An AI-powered transcription tool that converts video audio into accurate, time-synced SRT or VTT subtitle tracks.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install audio-to-subtitle-generator
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install audio-to-subtitle-generator using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is Audio to Subtitle Generator?
The Audio to Subtitle Generator is a professional-grade transcription skill designed to bridge the gap between raw video content and accessible media. By leveraging the NemoVideo cloud backend, this skill analyzes audio waveforms to detect speech, segment dialogue, and generate precise timestamps. As a key component of the Openclaw Skills ecosystem, it allows developers and creators to automate captioning workflows without manual typing or expensive third-party services.
This skill is built for high-scale environments where speed and accuracy are paramount. Whether you are processing a short social media clip or a long-form documentary, the audio-to-subtitle-generator ensures that every word is captured and synchronized perfectly. It handles various video formats and provides output ready for immediate use in professional editing suites or web-based video players.
Audio to Subtitle Generator Use Cases
- Automating captions for YouTube, TikTok, and social media to increase engagement for sound-off viewers.
- Ensuring ADA and WCAG compliance for educational and e-learning video content.
- Transcribing legal depositions, medical consultations, or corporate town halls with high precision.
- Generating searchable transcripts for journalists and podcast producers from recorded interviews.
- Streamlining multilingual content localization by providing a base subtitle layer for translation.
How Audio to Subtitle Generator Works
- The user provides a video file or URL which is uploaded to the NemoVideo cloud infrastructure.
- A secure session is established using the NEMO_TOKEN to manage the transcription task.
- The skill utilizes Server-Sent Events (SSE) to monitor the speech-to-text processing in real-time.
- Audio waveforms are analyzed to identify speaker transitions and segment the text into readable lines.
- The final subtitle data is mapped into a structured draft and exported as an SRT or VTT file for the user.
Audio to Subtitle Generator Setup
To get started with this skill, ensure you have your NemoVideo credentials configured. The skill primarily looks for an environment variable to authenticate requests.
# Set your NemoVideo API token
export NEMO_TOKEN="your_api_token_here"
# The skill also manages configuration in:
# ~/.config/nemovideo/client_id
On first run, if no token is found, the skill will automatically generate an anonymous token with 100 free credits to help you explore the capabilities of Openclaw Skills.
Audio to Subtitle Generator Data Schema & Taxonomy
The skill manages transcription data through a specific metadata taxonomy. Below is the mapping for the internal draft structure:
| Key | Mapping | Description |
|---|---|---|
| t | tracks | Contains all media and text layers |
| tt | track type | 0 for video, 1 for audio, 7 for text/subtitles |
| sg | segments | Individual time-coded blocks of text |
| d | duration | Length of the segment in milliseconds |
| m | metadata | Additional info like speaker IDs or language tags |
Audio to Subtitle Generator Advanced Features
- Support for a wide array of formats including mp4, mov, avi, webm, mkv, and various audio codecs.
- Real-time heartbeat monitoring to maintain long-running transcription sessions up to 15 minutes.
- Customizable character-per-line limits to meet specific broadcast or platform display standards.
- Seamless integration with other Openclaw Skills for automated media processing pipelines.
- Automated credit balance checks and session state polling to ensure reliable delivery of subtitle files.
SKILL.md
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