{"observation":{"id":"947419b9-c6ee-4fad-99f0-a8f5f3e577a1","tool":"d-id","tool_name":"D-ID","criterion":"voice-cloning-quality","criterion_name":"Voice Cloning Quality","criterion_definition":"Does the dubbed voice sound natural, and does it match the original speaker's energy, tone, and style?","criterion_evidence_type":"transformation","criterion_rank_role":"decisive","criterion_rank_role_reason":"Natural-sounding voice matching is central to successful voice cloning, which is a core part of this ranking. (3 of 3 judges)","scenario":"fitness-instructor-short-english-hindi","scenario_name":"Fitness instructor short (English → Hindi)","group_tag":"video-translation-voice-clone-lip-sync","scenario_description":"A short fitness/coaching video with energetic single-speaker English speech, used to test whether tools can translate into Hindi while preserving fast delivery, motivational tone, and original-face lip sync.","modality":"video","input_text":null,"input_artifact_refs":[{"alt":null,"url":"https://cdn.futuresmart.ai/public/aidemos/e0437017b0894e3486f5a2b2015a4da6.mp4?v=1","role":"input","filename":"Input 1 Fitness Video (online-video-cutter.com).mp4"}],"stresses":["Fast, energetic speech transcription","Tone preservation for motivational fitness content","English-to-Hindi translation quality","Lip-sync accuracy on a moving face","End-to-end dubbing workflow automation"],"verdict":"mixed","score":null,"score_total":null,"note":"The Hindi voice is clear, but it does not clone the original speaker and instead uses an AI-avatar voice.","evidence_state":"observed","source":null,"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":"input-only","input":{"state":"files","text":null,"files":[{"url":"https://cdn.futuresmart.ai/public/aidemos/e0437017b0894e3486f5a2b2015a4da6.mp4?v=1","filename":"Input 1 Fitness Video (online-video-cutter.com).mp4","alt":"Fitness instructor short (English → Hindi)","role":"input"}],"modality":"video","stresses":["Fast, energetic speech transcription","Tone preservation for motivational fitness content","English-to-Hindi translation quality","Lip-sync accuracy on a moving face","End-to-end dubbing workflow automation"]},"tool_page_slug":"d-id","tool_url":"https://aidemos.com/tools/d-id","permalink":"https://aidemos.com/evidence/947419b9-c6ee-4fad-99f0-a8f5f3e577a1","api_url":"https://ai.aidemos.com/v1/observations/947419b9-c6ee-4fad-99f0-a8f5f3e577a1"},"peers":[{"id":"e720e1c4-db0f-4df3-b64f-8cb03c8d7d17","tool":"dubverse","tool_name":"Dubverse","verdict":"mixed","score":null,"score_total":null,"note":"The dubbed voice is clean with minimal distortion, but it under-shoots the energetic fitness tone and has limited emotional intensity.","artifact_count":1,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/e120792604b24c0ab8fe30690529029b.mp4?v=1","evidence_url":"https://aidemos.com/evidence/e720e1c4-db0f-4df3-b64f-8cb03c8d7d17"},{"id":"65a58b92-6395-44f2-afc7-abdc514222be","tool":"elevenlabs","tool_name":"ElevenLabs","verdict":"worked","score":null,"score_total":null,"note":"The dubbed Hindi voice sounded very high-quality, natural, human-like, and expressive, with strong fit for fitness instruction.","artifact_count":1,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/f06ae0bd183d48fe8368c15db83f1951.mp4?v=1","evidence_url":"https://aidemos.com/evidence/65a58b92-6395-44f2-afc7-abdc514222be"},{"id":"50158125-8ec1-4a0e-bdbf-d8b4478af98c","tool":"sync-labs","tool_name":"Sync Labs","verdict":"mixed","score":null,"score_total":null,"note":"The dubbed voice is decent but still sounds less natural than a stronger reference voice such as ElevenLabs.","artifact_count":1,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/855a96949c7f487784b76fd99a758dcb.mp4?v=1","evidence_url":"https://aidemos.com/evidence/50158125-8ec1-4a0e-bdbf-d8b4478af98c"}],"other_criteria":[{"id":"f20300e9-63fd-4fd5-bbc7-8a8b015f31a0","criterion":"lip-sync-accuracy","criterion_name":"Lip Sync Accuracy","rank_role":"decisive","verdict":"failed","score":null,"score_total":null,"note":"Lip sync is only aligned to the avatar output and not to the original live-action footage.","artifact_count":0,"evidence_url":"https://aidemos.com/evidence/f20300e9-63fd-4fd5-bbc7-8a8b015f31a0"},{"id":"649df64b-e358-4034-a64e-9fcff92c161f","criterion":"translation-accuracy","criterion_name":"Translation Accuracy","rank_role":"decisive","verdict":"worked","score":null,"score_total":null,"note":"It produces an acceptable Hindi translation of the source speech.","artifact_count":0,"evidence_url":"https://aidemos.com/evidence/649df64b-e358-4034-a64e-9fcff92c161f"}],"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":"e720e1c4-db0f-4df3-b64f-8cb03c8d7d17","tool":"dubverse","tool_name":"Dubverse","verdict":"mixed","score":null,"score_total":null,"note":"The dubbed voice is clean with minimal distortion, but it under-shoots the energetic fitness tone and has limited emotional intensity."},{"id":"65a58b92-6395-44f2-afc7-abdc514222be","tool":"elevenlabs","tool_name":"ElevenLabs","verdict":"worked","score":null,"score_total":null,"note":"The dubbed Hindi voice sounded very high-quality, natural, human-like, and expressive, with strong fit for fitness instruction."},{"id":"50158125-8ec1-4a0e-bdbf-d8b4478af98c","tool":"sync-labs","tool_name":"Sync Labs","verdict":"mixed","score":null,"score_total":null,"note":"The dubbed voice is decent but still sounds less natural than a stronger reference voice such as ElevenLabs."}]}