Audio to executive brief: Transcribe & analyze with AssemblyAI and GPT-4

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

️ 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...

Best for

Document Extraction automation workflows
AI Summarization automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.wait, n8n-nodes-base.if, n8n-nodes-base.stickynote, n8n-nodes-base.httprequest, @n8n/n8n-nodes-langchain.openai, n8n-nodes-base.gmail, n8n-nodes-base.noop, n8n-nodes-base.code

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Sridevi Edupuganti.

Original n8n.io source

1.1 Workflow description

Title: Audio to executive brief: Transcribe & analyze with AssemblyAI and GPT-4
Workflow name: 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

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Wait

Type / Role: n8n-nodes-base.wait - wait
Config choices: Version 1.1

Block 2 - If

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.2

Block 3 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 4 - Sticky Note2

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 5 - Sticky Note3

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 6 - Sticky Note4

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 7 - Sticky Note6

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 8 - Get Transcript

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 9 - Transcript Analysis (AI)

Type / Role: @n8n/n8n-nodes-langchain.openAi - openAi
Config choices: Version 1.8

Block 10 - Send Analysis Email

Type / Role: n8n-nodes-base.gmail - gmail
Config choices: Version 2.1

Block 11 - Sticky Note7

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 12 - Sticky Note8

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 13 - The End

Type / Role: n8n-nodes-base.noOp - noOp
Config choices: Version 1

Block 14 - Extract File ID from Link

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 15 - Fetch File from Google Drive

Type / Role: n8n-nodes-base.googleDrive - googleDrive
Config choices: Version 3

Block 16 - Upload File to AssemblyAI

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 17 - Upload Audio file to Assembly AI1

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 18 - Request Transcript from AssemblyAI

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 19 - Request Transcript from AssemblyAI1

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 20 - Audio_on form submission

Type / Role: n8n-nodes-base.formTrigger - formTrigger
Config choices: Version 2.3

Block 21 - Audio_on form submission1

Type / Role: n8n-nodes-base.formTrigger - formTrigger
Config choices: Version 2.3

Block 22 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

3. Summary Table

Workflow	Audio to executive brief: Transcribe & analyze with AssemblyAI and GPT-4
Complexity	advanced
Nodes	22
Categories	Document Extraction, AI Summarization
Author	Sridevi Edupuganti
Published	16 Sept 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/8639/8639.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Document Extraction workflows AI Summarization workflows

Frequently asked questions

What does Audio to executive brief: Transcribe & analyze with AssemblyAI and GPT-4 do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Document Extraction, AI Summarization use case.

Sridevi Edupuganti

10 workflows

Nodes

n8n-nodes-base.wait n8n-nodes-base.if n8n-nodes-base.stickynote n8n-nodes-base.httprequest @n8n/n8n-nodes-langchain.openai n8n-nodes-base.gmail n8n-nodes-base.noop n8n-nodes-base.code

Complexity

advanced

Published 16 Sept 2025

Likes 0

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Install path: /data/workflows/8639/8639.json

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Audio to executive brief: Transcribe & analyze with AssemblyAI and GPT-4

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

🎙️ Audio-to-Insights Workflow (Form Upload + Google Drive Link)

Description

How it Works

Features

Requirements

How to Use

Customising this Workflow

Use Cases

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Wait

Block 2 - If

Block 3 - Sticky Note1

Block 4 - Sticky Note2

Block 5 - Sticky Note3

Block 6 - Sticky Note4

Block 7 - Sticky Note6

Block 8 - Get Transcript

Block 9 - Transcript Analysis (AI)

Block 10 - Send Analysis Email

Block 11 - Sticky Note7

Block 12 - Sticky Note8

Block 13 - The End

Block 14 - Extract File ID from Link

Block 15 - Fetch File from Google Drive

Block 16 - Upload File to AssemblyAI

Block 17 - Upload Audio file to Assembly AI1

Block 18 - Request Transcript from AssemblyAI

Block 19 - Request Transcript from AssemblyAI1

Block 20 - Audio_on form submission

Block 21 - Audio_on form submission1

Block 22 - Sticky Note

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions