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, firstlanguage, and secondlanguage

🎯 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