---
title: Sound sample descriptions
framework: quicktime-file-format
role: collectionGroup
role_heading: API Collection
path: quicktime-file-format/sound_sample_descriptions
---

# Sound sample descriptions

A sound sample description contains information that defines how to interpret sound media data.

## Overview

Overview The sound sample description contains information that defines how to interpret sound media data. This sample description is based on the standard sample description, as described in Sample description atom ('stsd'). The data format field contains the format of the audio data. This may specify a compression format or one of several uncompressed audio formats. The following table shows a list of some supported sound formats.  |  |   |  |   |  |   |  |   |  |   |  |   |  |   |  |   |  |   |  |   |  |   |  |   |  |   |  |   |  |   |  |   |  |   |  |   |  |   |  |   |  |   |  |   |  |   |  |   |  |

## Topics

### Using sample descriptions

- [Sound sample description version 0 ('stsd')](quicktime-file-format/sound_sample_description_version_0.md)
- [Sound sample description version 1 ('stsd')](quicktime-file-format/sound_sample_description_version_1.md)
- [Sound sample description version 2 ('stsd')](quicktime-file-format/sound_sample_description_version_2.md)

## See Also

### Storing audio data

- [Sound sample description extensions](quicktime-file-format/sound_sample_description_extensions.md)
- [Sound sample data](quicktime-file-format/sound_sample_data.md)
- [Audio priming-handling encoder delay in AAC](quicktime-file-format/appendix_g_audio_priming_handling_encoder_delay_in_aac.md)