Private AI Caption & Voiceovers

Job ID: 40066438

Budget: $10 – $30 USD

I’m building a private-use web application where I can upload any entertainment video and decide, on a per-upload basis, whether I:

1. let the system auto-generate captions,
2. type my own custom captions, or
3. blend the two (start with AI, then tweak).

Once the captions are locked in, the same interface should synthesize a voice-over that matches the final text. I want several voice choices—male, female, different tones—so I can pick the one that best suits each video.

Core workflow I’m envisioning
• Secure video upload (MP4, MOV and similar)
• Fast AI transcription → time-synced captions displayed in an editable timeline
• Inline editor to review / rewrite lines before saving
• Text-to-speech engine that renders the finished script into audio, with a simple dropdown to switch voices
• Option to download SRT/VTT plus the rendered voice track, or burn captions directly onto the video

Tech is flexible: Whisper, Google Speech-to-Text, AWS Transcribe, or a comparable ASR for captions; Amazon Polly, ElevenLabs, or any high-quality TTS for the voice-over are all fine as long as the results sound natural.

Acceptance is straightforward—if I can consistently upload a clip, refine the auto captions, choose a voice, and export the final assets without glitches, the job is done. The point of this project is to create good captioning and voiceovers for youtube shorts. Feel free to suggest any additional quality-of-life features, but the flow above is the minimum I need live.