Audio to Executive Brief: Transcribe & Analyze with AssemblyAI and GPT-4

🎙️ 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