Kick Drum resonance

[dkmayer]

@mikecalvert

Sometimes when say playing a synth in a Pbind the transient seems to shift creating a doubling sound

I think that’s the same issue Eric described some posts before in case of {}.play . Ndef().play automagically applies an envelope. See the help of NodeProxy.play: it also has a fadeTime argument you can set to 0.

Another point: it depends on how fast you intend to play, but for percussive instruments it usually makes sense to take OffsetOut instead of Out for better accuracy.

[mikecalvert]

yea this really for lack of a better word smooths it and this is my first time seeing OffsetOut
its awesome !!

[mikecalvert]

OffsetOut is great would be nice to have known this ages ago

[dkmayer]

Great to hear that it works for you! I think OffsetOut is exact enough for most practical purposes (at least it usually is for me).

Just one add-on: it’s not sample accurate in realtime. This is a delicate topic which comes up again and again. If you’re interested, there are some threads on this:

Imperfection of language-based timing

This goes back to an observation of my colleague Gerhard Eckel. I posted this a while ago on the mailing list, but can’t find it anymore in the archives. As I think it’s an interesting topic I’m reposting it here again for future reference. Timing in general is a crucial topic and practically users are mainly confronted with asynchronicity between server and language, latency, quantization, the Out/OffsetOut differences etc. Sample-accurate timing isn’t relevant in all contexts, nevertheless in…

Problem in controlling a Playbuf with Patterns

Hi! I want to use a Playbuf in order to play a wavetable that I have created in a buffer. When using just play; the Playbuf works as expected. When I want to make it work with patters things do not go as expected… this is the example code: // 1) Create a table at buffer 10: ( p=2.pow(11); v=Signal.sineFill(p, 1.0/[1, 2, 3, 4, 5, 6]); v.plot; n=Buffer.alloc(s,p,1,bufnum:10); n.loadCollection(v); ) // 2)This plays normally… ( SynthDef(\help_PlayBuf, {| out = 0,buf=10,trig=1000,dur | …

There might also be some possible system-related accuracy issues, at least on OSX I didn’t encounter such since OS 10.15, described in the last post of the first thread:

Imperfection of language-based timing

Ultimately, a comment of James in a thread on the mailing list has shed more light into this: the vast amount of jitter seems to be produced by system action (NTP)! After a switch to OS 10.15 the large jumps in the realtime variants analyzed in the first post of this thread – and confirmed by @shiihs on Linux – have gone away! Besides, if you want to check the realtime tests, take the variants below which contain an additional path definition necessary for newer SC versions. https://www.listarc…

[mikecalvert]

Awesome I’ll def go dive into this it’s something Im very interested in. Thank you.

[Sam_Pluta]

I am always surprised how effective a Bessel function is when simulating the resonance of drums:

a = (-1000,-999.99..1000).collect{|item| item.cylBesselJ(1000)};
b = Buffer.loadCollection(s, a);

{(PlayBuf.ar(1,b, 0.2, 1, 0)*5).softclip.dup*Env.perc(0.001, 3).kr(2)}.play;

This would be better with attack and noise elements, but out of the box it has a lot of the character already.

Sam

[mikecalvert]

this is new territory( + bit beyond ) to me, super exciting will research further. thank you

[Benu]

The 808 BD, like most Congas, Toms etc. on analogue drum-machines are T-Bridge Resonators. I my ears a ringing Bandpass sounds closest.

A BD with ringing BPF

https://sccode.org/1-5in

and some oscillator based attempts.

https://sccode.org/1-5im

https://sccode.org/1-5il