Script Oscilloscope Buffer Size

Reply to Script Oscilloscope Buffer Size on Tue, 05 May 2026 11:35:17 GMT

ustk — Tue, 05 May 2026 11:35:17 GMT

@Chazrox you need to set the ring properties again after changing the variable, it's not automatic

Reply to Script Oscilloscope Buffer Size on Tue, 05 May 2026 10:56:22 GMT

Chazrox — Tue, 05 May 2026 10:56:22 GMT

@ustk That was exactly what I needed. Thank You! As far as the dynamic part goes, I tried to create a reg for buffer length and change the value with a knob but im not getting any change.

const var Knob4 = Content.getComponent("Knob4");

reg bufferLengthNOW = 0;

db.setRingBufferProperties(
{
	"BufferLength": bufferLengthNOW,
	"NumChannels": 1
});

db2.setRingBufferProperties(
{
	"BufferLength": bufferLengthNOW,
	"NumChannels": 1
});


include("LafOscilloscope.js");

inline function onKnob4Control(component, value)
{
	if (value)
	{
		bufferLengthNOW = value;
		FloatingTile1.sendRepaintMessage();
	}
};

Content.getComponent("Knob4").setControlCallback(onKnob4Control);

Reply to Script Oscilloscope Buffer Size on Tue, 05 May 2026 10:31:04 GMT

ustk — Tue, 05 May 2026 10:31:04 GMT

@Chazrox It's volatile, so you need to do set the ring buffer properties in script so it can be recalled at init/compile.

On the oscilloscope node, create an external display buffer

then in the script:

const var dbs = Synth.getDisplayBufferSource("ScriptFX/HardcodedFX name");
const var db = dbs.getDisplayBuffer(0); // # index of the external display buffer -1

db.setRingBufferProperties(
{
	"BufferLength": 8192,
	"NumChannels": 1
});

And it's dynamic, in the case you want to change it with slider/combobox/etc