Plinth Subharmonic Synthesizer plugin

Name: Plinth Subharmonic Synthesizer
Brand: Vitric
SKU: plinth
Price: 29 USD
Availability: InStock

Add a mono sub one octave beneath your kick or bass.

Plugin for Mac & Windows.
Try it free on your computer.

Hear the demo. Loudness matched.

Use headphones or monitors. Phone and laptop speakers can’t play this low.

0:00/ 0:16

About this demo

Blend at 50%, detector at 350 Hz, resonance and clip at zero.

Rendered through Plinth Subharmonic Synthesizer 0.1.3 on macOS. Input and processed excerpts are matched in loudness. Switching keeps your place.

Open input audio ↗Open processed audio ↗

A subharmonic synthesizer plugin that generates a mono sub one octave beneath the fundamentals in your audio. See the detected source and added sub together, then set its level with Blend.

$29~~Regular price $50~~

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Mac & Windows · VST3, AU and AAX · version 0.2.10

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Plinth Subharmonic Synthesizer 0.2.0 licensed on a bass loop: the generated sub drawn as the brightest curve at 18.3 Hz under the detected 36.5 Hz fundamental, the first located-subharmonic chip lit, and the SUB LEVEL VU integrating on the VS-26 faceplate — InterfaceView full size

The trial uses the full plugin. Install it in your DAW, then start the 3-day trial from its license screen. No card required.

Read the Plinth manual

Plinth$29

3-day trial

THE LISTENING ROOM

Listen to Plinth.

One performance. Two perspectives. Loudness matched.

Use headphones or monitors. Phone and laptop speakers can’t play this low.

0:00/ 0:16

Blend at 50%, detector at 350 Hz, resonance and clip at zero.

About this demo

Rendered through Plinth Subharmonic Synthesizer 0.1.3 on macOS. Input and processed excerpts are matched in loudness. Switching keeps your place.

Open input audio ↗Open processed audio ↗

IN MOTION

Plinth, running.

IN YOUR SESSION

See what your low end is doing.

A filtered mono detector follows the fundamentals in your source, with up to three generated voices one octave below. The analyzer separates the source from the added sub, and frequency chips let you mute individual voices. Blend adds the sub to your dry signal; Resonance changes its bloom, and optional Clip controls the summed peaks.

0.000degrees of drift in the 80 Hz test over 60 seconds

0samples of latency

3generated sub voices

1mono sub bus, dead center

A CLOSER LOOK

Inside Plinth.

Plinth Subharmonic Synthesizer analyzer tracking a bass loop: the generated sub drawn as the brightest curve and labelled 18.3 Hz SUB, the detected 36.5 Hz fundamental marked beside it, the AUTO TRACKING status line, and the first located-subharmonic chip lit at 18.3 Hz

The sub it made

The analyzer separates the detected 36.5 Hz fundamental from the generated 18.3 Hz sub.

Plinth's LOCATED SUBHARMONICS row: six slots under the analyzer, the first lit at 18.3 Hz, the next two reading READY, the last three showing a dash

Three voices, one chip each

The first three chips show up to three generated voices at once; click one to mute or restore its voice. The last three tiles in the row are reserved and stay dark.

Plinth's BLEND knob engraved 0 to 100 with its pointer at 50, the SUB LEVEL VU beside it with the needle in the meter, and the RESONANCE and DETECT knobs below

Blend is a volume sum

BLEND is engraved 0 to 100 with the SUB LEVEL VU beside it. At 100 the sub sits at level with the dry low band, by volume.

