Tool coverage is not a statement that Myriagon uses it on cast recordings. Red “Uses AI” markers identify known AI tools; an unmarked entry is not a guarantee that it is AI-free. Voice & AI policy →
Expired
Checked Oct 26, 2026$149; $79 offer expired$149
Spectral warping, pitch and frequency shifting, delay, morphing, and atmospheric reverb in one processor.
WHY IT MADE THE LISTBest when a voice or sound needs to become creature-like, spectral, physically impossible, or convincingly alien without building a long effects chain.
- Category
- Creature and spectral sound design
- Compatibility
- Windows 10+ 64-bit VST3, VST2 and AAX. REAPER use is inferred from VST3 support, not vendor-specific host certification.
- License note
- Free iLok account and PACE activation required, including the 30-day trial. Machine authorization is supported; a hardware dongle is optional. Sales tax may apply.
Automatic LUFS-based speech leveling with multi-speaker balancing and a Preserve Ambience mode that avoids lifting room tone with the voice.
WHY IT MADE THE LISTBest when dialogue levels vary between speakers, scenes, or recording sessions and manual gain riding is slowing the edit.
- Category
- Dialogue leveling
- Compatibility
- VST3 on Windows; REAPER is explicitly listed as a tested host. Mono/stereo, 44.1–192 kHz.
- License note
- Full plugin is free with no feature limits, with mailing-list signup required. AI implementation is not specified on the product page.
Bertom Audio
Denoiser Classic
Free / pay what you want
Low-CPU, zero-latency noise reduction for audio, with straightforward controls for reducing steady noise. It is a lighter option than reconstructive speech restoration.
WHY IT MADE THE LISTBest when steady hiss or room noise needs light reduction during dialogue editing without cloud uploads or added monitoring latency.
- Category
- Dialogue noise reduction
- Compatibility
- Windows 7+ x86-64 VST3 and AAX. REAPER use is inferred from VST3 support; a vendor-specific REAPER test is not stated.
- License note
- The free checkout permits $0. The EULA allows commercial audio production under a non-transferable user licence; redistribution of the software is not permitted.
Four-band parallel dynamic EQ with high/low-pass filters, frequency-selective compression and an equal-loudness comparison aid. The official page lists maintenance version 2.2.3.
WHY IT MADE THE LISTBest when sibilance, chest resonance or harshness becomes excessive only on certain words, so static EQ would dull the rest of the performance. It complements rather than replaces broadband noise restoration.
- Category
- Vocal chain and dynamic EQ
- Compatibility
- Windows Vista+; 64-bit VST3 is listed. REAPER use is inferred from VST3 support, not a current vendor-specific Windows host certification.
- License note
- This is the completely free standard edition, not the separately paid Nova GE. The current product page and online manual do not reproduce a complete EULA; check the supplied terms before commercial deployment or redistribution.
A lightweight vocal-doubling effect with interactive controls for stereo separation and human-style timing/pitch variation. The developer describes it as low CPU and a permanent free download.
WHY IT MADE THE LISTBest when a single vocal needs quick width, depth or a supporting double and recording another performance is impractical. Use subtly on spoken material to avoid an obvious chorus effect.
- Category
- Free vocal doubling and width
- Compatibility
- Windows 10 22H2 or Windows 11 24H2; 64-bit VST3, VST2 and AAX. REAPER 7 is explicitly listed as a supported host.
- License note
- Free download. iZotope authorization uses an account, serial/Product Portal or optional iLok USB. Single-user terms permit multiple installations for the same user, not simultaneous multi-user workstations. AI use is unverified.
Creates three additional harmony voices from one vocal, with per-voice interval, detune, pan and micro-delay plus natural, classic, and artificial formant modes.
WHY IT MADE THE LISTBest when one performance needs fast supernatural harmonies, choral doubles, or stylized vocal layers without recording additional voices.
- Category
- Vocal transformation
- Compatibility
- Windows 10+ 64-bit VST3; suitable for REAPER through its VST3 host support.
- License note
- No account or license key is required. The product page does not state commercial-use terms, so verify them before a release.
