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

Description

📊 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