Sales Call Review Tool for a Small B2B Team

Results at a glance
Scored how engaged the prospect was, live on the call
Gave the team a real read instead of "I think it went well"
Nothing to install — it just opened in a browser tab
Challenge
After every demo, the sales team huddled to argue about whether the prospect "seemed into it." The call had been on Zoom — every word, every facial expression, on tape. Nobody was looking at the tape.
Constraints
- check_circleHad to run right in the browser — nothing to install
- check_circleSensitive sales calls could never leave the company's hands
- check_circleHad to keep up live, on a normal laptop
Approach
A tool that runs in a browser tab and reads both the voice and the face on a sales call — scoring engagement live, so the team follows up on the call, not a hunch.
Architecture
- 01Reads facial expression on the call
- 02Reads tone and energy in the voice
- 03Picks up the signals that show whether someone's actually interested
Implementation
- 01Built the voice analysis from scratch
- 02Combined the voice and face read live, during the call
- 03Runs in a browser tab — nothing to install, no IT involved
Results
- check_circleScored how engaged the prospect was, live on the call
- check_circleGave the team a real read instead of "I think it went well"
- check_circleNothing to install — it just opened in a browser tab
Business impact
- check_circleThe team knew when to follow up — based on the call, not a hunch
- check_circleLess arguing about whether the prospect "seemed into it"
- check_circleLet them see which pitch actually landed
Technologies
The research is public.
Benchmarks run on machines I own, measured against frontier systems — with the failed approaches reported next to the results. Read it before you take my word for anything.