Roomette

A real room, right there.

A real-sounding room: distinct early reflections that place a sound at a distance, with a short soft tail.

● Freeorg.sournd.reverb.roomette

Hear it

The real engine runs in your browser. Try the test sounds, your own file or a microphone, move the parameters or press Randomise, and switch bypass to compare.

Details

Engine id: org.sournd.reverb.roomette
Category: Reverb
Type: Room
Licence: Free (Apache-2.0)
Version: 1.0.0
Parameters: 7
Latency: none
Tail: 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	`size`	Size	0	1	0.35	-	linear
1	`distance`	Distance	0	1	0.35	-	linear
2	`absorption`	Absorption	0	1	0.4	-	linear
3	`decay_s`	Decay	0.05	3	0.6	s	log
4	`tail`	Tail	0	1	0.5	-	linear
5	`width`	Width	0	1	1	-	linear
6	`mix`	Mix	0	100	30	%	linear

How it is made

Original sOURnd design: per-ear image-source model of a box room (24 first and second-order reflections with 1/r spreading and per-bounce absorption), order-dependent air/wall filtering, and a short damped four-line Householder feedback network tail.

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.reverb.roomette" };
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.reverb.roomette", &e) == SOURND_OK) {
    sournd_engine_prepare(e, 48000.0, 512);
    sournd_engine_set_param(e, 0, 0.35); /* Size */
    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.reverb.roomette to my JUCE plugin. Follow https://sournd.com/docs/juce/index.md
and the engine reference at https://sournd.com/engines/roomette/index.md. Expose every parameter through APVTS.