Lixor User Manual

1. Quick Start

Lixor transcribes lecture audio in real time and translates it into multiple languages simultaneously for your participants. This chapter takes a first-time instructor through opening their first session.

중요

From 2.5.16, you cannot create a session without microphone access. Connect a microphone and grant browser permission before you start. See 10. Troubleshooting for details.

1.1 Launching and Signing In#

Launch the Lixor Host app. The server starts automatically and your browser opens.

Launch the Lixor Host app. The server starts automatically and your browser opens.

When the browser opens, the login screen appears. Enter your email and password, then sign in.

Lixor login screen
Lixor login screen

1.2 Choosing a Profile#

After signing in, a profile selection screen appears. Click the profile you want to use.

Profile selection screen
Profile selection screen

If you have no profile yet, create one. See 3. Profile Management.

1.3 Starting Your First Session#

Choosing a profile opens the Session tab. A microphone status bar is always shown at the bottom.

Session tab
Session tab
  1. Click Create New Session.
  2. Enter a session title and select the input language (the language you will speak).
  3. Confirm to create the session.
Create session dialog
Create session dialog

참고

Recording starts automatically once the session is created. Unlike earlier versions, you no longer press a microphone button first.

1.4 Inviting Participants#

When the session starts, a large join QR code is displayed in the centre of the screen.

Live session screen
Live session screen

Show this QR code to your students. They scan it with their phone camera and join immediately — no app installation required.

주의

From 2.5.16 the 6-digit session code is no longer displayed. Reading the code aloud is no longer possible; you must invite participants with the QR code. Codes for past sessions appear in the recent sessions list — see 9. Usage and Session History.

1.5 Ending a Session#

When the lecture is over, click the red End button at the top right, then confirm. The transcript is saved and you return to the Session tab.

2. Signing In and Demo

2.1 Login Screen#

Lixor login screen
Lixor login screen
ElementDescription
EmailYour registered email address
PasswordYour password
Sign InSigns you in
Live DemoTry Lixor without signing in

참고

Only the login screen uses a dark background. Every screen after sign-in is light.

2.2 Live Demo#

Click Live Demo to open the multilingual simultaneous translation view without signing in. It is convenient for introductions and demonstrations.

Allow microphone access and start speaking to see live translation.

2.3 Signing Out#

Go to the Account tab → Account Management card → Logout, then confirm.

Logout confirmation
Logout confirmation

3. Profile Management

New in 2.5.16. Profiles let you keep separate settings for different courses or subjects within a single account.

3.1 Selecting a Profile#

A profile selection screen appears right after signing in. Clicking a profile starts your session with that profile's language, font and session settings applied.

Profile selection screen
Profile selection screen

3.2 Creating a Profile#

  1. Click the New profile (+) tile.
  2. Enter a profile name.
  3. Enter the major / subject (for example, Computer Science).
  4. Click Create.

3.3 Deleting a Profile#

Click Delete below the profile tile.

주의

Settings from a deleted profile cannot be recovered. Back them up first.

3.4 Switching Profiles#

To change profile mid-lecture, click the profile badge at the top right of the screen.

3.5 Backup and Restore#

Managed from the Profile backup card on the Account tab.

ButtonDescription
BackupDownloads the current profile settings as a file
RestoreApplies settings from a backup file
Profile backup card on the Account tab
Profile backup card on the Account tab

Back up before changing computers or reinstalling — your language settings and glossary carry over intact.

4. Running a Session

This is the default screen after signing in. Most of a lecture happens here.

4.1 Session Tab#

Session tab
Session tab
ElementDescription
Create New SessionStarts a new lecture session
Microphone selectorChooses which microphone device to use
Microphone statusShows whether a microphone is detected
Refresh (↻)Scans for microphones again

The microphone bar at the bottom is always visible, and the input level meter moves as you speak.

참고

Input level (gain) cannot be adjusted in the app. Change it in your Windows or macOS sound input settings.

4.2 Creating a Session#

Click Create New Session to open the dialog.

Create session dialog
Create session dialog
FieldDescription
Session titleLecture title. Left blank, the date and time are filled in automatically
Input languageThe language the instructor speaks

Confirming creates the session and starts recording automatically.

4.3 Live Session Screen#

Live session screen
Live session screen

Top

ElementDescription
Live transcriptSwitches between the transcript view and the QR view
Recording indicatorTurns red while recording
End (top right)Ends the session

Centre

  • Session title
  • Join QR code
  • Elapsed session time (HH:MM:SS)

Bottom

ElementDescription
Multi translationOpens the multilingual translation panel (5. Multi Translation)
Question iconLocks or unlocks participant questions
StopStops recording

4.4 Locking Questions#

The speech-bubble icon at the bottom locks questions. Hovering over it shows the current state.

