---
title: Sample description size
framework: quicktime-file-format
role: symbol
role_heading: Data field
path: quicktime-file-format/sound_sample_description_version_0/sample_description_size
---

# Sample description size

A 32-bit integer indicating the number of bytes in the sample description.

## See Also

### Data fields

- [Data format](quicktime-file-format/sound_sample_description_version_0/data_format.md)
- [Reserved](quicktime-file-format/sound_sample_description_version_0/reserved.md)
- [Data reference index](quicktime-file-format/sound_sample_description_version_0/data_reference_index.md)
- [Version](quicktime-file-format/sound_sample_description_version_0/version.md)
- [Revision level](quicktime-file-format/sound_sample_description_version_0/revision_level.md)
- [Vendor](quicktime-file-format/sound_sample_description_version_0/vendor.md)
- [Number of channels](quicktime-file-format/sound_sample_description_version_0/number_of_channels.md)
- [Sample size](quicktime-file-format/sound_sample_description_version_0/sample_size.md)
- [Compression ID](quicktime-file-format/sound_sample_description_version_0/compression_id.md)
- [Packet size](quicktime-file-format/sound_sample_description_version_0/packet_size.md)
- [Sample rate](quicktime-file-format/sound_sample_description_version_0/sample_rate.md)