Client: Stealth AI Startup
Role: Product Designer
Timeline: 2023
Type: AI Sales Intelligence

Case Study — The one that listens

HyperX AI
Every sales call, decoded.

Sales reps were making hundreds of calls with zero visibility. We built an AI that listens to every conversation, extracts the signal from the noise, and tells you exactly why deals close — or don't.

Live Call Analysis
Call #1047 · 4:32
Sentiment
Positive
Objection
Price
Next Step
Follow-up
10K+
Calls Analyzed Monthly
94%
Sentiment Accuracy
3.2x
Faster Coaching Cycles
67%
Objection Detection Rate

The Problem

500 calls a week.
Zero lessons learned.

Sales teams were drowning in conversations and starving for insights. Every call was a black box — closed or lost, nobody knew why. We were handed a mandate: make every call a data point.

Blind Sales Calls

Sales teams were making hundreds of calls weekly with zero visibility into what worked, what didn't, and where deals were lost.

Manual Note-Taking

Reps spent 30+ minutes per call documenting notes instead of selling. Critical insights were buried in handwritten scribbles.

No Coaching Loop

Managers had no systematic way to identify patterns, coach reps, or replicate winning behaviors across the team.

What We Built

Four modules.
One conversation intelligence engine.

01

Live Call Dashboard

A real-time command center showing active calls, sentiment trends, and instant alerts when a call goes south. Managers can jump in before a deal dies.

Reduced deal loss rate by 34%.

02

Conversation Intelligence

Every call is automatically tagged by topic, sentiment, and outcome. Reps can search 'price objections last week' and get instant, relevant clips.

10K+ calls indexed monthly.

03

Rep Scorecards

Individual performance dashboards tracking talk ratio, interruption frequency, question quality, and sentiment control. Gamified to make coaching feel less like a performance review.

92% rep adoption within 30 days.

04

AI Playbook

The system learns from top performers and generates dynamic playbooks: 'When a customer mentions competitor X, try response Y.' It's like having your best closer whispering in your ear.

28% improvement in win rates.

Design Solutions

Real-Time Transcription

AI-powered speech-to-text converts every call into searchable, timestamped transcripts within seconds of completion.

100% call coverage

Sentiment Analysis

NLP models track emotional tone throughout the conversation, flagging moments of friction, excitement, or disengagement.

94% accuracy rate

Objection Detection

Automatically identifies common objections (price, timing, competitors) and surfaces the best-performing rebuttals.

67% detection rate

Coaching Insights

Managers get AI-generated call summaries with talk-ratio analysis, key moments, and personalized coaching recommendations.

3.2x faster coaching

Design Process

01

Discovery & Immersion

Sat in on 40+ sales calls across SaaS, fintech, and healthcare verticals
Interviewed 15 sales managers about their biggest coaching pain points
Audited 3 competitors (Gong, Chorus, Salesloft) for differentiation opportunities
02

Problem Framing

Defined the core problem: not transcription, but actionable intelligence
Created 3 personas: Sales Rep, Sales Manager, RevOps Leader
Established success metrics: adoption rate, coaching speed, win rate lift
03

Design & Prototyping

Designed a dashboard-first approach — summaries before raw transcripts
Created a real-time call monitoring view with live sentiment tracking
Built interactive prototypes in Figma with 8 key user flows
Designed the AI insight card system — consistent, scannable, actionable
04

Testing & Iteration

Ran usability tests with 12 sales professionals
Simplified the dashboard from 15 widgets to 6 based on usage data
Added the 'AI Playbook' feature after reps asked for prescriptive guidance
Refined the coaching scorecard to feel motivating, not punitive
05

Launch & Scale

Shipped MVP with core transcription + sentiment analysis in 4 months
Achieved 92% rep adoption within 30 days of launch
Expanded to 3 additional verticals based on early traction

Lessons Learned

AI Needs Trust

Reps won't adopt AI coaching tools if they feel like surveillance. We designed for transparency — reps see their own insights first, managers see aggregated trends.

Signal Over Noise

Transcribing every call is table stakes. The real value is extracting 3 actionable insights from a 30-minute conversation, not 30 pages of text.

Coaching, Not Surveillance

The product succeeded because it positioned as a coaching tool that helps reps win, not a monitoring tool that catches them failing. Framing changed everything.

Got a product that needs this level of care?

Your calls
deserve better.

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