SenseDefend

Synthetic-media instruments, by article and effective date

Meta AudioSeal, read against Article 50

Meta AudioSeal is a speech watermarking scheme published as research rather than as a product feature. The paper describes a generator and detector trained together so that a mark can be located inside a recording, not merely found in it. As of 2026-09-12.

Finding a mark and locating one are different answersA scheme that reports yes or no for a whole recording answers a narrower question than one that reports which samples carry the mark. For audio that mixes a real voice with a synthesised passage, the second is the question a listener has.Whole-file answerLocalized answerWhat it reportsThis recording carries a markThese samples carry a markPartly edited audioOne verdict for the whole fileThe generated passage can be pointed atWhat it needsA detector run onceA detector trained with the generatorHow this one is publishedNot what the paper describesDescribed as detection to the samplelevelGranularity the article does not ask for, and a ceiling worth recording
Fig. 1 The article reaches content that is generated or manipulated, a phrase that plainly contemplates files which are partly one and partly the other.
What Meta AudioSeal publishes, set against the two duties Article 50 imposes. Recorded 2026-09-12.
PointWhat the vendor's pages state
Article 50(2), machine-readable markingAn embedded speech watermark, detectable down to the sample
Article 50(4), deployer disclosureNot addressed; the publication concerns detection
Who controls itNot addressed in the publication
Stated detection granularityLocalized, down to the sample level

Inclusion rule. Points are the same four for every generator recorded here: the two Article 50 duties, who controls the mark, and whatever the vendor states about it. A point the vendor does not publish is recorded as not documented. Order. Fixed order, identical on every generator page.

1The same point, across every generator recorded

Article 50(2), machine-readable marking: what each vendor statesOne point at a time, every generator side by side, Meta AudioSeal marked. This is a map of what the vendors publish, not a reading of the instrument. Wording in the rows below. Recorded 2026-09-12.Article 50(2), machine-readable marking: what each vendor statesArticle 50(2), machine-readable markingArticle 50(2),machine-readable…Adobe FireflyAdobe Firefly — Article 50(2), machine-readable marking: Content Credentials attached to outputs, indicating AI was usedAlibaba WanAlibaba Wan — Article 50(2), machine-readable marking: Not documented in the API referenceAmazon Nova ReelAmazon Nova Reel — Article 50(2), machine-readable marking: An invisible watermark on all videos, plus credentials from version 1.1ElevenLabsElevenLabs — Article 50(2), machine-readable marking: An inaudible pattern embedded in generated audioGoogle SynthIDGoogle SynthID — Article 50(2), machine-readable marking: An invisible watermark embedded at generationHeyGenHeyGen — Article 50(2), machine-readable marking: Not documented on the vendor's pagesKling AIKling AI — Article 50(2), machine-readable marking: Not documented on the vendor's pagesLTX StudioLTX Studio — Article 50(2), machine-readable marking: Not documented on the vendor's pagesMeta AudioSealMeta AudioSeal — Article 50(2), machine-readable marking: An embedded speech watermark, detectable down to the sampleMicrosoft DesignerMicrosoft Designer — Article 50(2), machine-readable marking: C2PA content credentials on images from the editing featuresMiniMax HailuoMiniMax Hailuo — Article 50(2), machine-readable marking: Not documented in the API referenceOpenAI SoraOpenAI Sora — Article 50(2), machine-readable marking: C2PA metadata on all assetsPikaPika — Article 50(2), machine-readable marking: Not documented on the vendor's pagesRunwayRunway — Article 50(2), machine-readable marking: Not documented on the vendor's pagesSceneMixerSceneMixer — Article 50(2), machine-readable marking: Not documented on the vendor's pagesSynthesiaSynthesia — Article 50(2), machine-readable marking: Not documented on the page this entry reads from
Fig. 2 One point at a time, every generator side by side, Meta AudioSeal marked. This is a map of what the vendors publish, not a reading of the instrument. Wording in the rows below. Recorded 2026-09-12.
Every generator on one point, with Meta AudioSeal marked. Recorded 2026-09-12.
GeneratorArticle 50(2), machine-readable marking
Adobe FireflyContent Credentials attached to outputs, indicating AI was used
Alibaba WanNot documented in the API reference
Amazon Nova ReelAn invisible watermark on all videos, plus credentials from version 1.1
ElevenLabsAn inaudible pattern embedded in generated audio
Google SynthIDAn invisible watermark embedded at generation
HeyGenNot documented on the vendor's pages
Kling AINot documented on the vendor's pages
LTX StudioNot documented on the vendor's pages
Meta AudioSealAn embedded speech watermark, detectable down to the sample
Microsoft DesignerC2PA content credentials on images from the editing features
MiniMax HailuoNot documented in the API reference
OpenAI SoraC2PA metadata on all assets
PikaNot documented on the vendor's pages
RunwayNot documented on the vendor's pages
SceneMixerNot documented on the vendor's pages
SynthesiaNot documented on the page this entry reads from

Inclusion rule. Generators whose own public pages say something about marking. A generator silent on this particular point keeps its row, marked hollow. Order. Alphabetical by generator name.