StateMeaning
Questions openParticipants may ask questions
Questions lockedParticipant questions are blocked

4.5 Ending a Session#

Click End at the top right and confirm. This does the following:

  • Stops any recording in progress
  • Saves the transcript
  • Invalidates the session code
  • Returns you to the Session tab

주의

Ending a session immediately invalidates the QR code and session code, so participants cannot rejoin. Do not end the session during a break.

Transcripts of ended sessions are available in 9. Usage and Session History.

5. Multi Translation

Displays translations in several languages on one screen at the same time. This replaces the "Triple Simultaneous Translation" and "Translation Window" features of earlier versions.

참고

In 2.5.16 the Triple Simultaneous Translation item was removed from the Settings menu. Enter this view from the Multi translation button at the bottom of the live session screen.

5.1 Entering and Leaving#

During a session, click Multi translation at the bottom to open a full-screen panel. Click the collapse icon at the bottom left to return to the Session tab.

Multi translation panel
Multi translation panel

5.2 Panel Layout#

  • Each language gets its own panel, labelled at the top left (Korean, Vietnamese, and so on).
  • The panel for the instructor's spoken language shows the source text; the others show that language's translation.
  • Click the × at the top right of a panel to close that language.
  • The arrangement adjusts automatically to the number of panels.

5.3 Bottom Toolbar#

ButtonDescription
🇻🇳 🇺🇿 🇲🇲 🇲🇳 🇷🇺 🇺🇸 🇨🇳 🇰🇷Vietnamese · Uzbek · Myanmar · Mongolian · Russian · English · Chinese · Korean
Add a language
Change layout
🔊Listen (TTS)
CCShow captions
Switch light / dark theme
QRShow the join QR code
More options

Clicking a flag adds or removes that language's panel.

5.4 Theme#

The multi translation panel supports light and dark themes. Switch with the ◐ button; your choice is remembered for next time.

Multi translation panel in dark theme
Multi translation panel in dark theme

Dark suits a dimly lit lecture hall; light reads better on a projector.

5.5 If Picking Languages Each Time Is Tedious#

Save a frequently used language set and you can start from a single button on the Session tab. See 6. Quick Start Modes for setup.

6. Quick Start Modes

Start a session with a single button instead of picking languages every time. Save a frequently used language set and a dedicated button appears on the Session tab.

Session tab with Quick Start buttons
Session tab with Quick Start buttons

중요

Neither button appears until you have saved its settings. If the Session tab shows only Create New Session, nothing has been saved yet.

6.1 Setting Up Quick Start (Multi)#

Saves the language set for showing several translation panels at once.

  1. Go to Settings → Translation Settings.
  2. Check the active languages list further down the page.
  3. Add languages under Add language:
    • click a country button (VN · UZ · MN · NP · MM · US · CN · KR), or
    • pick one from the Other languages dropdown and click +.
  4. Click Save quick start languages.
Save quick start languages at the bottom of Translation Settings
Save quick start languages at the bottom of Translation Settings

Once saved, the Quick Start (Multi) button appears on the Session tab. Clicking it starts a session with that language set and opens the multi translation panel.

Click the red ✕ beside a language in the active list to remove it. After changing languages you must save again for the change to take effect.

6.2 Setting Up Quick Start (Caption)#

Saves the language set for overlaying captions on your lecture screen.

  1. Go to Settings → Overlay.
  2. Turn Overlay on.
  3. Choose the caption languages under active languages and Add language.
  4. Click Save Quick Start (Caption).
Save Quick Start (Caption) at the bottom of Overlay settings
Save Quick Start (Caption) at the bottom of Overlay settings

Once saved, the Quick Start (Caption) button appears on the Session tab.

참고

The active languages and Add language sections appear only after the overlay is turned on. With the overlay off, you see just the save button.

6.3 Comparing the Three Buttons#

ButtonWhat it does
Quick Start (Multi)Starts a session with the saved languages and opens the multi translation panel
Quick Start (Caption)Starts a session with the saved languages and shows overlay captions
Create New SessionStarts a session with a title and input language you enter yourself

7. Settings Tab

Click the Settings tab at the top. The left menu has eight items.

7.1 Translation Settings#

Translation settings
Translation settings

Translation languages

ItemDescription
Input languageThe language the instructor speaks. 108 languages supported
Frequently used languagesQuick buttons: 한국어 · 中文 · English · Tiếng Việt

Adding translation languages

ElementDescription
Frequently used languagesVietnamese · Uzbek · Mongolian · Nepali · Myanmar · English · Chinese
Other languagesSelect additional languages from the dropdown

Multi-translation quick start languages

Choose the language set for the Quick Start (Multi) button on the Session tab, then save it.

