Analyze customer sales calls and update CRM with Whisper and GPT-4

Description

AI Customer Call Analyzer — Voice → Insights → CRM with GPT-4

Converts raw sales call recordings into structured CRM intelligence. Uploads audio → transcribes via Whisper → GPT-4 extracts intent, sentiment, objections, next steps → updates CRM and sends a structured summary to the sales team.

How it works

Upload Call Recording - Webhook receives audio file upload (mp3, wav, m4a) from sales rep portal
Validate & Prepare Audio - Checks file type, size limits, extracts call metadata
Transcribe via Whisper - Sends audio to OpenAI Whisper API for high-accuracy transcription
Wait — Transcription Buffer - Holds until transcription is confirmed complete
GPT-4 Call Intelligence - Extracts intent, sentiment, objections, buying signals, action items
MCP Context Enrichment - Pulls CRM history and enriches analysis with account context
Update CRM Record - Writes structured insights back to CRM (HubSpot / Salesforce)
Send Sales Summary - Emails rep and manager with call scorecard and next steps
Audit Log - Records all processing steps for compliance and coaching

Setup Steps

Import this workflow into n8n
Configure credentials:
OpenAI API - For Whisper transcription and GPT-4 analysis
HubSpot / Salesforce - CRM update target
Google Sheets - Audit log and call registry
SMTP / Gmail - Sales summary delivery
Set your CRM API endpoint and field mapping in the update node
Configure your sales team email list in the notify node
Activate the workflow

Sample Upload Payload
{
"callId": "CALL-20250222-0042",
"repEmail": "[email protected]",
"repName": "Jane Smith",
"contactEmail": "[email protected]",
"contactName": "Bob Johnson",
"companyName": "Acme Corp",
"dealStage": "negotiation",
"callDurationSecs": 1847,
"audioUrl": "https://storage.company.com/calls/call-0042.mp3"
}

Features
Whisper-powered transcription** with speaker diarization hints
GPT-4 intent and sentiment** extraction with confidence scores
Objection and buying signal** detection
Auto CRM field mapping** — no manual data entry
Sales scorecard** with talk ratio, next step clarity, deal risk
Full audit trail** for call coaching and compliance

Explore More LinkedIn & Social Automation:
Contact us to design AI-powered lead nurturing, content engagement, and multi-platform reply workflows tailored to your growth strategy.