Article 50(4), deployer disclosure: what each vendor statesOne point at a time, every generator side by side, Meta AudioSeal marked. This is a map of what the vendors publish, not a reading of the instrument. Wording in the rows below. Recorded 2026-09-12.Article 50(4), deployer disclosure: what each vendor statesArticle 50(4), deployer disclosureArticle 50(4),deployer disclosureAdobe FireflyAdobe Firefly — Article 50(4), deployer disclosure: Not addressed; no mark in the frame is describedAlibaba WanAlibaba Wan — Article 50(4), deployer disclosure: A corner mark reading AI Generated, added on requestAmazon Nova ReelAmazon Nova Reel — Article 50(4), deployer disclosure: Not addressed; nothing visible is describedElevenLabsElevenLabs — Article 50(4), deployer disclosure: Not addressed; nothing audible or visible is describedGoogle SynthIDGoogle SynthID — Article 50(4), deployer disclosure: Not addressed; nothing visible is describedHeyGenHeyGen — Article 50(4), deployer disclosure: A visible mark, removable by planKling AIKling AI — Article 50(4), deployer disclosure: A visible brand watermark on outputLTX StudioLTX Studio — Article 50(4), deployer disclosure: A visible mark, removable by planMeta AudioSealMeta AudioSeal — Article 50(4), deployer disclosure: Not addressed; the publication concerns detectionMicrosoft DesignerMicrosoft Designer — Article 50(4), deployer disclosure: Not addressed; nothing visible is describedMiniMax HailuoMiniMax Hailuo — Article 50(4), deployer disclosure: An AIGC label watermark, added only when requestedOpenAI SoraOpenAI Sora — Article 50(4), deployer disclosure: A visible moving watermark on app and site downloadsPikaPika — Article 50(4), deployer disclosure: A visible mark, removable by planRunwayRunway — Article 50(4), deployer disclosure: A visible mark on free-plan output, by omissionSceneMixerSceneMixer — Article 50(4), deployer disclosure: A visible watermark on composited episodes, on by defaultSynthesiaSynthesia — Article 50(4), deployer disclosure: A visible mark on Basic-plan videos and on test-mode output
Fig. 3 One point at a time, every generator side by side, Meta AudioSeal marked. This is a map of what the vendors publish, not a reading of the instrument. Wording in the rows below. Recorded 2026-09-12.
Every generator on one point, with Meta AudioSeal marked. Recorded 2026-09-12.
GeneratorArticle 50(4), deployer disclosure
Adobe FireflyNot addressed; no mark in the frame is described
Alibaba WanA corner mark reading AI Generated, added on request
Amazon Nova ReelNot addressed; nothing visible is described
ElevenLabsNot addressed; nothing audible or visible is described
Google SynthIDNot addressed; nothing visible is described
HeyGenA visible mark, removable by plan
Kling AIA visible brand watermark on output
LTX StudioA visible mark, removable by plan
Meta AudioSealNot addressed; the publication concerns detection
Microsoft DesignerNot addressed; nothing visible is described
MiniMax HailuoAn AIGC label watermark, added only when requested
OpenAI SoraA visible moving watermark on app and site downloads
PikaA visible mark, removable by plan
RunwayA visible mark on free-plan output, by omission
SceneMixerA visible watermark on composited episodes, on by default
SynthesiaA visible mark on Basic-plan videos and on test-mode output

Inclusion rule. Generators whose own public pages say something about marking. A generator silent on this particular point keeps its row, marked hollow. Order. Alphabetical by generator name.

