyModularSynths Scratch would be a really good start. It's compatible with heaps of microcontrollers too 👍

[@robn2497]

@@HeavyDutyModularSynths Just keep going it will be fun.

[@theweazel]

This is amazing. You are a wizard.

[@rolfdegen1806]

Here my final synth kzbin.info/door/XQSpP0qn5MXSkyDo6PZ4Cw

[@doak1694]

That's a cool little thing

[@notsofastener]

I see that your synth has some inspiration from the ElectroTechnique TSynth based on the initial screen showing the patch number, name, active voices and waveform. I was one of the first customer builders of the original Teensy 3.6 version of the TSynth and have done my own mods to it since Simon moved on to the Teensy 4.1 version and now a new variation of that model. Cool to see another Teensy-based synth out in the world that is more than just a basic monophonic synth. Any plans to make this open source or at least go small run commercial production? I'd like to see where this goes and if I could one day buy or build one. Great work!

[@carmeloazzarello7994]

Awesome !!!

[@MegaCadr]

Super cool! Question: I'm hearing something like a bit of popping in there. Is that a recording artifact (or my headphones) or is that coming from the synth? Regardless, sounds great!

[@rolfdegen1806]

It comes from the effect engien in the synthesizer. It overdrives. I need to change the mixer levels in the software.

[@MegaCadr]

@@rolfdegen1806 cool. Thank you!

[@leafsmithleafsmith691]

Excellent. Thanks for posting Rolf. Is the Teensy code available for this ? . I ask because I have been developing my own Synth code based on TSynth Hardware Architecture but with mods in the Teensy code to access more use waveforms.

[@rolfdegen1806]

Hallo Leaf. Thanks :) My code is open source (TSynth core). When the development is finished I will upload it to githup. My block: forum.pjrc.com/threads/63255-New-Teensy-Synth-quot-Shruthi-2-quot

[@leafsmithleafsmith691]

@@rolfdegen1806 Thanks Rolf, I just uploaded my code . github.com/DonnaHammond22/TSynthDH/releases/tag/TSynthDH_DNv1 I like the way you display the OSC waveforms . On my version I just had text. Overall I am thinking of doing a version with less polyphony [down to 8], but with a WTF Dove Audio kind of feature . But its just in the early stages

[@rolfdegen1806]

@@leafsmithleafsmith691 Great. Wat is "WTF Dove Audio"

[@rolfdegen1806]

My old synth project "DEGENERATOR" : www.tubeohm.com/de-generator.html

[@plasmamac]

Echt super👍

[@steffanjansenvanvuuren3257]

I like your Synth. Good job. Did you use the PWM for the Audio or I2S?

[@rolfdegen1806]

IS2. In our last version we use a 32Bit DAC PCM5102A . 400 Sound Patchs kzbin.info/www/bejne/oWScipuof8yAp6c. DIY Project: www.sequencer.de/synthesizer/threads/jeannie-polyphonic-diy-synthesizer.160564/

[@vanlopes1687]

Nice one! I'm making a synth myself and I have a spare lcd screen here. Do you know where can I start making a GUI like this?? Thanks!!

[@rolfdegen1806]

My GUI was a lot of work. It consists of individual text and graphic functions. I am using ST7735 graphics library from Arduino. You can see my code on Github. github.com/rolfdegen/Jeannie-Open-source-Synthesizer

[@CharizardFan_og]

Are synthesizers and audio functions the only thing a teensy can do? Or can it also do security stuff (cameras and sensors) and robotics like the Arduino or the Raspberry Pi

[@rolfdegen1806]

I think the Teensy 4.0 / 4.1 has enough CPU power for other tasks.

[@makingmusiconline2309]

It is basically an arduino, and uses the same IDE. It has additional libraries available for it. So yes, pretty much anything you can do with an Arduino you can do with a Teensy.

[@marc.w.7692]

urst schön und schnell!!!!

[@rolfdegen1806]

Thanks.. this is the final version kzbin.info/www/bejne/g6bFeqh4hr53hdk. You can buy it at tubeohm.com

[@steffanjansenvanvuuren3257]

Source / cause of clicks and pops?

[@rolfdegen1806]

Old version of Jeannie. Here the last version and more..kzbin.info/door/XQSpP0qn5MXSkyDo6PZ4Cw

[@silverseraph8233]

Polyphonic?

[@rolfdegen1806]

Yes. JEANNIE has 8 Voices and 2 osc per voice

[@CarloCattano]

Cool ui!

[@rolfdegen1806]

Thanks

[@rolfdegen1806]

Thanks. I uploaded everything to github and a DIY blog. github.com/rolfdegen/Jeannie-Open-source-Synthesizer www.sequencer.de/synthesizer/threads/jeannie-polyphonic-diy-synthesizer.160564/