{"observation":{"id":"b5a31752-2da6-425a-869b-54e1e2ab4038","tool":"dubverse","tool_name":"Dubverse","criterion":"lip-sync-accuracy","criterion_name":"Lip Sync Accuracy","criterion_definition":"Does the dubbed audio visually match lip movements in the original video?","criterion_evidence_type":"transformation","criterion_rank_role":"decisive","criterion_rank_role_reason":"The ranking is specifically about lip sync, so visual alignment of speech to mouth movement is a core success criterion. (3 of 3 judges)","scenario":null,"scenario_name":null,"group_tag":null,"scenario_description":null,"modality":null,"input_text":null,"input_artifact_refs":[],"stresses":[],"verdict":"mixed","score":null,"score_total":null,"note":"Lip sync is good on some inputs, described as more precise in one case and good for slow to medium speech, but it becomes weaker on fast speech with slight delay, sync inconsistencies, and slightly off audio-video alignment.","evidence_state":"observed","source":"aggregate-synthesis","artifacts":[],"run_id":"ec1dd100-6af8-4f49-8f19-b78492702b14","study_title":"Translate Videos with Voice Cloning and Lip Sync Using AI","study_kind":"generation","research_task":"86b96dfpf","tested_at":null,"completeness":"no-artifact","input":{"state":"cross-scenario","text":null,"files":[],"modality":null,"stresses":[]},"tool_page_slug":"dubverse","tool_url":"https://aidemos.com/tools/dubverse","permalink":"https://aidemos.com/evidence/b5a31752-2da6-425a-869b-54e1e2ab4038","api_url":"https://ai.aidemos.com/v1/observations/b5a31752-2da6-425a-869b-54e1e2ab4038"},"peers":[],"other_criteria":[],"appears_in":[{"page_type":"ranking","slug":"video-translation-tools","title":"Best AI Tools for Video Translation with Voice Cloning and Lip Sync","url":"https://aidemos.com/best/video-translation-tools","binding":"run"},{"page_type":"ranking","slug":"ai-video-dubbing-tools","title":"Best AI Tools to Translate Videos with Voice Cloning and Lip Sync","url":"https://aidemos.com/best/ai-video-dubbing-tools","binding":"study"}],"same_scenario":[]}