Overview

FlashVoice allows you to transcribe audio and video files fully offline, directly on your device.

This guide walks you through the complete workflow:

  • Importing local files
  • Selecting a transcription language
  • Running offline transcription
  • Polishing results with AI
  • Exporting text or subtitle files

No files are uploaded to the cloud during this process.

Step 1: Open the Transcribe Files Page

Open FlashVoice and select Transcribe Files from the sidebar.

This page is dedicated to offline file transcription and supports both audio and video files.

Step 2: Add Local Audio or Video Files

You can add files in two ways:

  • Click Add Local Audio/Video Files
  • Drag and drop files directly into the window

FlashVoice supports common formats such as:

  • Audio: MP3, WAV, AAC, FLAC, M4A
  • Video: MP4

For video files, FlashVoice automatically extracts the audio track before transcription.

Step 3: Choose Transcription Language

Before starting transcription, you can select the Transcription Language.

Available options include:

  • Auto Detect (default)
  • Chinese Mandarin
  • English
  • Cantonese
  • Japanese
  • Korean

Selecting a specific language usually produces more accurate results, especially for long recordings or accented speech.

Step 4: Start Transcription

Once files are added and the language is selected:

  1. Click Start Transcription
  2. FlashVoice begins processing files locally
  3. Progress is shown under In Progress

You can switch between In Progress and Completed tabs to track transcription status.

Step 5: Review Completed Transcriptions

After transcription finishes, files appear under Completed.

Each transcription entry displays:

  • File name
  • Date and time
  • Duration
  • Detected or selected language
  • A preview of the transcribed text

Click any item to open the full transcription result.

Step 6: Polish the Result with AI (Optional)

After opening a completed transcription, you can optionally use AI Correction.

AI Correction can:

  • Fix recognition errors
  • Improve punctuation
  • Smooth sentence flow
  • Make the text more readable

This step is optional and does not modify the original transcription unless you choose to apply it.

Step 7: Export the Transcription

FlashVoice supports multiple export formats:

Plain Text (TXT)

  • Clean, continuous text
  • Suitable for notes, documents, and drafts

Subtitle File (SRT)

  • Includes timestamps
  • Suitable for video subtitles and captions

You can copy the content directly or save it as a .txt or .srt file.

Tips for Best Results

  • Select a specific language instead of Auto Detect when possible
  • Use clear audio with minimal background noise
  • Re-run AI correction if the text needs further refinement
  • Export SRT when working with video content

Summary

FlashVoice makes it easy to transcribe audio and video files locally, without uploading your data to the cloud.

With language selection, optional AI correction, and flexible export formats, you can turn local files into clean text or subtitles in just a few steps — fully offline and privacy-first.