Who controls it: what each vendor statesOne point at a time, every generator side by side, Meta AudioSeal marked. This is a map of what the vendors publish, not a reading of the instrument. Wording in the rows below. Recorded 2026-09-12.Who controls it: what each vendor statesWho controls itAdobe FireflyAdobe Firefly — Who controls it: Not addressed; the product page describes no removal stepAlibaba WanAlibaba Wan — Who controls it: The caller: a boolean that defaults to falseAmazon Nova ReelAmazon Nova Reel — Who controls it: No removal documentedElevenLabsElevenLabs — Who controls it: No removal documentedGoogle SynthIDGoogle SynthID — Who controls it: No removal documentedHeyGenHeyGen — Who controls it: The plan: removal listed on the $29 Creator and $49 Pro tiersKling AIKling AI — Who controls it: The membership: removal is listed as a paid benefitLTX StudioLTX Studio — Who controls it: The plan: no watermarking listed from Lite upwardMeta AudioSealMeta AudioSeal — Who controls it: Not addressed in the publicationMicrosoft DesignerMicrosoft Designer — Who controls it: Not addressed in the FAQMiniMax HailuoMiniMax Hailuo — Who controls it: The caller: a request parameter that defaults to falseOpenAI SoraOpenAI Sora — Who controls it: Not stated here; the visible mark follows the download routePikaPika — Who controls it: The plan: watermark-free download from $28 Pro upwardRunwayRunway — Who controls it: The plan: watermark-free output listed on paid plansSceneMixerSceneMixer — Who controls it: A settings switch, with no plan named beside itSynthesiaSynthesia — Who controls it: The plan, and separately an API test flag
Fig. 4 One point at a time, every generator side by side, Meta AudioSeal marked. This is a map of what the vendors publish, not a reading of the instrument. Wording in the rows below. Recorded 2026-09-12.
Every generator on one point, with Meta AudioSeal marked. Recorded 2026-09-12.
GeneratorWho controls it
Adobe FireflyNot addressed; the product page describes no removal step
Alibaba WanThe caller: a boolean that defaults to false
Amazon Nova ReelNo removal documented
ElevenLabsNo removal documented
Google SynthIDNo removal documented
HeyGenThe plan: removal listed on the $29 Creator and $49 Pro tiers
Kling AIThe membership: removal is listed as a paid benefit
LTX StudioThe plan: no watermarking listed from Lite upward
Meta AudioSealNot addressed in the publication
Microsoft DesignerNot addressed in the FAQ
MiniMax HailuoThe caller: a request parameter that defaults to false
OpenAI SoraNot stated here; the visible mark follows the download route
PikaThe plan: watermark-free download from $28 Pro upward
RunwayThe plan: watermark-free output listed on paid plans
SceneMixerA settings switch, with no plan named beside it
SynthesiaThe plan, and separately an API test flag

Inclusion rule. Generators whose own public pages say something about marking. A generator silent on this particular point keeps its row, marked hollow. Order. Alphabetical by generator name.

2Locating a mark and finding one are different questions

Most marking schemes answer yes or no for a whole file. This one is described as detecting down to the sample level, which answers a different question: which part of this recording was generated. For any audio that mixes a real voice with a synthesised passage, that is the question a listener would actually want settled.

The article does not ask for that granularity, and recording it here is not a claim that it is required. It is worth a row because it shows the ceiling of what a marking scheme can report, and because the duty is written around content that is generated or manipulated, a phrase that plainly contemplates files which are partly one and partly the other.

3A paper is a different kind of source from a pricing page

Every other entry in this record is read from material written to sell or to support a product. This one is read from a publication written to be reviewed, which changes what the sentences are trying to do: they describe a method and the trade-off it makes, and they claim performance against measurements rather than against competitors.

The trade-off named is the interesting part for a compliance reader. A mark has to change the audio enough for a detector to recover it and little enough that a listener does not notice, and the paper puts a loss function shaped by how hearing masks sound at the centre of that. The marking paragraph asks for solutions that are effective and robust as far as is technically feasible, and a published account of where the difficulty sits is closer to that wording than a feature line can get.

4Columns filed separately for this entry

Four words is all a row holds. Where a cell read off Meta AudioSeal's research publication needs the sentence behind it, the kind of document that sentence sits in and the limit on what it proves, it is filed on its own page below.

  • AudioSeal on marking speech — The publication describes a generator and detector trained jointly with a localization loss, for detection down to the sample level.
  • AudioSeal on detection granularity — The publication presents localized detection at sample level, with a perceptual loss inspired by auditory masking for imperceptibility.
  • AudioSeal on masking and quality — The publication describes a perceptual loss inspired by auditory masking, presented as achieving better imperceptibility for the embedded mark.

5Sources

Read from the research publication at ai.meta.com on 2026-09-12. The clause itself is recorded on the Article 50 page, and every generator on the same points is in the table.

  • Meta AudioSeal (ai.meta.com)
    A generator and detector architecture trained jointly with a localization loss, for detection down to the sample levela speech watermarking schemeMeta AI, research publication / recorded 2026-09-22
  • Meta AudioSeal
    A perceptual loss inspired by auditory masking, presented as achieving better imperceptibilitythe stated quality trade-offMeta AI, research publication / recorded 2026-09-22