7.2 Overlay#

Displays captions on top of your lecture screen.

Overlay caption settings
Overlay caption settings
ItemDescription
Overlay on / offWhether overlay captions are used
Caption font sizeSlider
Save Quick Start (Caption)Saves the current setup to the Quick Start (Caption) button

참고

The active languages and add language sections appear only after the overlay is turned on.

7.3 Translation Font#

Translation font settings
Translation font settings

Body font

ItemDescription
Body font sizeSlider (default 1.0rem)
Body font familySystem default, Noto Sans, Malgun Gothic, Nanum Gothic, Arial, Helvetica

Translation window font

ItemDescription
Translation window font sizeSlider (default 1.2rem)
Translation window font familyFont selection
Restore defaultsResets all font settings

7.4 Session Settings#

Session settings
Session settings
ItemDescription
Questioner TTSReads participant questions aloud
Display ModeSilent Mode / Transcript Only / Translation Only / Transcript & Translation
Speech Recognition EngineLocal Whisper ASR / Web Speech API
Translation ModeFast (early) / Accurate (after sentence)
Translator modelChoice of translation service
Microphone checkMicrophone Test button

Display modes

ModeDescription
Silent ModeShows neither transcript nor translation
Transcript OnlyShows the source transcript only
Translation OnlyShows translations only
Transcript & TranslationShows both

Speech recognition engines

EngineDescription
Local Whisper ASRHigh-accuracy recognition running locally (recommended)
Web Speech APIThe browser's built-in speech recognition

Translation modes

ModeDescription
Fast (early)Begins translating before the sentence ends. Quicker, but wording may be revised
Accurate (after sentence)Translates once the sentence is complete. More accurate, slightly delayed

7.5 Speech Recognition Training#

Found lower down the Session Settings screen. Manages a glossary that corrects technical terms and frequently misheard words.

ButtonDescription
ReloadRefreshes the glossary
Add TermAdds a new correction rule
Test Post-processingTries the correction rules
DebugShows correction details

The glossary list can be filtered by file, searched by term, and each entry has Edit and Delete buttons.

Adding a term

  1. Click Add Term.
  2. In the original text field, enter the text that was recognised incorrectly.
  3. In the corrected text field, enter the correct wording.
  4. Save.

7.6 UI Language#

Application language settings
Application language settings
ItemDescription
Select Application Language한국어 (Korean) / English

주의

The English interface is not fully translated in 2.5.16. The usage dashboard menu shows the untranslated key usage_dashboard_menu, and some tooltips and status messages remain in Korean.

7.7 Usage Dashboard#

See 9. Usage and Session History.

7.8 Support and About Lixor#

See 11. Support and Updates.

8. Account Tab

Click the Account tab at the top.

Account tab
Account tab

8.1 Basic Information#

ItemDescription
Instructor NameYour registered name
EmailSign-in email
Subscription TierBasic / Premium

8.2 Personal Settings#

ItemDescription
Personal Voice Training ModeTraining mode that improves speech recognition accuracy

8.3 Activity Information#

ItemDescription
Last LoginMost recent sign-in time
Join DateAccount creation date
ItemDescription
FeedbackSubmit suggestions for improving the service
Privacy PolicyView the privacy policy

8.5 Account Management#

ItemDescription
LogoutSigns out of the current account

8.6 Profile Backup#

ButtonDescription
BackupDownloads profile settings as a file
RestoreApplies settings from a backup file

See 3. Profile Management for details.

9. Usage and Session History

New in 2.5.16. Open Settings → Usage Dashboard.

참고

In the English interface this menu item currently displays as usage_dashboard_menu — an untranslated key. It is the Usage Dashboard.

9.1 Usage Summary#

Usage dashboard
Usage dashboard
ItemDescription
Sessions createdTotal number of sessions
Hours usedCumulative usage in hours
Average durationAverage length of one session

This month repeats the same three figures for the current month. Use the refresh (↻) button at the top right to reload the latest values.

9.2 Recent Sessions#

Past sessions are listed below the dashboard.

Recent sessions list
Recent sessions list

Period filters

All · Last 1 day · Last 7 days · Last 15 days · Last 30 days · Last 90 days · Custom range

For a custom range, set the start and end dates, then apply. You can also search by title using the search box at the top right.

