Introduction
Voice messages are the lifeblood of WhatsApp and Telegram communication in Latin America, Europe, and beyond. In Brazil, over 80% of WhatsApp users send voice messages regularly, according to data from Opinion Box’s 2025 messaging survey. In Spain, Mexico, and Argentina, the numbers are similarly high.
But voice messages have a problem: they are hard to search, impossible to skim, and inconvenient to listen to in many situations. Luzia solves this with two of its most popular features: voice transcription and real-time translation. This guide walks you through exactly how to use both.
Prerequisites
Before you start, ensure:
- You have Luzia as a contact. On WhatsApp, save the Luzia phone number (available at luzia.com) and send a greeting message. On Telegram, search for the Luzia bot and start a conversation.
- Your WhatsApp or Telegram is up to date. Older versions may have limitations with forwarding voice messages.
- You have an active internet connection. Luzia processes messages server-side, so you need connectivity (though WhatsApp’s low-bandwidth optimization means even a slow connection works).
How to Transcribe Voice Messages
Step 1: Receive a Voice Message
When someone sends you a voice message in any WhatsApp or Telegram chat, you will see the standard audio player interface.
Step 2: Forward the Voice Message to Luzia
- On WhatsApp: Long-press the voice message, tap the forward arrow, and select Luzia from your contacts.
- On Telegram: Long-press the voice message, tap “Forward,” and select the Luzia bot.
Step 3: Wait for the Transcript
Luzia will process the audio and return a written transcript within 5-30 seconds, depending on the message length. For most messages under 2 minutes, expect a response in under 10 seconds.
Step 4: Read and Use the Transcript
The transcript appears as a standard text message in your Luzia conversation. You can:
- Copy it to clipboard
- Forward it to another contact
- Reply to ask Luzia questions about the content
Example
[Forwarded voice message: 45 seconds, Spanish]
Luzia: Here is the transcription of the audio:
“Hi, I wanted to let you know that the meeting tomorrow has been changed to 3 PM instead of 2. Also, please bring the report from last week because the director wants to review the numbers. See you tomorrow, take care.”
Supported Languages for Transcription
Luzia’s voice transcription supports the following languages with high accuracy:
| Language | Accuracy Level |
|---|---|
| Spanish (all regional variants) | Excellent |
| Portuguese (Brazilian and European) | Excellent |
| English (US, UK, Australian) | Very Good |
| French | Good |
| Italian | Good |
| German | Good |
| Catalan | Good |
| Other languages | Variable |
Luzia handles regional accents reasonably well, including:
- Mexican vs. Argentine vs. Colombian Spanish
- Brazilian vs. European Portuguese
- British vs. American English
Tips for Better Transcription Accuracy
- Clear audio matters: Voice messages recorded in quiet environments transcribe more accurately than those with heavy background noise.
- Speaking pace: Normal conversational speed works best. Very fast speech may reduce accuracy.
- One speaker at a time: If the voice message includes multiple people talking simultaneously, accuracy drops.
- Short is better: Messages under 3 minutes transcribe most reliably. For longer messages, consider asking Luzia to focus on specific portions.
How to Translate Voice Messages
Luzia can combine transcription and translation in a single workflow.
Method 1: Transcribe, Then Translate
- Forward a voice message to Luzia.
- Receive the transcript.
- Reply: “Translate this to English” (or any target language).
- Luzia returns the translated text.
Method 2: Direct Translation Request
- Forward a voice message to Luzia.
- Before or immediately after, type: “Transcribe and translate this to Portuguese.”
- Luzia returns both the transcript and translation in a single response.
Example
[Forwarded voice message: 30 seconds, Portuguese]
You: Translate this to English.
Luzia: Original (Portuguese): “Olá, queria confirmar o pedido de 500 unidades para a próxima semana. O preço que combinamos foi de R$15 por unidade. Me confirma por favor.”