A tape-looper-style sampler for recording, layering, reversing, resampling, and degrading material through a 12-bit S950-inspired stage.
WHY IT MADE THE LISTBest when clean source audio needs to feel degraded, unstable, remembered, mechanical, or atmospherically worn.
- Category
- Tape and sampler sound design
- Compatibility
- Windows VST3, AAX, and standalone are officially listed; suitable for REAPER through VST3.
- License note
- The Windows installer may trigger SmartScreen despite being code-signed. Factory-sound usage terms are not stated on the product page; use your own recordings or verify before commercial release.
Institute of Electronic Music and Acoustics
IEM Plug-in Suite
Free
Open-source Ambisonic encoders, room simulation, granular spatialization and binaural decoding, up to seventh order. Version 1.16.0 was released September 30, 2026.
WHY IT MADE THE LISTBest when moving voices, environmental layers or immersive scenes need deliberate placement around a headphone listener, and there is time to build a multichannel routing template.
- Category
- Spatial sound and atmosphere
- Compatibility
- Windows 64-bit VST3. Official documentation includes REAPER routing instructions. This is a multichannel Ambisonic workflow, not a simple stereo insert.
- License note
- GPLv3 open-source. Version 1.16.0 changes FDNReverb and CoordinateConverter behavior; back up sessions and check breaking-change notes before upgrading. Headphone monitoring needs binaural decoding.
A surgical restoration suite with Dialogue Isolate, Spectral De-noise, Spectral Repair, Voice De-noise, Mouth De-click, De-reverb, Breath Control and Repair Assistant. Version 12.1.0 was released October 15, 2026.
WHY IT MADE THE LISTBest when difficult dialogue needs precise removal of clicks, hum, reverb, background noise or isolated intrusions, and a visual editor is worth the higher cost and learning time.
- Category
- AI dialogue repair and restoration
- Compatibility
- Windows 10 22H2 or Windows 11 24H2; 64-bit VST3. REAPER 7 is explicitly supported. Some tools run in the standalone editor, and certain Advanced-only modules or AAX-only plugin formats are not included here.
- License note
- A trial is offered. Single-user terms allow installation on multiple machines only for the same user; simultaneous multi-workstation use requires additional licences. Authorization supports Product Portal/serial or optional iLok USB. Current price has no stated deadline.
Local neural-network speech restoration for noise, reverb, codec damage, clipping, band limitation, and missing-frequency reconstruction.
WHY IT MADE THE LISTBest when production dialogue, remote recordings, or archival speech are damaged by noise, reverb, clipping, codecs, or missing frequency content.
- Category
- AI dialogue cleanup
- Compatibility
- Windows VST3; REAPER is explicitly listed as a tested host. Mono/stereo, 44.1–192 kHz.
- License note
- Serial-key licensed with no iLok account required. A seven-day trial is available; expect higher CPU use from local neural processing.
Voice-Swap
Voice-Swap Plugin
Free plugin; plans £6.99/mo+ before VAT
Transforms recorded vocals inside a DAW using licensed artist models or a custom trained voice model; usage and downloads consume credits.
WHY IT MADE THE LISTBest when a consent-cleared vocal needs experimental conversion using an artist or custom model, provided the intended usage licence and DAW format are confirmed first.
- Category
- AI voice conversion
- Compatibility
- Windows 10+ 64-bit. The vendor says VST/AU but does not specify VST3 versus VST2 and does not list REAPER; compatibility is therefore unconfirmed.
- License note
- Standard singing/voice-to-voice plans and top-up credits are non-commercial unless an appropriate licence or upgrade applies (terms §13.3). Featured voices may need extra licensing. Obtain explicit source-voice consent and commercial clearance; paying for credits is not clearance.
On sale
Checked Oct 22, 2026Universal Audio
Vocal Mix Tape
$99
Ten native processors for tuning, preamp/EQ color, compression, chorus and reverb, including Topline Vocal Tune, VOXBOX, LA-2A, 1176, Capitol Chambers and Studio D.
WHY IT MADE THE LISTBest when a vocal needs a coherent chain for tuning, tonal color, dynamics and space, and several of the included processors fill real gaps in the existing toolkit.
