Presets and Splitting

Presets & Splitting

A preset captures where you're sharing — a target size and how to reach it — so compressing is one click. This page covers presets end to end, then how to split one long clip into several parts that each fit your target.

The size-first idea

Most encoders make you guess a bitrate and hope. Tamp flips it: you say "fit under N MB" and it computes the bitrate from the video's duration to land just under that, with a small safety margin. It never exceeds your target, and never grows a file past the source's own bitrate. Everything else (FPS, resolution, audio) is an optional cap on top of the size goal. The math is in How It Works.

Preset fields

Field	What it does
Target MB	The size to land under. The only required field.
Format	MP4 (H.264 — broad compatibility, hardware-accelerated), WebM (two-pass VP9 + Opus — great for the web), or GIF (palette-optimized, size-targeted). See format trade-offs.
Max FPS	Optional cap on frame rate (e.g. 30). Lower FPS leaves more bitrate for image quality.
Max width	Optional pixel-width cap; the height scales to match.
Scale %	Optional uniform downscale (e.g. 50%). Mutually exclusive with Max width.
Strip audio	Drop the audio track entirely — smaller files, more room for video.
Split	Break a long clip into parts that each fit Target MB — see below.

The card under each preset summarizes it at a glance, e.g. ≤ 10 MB · 30 fps · 1280px · smart split.

The built-in Discord (10 MB) preset

Tamp ships with a Discord (10 MB) preset so a typical recording is shareable immediately. Edit it, delete it, or add your own (Slack, email, a bug tracker — whatever caps you hit).

Creating, editing, and choosing a default

In Preferences → Presets:

• + New preset opens an inline editor; fill in the fields and Save.
• Edit / Delete sit on each preset card (Delete is disabled when only one preset remains).
• The radio button on a card marks it the default — the preset a plain click (or ⏎/d) uses, and the one preselected in the quick-pick menu.
• Names must be unique (case-insensitive); Tamp blocks a duplicate name so the pickers can always tell presets apart.

Splitting into parts

Sometimes one clip simply can't look good under your target — a 20-minute recording squeezed into 10 MB would be mush. Splitting compresses the video as several parts that each fit the full target, so a long demo becomes, say, four crisp 10 MB files you can post in sequence.

Set it per preset (or in a custom conversion) under Split:

• Off — one output (the default).
• Smart — Tamp decides how many parts are needed so each one looks good, splitting more for longer/busier video, up to a sensible cap. Best when you just want "good enough, automatically."
• Static — you decide:
  • By parts — a fixed number of equal pieces (2–20).
  • By duration — a new part every N seconds.

Very short clips are never split (there's nothing to gain).

Split output in the Converted tab

A split conversion's parts are saved together (each numbered) and collapse into one expandable group row in the Converted tab. Expand it to see the parts, use Copy all to put every part on the clipboard in one go, or Open output folder to reveal them. See Converted History & Output Files.