What each session card shows

ItemDescription
Session titleThe title entered when the session was created
Date and statusStart time and whether it has ended
DurationHow long the session ran
MessagesNumber of transcript and translation messages
Session codeShown at the top right of the card

The 6-digit code is not shown on the live session screen. If you need the code of a past session, find it here.

9.3 Working with Transcripts#

Each session card has two buttons.

ButtonDescription
View transcriptOpens that session's transcript and translation record
Email transcriptSends the transcript by email

Click Show more below the list to load older sessions.

10. Troubleshooting

10.1 "No microphone available" when creating a session#

Session creation stops with a message saying a microphone is required.

Microphone required dialog
Microphone required dialog

중요

This message appears not only when no microphone is physically present, but also when browser microphone permission has not yet been granted. If your microphone is connected and you still see this, check permissions first.

1) Check browser permission

  1. Click the 🔒 icon at the left of the address bar.
  2. Set Microphone to Allow.
  3. Reload the page.
  1. Tap the microphone button at the bottom centre of the screen.
  2. Tap Allow in the permission popup.
  3. See 4. Using the Microphone & Granting Permissions in the student manual.

2) Check the microphone device

  1. Pick your device from the dropdown in the microphone bar at the bottom.
  2. If the list is empty, click the refresh (↻) button.
  3. The status line should confirm the microphone is available.

3) Check whether another app is using the microphone

If Zoom, Teams or similar is holding the microphone, quit that app.

10.2 Speech recognition keeps cutting out#

  1. Change the engine: set Settings → Session Settings → Speech Recognition Engine to Local Whisper ASR.
  2. Check your network: a stable internet connection is required.
  3. Adjust microphone placement: keep a consistent distance and reduce background noise.
  4. Check input level: if the level meter barely moves, raise the gain in your OS sound input settings.

10.3 Translations are not showing#

  1. Check display mode: set Settings → Session Settings → Display Mode to Transcript & Translation.
  2. Check the translation language under Settings → Translation Settings.
  3. Check translation mode: Accurate (after sentence) waits for the sentence to finish. If it feels slow, try Fast (early).

10.4 Participants cannot join#

  1. Confirm the session is running. Ending a session invalidates the QR code and code immediately.
  2. Show the QR code again. From 2.5.16 you cannot read a code aloud instead.
  3. Check the address. The join domain is lixor-web2.datant.ca.

주의

The join domain changed from lixor-web.datant.ca to lixor-web2.datant.ca. Replace the old address anywhere it still appears in your handouts.

10.5 Quick Start buttons are missing#

Quick Start (Multi) and Quick Start (Caption) appear only after you save their settings.

ButtonHow to make it appear
Quick Start (Multi)Settings → Translation Settings → choose quick start languages → save
Quick Start (Caption)Settings → Overlay → configure the overlay → save Quick Start (Caption)

10.6 The app will not start#

  1. Restart the app: quit completely, then launch again.
  2. Clear the cache: clear your browser cache and retry.
  3. Check for updates: Settings → About Lixor → Check for updates.

10.7 Contact#

ItemDetails
Emailsupport@klec.tech
Phone031-385-2251
Operating hoursWeekdays 09:00 - 18:00

Information to include when contacting us

  1. Device model name
  2. App version (Settings → About Lixor)
  3. Description of the problem
  4. Error message (if any)
  5. Screenshot (if possible)

11. Support and Updates

11.1 Support#

Open Settings → Support.

Support screen
Support screen
ButtonDescription
Bug ReportBug reporting form — title, description, steps to reproduce, environment, contact
Technical SupportTechnical enquiry form — type, title, details, phone number
FAQFrequently asked questions

11.2 About Lixor#

Open Settings → About Lixor.

About Lixor screen
About Lixor screen
ItemDescription
VersionCurrent app version
Last updatedDate of the most recent update
Auto updateChecks for updates automatically at app start
Check for updatesChecks for a new version immediately

11.3 Running an Update#

When a new version is available, an update notice appears.

ButtonDescription
Start nowBegins the update immediately
LaterSkips this time

If the update cannot proceed, a notice appears with an option to notify your administrator.

Do not update right before a lecture. The app restarts during an update and you cannot open a session.

11.4 Contact#

ItemDetails
Emailsupport@klec.tech
Phone031-385-2251
Operating hoursWeekdays 09:00 - 18:00

1. Joining a Class

You can join a class instantly using your smartphone camera without installing any extra apps.

1.1 Scan the QR Code#

  1. Open your smartphone's default Camera app.
  2. Point it at the QR code displayed on the classroom screen.
  3. Tap the link that appears at the top of the screen.
Scanning the classroom QR code
Scanning the classroom QR code

Tapping the link takes you straight into the class — there is no separate join button to press.