All features & controls

Filtered mono detection sidechain; the dry path is never processed by the detector
Up to three generated subharmonic voices on one mono bus, dead center
Generated sub phase-locked to the source: plus or minus 0.000 degrees of drift over 60 seconds against an 80 Hz reference
Phase correction is bounded at 10 degrees per cycle when locked
Blend to 100 puts the sub at level with the dry low band by volume: no compressor, ducker or auto-makeup
The recorded pink-noise test renders exact silence on the sub bus
Confidence smoothed for about 30 ms before a voice can open
Octave hysteresis: zero flips on the octave-trap battery
Decorrelated stereo program yields bit-identical left and right sub contributions
Override with Engage: pin the fundamental by hand, bypassing detection
Optional first-order ADAA soft clip; recorded worst non-harmonic spur minus 104 dBFS on a clipped 35 Hz sine at full clip
Zero reported latency, the clip stage included
Display: located-subharmonic chips with Hz readouts plus the generated sub on the spectrum
Designed from a hand-drawn sketch; three notes on it set the rules the DSP follows
AU, VST3 and AAX on macOS; VST3 and AAX on Windows

The detector, 100 to 500 Hz

DETECT sets the low-pass cutoff of the mono detection sidechain, from 100 to 500 Hz. Plinth follows fundamentals up to about 385 Hz; a higher note is read an octave low. Drag its line on the analyzer to adjust the detection region.

Pin the frequency by hand

ENGAGE replaces automatic tracking with the fundamental set by OVERRIDE. The generated sub is one octave below that setting.

Soft clip, still no latency

CLIP soft-clips the summed dry signal and generated sub. It is shown at 80%, with zero reported latency.

Put it to work.

Kick drums

A phase-locked sub under the kick's fundamental, at level with the low end by volume, with the clip stage catching the peaks when you want it to.

Bass guitar and synth bass

The detector follows the played fundamental, and the chips show the generated sub frequencies.

808s and sparse low end

Blend brings the generated sub up to the dry low band by volume, with no compressor or ducker reshaping the groove underneath it.

Sound design

Override pins the frequency by hand, Resonance shapes the voice, and the display keeps showing what the box is doing while you push it.

THE DETAILS

Fits your setup.

Sub voices: Up to 3 · one mono bus, dead center
Detection: Filtered mono sidechain · dry path untouched · fundamentals up to about 385 Hz
Phase lock: Plus or minus 0.000 degrees over 60 s vs 80 Hz
Pink-noise test: Exact silence on the sub bus
Clip: First-order ADAA soft clip
Controls: Blend · Resonance · Detect · Override · Engage · Clip · Output · Solo · Power
Latency: 0 samples, clip stage included
Formats: VST3 and AAX on macOS and Windows · AU on macOS
Platforms: Windows 10+ (64-bit) · macOS 10.15+ Intel / 11+ Apple Silicon
Made in: USA
Windows: Windows 10 or later, 64-bit. VST3, AAX, Standalone.
macOS: macOS 10.15 or later on Intel; macOS 11 or later on Apple Silicon. AU, VST3, AAX.
Hosts: A 64-bit host supporting your platform’s plugin format. Your DAW may require a newer operating system.

Use it in Pro Tools, Logic Pro, Ableton Live, Cubase, Studio One, FL Studio, REAPER, Bitwig Studio, and other compatible hosts.

Find the right format for your DAW

Questions about Plinth.

Does the generated sub drift against the source?

Recorded drift against an 80 Hz reference is plus or minus 0.000 degrees over 60 seconds, against a 5 degree test threshold. Phase correction is bounded at 10 degrees per cycle when locked.

What happens on noise or unpitched material?

The sub bus renders exact digital silence in the recorded pink-noise test. Confidence is smoothed for about 30 ms before a voice can open.

Is the sub stereo?

No. The sub is mono and dead center: decorrelated stereo program yields bit-identical left and right contributions.

Does it add latency?

No. Reported delay compensation is always 0, the clip stage included. Sub onset is tracking physics, about 7 cycles to 90 percent, not plugin latency.

Which formats and platforms?

AU, VST3 and AAX on macOS; VST3 and AAX on Windows. Check the system requirements and your DAW’s supported formats.

Is there a free trial?

Yes. Every released Vitric plugin has a free 3 day trial with every feature available during the trial window. Trials need a live internet connection; the plugin checks in every few minutes. Purchased perpetual licenses work offline. Get the installer from the downloads page and request your machine-bound trial license on the trial page. At the signed expiry the plugin’s output goes silent until you install a purchased license or a valid subscription grant. The plugin can still load, so projects and saved settings are not deleted.

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