Why ScreenApp Beats ChatGPT for LINE Voice Transcription
ChatGPT and other AI assistants cannot process audio files directly because they only accept text and image input. If you paste a LINE voice message link into ChatGPT, nothing happens. You would need to run the audio through a separate API, convert the result, and then manually clean up the output. That is two tools, extra steps, and no speaker identification.
ScreenApp handles LINE voice transcription from start to finish in one place. Upload your voice message or audio note, and it returns a full transcript with speaker labels, timestamps, and AI-generated summaries. No API setup, no file conversion, no workarounds.
LINE itself has no built-in feature that converts voice messages to text. Unlike WhatsApp or iMessage, which have started adding native transcription, LINE users currently depend on third-party tools to get their voice messages into a readable format. ScreenApp fills that gap with strong support for Japanese, Korean, Chinese, Thai, and 120+ other languages commonly used across LINE’s user base in Asia.
Why use LINE voice transcription with ScreenApp:
- Works entirely in your browser with no app install
- Transcribes Japanese, Korean, Chinese, Thai, and 120+ languages
- Speaker identification for group voice chats
- AI summaries, translation, and search built in
- Export as TXT, DOCX, or PDF
- Free to use with no account required
How LINE Voice Transcription Works
Converting a LINE voice message to text takes three steps:
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Export your voice message - Open your LINE chat, tap and hold the voice message, and save it to your device. LINE stores voice messages as M4A files, and ScreenApp accepts M4A along with MP3, OGG, WAV, and other common formats without any conversion.
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Upload and transcribe - Drop the file into ScreenApp or use the upload button. The AI processes the audio and generates a text transcript within seconds. If the message includes multiple speakers, each one is detected and labeled automatically.
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Export or transform - Download your transcript as a text file, translate it into another language, search for specific words, or generate a summary. Everything happens inside ScreenApp without switching tools.
The platform handles real-world audio well, including recordings with background noise or mixed languages in a single message.
LINE Voice Transcription vs Other Tools
| Feature | ScreenApp | Otter.ai | Notta.ai | Rev | Sonix |
|---|---|---|---|---|---|
| Free tier | Yes | 300 min/mo | 200 min/mo | 45 min/mo | 30 min trial |
| Asian language support | 120+ languages | Limited | 58 languages | 38 languages | 38+ languages |
| Speaker identification | Yes | Yes | Yes | Yes | Yes |
| AI summaries | Yes | Pro plan ($16.99/mo) | Pro plan ($8.17/mo) | Subscription ($29.99/mo) | Premium ($22/mo + $5/hr) |
| Export formats | TXT, DOCX, PDF | TXT, PDF | TXT, DOCX, SRT | TXT, DOCX, PDF | TXT, DOCX, SRT, PDF |
| No signup required | Yes | No | No | No | No |
| Works in browser | Yes | Yes | Yes | Yes | Yes |
Key differences:
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vs Otter.ai: Otter.ai is built for English-language meetings and has limited support for Asian languages. Its free plan caps transcription at 300 minutes per month with 30-minute session limits, and AI summaries require the Pro plan at $16.99/month. ScreenApp handles Japanese, Korean, and Chinese with native accuracy and includes AI tools on the free tier.
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vs Notta.ai: Notta supports 58 languages and starts at $8.17/month for its Pro plan. However, the free plan limits recordings to 3 minutes each and blocks transcript downloads. ScreenApp has no per-recording time cap on the free tier and supports over twice as many languages.
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vs Rev: Rev charges $0.25 per minute for AI transcription or $1.99 per minute for human transcription. The free plan gives you only 45 minutes per month. For regular LINE voice message transcription, costs add up fast. ScreenApp provides free transcription with no per-minute fees.
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vs Sonix: Sonix uses pay-as-you-go pricing at $10 per hour on the Standard plan, or $5 per hour plus a $22/month subscription on Premium. There is no ongoing free plan beyond a 30-minute trial. ScreenApp lets you start transcribing immediately at no cost.
Use Cases for LINE Voice Transcription
Business teams in Asia rely on LINE for daily communication across Japan, Thailand, Taiwan, and Indonesia. Transcribing voice messages creates searchable records of client discussions, project updates, and decisions that would otherwise disappear in a chat scroll.
Students and researchers studying Japanese, Korean, or Chinese can transcribe LINE voice messages from language partners or tutors. Having a written version makes it easier to review vocabulary, check grammar, and build study notes.
Journalists conducting interviews over LINE voice messages get full transcripts with speaker labels. This makes it straightforward to pull accurate quotes without replaying audio repeatedly.
Freelancers and remote workers who receive voice briefs from clients on LINE can turn them into written task lists and project documentation. No more replaying a two-minute message five times to catch every detail.
Frequently Asked Questions
Can I transcribe LINE voice messages without installing any software?
Yes. ScreenApp runs entirely in your browser. Save your LINE voice message to your device, upload it to ScreenApp, and get your transcript. No downloads, no plugins, no account creation required.
What audio formats does ScreenApp accept for LINE messages?
ScreenApp accepts M4A (LINE’s default format), MP3, OGG, WAV, MP4, and most other standard audio and video formats. You do not need to convert files before uploading.
How accurate is transcription for Japanese, Korean, and Chinese?
ScreenApp delivers above 99% accuracy for clear recordings in Japanese, Korean, Chinese, Thai, and other Asian languages. Results vary with background noise and speaker clarity, but the AI handles real-world audio reliably.
Does ScreenApp detect multiple speakers in a LINE group voice chat?
Yes. When your recording includes more than one speaker, ScreenApp identifies and labels each person in the transcript. This works for group voice chats, forwarded recordings, and conference-style calls.
How long does it take to transcribe a LINE voice message?
Most LINE voice messages are transcribed within seconds. Longer recordings or video files may take a minute or two depending on file size.
Is my LINE voice message data secure?
ScreenApp encrypts all uploads and transcriptions. Your voice messages and transcripts are processed with strict data protection measures, and your conversations remain private.
Can I translate a LINE voice message after transcribing it?
Yes. After the transcript is generated, you can translate it into any of the 120+ supported languages directly inside ScreenApp. No separate translation tool needed.
