AI/SaaS / Maintained

AI Voice Sales Outreach Engine

n8n workflow that turns a new CRM lead into a personalized ElevenLabs voicemail in ~15 seconds — GPT-4o script generation, cloned-voice synthesis with tuned settings, S3 delivery, Airtable logging, and cost telemetry per execution.

Role

Designer and engineer (solo)

Disciplines

AI Integration / Backend Systems

Status

Maintained

System overview

Webhook-triggered n8n pipeline: normalizes CRM payloads across HubSpot, Pipedrive, Apollo, and generic shapes, soft-fails through Apollo enrichment, builds a personalized 70–95 word voicemail script with GPT-4o, synthesizes it with a cloned ElevenLabs voice using deliberately tuned stability/similarity/style settings, uploads the MP3 to S3, logs the record to Airtable, and fires a Slack notification with per-execution cost tracking. Error sub-workflow posts failures to #automation-alerts with a direct execution link.

Validation and results

End-to-end working pipeline with per-execution cost telemetry, production-grade error handling, and a tuning rationale validated through blind A/B listener tests across 12 voice setting combinations.

Media gallery

Full n8n workflow canvas — webhook ingestion, Apollo enrichment, GPT-4o script generation, ElevenLabs synthesis, S3 upload, Airtable log, and error sub-workflow.

Slack notification in #sales-outreach showing the generated voicemail, word count, and per-execution cost telemetry.

Airtable Outreach log — lead name, company, role, script preview, audio URL, and token usage per execution.

AI Podcast & Audio Newsletter Factory

Fully automated n8n pipeline that runs every morning: ranks top AI stories from RSS feeds, writes a two-host podcast script with GPT-4o in JSON mode, synthesizes each speaker through ElevenLabs with per-persona voice tuning, stitches the audio in-memory, and publishes the episode to Cloudflare R2 and Slack.

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