Audio to Executive Brief: Transcribe & Analyze with AssemblyAI and GPT-4
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Sridevi Edupuganti
Description
🎙️ Audio-to-Insights Workflow (Form Upload + Google Drive Link)
Description
This workflow enables seamless speech-to-text transcription, AI-powered summarization, sentiment analysis, and automated email delivery.
It supports two different input modes:
Form Upload (Local File)**
Form Submission (Google Drive Link)**
How it Works
Input
Form 1: Upload an audio file (e.g., .mp3,.wav,.mp4)
Form 2: Submit a Google Drive link
File Handling
Local uploads go directly to AssemblyAI.
Drive links are parsed → File ID extracted → File fetched → Sent to AssemblyAI.
Transcription
AssemblyAI generates transcript text with punctuation and highlights.
Workflow loops with Wait + If until transcript status = completed.
AI Analysis
Transcript is passed to OpenAI.
Generates a structured output including:
Executive summary
Sentiment label & score
Key points
Action items
Notable quotes
Topics
Email Delivery
A formatted email is sent via Gmail with the summary and insights.
Features
Dual input support: Google Drive OR direct upload
Handles long-running jobs with Wait + If polling
AI-powered transcript analysis with structured JSON
Automated sentiment scoring and summary generation
Professional HTML email reports
Requirements
AssemblyAI API Key – transcription
Google Drive OAuth2 – file fetch
OpenAI API Key – summarization & sentiment analysis
Gmail OAuth2 – email delivery
How to Use
Import this workflow into your n8n instance.
Add and configure the required credentials.
Update placeholders for:
AssemblyAI API Key
Google Drive Link
Gmail ID
Trigger via either form (local file or Google Drive link).
5.For long recordings, split before uploading (10–20 min per chunk, 2–5s overlap).Keep audio consistent (e.g., WAV/MP3, 16 kHz mono if possible).Process chunks sequentially and combine summaries/action items at the end.
Customising this Workflow
Adjust the OpenAI prompt to fit your reporting style (executive summary, bullet points, etc.).
Extend email formatting with logos or branding.
Add Slack, CRM, or Notion integrations for distribution.
Use Cases
Meeting or lecture transcription with summaries
Podcast analysis with highlights and quotes
Business call reviews with action item extraction
Academic seminar notes emailed automatically