{"schema":"record/v1","id":"art_01M5MASNNGMWFVQQ0FPM18FDQR","type":"article","revision":1,"etag":"\"r1.s0\"","title":"What does the ACB text-to-speech guideline require when audio description is synthetic, and what do Netflix v2.5, ACB 2009 and the HTML spec say or leave unsaid about synthetic voices?","summary":"ACB's TTS guideline is a policy statement: human-voiced AD is preferred, TTS only when human narration is not feasible and never purely to save cost, with human review (including blind and low-vision professionals), audience disclosure and quality targets (48 kHz/24-bit preferred). The Netflix v2.5 page does not mention synthetic voices; ACB 2009 gives 160 wpm as an acceptable pace.","status":"active","body":{"text":"ACB's TTS guideline is a policy statement: human-voiced AD is preferred, TTS only when human narration is not feasible and never purely to save cost, with human review (including blind and low-vision professionals), audience disclosure and quality targets (48 kHz/24-bit preferred). The Netflix v2.5 page does not mention synthetic voices; ACB 2009 gives 160 wpm as an acceptable pace.\n\nCurator qualifications: Guides read 2026-10-22; no description written or voiced. Undated ACB page; HTML track kind=descriptions (S16) from producer reading.\n\nLimitations: Guides read 2026-10-22; no description written or voiced.\n\nEvidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.","citations":[{"url":"https://adp.acb.org/docs/ADP_Standards.pdf","note":"ACB Guidelines for Use of Text-to-Speech (bytes equal pin); Netflix AD Style Guide v2.5, whole page; ACB 2009 PDF L507"},{"url":"https://html.spec.whatwg.org/multipage/media.html","note":"ACB Guidelines for Use of Text-to-Speech (bytes equal pin); Netflix AD Style Guide v2.5, whole page; ACB 2009 PDF L507"},{"url":"https://www.acb.org/guidelines-for-use-of-text-to-speech-tts","note":"ACB Guidelines for Use of Text-to-Speech (bytes equal pin); Netflix AD Style Guide v2.5, whole page; ACB 2009 PDF L507"},{"url":"https://partnerhelp.netflixstudios.com/hc/en-us/articles/215510667-Audio-Description-Style-Guide-v2-5","note":"ACB Guidelines for Use of Text-to-Speech (bytes equal pin); Netflix AD Style Guide v2.5, whole page; ACB 2009 PDF L507"}]},"categories":["T10","T13"],"tags":[],"language":"en","visibility":"public","moderation":{"state":"visible","reason":null},"evidence":{"inspection":"source_inspected","execution":"not_run","review":"unreviewed","review_revision":null,"claims":[{"url":"https://adp.acb.org/docs/ADP_Standards.pdf","claim":"ACB's TTS guideline is a policy statement: human-voiced AD is preferred, TTS only when human narration is not feasible and never purely to save cost, with human review (including blind and low-vision professionals), audience disclosure and quality targets (48 kHz/24-bit preferred). 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The Netflix v2.5 page does not mention synthetic voices; ACB 2009 gives 160 wpm as an acceptable pace.\n\nCurator qualifications: Guides read 2026-10-22; no description written or voiced. Undated ACB page; HTML track kind=descriptions (S16) from producer reading.\n\nLimitations: Guides read 2026-10-22; no description written or voiced.\n\nEvidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.","citations":[{"url":"https://adp.acb.org/docs/ADP_Standards.pdf","note":"ACB Guidelines for Use of Text-to-Speech (bytes equal pin); Netflix AD Style Guide v2.5, whole page; ACB 2009 PDF L507"},{"url":"https://html.spec.whatwg.org/multipage/media.html","note":"ACB Guidelines for Use of Text-to-Speech (bytes equal pin); Netflix AD Style Guide v2.5, whole page; ACB 2009 PDF L507"},{"url":"https://www.acb.org/guidelines-for-use-of-text-to-speech-tts","note":"ACB Guidelines for Use of Text-to-Speech (bytes equal pin); Netflix AD Style Guide v2.5, whole page; ACB 2009 PDF L507"},{"url":"https://partnerhelp.netflixstudios.com/hc/en-us/articles/215510667-Audio-Description-Style-Guide-v2-5","note":"ACB Guidelines for Use of Text-to-Speech (bytes equal pin); Netflix AD Style Guide v2.5, whole page; ACB 2009 PDF L507"}]},"tags":[],"type":"article","links":[],"title":"What does the ACB text-to-speech guideline require when audio description is synthetic, and what do Netflix v2.5, ACB 2009 and the HTML spec say or leave unsaid about synthetic voices?","rights":[{"notes":"Applies to this original summary only, not to the cited sources.","hosting":"permitted","component":"documentation","license_id":null,"modification":"unknown","evidence_urls":[],"model_training":"unknown","redistribution":"permitted"}],"summary":"ACB's TTS guideline is a policy statement: human-voiced AD is preferred, TTS only when human narration is not feasible and never purely to save cost, with human review (including blind and low-vision professionals), audience disclosure and quality targets (48 kHz/24-bit preferred). 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