Simple Drum Machine // Pure Data Tutorial

[@draconianrhythms]

Awesome stuff man 👌

[@SimonHutchinson]

Excellent explanation and sweet patch! Thanks for sharing.

[@uttuclub]

this is great thanks so much for posting - would it be okay to ask what the point of the [-~0.25] offset is for on the cos~ waveshaper function - is it just to stop it clipping?

[@MikeMorenoDSP]

Thanks for your comment. The point of the [-~ 0.25] offset is to get a sine waveshaper function instead of a cosine which will prevent clicking at the start and end of the ramp, otherwise without the offset, it will click and introduce DC. Sadly, there is not [sin~] in pd vanilla unless we use [expr~ sin($v1)] but that takes way more CPU and is in radians iirc.

[@uttuclub]

@@MikeMorenoDSP great so it's offsetting the frequency start point not the amplitude of the wave. I think i got it , thanks so much for the reply!

[@MikeMorenoDSP]

@@uttuclub More like the phase starting point, sin~ starts at zero crossing "0" and cos~ starts at "1" which will make the thing click.

[@uttuclub]

@@MikeMorenoDSP of course got it thanks for clarifying

[@goddoggoddoggoddog]

Super cool! Love the trick with the step sequencer triggering a seed message to [random].

[@rimbod1366]

That clears up a few things for me! Thank you!

[@playamaqui]

Thank you so much, Mike!

[@SitkaInstruments]

I love the patches you do, and now I'm glad to see the tutorial

[@Rob_65]

Very nice. I just started PD a week or so ago to see if I can use this to prototype stuff I want to create using (analog) electronics. This is exactly what I was hoping to use PD for 👍

[@Max16032]

Simple yet powerful. Superb stuff.

[@jmpglubglub5238]

Very good instructions. Nice, simple explanation of the why and great use of visual concepts using the scope. I learned so much so fast! Thank you!

[@MikeMorenoDSP]

The scope is your friend, definitely one of my best guides to understanding Pd and signal processing.

[@MrTheakstone]

Loved this. Nice work!

[@MikeMorenoDSP]

Thank you!

[@synthesauriov3195]

This is awesome! Will definitely try it later. Thanks!!

[@npproducoes]

That was really amazing! Thanks for sharing this...

[@mageprometheus]

Thanks Mike. 😃

[@motelflamingo]

Great, man! Super fun and useful tutorial. Loved it.

[@banksideleopards2791]

Bravo! Thank you so much for this tuto man!

[@patricioisaiascv]

This is gold! Make more please 🤓 Saludos desde Chile!

[@MikeMorenoDSP]

¡Gracias Patricio! Espero haya sido útil. Si tienes cualquier retroalimentación o un tema que quieras aprender en el siguiente tutorial avisame :)

[@alex-esc]

Can you share your theme / colors-plugin.tcl file used on this tutorial?

[@toitoitoy]

Interesting, thanks Mike.

[@MikeMorenoDSP]

No problem! Thanks for watching! Let me know if you have any feedback or any subject you would like to learn on my next tutorial :)

[@doyourownwaves4214]

Fantástic!

[@safexkeeping5850]

Thank you!

[@AbsolutTazz]

thank you so much! very useful :)

[@MikeMorenoDSP]

Thanks! I'm glad it was of use. Let me know if you have any feedback or any subject you would like to learn on my next tutorial :)

[@Jesus-um1rb]

Maestrazo tome clases en tus cursos de camomille, tu ingles es excelent! jaja no note que eras tu hasta ver el logo, quiero ser como tu de grande! jaja saludos!

[@MikeMorenoDSP]

Gracias Jesus jaja, pronto publicaré más videos como estos. Quizás unos en español :)

[@igorabdoaguilar9331]

nice!

[@cristianoseverofigueiro8961]

Buenissimo!

[@matiaslanzi9969]

How can I change the colors of PD? I am looking through the tcl files but I can't find the definitions for most of the UI. Thanks for the great explanation.

[@MikeMorenoDSP]

You need to download Pd-next for your OS: github.com/sebshader/pdnext/releases/ Here's how it works. "to get started with colors: copy doc/7.stuff/colors-plugin.txt into your pd path and change the extension to .tcl. Then change the values below "array set ::pd_colors {" using values from a hex color picker, or tk color names." The pd path could be where you store your externals. Glad you like the video! Happy Patching!

[@matiaslanzi9969]

@@MikeMorenoDSP Thanks so much, works perfectly!

[@onderbox186]

Thanks for the video Im reacreating this a bit for my own patch but i have a problem. If I change the value for speed of the metro. It sends out a bang. Do you know how I can disable that? that when i change the value that it doesnt send out a bang but just like a clock(divider) it just changes bpm smoothly?

[@MikeMorenoDSP]

afaik [metro] doesn't send a bang when you change its rate. However, you are correct that the bpm in [metro] doesn't change smoothly. What you need is a higher resolution clock, the simplest way I can think of doing that is using a [bang~] to a [snapshot~] object. Then connecting a [phasor~] with the rate you want at a [snapshot~] object -> [< 0.5] -> [change] -> [sel 1] -> counter object or [i ] [+1] counter. Then you change the phasor's frequency rate to change your clock rate, and it is more smooth and instant!

[@onderbox186]

@@MikeMorenoDSP Thanks for a lot for this tip. Im gonna look at it.

[@WARDISWARD]

04:45 HOw come the sqrt does a downward pitchbend5(show on scope ) instead of upwards ?

[@MikeMorenoDSP]

It's a bit difficult to explain, but this bass drum has no oscillators. The line~ object creates a ramp that we use as phase for the sine waveshaper. Making alterations to the line~ object with a pow~ or sqrt~ will result in a modulation of the phase from high speed to low speed, which results in a pitch bend. That's why it looks different on a scope. The phase is related to the frequency, but it is different. See for example Phase Modulation vs Frequency Modulation. github.com/porres/Live-Electronics-Tutorial

[@Jamslerr]

I tried using this version of PD to change my background and text colors. I could not get it to work on my system. All I got was errors in the display box when booting. Could you help me out with this?

[@MikeMorenoDSP]

Sure, go to this link and make sure you downloaded the correct version based on your OS Pd-0.52-1-Next.app.zip for mac or pd-0.52-1-Next.windows-installer.exe for windows github.com/sebshader/pdnext/releases/tag/0.52-1 Download and unzip this on your externals folder: github.com/sebshader/color-themes-plugin Then open Pd next, and on preferences there should be a Color Themes... option.

[@WARDISWARD]

Hmm I don't get the seed message The random object automatically outputs values between 0 and 2 ( 3 minus 1 ) why give it a seed ? Even more confusing is why a seed of 167 doesn't trigger the bassdrum

[@MikeMorenoDSP]

Random values are not actually random, they are a defined set of numbers defined by the seed, which is an ID for that set. So by resetting the seed of our random object every 8 steps or so, we will get a repeating rhythm based on the seed. en.wikipedia.org/wiki/Random_seed

[@neocolors]

​@@MikeMorenoDSP perfect explanation! Thank you!!

[@itmamfauzii6143]

I have problem that the sound doesent come out ;((

[@MikeMorenoDSP]

Make sure your DSP is turned on and your audio preferences are set to your audio driver. If not, show us your problem on the pd discord server: discord.gg/aNd8RrT

[@James.5703]

how is your canvas that charcoal colour?

[@MikeMorenoDSP]

mikemorenodsp.github.io/posts/pure-data-faq/#how-can-i-change-the-color-scheme

[@James.5703]

@@MikeMorenoDSP ty

[@rickyardo2944]

it is blurry and is not me as all else is fine