CEDAR Voxis vs iZotope RX 12

CEDAR Voxis, released in August 2026, promises real-time voice isolation with less than 10 milliseconds of latency for £199 plus tax. iZotope RX 12 Dialogue Isolate, which needs RX 12 Standard at $399, works in real-time and offline modes but has no published latency figure. That one number decides most of this comparison: Voxis is built for audio you hear while it happens, such as a live stream, a remote interview or a presenter’s monitor feed, and RX 12 is built for audio you fix after it’s recorded. This article compares the two from CEDAR’s and iZotope’s product pages and KVR Audio’s release reports, and says which fits podcasts, streams and video edits.

Written by YECK, founder of MixingGPT. MixingGPT isn’t ranked in this comparison.

Quick Comparison: Voxis vs RX 12 for Real-Time Voice Isolation

The 30-second version. Every figure below was checked against CEDAR’s and iZotope’s product pages, or KVR Audio where noted, on October 12, 2026. Voxis is priced in pounds on CEDAR’s store; RX 12 is priced in US dollars.

These aren’t two versions of the same product. Voxis is one plug-in that does one job. Dialogue Isolate is one tool inside a suite of 18 plug-ins (Standard) or more than 50 tools (Advanced), so the price gap buys a lot more than voice isolation.

CEDAR Voxis: Real-Time Voice Isolation Under 10 Milliseconds

Voxis is a neural-network voice isolator from CEDAR Audio, the company behind the VoicEX 2 and ScreenVox noise suppressors. KVR Audio reported its release on August 27, 2026 as the third plug-in CEDAR had added to its Icons range that year. CEDAR describes it as separating speech and vocals from unwanted sound and removing excessive reverb. KVR’s report adds that it runs on a deep neural network trained on speech and sung voice, not a conventional expander or a stored noise print.

The defining spec is latency: CEDAR states less than 10 milliseconds, which it calls good for almost all live sound applications. That figure is what makes it usable where a voice is being monitored as it happens: a presenter’s in-ear feed, a remote guest on a stream, a front-of-house vocal channel. The noise it’s aimed at is the noise of real rooms and venues: air-conditioning and traffic rumble, audience noise and room ambience.

The control set is short. Three band controls set how much noise is removed in the low, mid and high frequencies. A Link button moves all three together while keeping their balance, and a Voice control raises the isolated voice. The band split lets you remove more in one region, such as low-frequency rumble, than in the others. CEDAR’s shop page also says the processing is efficient enough for multiple instances, which matters on a podcast with three or four open microphones.

Best for: Live streams, remote interviews, broadcast, conferences, houses of worship and front of house, where the processed voice is heard as it’s spoken. Also podcasters who want cleaner audio on the way in, so there’s less to repair afterwards.

Where it falls short: It’s a single-purpose tool with no editor, no offline high-quality mode and nothing for clicks, plosives, clipping or hum. CEDAR’s pages don’t list supported sample rates or channel configurations. CEDAR names no specific video editors as tested hosts, only “all major audio and AV hosts supporting AAX, AU and VST3,” so a Premiere Pro or Resolve user should confirm it in the trial. CEDAR’s own pages list the price in pounds only.

Pricing: £199 plus tax on CEDAR’s plug-in store. KVR Audio’s launch report gives $269 and €229, also plus tax. There’s a 14-day free trial, and it runs on Mac and Windows as AAX, AU and VST3. CEDAR’s own alternatives cost more: VoicEX 2 (£249 plus tax) is its AI dialogue noise suppressor with the same under-10 ms latency claim and two controls, one for background and one for speech level, and ScreenVox (£249 plus tax) is a “near-zero latency” spoken-word suppressor. StageVox (£249 plus tax) is CEDAR’s near-zero-latency suppressor for singers, aimed at tour sound, tracking and worship. For a wider look at cleanup tools, including browser-based ones, see our roundup of the best AI audio cleanup tools in 2026.

iZotope RX 12 Dialogue Isolate: The Post-Production Route

RX 12 is iZotope’s audio repair suite. KVR Audio reported its release on May 3, 2026, and as of October 2026 it’s the current version (12.0.0 on KVR’s RX listing). Dialogue Isolate is its voice-separation tool. iZotope says it was “upgraded with state-of-the-art neural nets for finer accuracy across both offline and real-time modes,” and pitches it at speech for TV, film and podcasts as well as vocals in music. Like Voxis, it targets noise and reverb together: iZotope’s wording is recordings “buried under noise and reverb.”

