Translate English Scripts to Multilingual Audio with GPT-4 and ElevenLabs

📊 Description

Automate multilingual voice content creation by translating an English script into multiple languages and generating natural-sounding audio files using AI. 🌍🎙️ This workflow receives a script via webhook, translates it into selected target languages using GPT-4, converts each translation into high-quality speech with ElevenLabs, and uploads the resulting MP3 files to Google Drive. It’s ideal for teams producing localized videos, podcasts, courses, or educational content at scale — without manual translation or recording. 🚀✨

🔁 What This Template Does

1️⃣ Receives an English script and target languages via webhook. 🌐
2️⃣ Extracts and normalizes request parameters for processing. 📝
3️⃣ Uses GPT-4 with a strict JSON schema to translate the script into multiple languages. 🤖🌍
4️⃣ Splits each translated language into individual processing items. 🔀
5️⃣ Converts each translation into natural-sounding speech using ElevenLabs. 🎙️
6️⃣ Processes translations sequentially to avoid API limits. ⏳
7️⃣ Uploads language-specific MP3 files to Google Drive with clean naming. ☁️
8️⃣ Returns generated audio as a webhook response for frontend usage. 🔁
9️⃣ Triggers Slack alerts if any workflow error occurs. 🚨

⭐ Key Benefits

✅ Instantly localizes audio content into multiple languages
✅ Produces human-quality voiceovers without recording studios
✅ Ensures consistent tone and meaning across all translations
✅ Fully automated from script input to audio delivery
✅ Scales easily for videos, podcasts, training, and education
✅ Clean Google Drive storage for easy access and reuse

🧩 Features

• Webhook-based script ingestion
• GPT-4 multilingual translation with structured JSON output
• AI memory for consistent translation behavior
• ElevenLabs multilingual text-to-speech generation
• Batch processing for multiple languages
• Google Drive MP3 upload with language-based filenames
• Webhook audio response for frontend apps
• Slack-based error handling and alerts

🔐 Requirements

• OpenAI API key (GPT-4 / GPT-4.1-mini)
• ElevenLabs API key (multilingual voice model)
• Google Drive OAuth2 credentials
• Slack API credentials (for error alerts)
• Webhook client sending Script, first_language, and second_language

🎯 Target Audience

• Content teams creating localized videos or podcasts
• EdTech platforms producing multilingual learning material
• Marketing teams localizing campaigns across regions
• Creators building AI-driven voice pipelines
• Automation teams integrating audio localization into products