Voice matrix · A/B

Pick the voice that sells the car.

We scraped a real Porsche 911 GT2 RS listing off a dealer's inventory page, ran it through an AI agent to write the sales narration, then synthesized that script across 29 voices in two neural TTS models — blinded as 001 and 002. Same read, side by side. Hit play, pick who sells the car.

29 audio files · 2 models · 1 script · blind A/B ▾ ▾ ▾
29 samples 2 models phase 01 · exploratory
matrix live
The script · read verbatim

This is the Porsche you build a garage around. Twenty-eighteen 911 GT2 RS. Six hundred ninety-one horsepower. Zero to sixty in two-point-seven. One thousand built worldwide. Call Porsche San Luis Obispo today.

Play one from each column. Listen for pacing, naturalness, and how it handles the numbers. Which one would you trust with your listing?

TTS Model 001 19 voices
01 Eric
tts model 001
02 Chris
tts model 001
03 Jessica
tts model 001
04 Laura
tts model 001
05 Liam
tts model 001
06 Matilda
tts model 001
07 River
tts model 001
08 Roger
tts model 001
09 Sarah
tts model 001
10 Will
tts model 001
11 Adam
tts model 001
12 Alice
tts model 001
13 Bill
tts model 001
14 Brian
tts model 001
15 George
tts model 001
16 Lily
tts model 001
17 Callum
tts model 001
18 Charlie
tts model 001
19 Daniel
tts model 001
TTS Model 002 10 voices
01 Blake · helpful agent
tts model 002
02 Brooke · big sister
tts model 002
03 Caroline · southern guide
tts model 002
04 Cathy · coworker
tts model 002
05 Gemma · decisive agent
tts model 002
06 Jacqueline · reassuring agent
tts model 002
07 Katie · friendly fixer
tts model 002
08 Riya · college roommate
tts model 002
09 Ronald · thinker
tts model 002
10 Skylar · friendly guide
tts model 002
Pipeline · how this page got made

Real listing in, voice options out.

Not a demo — a build. Here are the receipts.

1
Source
Pulled from a live dealer inventory page — public listing, real car, nothing mocked up.
Vehicle2018 Porsche 911 GT2 RS (991 II)
Price$948,973
ColorViolapurplemetallic
Miles545
Power700 hp · PDK · RWD
0–602.7 sec
VINWP0AE2A93JS185343
DealerPorsche San Luis Obispo
StatusCertified Pre-Owned · Weissach Pkg
sanluisobispo.porsche.com/.../porsche-911-gt2-rs-preowned-DR0PWK ↗
2
Script
Fed the listing data to an AI agent and had it write a short sales narration — the kind of read a walkaround voiceover would use. Five sentences, tunable, built from the actual vehicle specs. Same script across every voice so the only variable is the voice itself.
3
Synthesis
Ran that script through two leading neural text-to-speech models — blinded on this page as TTS Model 001 and TTS Model 002 — to compare voice realism, pacing, and number handling on identical content. The reader picks by ear, not by brand.
4
Why
VUMO is building toward AI-narrated vehicle walkarounds. This is the voice layer of that pipeline — proving we can take a listing, write the read, and pick the voice that sells the car.
Back to index Open walkaround thread