THE TELEMETRY CLIENT

A free Windows app that puts a live crew on your radio while you drive, and logs every lap you set.

• AI coach: talks you through your driving in real time: braking points, corner-by-corner advice, and where you are losing time to your best lap.
• Pit-wall announcer: lap times, tyre state, session time and laps remaining, spoken aloud.
• Leaderboard: every valid lap posts with its sector times as you set it.
• Five sims: iRacing, ACC, Automobilista 2, Assetto Corsa and Assetto Corsa EVO.
• Voice commands: hold a push-to-talk button and ask the radio, or switch things on and off, in plain speech.
• Your own screen: keep the overlay's widgets in one block, or drag each one to wherever you want it.
• Eight languages on the radio and in the app: English Español Português (BR) Deutsch Italiano Magyar 日本語 हिन्दी

First start takes a while. The first start after downloading or updating can take several minutes while the app unpacks itself. A “Loading…” window shows meanwhile — please wait and don't start it again. Later starts are quicker.

What you need

• A Windows PC running iRacing, ACC, AMS2, Assetto Corsa or AC EVO.
• A free TheTenths account to link it to.
• Nothing installed into the game: it reads the telemetry the sim already shares with apps like it.

Quick start

1. Download and run TheTenths Client (Windows). The first start can take several minutes: wait for the window rather than starting it again.
2. First run shows a short code and opens your browser — sign in (or register) and press Link this PC.
3. Press Start, then get in the car. The crew comes on the radio and your valid laps post to the leaderboard.
4. The Coaching light in the client reads learning until the coach has a reference lap to measure you against, then advising once it is calling corners.

Where the reference lap comes from

1. The fastest valid lap anyone has logged in your car at that track.
2. Your own best, if there is none.
3. Your fastest invalid lap, as a stand-in.
4. Your first proper lap when nothing is stored at all. Every faster lap you set replaces it.

Settings save automatically — the app remembers them next time, and this PC stays linked.

Setting up your sim

iRacing

Nothing to enable: the sim publishes its telemetry whenever a session is loaded.

Assetto Corsa Competizione

Nothing to enable: the sim publishes its telemetry whenever a session is loaded.

Assetto Corsa · Assetto Corsa EVO

In the game: Settings → General → Shared Memory → On.

Automobilista 2

In the game: Options → System → Shared Memory → Project CARS 2, then restart AMS2 fully; the setting only applies at startup. Project CARS 1 works too, with less data.

Settings at a glance

Language

English, Español, Português (BR), Deutsch, Italiano, Magyar, 日本語 or हिन्दी — set the spoken language and the app’s own interface language separately.

TTS engine

Kokoro (natural neural voices) or Windows (built-in, lighter).

Announcer & coach voice

Choose a specific voice or Random. On the Windows engine, pick a male/female voice instead.

Volumes

Independent levels for the pit-wall announcer and the AI coach.

Audio device

Send the radio to any output — e.g. a headset while the sim plays through your speakers.

Toggles

Turn Speech, Brake cues, the AI coach, or the Spotter on and off.

Laying out the overlay

• One setting: block width, in the Overlay layout column under the element list. It is how many pixels wide the overlay may run.
• Fills like a line of text: left to right in the order of your list; a widget that doesn't fit starts a new line.
• Subtitles wrap at the same width.

• Nothing is shrunk to fit: a wider widget gets its own line at its own size, like Gap graph and Map in the first picture.
• ◂ ▸ resize one widget (50% to 200%); block width only decides the room they are laid out in.
• Live: set it with the sim running behind the overlay. Steps of 20 px, or type any number from 160 to 3840.
• Order: the order of the element list is the order on screen; move a widget up or down to change it.

The coach inside it

• Live calls on the radio, corner by corner.
• The corner overlay: your line and pedals against your best.
• Briefing and debrief for every session.
• Driving habits it tracks across sessions.

See how the coaching works →

Talk to the radio

Bind a push-to-talk button — a key, or a button on your wheel or button box — and pick your microphone under Overlay & radio. Hold the button, say what you want, let go: the answer comes over the radio.

• Ask: fuel and fuel to the end, last and best lap, the gap, position, tyre temperatures, pressures and wear, brakes, damage, weather, time left, pace — or ask the coach for advice, the next corner, where you’re losing time and what to change in the setup.
• Switch: the radio, the coach, the pit wall, the spotter, G warnings, off-track warnings, volume and brake cues — and, in English, the overlay and each of its widgets (“weather widget off”). A switch made by voice shows in the app.
• Say it your way: “how much fuel have I got”, “can you turn the spotter off”, “too loud”. Speech-to-text picks how it listens: Speech [whisper], the default, hears free speech best; Speech [vosk] answers quicker; Keywords only takes exact phrases; Speech + AI [text] asks the server about anything still unclear.
• Private: the microphone is open only while the button is held, and speech is recognised on your PC — nothing you say is sent or kept, except the text of an unclear command in the AI mode. Test push-to-talk checks the button, the microphone and the recognition in one go.
• Built for the radio: not an off-the-shelf voice assistant but our own combination of offline speech models (Whisper, Vosk and a small language model), tuned for racing talk. Racing words it tends to mishear are put right, and each release is tuned on the commands drivers actually say.

Updates are your call

What it sends