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---
title: VAG (PS Single Waveform Data)
type: format
summary: ADPCM waveform data of one sampled sound.
category: File formats
info: Extension = .VAG
info: ID = VAGp
---

## Overview

VAG is the PlayStation single waveform data format. It holds ADPCM-encoded data of a sampled sound such as a piano note, an explosion or music, and its typical extension in DOS is ".VAG". Several VAG files are managed as one group in a [VAB](/formats/vab/) file.[^ff45]

## Structure

A VAG file has a 48-byte header (4 + 4 + 4 + 4 + 4 + 12 + 16 bytes) followed by the waveform data. The header gives the data size in bytes and the sampling frequency and also holds a 16-byte name. The fields and their byte counts are shown below.[^ff45]

Table: VAG format

| Field | Byte count |
| --- | --- |
| ID (VAGp) | 4 |
| Version | 4 |
| Reserved | 4 |
| Data size (Bytes) | 4 |
| Sampling frequency | 4 |
| Reserved | 12 |
| Name | 16 |
| Waveform data | Any |

## References

[^ff45]: Sony Computer Entertainment Inc. File Formats. November 1998. Page 4-5, Figure 201.