The AutoScript Sync funscript generator

What you get: a standard .funscript beside the video

After Generate, the script is saved automatically in the same folder as the video, with the same name and a .funscript extension. If a script with that name is already there, the app first copies it to <name>.funscript.bak. Only one earlier version is kept: the next Generate overwrites that .bak. To save somewhere else, use File → Save Funscript As….

The file is plain, indented UTF-8 JSON in the usual funscript shape: version, inverted, range, a metadata object and an actions list of {at, pos} points. Times are whole milliseconds, unique and in order; positions are whole numbers from 0 to 100. The file is written to a temporary copy and then swapped in, so a crash cannot leave a half-written script. The funscript format, field by field explains each key.

The saved file is not fitted to any one device, so the same file stays usable elsewhere. In the current release, speed limits and point spacing are applied only to the copy uploaded to an Autoblow AI Ultra; Intiface devices play the script as saved until the next update brings the same fitting to them.

How you use it

1. Open a video. Use Open Video (MP4, MKV, AVI, MOV, WMV, or All Files) or drag the file onto the window. If a .funscript with the same name already sits beside it, the app loads that script straight away.
2. Leave Accuracy on Balanced, the default, or change it (see below).
3. Press Generate. The whole video is analysed, then the script is saved beside it and a diagnostics report is written.
4. Play it. Watch in the app's own player, or connect a device and play the video with the script.

Two other ways to run it:

Generate + Play (instant)

Analyses roughly the first 90 seconds, starts playback, then analyses the whole video from the start and swaps in the full script when it is done. It does not save the script or write a diagnostics report, so use Generate when you want a file. In the current release, on clips of about 110 seconds or less, playback does not start this way; use Generate for short clips.

Batch Generate Folder

In the File menu. Processes every video in one folder that has no .funscript beside it, one at a time, with your current Accuracy, curve and model settings. Each script is saved next to its video. It carries on past failures, skips videos with no motion, flags results whose tracking quality is low, and never overwrites an existing script. Subfolders are not scanned.

Generate + Play and Batch Generate Folder always use the adaptive AI engine. What happens to your video during conversion walks through the analysis step by step.

The Accuracy setting, and what it trades

Accuracy decides how many frames the AI looks at. No setting analyses every frame; the rate is the video's frame rate divided by the interval, so it doubles on 60 fps video.

More samples cost time and catch more. In the developer's own tests on a few films, Fast picked up clearly fewer strokes than the other two, Balanced and High scored close together, and High took about one and a half times as long. On High, the tracked region's motion is also measured at twice the analysis resolution for flat video at least 640 px wide.

With "Auto-pick model tier from Accuracy" on (the default), the setting also chooses among the pose models you have installed, and on a GPU High uses the large depth model if it is installed. A default install downloads one pose model and one depth model, so every setting uses those two until you add more.

What you can do with the result

Edit it on the timeline

Drag points to move them, Ctrl+click to insert one, right-click to delete. Shift+drag selects a span, which you can then Amplify or Soften by 15%, shift by 20 ms, smooth, delete, loop, or Re-analyze: a rescan of just that span at the full frame rate. Ctrl+wheel zooms, Ctrl+S saves, and undo keeps 50 steps.

Load scripts made elsewhere

Load Funscript, drag-and-drop, or a same-named file beside the video opens scripts from other tools, so you can play or edit hand-made scripts too.

Use the file in other players

The saved file is a normal funscript, so programs such as OpenFunscripter and MultiFunPlayer can open it. The app does not sync with other players itself. If you have adjusted stroke range, intensity, invert or stroke depth in the app, File → Export Script (as played) writes <name>_as_played.funscript with those settings baked in, so another player feels the same thing.

Check how the run went

Help → Last Generation Quality… lists findings from the last run, each with something to do about it. For charts, open the script and its report in Report Studio, in your browser.

Which devices play it

Only the Autoblow AI Ultra has been tested on real hardware. The Handy, Kiiroo, Lovense and OSR2/SR6 paths were tested against mock servers, not the physical devices. The Handy works only over Bluetooth through Intiface; its Wi-Fi connection-key API is not supported. Intiface devices get no drift correction or latency measurement: the script runs on the PC's clock from each play or seek, shifted by your Offset. For VR, the app works with DeoVR on a Meta Quest, also tested only against a mock.

Several devices at once, a second device following the video, the newer Lovense USB dongle, and an in-app COM-port picker for an OSR2/SR6 on USB are also coming in the next update. Device compatibility, one family at a time has the detail, and the Autoblow AI Ultra page covers that path.

Price and trial

AutoScript Sync costs £14.99 once, a lifetime licence that is not tied to a version. The licence email and set-up documents state that one key activates on up to three PCs. After the key is activated online once, the licence is checked offline, and the app keeps working if the licence server cannot be reached.

The trial lasts one day and unlocks everything. It does not start by itself: when the app opens, click Start free 1-day trial in the activation window. That needs an internet connection. The trial is tracked per PC, so reinstalling does not restart it.

Keys are emailed after each payment is checked by hand, which the store page says usually takes a few hours and always under 24.

Questions

Read next

• How the AI inside the app worksEach model, what it contributes, and how it learns from you.
• What a funscript isThe file format in plain terms, for anyone new to it.
• Check a script in the free validatorFinds broken timestamps, out-of-range positions and moves too fast for a device.
• Step-by-step guidesInstalling, activating, first script, Live Track and device set-up.