AudioChannelLayout
The AudioChannelLayout enum describes the channel layout of an audio stream. Audio streams contain one or more channels that are intended to be rendered simultaneously with a particular arrangement of speakers. In general, more channels impact performance but provide higher spatial quality.
道具
| 名稱 | 值 | 概要 |
|---|---|---|
| Mono | 0 | Monaural audio streams contain only one Center channel.  |
| Stereo | 1 | Stereophonic audio streams consist of two channels: Left and Right.  |
| Quad | 2 | Quadrophonic audio streams consist of four channels: Left, Right, BackLeft, and BackRight. Quadrophonic streams can encode forward/backward spatial information that stereo streams might struggle with.  |
| Surround_5 | 3 | Surround sound audio streams consist of five channels: Left, Right, Center, BackLeft, and BackRight. Surround sound streams encode spatial information with better resolution front and center.  |
| Surround_5_1 | 4 | 5.1 surround sound consists of six channels: Left, Right, Center, BackLeft, BackRight, and a Sub (subsonic) low‑frequency channel. 5.1 surround sound benefits from low frequencies being less directional in order to encode higher resolution spatial information versus simple 5‑channel surround sound.  |
| Surround_7_1 | 5 | 7.1 surround sound consists of eight channels: Left, Right, Center, SurroundLeft, SurroundRight, BackLeft, BackRight, and a Sub (subsonic) low‑frequency channel. 7.1 surround sound is an improvement over 5.1 surround sound, offering better spatial resolution directly to the left and right as well.  |
| Surround_7_1_4 | 6 | 7.1.4 surround sound consists of twelve channels: Left, Right, Center, SurroundLeft, SurroundRight, BackLeft, BackRight, Sub, TopLeft, TopRight, TopBackLeft, and TopBackRight. 7.1.4 is the only currently supported channel layout that encodes height information.  |