Its advantage is that voice isolation is one step in a full repair workflow, not the whole product. RX 12 Standard includes Dialogue Isolate both as a plug-in and as a module in the standalone editor, next to De-reverb, Mouth De-click, De-plosive, Breath Control, De-ess, Spectral De-noise, Spectral Repair and Loudness Control. A typical podcast edit needs several of those on the same file. RX 12 also added Stems View, which can split a recording into stems using Dialogue Isolate, Music Rebalance or (in Advanced) Scene Rebalance, so you can process the voice separately before summing it back.

The edition matters. On the RX 12 Advanced page, iZotope says Advanced adds a high-quality offline mode and multi-band processing to Dialogue Isolate. Advanced also has Scene Rebalance, which adjusts dialogue, music and effects levels in a finished mix, plus Dialogue Contour and Trim Silence. For a video editor handed a stereo mix with music under the dialogue, Scene Rebalance is the tool Voxis has no answer to.

Video and post hosts get named support. iZotope lists Adobe Premiere Pro 2026, DaVinci Resolve 19 and Adobe Audition 2026 among its confirmed hosts, alongside Pro Tools 2025 and Reaper 7. Formats are AU, AAX, AAX AudioSuite and VST3, all 64-bit only, and KVR notes that VST2 is no longer supported, which matters if an older editor only loads VST2.

Best for: Podcast editors and video editors working on recorded dialogue, where processing can run offline and the voice is only one of several problems in the file. Also anyone who needs to pull dialogue out of a mix that already contains music and effects (Advanced).

Where it falls short: For live use, the problem is what iZotope doesn’t publish. Its RX 12 product pages describe a real-time mode for Dialogue Isolate but give no latency figure, so you can’t plan a monitored signal chain around it the way you can with Voxis’s stated sub-10 ms. The two most useful Dialogue Isolate upgrades (the high-quality offline mode and multi-band processing) sit behind the $1,399 Advanced edition. System support is narrower than many studio machines: macOS Sonoma 14.7, Sequoia 15.7 or Tahoe 26.2, and Windows 10 (22H2) or Windows 11 (24H2). The RX 12 Advanced trial runs only 10 days, and export is disabled while it runs.

Pricing: RX 12 Standard costs $399 and RX 12 Advanced $1,399. RX 12 Elements ($99) doesn’t include Dialogue Isolate. Owners of RX 11 Standard pay $129 to move to RX 12 Standard, and owners of RX 11 Advanced pay $269 to move to RX 12 Advanced, according to KVR’s release report. Authorization is by iLok (USB or cloud) or machine-based through the iZotope Product Portal. Our iZotope RX 12 review covers the rest of the suite module by module.

Voxis vs RX 12: 7 Real-Time Voice Isolation Criteria Compared

No listening tests were run for this article, so there’s no “sounds cleaner” verdict here. Each winner follows from what CEDAR and iZotope document.

1. Latency for live and monitored use

Winner: Voxis. CEDAR states less than 10 ms. iZotope publishes no latency for real-time Dialogue Isolate. When a host or guest hears their own processed voice, a documented low figure is the thing you need, and only Voxis gives one.

2. Offline quality options for post-production

Winner: RX 12 Advanced. It has an offline mode iZotope calls high-quality, plus multi-band processing, and Standard and Advanced both run Dialogue Isolate as a module in the standalone editor as well as a plug-in. Voxis is a real-time plug-in only.

3. Price for voice isolation alone

Winner: Voxis. £199 plus tax (KVR lists $269) against $399 for the cheapest RX edition with Dialogue Isolate. The exception is an RX 11 Standard owner, for whom the $129 upgrade to RX 12 Standard costs less than Voxis.

4. Everything else in the box

Winner: RX 12. Even Standard surrounds Dialogue Isolate with the rest of an 18-plug-in suite plus the standalone editor, covering clicks, plosives, breaths, sibilance and loudness. Voxis does one thing.