중요

The address is lixor-web2.datant.ca. If an older handout shows lixor-web.datant.ca (without the 2), that address will not work.

1.2 If You Missed the QR Code#

Ask your instructor to show the QR code again. If a classmate has already joined, you can scan the QR code from their screen instead — see 5. Other Useful Features.

참고

Earlier versions let you type a 6-digit session code. Joining is now by QR code only.

2. Screen Overview

Once you enter, your instructor's speech appears translated on screen in real time.

Student session screen
Student session screen

2.1 Top Bar#

ElementPositionDescription
Top leftLeaves the session
Session titleTop leftThe class name and target language (Translating to …)
ConnectedTop rightA green dot means you are connected
👁 (eye)Top rightShows or hides the original text
🔇 (speaker)Top rightTurns spoken translation on or off
⚙ (gear)Top rightChange language, share QR code, sign out

2.2 Bottom Bar#

ElementDescription
Microphone buttonUse it when you need to speak or ask a question
Live Session ActiveIndicates the class is in progress
Flag iconsTap to switch the translation to that language instantly

2.3 Translation Area#

Before your instructor speaks, the screen shows You're all set! Once they start speaking, translations appear there in order.

3. Setting the Translation Language

Here are two ways to set the language so you see subtitles in your native language.

3.1 Method A — Quick Change (Bottom Flag Icons)#

Tap one of the flag icons at the very bottom of the screen to switch the translation instantly. A Language changed to … notice appears briefly at the top.

Flag icons at the bottom of the student screen
Flag icons at the bottom of the student screen

3.2 Method B — Search the Full Language List#

  1. Tap the Settings (⚙) icon in the top right corner.
  2. Tap Change Language.
Settings menu
Settings menu
  1. Scroll to find your language, or type its name in the search bar (Search languages...).
  2. Select your language, then tap the green Continue to Session button at the bottom.
Language selection screen
Language selection screen

The list is long. Typing the first two or three letters of the English name finds it fastest.

4. Using the Microphone & Granting Permissions

If you need to speak during class, you must allow microphone and speech recognition permissions on your smartphone the first time.

4.1 Granting Permission#

  1. Tap the Microphone button at the bottom centre of the screen.
  2. When the Speech Recognition permission popup appears, tap Allow (or 허용).
  3. When the Microphone permission popup appears, tap Allow (or 허용).
  4. When the microphone button changes colour, speech recognition has started. You may speak.
Microphone button on the student screen
Microphone button on the student screen

참고

You only need to grant these permissions once.

4.2 If You Tapped Deny by Mistake#

Tap the lock icon in your browser's address bar, set microphone access to Allow, then reload the page.

4.3 If the Question Feature Is Locked#

When your instructor locks questions, the microphone cannot be used. Ask your instructor to unlock questions.

5. Other Useful Features

5.1 Sharing the Session with a Friend#

  1. Tap Settings (⚙) in the top right.
  2. Tap Share QR Code.
  3. A large QR code and the session address appear.
Share session screen
Share session screen

A classmate sitting next to you can scan it to join instantly. If a camera is awkward to use, pass along the Session URL shown on screen instead.

Tap Close at the bottom to dismiss it.

5.2 Hiding the Original Text#

Tap the eye (👁) icon at the top to show or hide the original text. Hiding it gives you a much cleaner screen when you only want the translation.

5.3 Listening to the Translation#

Tap the speaker icon at the top to have translations read aloud. With earphones in, you can follow the class without watching the screen.

5.4 Conference Mode#

In the Settings (⚙) menu, a green dot next to Conference Mode means it is active. It is used for seminar or meeting style classes where several people speak.

5.5 Leaving and Rejoining#

Tap at the top left to leave the session. To return, scan the classroom QR code again.

6. Technical Support

6.1 Common Problems#

SymptomWhat to do
I cannot connectCheck the address is lixor-web2.datant.ca. The old address (lixor-web.datant.ca) no longer works
The QR code does not open anythingThe class may have already ended. Check with your instructor
No translations appearCheck the Connected indicator at the top is green. If it is grey, check your network
The microphone does not workSee 4. Using the Microphone & Granting Permissions
I cannot see the original textCheck whether the eye (👁) icon at the top is switched off

6.2 Support Channels#

ItemDetails
Emailsupport@klec.tech
Phone031-385-2251
Operating hoursWeekdays 09:00 - 18:00

6.3 Information to Include When Contacting Us#

  1. Device model name
  2. Browser used
  3. Description of the problem
  4. Error message (if any)
  5. Screenshot (if possible)