Thank you for using Teachme Biz.
We will implement a major update to the video subtitle feature, including automatic translation of subtitles that many customers have requested.
We initially announced that the specification would be fully changed with a release in late October. However, to prevent subtitle display issues in customer environments, we have changed to a phased rollout approach.
Improvement Overview
Automatic Translation of Subtitles
- Subtitles within videos can be translated.
- Subtitles in two languages can be displayed simultaneously.
Additional Subtitle Features
- Subtitles can be toggled to show/hide.
- Display position of subtitles can be selected.
* This is an image of development in progress. Changes may be made at the time of release.
Release Date
Phase 1 Released on October 22, 2025
Display of translatable subtitles and simultaneous display of two languages are now supported.
Phase 2 Released on November 10, 2025
Deletion of old-specification subtitles is now available.
Target Plans
Automatic Subtitle Translation (Video subtitle translation and simultaneous display of two languages)
- All plans + "Auto-translation Plus"
- Teachme Player
Additional Subtitle Features (Show/hide subtitle toggle and subtitle position selection)
- All plans
Compatible Apps
- Web browser version
- Mobile app (iOS/Android version)
- Both iOS and Android are compatible with version 6.5.0 and later (released on October 21, 2025).
Related: Compatible Devices/OS Recommended Environment List
https://help.teachme.jp/hc/ja/articles/14572215297305
Details
Subtitles in videos can now be translated
Instant translation from the original text to another language is now available.
Languages available as translation destinations follow the languages specified in the settings screen.
Related: Set translation destination language options (Web browser version)
https://teachme.jp/8/manuals/20931217
Subtitles in two languages can now be displayed simultaneously
Subtitles in two languages can now be displayed at the same time.
This improvement makes it easier to share information and provide education and guidance between speakers of different languages.
Both of the following patterns are supported.
Examples
- Display both original text (Japanese) and translation destination language (English)
- Display both translation destination language (English) and translation destination language (Thai)
Subtitles can now be toggled to show/hide
Subtitles can now be hidden when they are not needed.
Subtitle display position can now be selected
The subtitle display position can now be selected from either the top or bottom, allowing adjustment to a position that is easier to view according to the video.
Notes
Application of new-specification subtitles to existing manuals
To realize this major feature improvement, the fundamental specifications for subtitle display have been changed.
Old specification: Subtitles fixed to video where the subtitle state on the view screen cannot be changed
New specification: Subtitles not fixed to video where display language, display position, and display presence can be toggled
To prevent subtitle display issues in customer environments, the application to existing manuals will not be done all at once.
The subtitle appearance in each app is as follows.
| Videos edited before 2025/11/10 | Videos edited after 2025/11/10 | |
| Web browser version |
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| Mobile app (Version compatible with new specification) |
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| Mobile app (Version not compatible) |
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Teachme Player |
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Teachme Player |
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* What does "Old-specification and new-specification subtitles are displayed in duplicate" mean?
New-specification subtitles are displayed overlaid on top of old-specification subtitles.
Therefore, as long as subtitles are displayed in the original text, there is expected to be no impact on viewing, but the following situations occur due to operations on new-specification subtitles.
- Changing the subtitle position or displaying two languages causes the old and new subtitles to no longer overlap, making the old-specification subtitles visible
- Even when subtitles are hidden, old-specification subtitles continue to be displayed
When fully migrated to the new specification, duplicate display will be resolved for videos edited after the Phase 2 release.
[Mobile App] Please update to compatible version apps and beyond.
When using apps that are not compatible after the second release, captions for videos edited or newly created after this release may not be displayed.
Please update to compatible version apps.
Supported apps
- iOS App version 6.5.0 and later are supported (October 22, 2025 released)
- Android App version 6.5.0 and later are supported (October 21, 2025 released)
- Teachme Player version1.8.0and later are supported（October 21, 2025 released）
Frequently Asked Questions
Q. Is deletion of existing video subtitles mandatory?
A. It is not mandatory.
However, we recommend deletion if videos or subtitles become difficult to view due to double display.
Q. Is there a method to delete existing video subtitles in bulk?
A. There is not.
Q. Are there plans to switch all subtitles to new specification only at once as part of the functional improvement?
A. There are not.
This specification takes into consideration that all video subtitles would become unplayable if updating to compatible mobile apps is not possible.
Q. Will completely migrating to new specification subtitles affect subtitle display timing or subtitle text breaks?
A. There will be no impact.
Q. When downloading videos, will subtitles be displayed?
A. Neither original language nor translated language subtitles will be displayed. Videos without subtitles will be downloaded.
If videos with subtitles are needed, please capture videos with subtitles displayed.
We will consider responding to downloading videos with subtitles based on requests.
Q. Are videos in publicly released manuals also targeted?
A. Yes, they are targeted.
Update History
2025/11/10 Second release completed
2025/10/22 Change to Released
2025/10/15 Removed mobile browser from Compatible Applications and added supported version information for mobile apps.
2025/09/24 New creation