Translation (English): “Hello, I wanted to confirm the order of 500 units for next week. The price we agreed on was R$15 per unit. Please confirm.”
How to Translate Text Messages
Beyond voice messages, Luzia handles text translation directly.
Simple Translation
Send a message like:
“Translate to Spanish: The quarterly report shows a 15% increase in customer retention.”
Luzia responds:
“El informe trimestral muestra un aumento del 15% en la retención de clientes.”
Contextual Translation
For more nuanced translations, provide context:
“Translate this to formal Brazilian Portuguese for a business email: We need to reschedule the meeting to next Friday.”
Luzia responds:
“Precisamos reagendar a reunião para a próxima sexta-feira.”
Tone Adjustment
Ask Luzia to adjust the register:
“Make this more casual: Precisamos reagendar a reunião para a próxima sexta-feira.”
Luzia responds:
“Ei, precisa mudar a reunião pra sexta que vem, tá?”
Real-World Use Cases
Business Communication
A small business owner in Colombia receives voice messages from a Brazilian supplier in Portuguese. She forwards each message to Luzia, gets the transcript, then asks for a Spanish translation. She replies in Spanish, asking Luzia to translate her response to Portuguese before sending it to the supplier. The entire negotiation happens across two languages, facilitated by Luzia within WhatsApp.
Family Communication
A Mexican-American family in Texas has grandparents who speak only Spanish and grandchildren who prefer English. When grandpa sends a voice message in Spanish about a family gathering, the grandkids forward it to Luzia for an English transcript. When the grandkids want to reply, they type in English and ask Luzia to translate to Spanish.
Academic Use
A graduate student in Madrid is studying French literature. She receives audio lectures from a French professor and forwards segments to Luzia for transcription and Spanish translation, creating study notes in her native language.
Accessibility
A deaf user in Brazil receives numerous voice messages daily. By forwarding each to Luzia, he maintains full participation in voice-message-heavy group chats without needing to disclose his hearing status or ask others to change their communication habits.
Limitations and Workarounds
Audio Quality
Luzia’s transcription accuracy depends on audio quality. For voice messages recorded in noisy environments (crowded cafes, construction sites, driving), accuracy may drop. Workaround: Ask Luzia to focus on specific portions: “What did the person say about the meeting time?”
Long Messages
Very long voice messages (over 5 minutes) may result in truncated transcriptions. Workaround: Ask Luzia to continue: “Continue the transcription from where you stopped.”
Accented Speech
While Luzia handles most regional accents well, very strong dialects or code-switching (mixing languages within a sentence) can reduce accuracy. Workaround: Specify the language context: “This is a voice message in Mexican Spanish with some English words mixed in.”
Privacy
Forwarding voice messages to Luzia means the audio is processed on Luzia’s servers. While Luzia states it does not store or sell this data, users should be aware that the content temporarily leaves WhatsApp’s end-to-end encryption. For highly sensitive communications, consider this trade-off.
Luzia vs. Other Transcription Tools
| Feature | Luzia | Otter.ai | Google Recorder | WhatsApp Native |
|---|---|---|---|---|
| Works in WhatsApp | Yes | No | No | Limited |
| Translation | Yes | No | No | No |
| Price | Free | Freemium | Free | Free |
| Languages | 10+ | 3 | 8 | N/A |
| Voice message support | Yes | No (meetings only) | No (recordings only) | Basic |
Beyond Messaging: When You Need More
Luzia’s transcription and translation features are ideal for everyday messaging scenarios. For users who need more advanced capabilities—transcribing long meetings, translating entire documents, or working with multiple AI models simultaneously—platforms like Flowith offer a professional-grade AI workspace with multi-model orchestration and deep integration with productivity tools.
Conclusion
Luzia’s voice transcription and translation features solve a real, everyday problem for millions of users. By turning voice messages into searchable, shareable, translatable text—all within WhatsApp and Telegram—Luzia makes messaging more accessible, more efficient, and more inclusive.