The PCM Audio Track Chunk is one type of sound track which can be used as a sound source. This chunk includes both format recognition data and various sub-chunks.
- Format Type (required)
- Sequence Type (required)
- Wave Type (required)
- TimeBase_D (required)
- TimeBase_G (required)
- Seek & Phrase Info Chunk (optional)
- Set-up Data Chunk (optional)
- Sequence Data Chunk (required)
- Wave Data Chunk (optional)
- Format Type (required)
- Sequence Type (required)
Specifies either a single continuous stream of sequence data (stream sequence) or data from multiple consecutive phrases.
- Wave Type (required)
- Defines the format of the Wave Data Chunk. The format contents are defined below.
Channel
Format
Sampling Frequency
Base Bits
- TimeBase_D (required)
- Denotes standard time for Duration, which is used internally in sequence data.
- TimeBase_G (required)
- Denotes standard time for GateTime, which is used internally in sequence data.
- Seek & Phrase Info Chunk (optional)
- Stores information to enable Start/Stop operation at intended positions within the sequence data, or to enable representation of operations such as section repeat. These operations, like optional functions, depend on factors such as device type, and on the original intent at data creation time.
Data is stored in the body in the following order.
Start Point
Stop Point
Phrase List
Sub-sequence List
- Set-up Data Chunk (optional)
- This chunk stores voice data, effect settings and the like for the sound source section.
- Sequence Data Chunk (required)
- This chunk stores audio event data.
- Wave Data Chunk (optional)
- This chunk stores wave data. Up to 255 waveforms can be described.
