# Raw Audio Media Types

audio/x-raw

- format, `G_TYPE_STRING`: Mandatory. The format of the audio samples, see the Formats section for a list of valid sample formats.

- rate, `G_TYPE_INT`: Mandatory. The samplerate of the audio

- channels, `G_TYPE_INT`: Mandatory. The number of channels

- channel-mask, `GST_TYPE_BITMASK`: Mandatory for more than 2 channels Bitmask of channel positions present. May be omitted for mono and stereo. May be set to 0 to denote that the channels are unpositioned.

- layout, `G_TYPE_STRING`: Mandatory. The layout of channels within a buffer. Possible values are "interleaved" (for LRLRLRLR) and "non-interleaved" (LLLLRRRR)

Use `GstAudioInfo` and related helper API to create and parse raw audio caps.

## Metadata

- `GstAudioMeta`: Metadata that describes the layout of the data inside the buffer. It is a requirement for buffers with non-interleaved layout to have this metadata attached.

- `GstAudioDownmixMeta`: A matrix for downmixing multichannel audio to a lower numer of channels.

## Formats

The following values can be used for the format string property.

- "S8" 8-bit signed PCM audio

- "U8" 8-bit unsigned PCM audio

- "S16LE" 16-bit signed PCM audio

- "S16BE" 16-bit signed PCM audio

- "U16LE" 16-bit unsigned PCM audio

- "U16BE" 16-bit unsigned PCM audio

- "S24_32LE" 24-bit signed PCM audio packed into 32-bit

- "S24_32BE" 24-bit signed PCM audio packed into 32-bit

- "U24_32LE" 24-bit unsigned PCM audio packed into 32-bit

- "U24_32BE" 24-bit unsigned PCM audio packed into 32-bit

- "S32LE" 32-bit signed PCM audio

- "S32BE" 32-bit signed PCM audio

- "U32LE" 32-bit unsigned PCM audio

- "U32BE" 32-bit unsigned PCM audio

- "S24LE" 24-bit signed PCM audio

- "S24BE" 24-bit signed PCM audio

- "U24LE" 24-bit unsigned PCM audio

- "U24BE" 24-bit unsigned PCM audio

- "S20LE" 20-bit signed PCM audio

- "S20BE" 20-bit signed PCM audio

- "U20LE" 20-bit unsigned PCM audio

- "U20BE" 20-bit unsigned PCM audio

- "S18LE" 18-bit signed PCM audio

- "S18BE" 18-bit signed PCM audio

- "U18LE" 18-bit unsigned PCM audio

- "U18BE" 18-bit unsigned PCM audio

- "F32LE" 32-bit floating-point audio

- "F32BE" 32-bit floating-point audio

- "F64LE" 64-bit floating-point audio

- "F64BE" 64-bit floating-point audio

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