is the soothe 3 upgrade worth it?

what soothe 3 actually adds

Soothe 3 shipped May 19, 2026. the upgrade is $55 from any perpetual Soothe license. at $55 it is not expensive in absolute terms. the question is whether what it adds changes your specific workflow enough to justify it.

here is what changed, without the marketing framing:

the low-latency mode is real. zero added samples at base sample rates, about 1 ms at higher rates. this is not a setting change or a quality-mode trade-off: it is an alternative DSP path specifically built for tracking and live monitoring. if you have ever recorded a vocalist through Soothe 2 and dealt with the latency, this is the fix. for session work where the suppressor is in the signal chain during recording, the low-latency mode alone may justify the upgrade.

the dual-mode engine is a genuine redesign. Soothe 2 had a soft/hard toggle as a mode setting. Soothe 3 rebuilt the engine around both modes as first-class variants:

• Soft mode uses an adaptive threshold that moves with the source. the intent is a safe default: you can drop it on any source without having to dial carefully to avoid over-processing.
• Hard mode carries forward the Soothe 2 fixed-threshold behaviour. the more reactive, compressor-like grab that became a creative effect in Soothe 2 is preserved here.

the Detail parameter consolidates two knobs into one. the previous detail / selectivity pair had a learning curve. a single Detail parameter replaces both, calibrated to keep the full range of the previous behaviour accessible without two interacting controls. if the two-knob system ever confused you, this is an improvement.

Tilt controls. a tilt EQ shape applied to the processing response, letting you skew how much attention the suppressor pays to the low versus high end of the source. useful on sources with asymmetric resonance distribution.

multichannel up to 9.1.6. atmos, surround, and immersive post-production workflows. if you do not work in those formats, this adds nothing.

Linear Phase option in two clicks. for mastering or situations where the minimum-phase artifacts of the default mode are audible or problematic.

what Soothe 3 did not change: the iLok requirement, the linear-frequency spectral basis, and the premium positioning. retail is $259.

what stayed the same

if you are a Soothe 2 user comfortable with the workflow, most of what you rely on is unchanged:

• the core spectral analysis approach is the same category of engine, refined rather than replaced
• the external sidechain is still there
• the preset library carries forward and extends the Soothe 2 base
• the iLok requirement is still in place

the upgrade is not a rebuild that obsoletes your Soothe 2 muscle memory. it is additive.

the case for upgrading

the $55 upgrade is worth it if one or more of these is true:

you track through your resonance suppressor. the low-latency mode is not a paper spec. if your workflow involves recording a vocalist or acoustic instrument with the suppressor active in the chain, the difference between Soothe 2’s latency and Soothe 3’s low-latency mode is the difference between usable and not. this is the single clearest reason to upgrade.

you work in immersive or post-production formats. multichannel support up to 9.1.6 is the only tool in this comparison that covers that requirement.

you need AAX for Pro Tools daily. both Soothe 2 and Soothe 3 ship AAX. SMOOTH does not.

the adaptive Soft mode changes your starting-point experience. some Soothe 2 users find the manual calibration required to avoid over-processing on different sources tedious. if that friction is real for you, the adaptive Soft mode is built to reduce it.

you use the linear phase mode in mastering or critical reference work. Soothe 2 did not have this option.

the case for not upgrading

$55 is not a large number, but money spent on a Soothe 3 upgrade is $55 not spent on something you do not yet own. the upgrade makes less sense if:

you mix, not track. if Soothe 2 sits on playback tracks during mixing and you never monitor through it live, the low-latency mode never appears in your workflow. the DAW compensates for the latency automatically. the upgrade’s headline feature does not apply.

you never found the two-knob detail/selectivity system a problem. the Detail consolidation is a convenience improvement. if the previous system felt intuitive, this adds nothing.

you do not work in immersive formats and do not use Pro Tools. multichannel and AAX are non-factors if they are not in your signal chain.

the adaptive Soft mode is not a pain point. if you have a starting point for depth and selectivity that works across most of your sources, the adaptive threshold is an improvement you may not notice.

the alternative path: SMOOTH at $29

full disclosure: i make KERN SMOOTH.

if you are a Soothe 2 owner deciding whether the $55 upgrade makes sense, there is a third option worth naming. $29 for SMOOTH is less than the Soothe 3 upgrade. it does not give you the features Soothe 3 adds. it gives you something different:

• 40 ERB-spaced bands instead of linear-frequency bins. the processing concentrates where your cochlea localises the problem.
• native M/S routing. Soothe 2 and Soothe 3 are stereo-only.
• no iLok. SMOOTH activates once, caches the license, and runs offline forever. three devices per key.
• under 3% CPU on macOS at 44.1 kHz, single instance.
• a different architectural answer to the same resonance problem.

