Glacine

Hold the moment forever.

Sustainer: turn Hold on and the current sound is captured and held indefinitely as a smooth, evolving texture, blended under or over the live signal. While held, the trigger decides when it crossfades to a fresh capture: 0 = manual (only when Hold is switched on), 1 = new note (a stable pitch change larger than Pitch change), 2 = transient, 3 = every N beats, 4 = every N bars (host grid, or the Tempo control without one). Switching Hold off lets the held sound die away over Release.

◆ Paidorg.sournd.performance.glacine

Hear it

Every parameter plays here, rendered on our server. Pick a test sound or your own file, move the dials or press Randomise, and switch bypass to compare.

Details

Engine id: org.sournd.performance.glacine
Category: Performance
Type: Freeze
Licence: £2.99 once, or in the subscription
Version: 1.0.0
Parameters: 12
Latency: none
Tail: 10.5 s
Sidechain input: no
Channels: mono or stereo

Parameters

The id is the C ABI parameter id and the JUCE parameter id (as a decimal string).

Id	Key	Name	Min	Max	Default	Unit	Taper
0	`trigger`	Trigger	0	4	0	-	linear
1	`hold`	Hold	0	1	0	-	linear
2	`sensitivity`	Sensitivity	0	100	50	%	linear
3	`pitch_cents`	Pitch change	10	200	50	cents	linear
4	`every`	Every	1	16	1	-	linear
5	`fade`	Fade	5	2000	150	ms	log
6	`release`	Release	10	10000	1500	ms	log
7	`texture`	Texture	0	100	40	%	linear
8	`low_cut`	Low cut	20	2000	20	Hz	log
9	`high_cut`	High cut	1000	20000	20000	Hz	log
10	`tempo`	Tempo	40	300	120	bpm	linear
11	`mix`	Mix	0	100	50	%	linear

How it is made

Original sOURnd design: a continuously recorded input history, post-attack captures that are level-evened when they decay, and an overlapped cloud of Hann-windowed grains at randomised positions with power normalisation, so the hold has no loop to hear. Triggers come from a relative-level transient detector, a YIN-style pitch tracker and the transport grid. Inspired by our own earlier hardware sustain block; no third-party code or audio.

£2.99 once, yours for good

Ship it in as many plugins as you like
Updates included
Downloads built for you

Or buy just this one now

Your email (receipt and download link) Country

Want lots? Every effect engine £9.99 a month, or everything £14.99.

PayPal. No account: your email is your login.

CMake

cmake

juce_add_module(path/to/sournd_engine)
target_include_directories(MyPlugin PRIVATE path/to/include)
target_link_libraries(MyPlugin PRIVATE sournd_engine path/to/libsournd_cabi.a)

Three lines. Full steps: JUCE quick start.

C++ (JUCE)

cpp

#include <sournd_engine/sournd_engine.h>

sournd::SourndEngine engine { "org.sournd.performance.glacine" };
juce::AudioProcessorValueTreeState parameters { *this, nullptr, "Parameters",
    sournd::SourndEngineParameters::createLayout (engine) };
sournd::SourndEngineParameters bridge { engine, parameters };

// prepareToPlay
engine.prepare ({ sampleRate, (juce::uint32) maximumBlock, 2 });
bridge.prepare (sampleRate);
setLatencySamples ((int) engine.latency());

// processBlock
bridge.apply ((uint32_t) buffer.getNumSamples());
juce::dsp::AudioBlock<float> block { buffer };
engine.process (juce::dsp::ProcessContextReplacing<float> { block });

// get/setStateInformation: hold getCallbackLock() around saveState / loadState,
// so state work never overlaps processBlock (full example: /docs/juce/)

Plain C

sournd_engine *e = NULL;
if (sournd_engine_create("org.sournd.performance.glacine", &e) == SOURND_OK) {
    sournd_engine_prepare(e, 48000.0, 512);
    sournd_engine_set_param(e, 0, 0); /* Trigger */
    sournd_engine_process(e, in, out, 2, frames);
    sournd_engine_destroy(e);
}

Ask your AI

Paste this into your coding assistant:

Prompt

Add the sournd engine org.sournd.performance.glacine to my JUCE plugin. Follow https://sournd.com/docs/juce/index.md
and the engine reference at https://sournd.com/engines/glacine/index.md. Expose every parameter through APVTS.