5. Dialogue buried in music and effects

Winner: RX 12 Advanced. Scene Rebalance adjusts dialogue, music and effects separately, and Stems View splits a file before processing. CEDAR documents Voxis for background noise and reverb and says nothing about separating a voice from a music bed.

6. Documented video and post-production host support

Winner: RX 12. iZotope names Premiere Pro 2026, DaVinci Resolve 19 and Audition 2026 as confirmed hosts. CEDAR says Voxis works in all major audio and AV hosts that support AAX, AU or VST3 but doesn’t name any.

7. Trying before you buy

Winner: Voxis. 14 days against 10, and iZotope’s trial page says export is disabled during the RX 12 Advanced trial, so you can audition but not deliver.

RX 12 takes four of the seven and Voxis three. The split follows the timing question: Voxis wins the criteria that matter while audio is happening, RX 12 wins the ones that matter after it’s recorded.

Using Both: Clean Live, Then Repair in the Edit

For a show that streams live and then publishes an edited episode, the two don’t compete. Voxis sits on the microphone channels during the live show or remote recording, so hosts and guests hear clean audio and the recording starts cleaner. RX 12 Standard then handles the edit: the clicks, plosives and breaths Voxis doesn’t touch, and a second, offline Dialogue Isolate pass on any segment that still needs it. If you’re only ever editing recordings, skip Voxis. If you’re only ever live, skip RX.

Once the voice is clean, the next steps are mix decisions rather than repair. Our guides on how to EQ vocals and fixing muddy vocals apply to spoken voice too, and the guide to LUFS and true peak for streaming covers the loudness side of delivery.

Which Real-Time Voice Isolation Tool Should You Choose in 2026?

You stream live or record remote guests

Voxis. It’s the only one of the two with a stated latency low enough to plan a monitored chain around, and at £199 plus tax it costs less than RX 12 Standard. Use the 14-day trial in your actual streaming or recording software before buying.

You edit recorded podcasts

RX 12 Standard. Dialogue Isolate is there when the room is bad, and the rest of the suite handles the problems voice isolation can’t: mouth clicks, plosives, breaths and sibilance. Owners of RX 11 Standard can upgrade for $129.

You cut video in Premiere Pro or DaVinci Resolve

RX 12. iZotope names both editors as confirmed hosts. Choose Advanced ($1,399) if your projects include finished mixes where dialogue sits under music, because Scene Rebalance and the high-quality offline Dialogue Isolate mode are Advanced-only. Otherwise Standard covers interview and location dialogue.

You need something cheap that works in real time

Neither tool is cheap, but RX 12 Elements ($99) includes Voice De-noise, which iZotope describes as a zero-latency de-noiser, plus De-reverb. iZotope sells it as a dialogue de-noiser rather than an isolation tool, so treat it as the lighter option for steady background noise rather than a stand-in for Voxis or Dialogue Isolate. For other approaches, our lists of the best AI vocal extractors and AI stem separation tools cover offline voice separation, and the best AI vocal plugins cover the processing that comes after cleanup.

How This Comparison Was Put Together

Every spec and price comes from CEDAR’s Voxis, VoicEX 2, ScreenVox, StageVox and shop pages, iZotope’s RX 12 Elements, Standard and Advanced product pages and trial page, and KVR Audio’s release reports for Voxis (August 27, 2026) and RX 12 (May 3, 2026). KVR is the source for Voxis’s dollar and euro prices, the RX 11 upgrade prices and RX 12’s authorization options. iZotope’s RX 12 manual couldn’t be read for this article, so Dialogue Isolate’s individual controls aren’t described here. Nothing in this comparison comes from hands-on use or listening tests, so it compares documented features and fit, not sound quality. The trials are the way to judge that on your own recordings. For where these tools sit among AI tools for music, see our best AI mixing plugins guide.

Frequently Asked Questions

A note on freshness: prices, versions and specs were verified on October 12, 2026. Voxis is new, so CEDAR may add a manual, more host details or non-GBP pricing, and iZotope updates RX and runs sales regularly. Check CEDAR’s and iZotope’s sites for current prices and system requirements before you buy.