Wexos: Wexos moved page WAV (File Format).txt to WAV (File Format) without leaving a redirect: Accidental .txt suffix

2024-05-01T19:01:43Z

Wexos moved page WAV (File Format).txt to WAV (File Format) without leaving a redirect: Accidental .txt suffix

← Older revision	Revision as of 19:01, 1 May 2024
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Wexos: Imported from avsys wiki

2024-05-01T18:07:52Z

Imported from avsys wiki

New page

'''WAV''' is a common file format for storing sound data. The WAV format is extended from RIFF.

= File Format =
The file byte order is always little endian.

== RIFF Header ==
The file starts with the common RIFF header which has the following structure:

{| class="wikitable"
|-
! Offset !! Type !! Description
|-
| 0x00 || Char[4] || '''File magic'''. Always ''RIFF'' in ASCII.
|-
| 0x04 || UInt32 || '''Size of data''' after this field.
|-
| 0x08 || UInt32 || '''RIFF type'''. For WAV files this must be ''WAVE''.
|}

== fmt Block ==
The fmt block contains general information about the sound. It has the following structure:

{| class="wikitable"
|-
! Offset !! Type !! Description
|-
| 0x00 || Char[4] || '''Section magic'''. Always ''fmt '' in ASCII.
|-
| 0x04 || UInt32 || '''Size of data''' following this structure, which is included in this block.
|-
| 0x08 || UInt16 || '''Audio format''' Specifies what type of audio the [[#data Block|data block]] stores.
|-
| 0x0A || UInt16 || '''Number of channels'''.
|-
| 0x0C || UInt32 || '''Sample rate'''.
|-
| 0x10 || UInt32 || '''Byte rate'''.
|-
| 0x14 || UInt16 || '''Block align'''.
|-
| 0x16 || UInt16 || '''Bits per sample'''. Specifies the size of one channel audio sample in bits.
|}

== data Block ==
The data block stores all the actual audio data.

{| class="wikitable"
|-
! Offset !! Type !! Description
|-
| 0x00 || Char[4] || '''Section magic'''. Always ''data'' in ASCII.
|-
| 0x04 || UInt32 || '''Size of data''' after this field, which is the size of the audio data ('''A''').
|-
| 0x08 || Byte['''A'''] || '''Audio data'''. The data stores the samples frame, meaning the sample of channel 1 in the first frame is stored first, then the sample of channel 2 in the first frame, and so on. After that comes the samples for the next frame, and so on.
|}

[[Category:Misc File Formats]]

WAV (File Format) - Revision history

Wexos: Wexos moved page WAV (File Format).txt to WAV (File Format) without leaving a redirect: Accidental .txt suffix

Wexos: Imported from avsys wiki