Hello,

I am working on a Sound Installation for a special Education School. The Installation is going to be located in the Snoezel Room (a room with a soothing and stimulating environment). So the basic Idea is, that you can press a button (or another input device like IR ... still working on this) and then a "Star" (Led lights at the ceiling) turns on and a corresponding sound is heard. The light is supposed to fade together with the sound. To be able to achieve this I want tu use a Bela that runs a PD Patch and controls the LEDs. So right now I am still working on the basic Patch, that has to be PD Vanilla (because of Bela). Right now I am working with 8 "Stars" and when you press a button (right now on a midi Controller) it starts an ADSR Envelope that controls a Bandpass Filtered noise sound. You can chose different scales like Overtones, Pentatonic, .... . Additionaly I have added atmospheric sounds like water and waves/wind to create a soothing atmosphere. What I want to do now (and where I do not know how to achieve this) is:

1. I would like to integrate a Loop Function, that saves all the Input Data (Numbers and the Time when they are triggered). It should start to record the Data when the first Sound is triggered and then when there was no Input for a certain threshold (like 5 - 10 sec) it should play back the recorded Data in a Loop.

2. For the Atmosphere I also would like to add a soothing tonal drone that fits the Sound of the Scale of the Resonating Noise. I tried something with a phasor~ an long attack and release and a bit of filtering ... but it really does not sound good and soothing now. Any suggestions on how to get an atmospheric soothing slowly changing drone like tonal sound would be of big help!

I figured out the part with the loop function, if anyone might have a similar question. Basically I used a timer to count the time between inputs and used pack to combine one note value with the time value. Then I used the text object to write the Data as lists into a textfile. To play back the loop I just reversed the action and used delay to reverse the timer part.

Any suggestions for part 2 of my question?

Check out http://www.martin-brinkmann.de/pd-patches.html. There are some nice drones here, although the patches are a bit hard to follow.

If you want to make your own, I'd suggest creating multiple layers. One filtered sawtooth on its own can sound rough, but four or five tuned to a chord can be much richer. Also, don't rely on the basic [lop~] object. Use [bob~] or some other external filter.

it's possible that you will achieve a smoother sound if you band limited the phasor~ output if you aren't already. if you search around for band-limited oscillators there is a big variety of things. i saved a link to these abstractions a while ago: https://github.com/enzienaudio/heavylib/tree/master/hv.osc
i don't know anything about Heavy either practically or politically, but the abstractions look ok.

if i was making a drone, i would probably use a fm/phase modulation with at least three operators and vary the pitches and depths over time so that no single beating frequency dominates for too long. not everyone loves the sound of this though.

whenever i make a drone-ish sound with a short, delay-line resonator, it is rewarding. you can feed the delay line with both semi-rhythmic percussive noises and tones sweeping up and down. this can sound more sitar like, or it can give the impression of space because it is part-way to a reverb.

To record the midi controller data you can also use seq, a basic midi-data recorder and playback thing.
Your dutch is great, snoezel ruimte, good luck