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Self-Tape Glossary for Beginner Actors

Slating, looping, B-roll, headroom — every term, defined plainly.

By TapeReady Editors January 22, 2026 5 min read
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Casting briefs are written in shorthand. Here is every term you are likely to meet in a self-tape request, defined plainly.

Camera and framing terms

  • Slate — the short introduction where you say your name and role.
  • Chest-up / medium close-up — the standard self-tape frame, chest to just above the head.
  • Headroom — the space between the top of your head and the top of frame.
  • Eye line — where you look; usually just off the lens, at your reader.
  • Full-body — a head-to-toe shot, usually recorded separately.

Sound terms

  • Lav / lavalier — a small clip-on microphone worn near the collarbone.
  • Room tone — a few seconds of silence recorded in your space, used by editors.
  • Clipping — distortion caused by recording too loudly; unfixable.
  • Looping / ADR — re-recording dialogue later to replace bad audio.

Process terms

  • Sides — the pages of script you audition with.
  • Redirect — casting asks you to re-tape with a note.
  • Callback — a second round, sometimes live, sometimes taped.
  • Producer session — the round where producers and directors watch.
  • Pin / avail — you are being held for a role while decisions finish.
  • Off book — you know the lines without holding the pages.

Delivery terms

  • H.264 — the video codec casting players expect, inside an .mp4 file.
  • Bitrate — how much data per second the file uses; controls size and quality.
  • B-roll — supplementary footage; almost never relevant to auditions.
  • Watermark — overlaid text or logo; never send a tape with one.

Frequently asked questions

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