- Category
- Vocal chain
- Compatibility
- Native UAD plug-ins support Windows VST3 and are suitable for REAPER through VST3; no UA hardware is required.
- License note
- UA Connect and an iLok account are required; native licenses support up to three activations. UA confirms the $99 offer but does not state an end date or regular price for this specific bundle.
Slate Digital / SSL / Harrison / sonible
Complete Access: Free Collection
Free
A permanent 16-plugin bundle covering a modular channel strip, EQ, compression, saturation, transient shaping, delay and reverb. X-Orcism II combines pitch, delay, reverb and noise for haunted voices; GateVerb targets large soundscapes.
WHY IT MADE THE LISTBest when a vocal or sound-effects session needs a capable no-cost finishing chain, or when one voice, impact or ambience needs fast stylized color without assembling products from several stores.
- Category
- Free vocal chain and creative effects
- Compatibility
- Windows 10/11, 64-bit VST3. REAPER 6 and later is fully supported and tested. The general requirements list an Intel or AMD processor and 4 GB RAM.
- License note
- A free Complete Access account is required. Current Free Collection versions released October 15, 2026 or later need no iLok; older versions may. All 16 are redeemed together but can be installed individually, including from offline installers. Public pages do not summarize commercial-output terms. AI use is unverified.
Altered
Altered Studio (companion app)
$90/mo billed annually (Professional)
Speech-to-speech editor with Flexi age/effort controls and local morphing. Professional includes 48 kHz export. Realistic adult-to-child de-aging is not independently validated here.
WHY IT MADE THE LISTBest when a consent-cleared performance needs age-shift experiments beyond pitch/formant effects and an export/import workflow is acceptable. Coverage is not permission to clone a voice or process cast recordings.
- Category
- AI age-shift and voice conversion
- Compatibility
- Windows desktop/browser app, not a confirmed VST3 plugin. REAPER integration is file handoff, not native insertion. Local desktop morphing lists an NVIDIA GPU with 8 GB+ VRAM.
- License note
- Free outputs are non-commercial and require credit. Paid rights depend on plan; source-voice consent is mandatory. Terms include broad content/output rights for software improvement: resolve data handling before uploading cast audio. Annual billing; tax extra.
Real-time neural noise removal for voice, with three processing networks, a dialogue-focused low-CPU mode, and separate analysis of stereo channels.
WHY IT MADE THE LISTBest when speech is intelligible but buried under steady or changing background noise and a quick, automatable cleanup pass is more useful than full speech reconstruction.
- Category
- AI dialogue noise removal
- Compatibility
- Windows 10/11 64-bit VST3; REAPER 7 is explicitly qualified. Waves recommends a buffer of 512 samples or higher for VST hosts.
- License note
- Waves Central activation required. Perpetual purchase includes one year of updates; renewal is optional, but later versions and second-seat benefits require coverage. The owned version keeps working on compatible systems. Seven-day demo. No sale end date is stated.
Sonarworks
SoundID VoiceAI
€99 perpetual; Kids €29; 7-day trial
DAW-based AI voice conversion with 50+ factory presets in the perpetual tier and an optional ten-voice Kids pack. A seven-day full trial is confirmed. Permanent free-mode availability conflicts across official pages; realistic spoken de-aging remains unvalidated here.
WHY IT MADE THE LISTBest when a performer-controlled vocal needs age or timbre experimentation inside the DAW and the input performance, transformation, and intended output use are all explicitly cleared.
- Category
- AI voice conversion and age-shift
- Compatibility
- Windows 10/11 VST3; REAPER is explicitly supported. Perpetual local processing lists 4 GB of free RAM. A stable internet connection is still required; offline use is unsupported.
- License note
- Sonarworks allows commercial output use, subject to source rights and consent. Its product page advertises a free mode, but activation support says it is no longer supported: do not rely on free ongoing access. Full local processing requires the paid tier after trial; cloud tokens expire after 12 months. Tax may apply.
Combines Shatter Delay, Headspace Reverb, EQ and maximization. A Euclidean choke system periodically clears delay/reverb buffers, creating blooms, stutters and abrupt spaces.
