Live Translator — User Guide

Open the official listing: Live Translator on Chrome Web Store, then click Add to Chrome and confirm with Add extension.

Open https://console.soniox.com/signup in your browser. Create an account using your email or Google sign-in.

After signing in, navigate to the API section of your Soniox dashboard. You can also go directly to Soniox Get Started guide for step-by-step instructions.

Copy your API key — you will need it in the next steps.

Add a payment method to your Soniox account. You can use a credit card, PayPal, or other payment methods. The Soniox API is pay-as-you-go — you only pay for what you use.

Open https://platform.openai.com/api-keys in your browser.

If you don't have an OpenAI account, click "Sign Up" and create one. If you already have one, sign in.

Click "+ Create new secret key", give it a name like "Live Translator", and click "Create secret key".

Copy and save the key immediately — OpenAI will only show it once.

Go to Billing settings and add a payment method. The OpenAI API is pay-as-you-go — you only pay for what you use.

You can open settings in any of these ways:

• Click the gear icon (⚙) in the top-right of the translator panel.
• Right-click the Live Translator icon in your toolbar → "Options".
• Go to your browser's extensions page → find Live Translator → "Details" → "Extension options".

In the settings page, click on "Soniox" in the left sidebar. Paste your Soniox API key into the input field. The key is saved automatically.

Click on "OpenAI" in the left sidebar. Paste your OpenAI API key into the input field. The key is saved automatically.

Visit the Live Translator homepage at https://translate.ezitech.io/#pricing and scroll to the Pricing section, or click the "Purchase a license" link in the extension's settings page.

Select either:

• Monthly — $5.99/month
• Yearly — $59/year (save ~18%)

You can get a 7-day free trial to try the Pro features. After the trial, you can purchase a license to continue using the Pro features.

You will be redirected to the Polar payment page. Enter your email and payment details, then complete the purchase.

After payment, you will receive a license key via email. The license key looks like a long code (e.g., LT-XXXX-XXXX-XXXX-XXXX). Copy this key.

Open the extension settings (gear icon or right-click → Options). Click on "License" in the left sidebar. Paste your license key into the input field and click "Activate". The extension will verify your license with the server.

Once activated, you will see your license status, the email associated with the license, and the expiry date. All Pro features are now unlocked.

Go to any supported platform (e.g., Google Meet, Zoom, YouTube, etc.) and join a meeting or play a video.

Click the Live Translator icon in your browser toolbar. The translator panel will appear on the page. You can also click the floating icon that appears on the page.

Use the two language dropdowns at the top of the panel:

• "My language" — The language you speak (e.g., Vietnamese).
• "Their language" — The language others speak that you want to translate (e.g., English).

Click the Start button (play icon) in the control bar at the bottom of the panel.

Your browser may ask for permission to capture audio — click "Allow" and select the tab you want to capture.

As people speak, you will see both the original text and the translated text appear in the transcript area. Lines are automatically grouped by speaker.

Click on either the "My language" or "Their language" dropdown at the top of the panel.

The list supports 60+ languages sorted alphabetically. Scroll or type to search for your language. Click to select it.

If a session is active, changing the language will automatically restart the translation with the new language pair. Your language selection is saved for next time.

In the control bar, click the microphone icon. The icon turns active (highlighted) when the mic is on.

If this is the first time, your browser will ask for microphone permission. Click "Allow".

In the control bar, click the font size button (Aa icon). A menu appears with three sizes:

• Small — Compact view, fits more text
• Medium — Default balanced size
• Large — Easier to read from a distance

Click your preferred size. The change applies immediately and is saved for next time.

In the control bar, click the "More" button (⋯ icon). Then click "Speaker Settings" button.

The Speaker Settings dialog will open.

You will see a list of detected speakers (Speaker 1, Speaker 2, etc.). Type a real name next to each one (e.g., "John", "Sarah"). Click "Add row" if you need more.

Click "Save". All transcript lines — past and future — will now use the names you assigned.

In the control bar, click the narration button (speaker icon). The Narration Settings dialog opens.

Select your voice provider:

• Google Translate (Free) — Works without any API key. Good quality voices in 60+ languages.
• OpenAI (Premium) — Higher quality, more natural voices. Requires an OpenAI API key.

Select a voice from the dropdown and click "Test" to preview how it sounds.

Adjust voice speed and volume if needed.

Click "Narrate Their Voice" button in the dialog. Now, whenever a translation appears, it will be read aloud to you.

To stop, click the narration button again and click "Stop".

