Unisill

Thousands of parts, one motion.

Glue compressor: RMS sensing that blends feed-forward and feedback detection, a soft knee and a release that speeds up on transient material and relaxes on sustained material.

◆ Paidorg.sournd.dynamics.unisill

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.dynamics.unisill
Category: Dynamics
Type: Compressor
Licence: £2.99 once, or in the subscription
Version: 1.0.0
Parameters: 10
Latency: none
Tail: 2 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	`threshold_db`	Threshold	-60	0	-18	dB	linear
1	`ratio`	Ratio	1	100	3	x	log
2	`attack_ms`	Attack	0.1	1500	10	ms	log
3	`release_ms`	Release	5	2000	250	ms	log
4	`knee_db`	Knee	0	24	8	dB	linear
5	`feedback_pct`	Feedback blend	0	100	35	%	linear
6	`auto_release_pct`	Auto release	0	100	50	%	linear
7	`makeup_db`	Makeup	0	24	0	dB	linear
8	`mix`	Mix	0	100	100	%	linear
9	`sidechain_hpf_hz`	Sidechain high-pass	20	500	60	Hz	log

How it is made

Original sOURnd design blending general techniques: log-domain gain computer with quadratic soft knee, one-pole RMS detection, feed-forward/feedback detector blend, crest-factor program-dependent release.

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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.dynamics.unisill" };
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.dynamics.unisill", &e) == SOURND_OK) {
    sournd_engine_prepare(e, 48000.0, 512);
    sournd_engine_set_param(e, 0, -18); /* Threshold */
    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.dynamics.unisill to my JUCE plugin. Follow https://sournd.com/docs/juce/index.md
and the engine reference at https://sournd.com/engines/unisill/index.md. Expose every parameter through APVTS.