WHY IT MADE THE LISTBest when a drone, mechanical sound or short vocal fragment needs restless repetition and tails that suddenly cut away. Use it as a parallel creative effect, not natural dialogue cleanup.
- Category
- Atmosphere and rhythmic effects
- Compatibility
- Windows VST3 is reported in launch coverage; the vendor's general FAQ supports modern Windows and lists VST3 paths. A BattleFX-specific minimum OS and REAPER certification were not located; test compatibility.
- License note
- Free $0 checkout emails a key for Unfiltered's direct licence portal; three simultaneous machine activations are stated in its launch post. A complete product-specific EULA was not located. AI use is unverified.
A forward/reverse delay that can blend both directions, with separate feedback and delay effect chains. Modules include filters, distortion, ring modulation, pitch shifting and limiting, plus diffusion and a parametric ducker.
WHY IT MADE THE LISTBest when a voice, impact or ambience needs to bloom backward into a transition, smear into a diffuse tail, or stay intelligible while a complex delay moves around it.
- Category
- Reverse delay and atmospheric effects
- Compatibility
- Windows 11, 64-bit VST3 and AAX. REAPER use is inferred from VST3 support; the developer does not list tested hosts or Windows 10 support.
- License note
- The developer lists version 1.0.1 as free. The public product page does not state commercial-use rights, activation or account requirements, transfer terms, or a full EULA; verify before release work. AI use is unverified.
Watch
Checked Oct 20, 2026A 50-effect rack with pitch/formant shifting, granular and spectral treatments, modulation, an on/off sequencer, X/Y control and assignable macros. Animate coordinates movement across the rack.
WHY IT MADE THE LISTBest when a clean voice, foley hit or environmental loop needs to evolve into an unstable creature texture or moving transition, with several effects responding together.
- Category
- Evolving creature and texture effects
- Compatibility
- Windows VST3 is officially listed. REAPER use is inferred from VST3 support; a vendor-specific host certification and minimum Windows version are not stated on the product page.
- License note
- Sold via Lemon Squeezy. The public product page does not state activation limits, transfer rights or demo terms: confirm these before buying. $29 is a listed price, not a verified temporary discount. AI use is unverified.
Reason Studios
Reason Free
Free
A permanent free Reason Rack with 15 devices, including Europa, Scream 4, The Echo, Audiomatic, RV7000 Mk II, Combinator and modulation/routing utilities. It also installs a 16-track Reason DAW.
WHY IT MADE THE LISTBest when a sound needs layered distortion, delay, reverb and modulation inside one patchable rack, or when a no-cost instrument/effects toolbox would cover several gaps at once.
- Category
- Free modular sound design and atmosphere
- Compatibility
- Windows 10 1607+ or Windows 11, 64-bit VST3. REAPER is explicitly listed as supported. An ASIO interface and a fast, stable internet connection are listed requirements.
- License note
- Free to keep permanently, with no trial, expiry or watermark. Paid devices remain visible but locked; optional Rack Extensions can be purchased separately. The public page does not reproduce the full commercial-use EULA. AI use is unverified.
On sale
Checked Oct 27, 2026€119 incl. VAT with code L4UNCH€159
A new instrument and audio effect combining eight granular slots, live input, spectral resynthesis, wave crossfading, looping, resonators, spectral delay and reverb, with a 1,360-sample factory library.
WHY IT MADE THE LISTBest when source audio needs to become an evolving atmosphere, playable texture or long-form transition, and a deep granular/spectral environment is preferable to a quick single-purpose effect.
- Category
- Granular and spectral atmosphere design
- Compatibility
- Windows 10/11 64-bit VST3 and CLAP; REAPER use is inferred from VST3 support. Requires WebView2 and 16 GB RAM. The developer recommends a 2022+ PC with 12th-gen Core i7 or Ryzen 7 5800X or better, so trial performance first.
- License note
- Nine-day full demo pauses briefly every 15 minutes. Individual licences allow two active computers, require online activation, work offline afterward and are non-transferable. Commercial audio output is royalty-free; raw factory content and derivative libraries are restricted. AI use is unverified.