SMOOTH does not have low-latency tracking on par with Soothe 3’s zero-latency mode, AAX, or multichannel. if those are the reasons you are considering the upgrade, SMOOTH is not the answer.

but if your Soothe 2 use is mostly mixing-in-the-box on stereo tracks, and the iLok is friction you would rather not maintain across machines, spending $29 on a different architectural approach leaves you with two tools instead of one upgraded one. that is a different kind of value.

comparison: soothe 2 vs soothe 3 vs SMOOTH

decision framework

upgrade to Soothe 3 if:

• you record vocals or instruments through your resonance suppressor and the latency is a real problem.
• you work in immersive formats (5.1 / 7.1 / 9.1.6).
• you work in Pro Tools and need AAX.
• you find the Soothe 2 detail/selectivity calibration tedious and the adaptive Soft mode would change your starting-point experience.
• you have used the linear phase mode or need it for mastering.

stay on Soothe 2 if:

• it is doing the job and none of the above apply.
• the $55 represents $55 of something you do not yet own.
• you mix in the box and the DAW compensates for latency automatically.

consider SMOOTH instead if:

• you mix more than you track and the low-latency mode is not a workflow need.
• iLok management across multiple machines is friction you would rather skip.
• ERB-domain psychoacoustic processing and native M/S routing are interesting to you architecturally.
• you want to spend $29 and keep the remaining budget for a different tool entirely.

get both if:

• you want Soothe 3 for tracking and SMOOTH for mixing, with the ERB-domain character on stereo material. the combined cost ($259 + $29) is less than a single year of most subscription software.

frequently asked questions

frequently asked questions

how much does it cost to upgrade from Soothe 2 to Soothe 3?

the upgrade is $55 from any previous Soothe perpetual license (Soothe 1 or Soothe 2). purchases made after February 18, 2026 received a free grace upgrade to Soothe 3. the full retail price for new customers is $259.

what is new in Soothe 3 that Soothe 2 does not have?

the headline additions are: a true low-latency tracking mode (zero added samples at base sample rates, about 1 ms at higher rates), a redesigned dual-mode engine with Soft (adaptive threshold) and Hard (fixed threshold, the Soothe 2 behavior) modes, a single Detail parameter replacing the two-knob detail/selectivity system, Tilt controls for low-end shaping, a Linear Phase option in two clicks, and multichannel support up to 9.1.6. the iLok requirement carries over from Soothe 2 unchanged.

does Soothe 3 still require iLok?

yes. Soothe 3 is iLok-based and requires the iLok License Manager software. no physical dongle is mandatory, but the iLok system is. one license covers three machines. this is unchanged from Soothe 2.

should I upgrade to Soothe 3 or buy KERN SMOOTH instead?

if low-latency tracking is a real workflow need for you (you record vocals or instruments through your resonance suppressor), the $55 Soothe 3 upgrade is the stronger choice. if your Soothe 2 sits on playback tracks during mixing and the low-latency mode never comes up, SMOOTH at $29 is a different architectural option for less than the upgrade, without the iLok overhead and with ERB-domain psychoacoustic processing and native M/S routing. the two paths are not the same tool at different prices. they are different answers to the same category.

what happens to my Soothe 2 license if I upgrade?

oeksound has not publicly stated that Soothe 2 licenses are revoked on upgrade. check with oeksound directly before upgrading if maintaining Soothe 2 access on a secondary machine matters to you.

a note from the developer

i am biased. i make SMOOTH and i would like you to buy it. here is the honest version of that bias: i do not think the right answer is always SMOOTH.

Soothe 3’s low-latency tracking mode is a real, meaningful feature for producers who record through their suppressor. if that is your workflow, the $55 upgrade is a clear yes. the adaptive Soft mode is also a genuine quality-of-life improvement if the Soothe 2 calibration loop has ever frustrated you on a source you did not know well.

the SMOOTH case is different. it is not “SMOOTH is better than Soothe 3.” it is: if you mix mostly in the box, the low-latency mode never touches your day-to-day work. in that context, $29 for a different architectural approach (ERB bands, M/S routing, no iLok) is a real option that the mainstream “is Soothe 3 worth it” conversation usually forgets to mention.

i am a solo developer in Denmark. if you have tested both and your ears land somewhere different from what i wrote here, tell me. jonas@kernaudio.io.