---
title: "Terminator atom ('0x00000000')"
framework: quicktime-file-format
role: symbol
role_heading: Atom
path: quicktime-file-format/terminator_atom
---

# Terminator atom ('0x00000000')

An atom that indicates the end of the sound description.

## Mentioned in

Sound sample data

## Overview

Overview This atom is present to indicate the end of the sound description. It contains no data, and has a type field of zero (0x00000000) instead of a four-character code.

## Topics

### Data fields

- [Size](quicktime-file-format/terminator_atom/size.md)
- [Type](quicktime-file-format/terminator_atom/type.md)

## See Also

### Extending sound sample descriptions

- [siSlopeAndIntercept atom](quicktime-file-format/sislopeandintercept_atom.md)
- [siDecompressionParam atom ('wave')](quicktime-file-format/sidecompressionparam_atom.md)
- [Format atom ('frma')](quicktime-file-format/format_atom.md)
- [MPEG-4 elementary stream descriptor atom  ('esds')](quicktime-file-format/mpeg-4_elementary_sound_stream_descriptor_atom.md)
- [Audio channel layout atom ('chan')](quicktime-file-format/audio_channel_layout_atom.md)
- [Subtitle follows track reference atom ('folw')](quicktime-file-format/subtitle_follows_track_reference_atom.md)