{"observation":{"id":"0541dbd9-0ffd-4cd8-a40f-dee03b375d7d","tool":"synthesia","tool_name":"Synthesia","criterion":"output-quality-export","criterion_name":"Output Quality & Export","criterion_definition":"Is the final exported video clean, downloadable, and production-ready, and are there watermarks or credit restrictions?","criterion_evidence_type":"transformation","criterion_rank_role":"context","criterion_rank_role_reason":"A clean export and watermark-free download matter for usability, but they do not determine whether the tool can translate, clone voice, and lip-sync well. (3 of 3 judges)","scenario":"hindi-vlog-style-talking-head-hindi-english","scenario_name":"Hindi vlog-style talking head (Hindi → English)","group_tag":"video-translation-voice-clone-lip-sync","scenario_description":"A casual Hindi talking-head/vlog-style video used to test English dubbing on informal speech, Hinglish-like phrasing, speaker personality preservation, and lip sync under natural creator-style delivery.","modality":"video","input_text":null,"input_artifact_refs":[{"alt":null,"url":"https://cdn.futuresmart.ai/public/aidemos/c414bbbfcd2a49faa9b162d10cd64c2f.mp4?v=1","role":"input","filename":"Free Copyright Stock Videos Images And Music.publer.com (online-video-cutter.com).mp4"}],"stresses":["Informal Hindi speech transcription","Hindi-to-English translation of casual phrasing","Voice cloning for conversational creator tone","Handling of slang/Hinglish-style content","Lip-sync stability during expressive speech"],"verdict":"failed","score":null,"score_total":null,"note":"The export also has a brief text-clipping glitch: \"STOCK\" renders as \"CK\" for about half a second before self-correcting.","evidence_state":"verified","source":null,"artifacts":[{"url":"https://cdn.futuresmart.ai/public/aidemos/f7c9aa4fb1e04fe0920f9ff5c7adc5dc.mp4?v=1","role":"context","alt":null},{"url":"https://cdn.futuresmart.ai/public/aidemos/6a84c318da3b498b9c8ce90e1df33a88.png?v=1","role":"output","alt":null}],"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":"input-and-output","input":{"state":"files","text":null,"files":[{"url":"https://cdn.futuresmart.ai/public/aidemos/c414bbbfcd2a49faa9b162d10cd64c2f.mp4?v=1","filename":"Free Copyright Stock Videos Images And Music.publer.com (online-video-cutter.com).mp4","alt":"Hindi vlog-style talking head (Hindi → English)","role":"input"}],"modality":"video","stresses":["Informal Hindi speech transcription","Hindi-to-English translation of casual phrasing","Voice cloning for conversational creator tone","Handling of slang/Hinglish-style content","Lip-sync stability during expressive speech"]},"tool_page_slug":"synthesia","tool_url":"https://aidemos.com/tools/synthesia","permalink":"https://aidemos.com/evidence/0541dbd9-0ffd-4cd8-a40f-dee03b375d7d","api_url":"https://ai.aidemos.com/v1/observations/0541dbd9-0ffd-4cd8-a40f-dee03b375d7d"},"peers":[{"id":"1f54d5e6-129d-4523-9282-aeca5368f4ed","tool":"akool","tool_name":"Akool","verdict":"mixed","score":null,"score_total":null,"note":"The export was visually clean with no color/rendering glitches, but it still carries AKOOL watermark branding.","artifact_count":1,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/211f00ca9ecd40e2a76e2b44dbdfd903.mp4?v=1","evidence_url":"https://aidemos.com/evidence/1f54d5e6-129d-4523-9282-aeca5368f4ed"},{"id":"43980cd5-8957-43a7-9770-76a36e296e16","tool":"dubverse","tool_name":"Dubverse","verdict":"struggled","score":null,"score_total":null,"note":"The clip exports successfully, but the output artifact shows a small visible sync.so watermark, so the final video is not clean production-ready output.","artifact_count":0,"thumbnail":null,"evidence_url":"https://aidemos.com/evidence/43980cd5-8957-43a7-9770-76a36e296e16"},{"id":"ad26538c-7e50-43ac-84c8-39acd02c36cf","tool":"elevenlabs","tool_name":"ElevenLabs","verdict":"failed","score":null,"score_total":null,"note":"The exported English vlog video is not clean because the ElevenLabs dubbing watermark remains in the lower-right throughout.","artifact_count":2,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/eea2f2575f224726b9b458c6e930c7f7.mp4?v=1","evidence_url":"https://aidemos.com/evidence/ad26538c-7e50-43ac-84c8-39acd02c36cf"},{"id":"cccf9d1e-f508-4b53-a9ab-49b6cabef2f5","tool":"rask-ai","tool_name":"Rask AI","verdict":"mixed","score":null,"score_total":null,"note":"The vlog export remains intact with no corruption or garbling, but it is watermarked 'TRANSLATED BY RASK' and was only reviewable via screen recording on the free tier.","artifact_count":1,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/36abe2a48a854952a3590e0ecdc03314.mp4?v=1","evidence_url":"https://aidemos.com/evidence/cccf9d1e-f508-4b53-a9ab-49b6cabef2f5"}],"other_criteria":[{"id":"01ff1594-c458-4ddb-8631-bfaf5e957268","criterion":"lip-sync-accuracy","criterion_name":"Lip Sync Accuracy","rank_role":"decisive","verdict":"worked","score":null,"score_total":null,"note":"The report says the vlog dub's timing held up consistently with the source, so the mouth timing looks visually stable in this run.","artifact_count":1,"evidence_url":"https://aidemos.com/evidence/01ff1594-c458-4ddb-8631-bfaf5e957268"},{"id":"d779c277-1fe2-4421-a1f0-528c7920c9d3","criterion":"translation-accuracy","criterion_name":"Translation Accuracy","rank_role":"decisive","verdict":"mixed","score":null,"score_total":null,"note":"Translation is partial in the vlog run: pre-existing English branding text is preserved correctly, but word-emphasis captions like \"HAK\" and \"MAIN\" remain untranslated in Roman script.","artifact_count":5,"evidence_url":"https://aidemos.com/evidence/d779c277-1fe2-4421-a1f0-528c7920c9d3"}],"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":[{"id":"1f54d5e6-129d-4523-9282-aeca5368f4ed","tool":"akool","tool_name":"Akool","verdict":"mixed","score":null,"score_total":null,"note":"The export was visually clean with no color/rendering glitches, but it still carries AKOOL watermark branding."},{"id":"43980cd5-8957-43a7-9770-76a36e296e16","tool":"dubverse","tool_name":"Dubverse","verdict":"struggled","score":null,"score_total":null,"note":"The clip exports successfully, but the output artifact shows a small visible sync.so watermark, so the final video is not clean production-ready output."},{"id":"ad26538c-7e50-43ac-84c8-39acd02c36cf","tool":"elevenlabs","tool_name":"ElevenLabs","verdict":"failed","score":null,"score_total":null,"note":"The exported English vlog video is not clean because the ElevenLabs dubbing watermark remains in the lower-right throughout."},{"id":"cccf9d1e-f508-4b53-a9ab-49b6cabef2f5","tool":"rask-ai","tool_name":"Rask AI","verdict":"mixed","score":null,"score_total":null,"note":"The vlog export remains intact with no corruption or garbling, but it is watermarked 'TRANSLATED BY RASK' and was only reviewable via screen recording on the free tier."}]}