> For the complete documentation index, see [llms.txt](https://docs.maiagent.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.maiagent.ai/maiagent-user-guide/maiagent-user-guide-en/meeting-records/offline-transcription.md).
# Offline Meeting Transcription
Offline mode lets you upload pre-recorded audio files. The system performs high-accuracy transcription and speaker identification, generating a transcript with timeline markers.
## Supported Audio Formats
| Format | Extension |
| ------ | --------- |
| MP3 | `.mp3` |
| MP4 | `.mp4` |
| M4A | `.m4a` |
| AAC | `.aac` |
| WAV | `.wav` |
## Upload Audio
1. Go to the "Meeting Records" page
2. Select upload audio
3. Choose a local audio file (supports mp3, mp4, m4a, aac, wav)
4. The system begins background processing
After uploading, the meeting record status changes to "Processing" and the system automatically starts transcription.
## Multi-language High-accuracy Transcription
Offline mode uses a high-accuracy speech recognition engine (such as WhisperX), which provides higher recognition accuracy compared to live mode:
* Supports multi-language recognition
* Higher recognition accuracy than live transcription
* Ideal for important meetings that require precise records
## Speaker Identification and Management
Offline mode supports automatic Speaker Diarization, where the system automatically distinguishes between different speakers:
* **Auto Identification**: The system automatically labels different speakers (e.g., SPEAKER\_00, SPEAKER\_01)
* **Custom Names**: Replace system labels with real names (e.g., "Manager Zhang", "Team Lead Li")
* **Management Interface**: Manage all speaker label names in one place
After modifying speaker labels, all related segments in the transcript are updated simultaneously.
## High-accuracy Timeline Recognition
Each transcribed text segment includes precise start and end times, allowing you to:
* Pinpoint the exact time of each utterance
* Sync with the audio player for jump navigation
* Export as SRT subtitle files with timestamps
## Dynamic Subtitle Playback
Offline mode provides dynamic subtitle playback that syncs the audio player with the transcript:
* **Sync Highlighting**: During audio playback, the current transcript segment is automatically highlighted
* **Click to Jump**: Click any transcript segment to jump the audio to the corresponding time point
* **Search and Navigate**: After searching for a keyword, jump directly to that segment's audio position
This feature lets you quickly find specific discussion content in a meeting without listening to the entire recording from the beginning.
---
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