In the YouTube player, turn on captions and choose your target translated caption language (for example: Vietnamese).

Open the extension's Narration settings and turn on Auto detect translated caption.

Click "Narrate Their Voice". The narration will follow the translated caption language you selected on YouTube.

Click the narration button in the control bar to open the Narration Settings dialog.

In the dialog, find the "Narrate My Voice" section. Choose your preferred voice and provider (Google or OpenAI). You can set a different voice for "My voice" and "Their voice" narration.

Click "Test" to preview your selected voice.

Click "Start Narrate My Voice". When you speak, your words are:

1. Transcribed in your language
2. Translated to the other language
3. Spoken aloud in the meeting so the other person hears your translated voice

Your microphone is automatically muted while the translated audio plays to prevent echo.

Click the narration button and then "Stop", or press End to stop the entire session (which also stops narration).

In the control bar, look for the chat send button (next to the microphone icon). Click it to toggle on — the button turns green when active.

With your microphone on and a translation session running, when you speak, your translated text is automatically inserted into the meeting's chat input and sent.

This works on Google Meet, Zoom (Web), and Microsoft Teams (Web).

In the title bar of the translator panel, click the subtitle icon (closed captions icon).

The full panel will be replaced by a slim subtitle bar at the bottom of the screen.

Click the tune icon (settings gear) on the subtitle bar to adjust:

• Opacity — Slide to make the bar more or less transparent.
• Font size — Choose from small, medium, or large text.

You can also drag the subtitle bar to move it, and resize it by dragging the edges.

Click the close button (✕) on the subtitle bar to return to the full translator panel.

When you hover over any line in the transcript, an AI icon (🤖) appears.

The AI assistant opens in a separate window. It will use the full transcript context and the selected line to give you a detailed explanation.

The AI assistant will generate a suggested answer based on what was said in the conversation. It can even use web search to provide more accurate answers.

You can also open the AI assistant panel directly from the assistant button (🤖 icon) in the control bar. This opens a draggable chat window where you can type any question. The assistant has access to the full transcript as context.

Click the "More" button (⋯) in the control bar, then click "Context".

You can provide:

• Domain / Topic — What the conversation is about (e.g., "Medical conference", "Software engineering standup").
• Key terms — Technical terms, proper nouns, or jargon that might be hard to recognize (e.g., "Kubernetes, API gateway, microservices").
• Speaker info — Names and roles of participants (e.g., "Dr. Smith — cardiologist, presenting").

Click "Apply" to send this context to the translation engine for the current session.

If you have recurring meetings with similar topics, click "Save Preset" to save the current context. Next time, just load the preset instead of typing everything again.

You can also Import/Export presets as JSON files to share or back them up.

After a translation session (or during one), click the download button (↓ icon) in the control bar. The Download Transcript dialog opens.

Select your preferred format:

Format	Best for
TXT	Simple text file with timestamps and speaker names. Easy to read.
JSON	Structured data format. Good for processing with other tools or scripts.
SRT (Original)	Subtitle file with the original language text. Use in video editing software.
SRT (Translated)	Subtitle file with the translated text. Use in video editing software.

Click the download button for your chosen format. The file is generated in your browser and saved to your default download folder.

When a new version is available, you will see an "Update available" badge in the title bar of the translator panel.

Click the badge to open the Chrome Web Store listing and verify you are on the latest version. Store installs update automatically after a new version is published.

You haven't entered your Soniox API key yet. Go to Enter Your API Keys to set it up.

• Make sure you clicked "Allow" when the browser asked for audio capture permission.
• Make sure you selected the correct tab to share when prompted.
• Try refreshing the page and opening the translator again.
• Check that the meeting/video actually has audio playing.

• Make sure the "Their language" dropdown is set to the correct language being spoken.
• Use Context Settings to provide topic information and key terms.
• Ensure the audio quality is clear — background noise can affect accuracy.

• Confirm you are on a supported platform (Google Meet, Zoom Web, Teams Web, WhatsApp Web).
• Make sure a translation session is running and your microphone is on.
• Check that you have a Pro license activated.
• Try refreshing the meeting page and starting again.

• Verify your OpenAI API key is entered correctly in settings.
• Make sure your OpenAI account has billing set up with sufficient credits.
• If you don't need OpenAI features, use Google Translate voices for narration instead (free, no API key needed).

• Live Translator only works on supported platforms. It will not appear on unsupported websites.
• If the site is supported but the extension doesn't show, try refreshing the page.
• Make sure the extension is enabled in your browser's extension management page.