Struct Track 

pub struct Track {
    pub id: Option<String>,
    pub node: Node,
    pub pan: f32,
    pub gain: f32,
    pub at: f32,
    pub mute: bool,
    pub automation: Vec<AutoLane>,
    pub sidechain: Option<Sidechain>,
    pub bus: Option<String>,
    pub sends: Vec<Send>,
}

One mixer channel in a Node::Tracks root.

Fields

id: Option<String>

Stable layer id — a short slug like "kick" or "tail", unique within the document. This is how edits address the track by id, so it never shifts when sibling layers are added or removed (unlike an array index). Omitted ids are backfilled deterministically (layer_<position>) on the next build.

node: Node

The track’s signal graph (usually a seq or a chain).

pan: f32

Stereo position, −1 (hard left) .. 1 (hard right). Equal-power law.

gain: f32

Channel fader, 0..2 (1 = unity).

at: f32

Start offset in seconds: the rendered layer is shifted this far right on the bus (the transient + body + tail recipe). The render keeps its full length and the shifted tail is truncated at the document edge.

mute: bool

Muted layers stay in the document but are left off the bus. This is rendered state, not a monitoring convenience — exports ship without muted layers.

automation: Vec<AutoLane>

Song-time automation lanes for this track’s gain / pan (volume rides, pan moves across sections). Empty ⇒ the static gain/pan apply and the render is byte-identical to a document without this field. A lane’s value overrides the static one over time; per-node modulators still cover the node level (this is the track/song level).

sidechain: Option<Sidechain>

Sidechain ducking: this track’s level dips whenever the source track’s signal is loud — the classic kick→bass pump, at mixer level. The source track renders exactly as it does today; only this (the follower) track is gain-reduced. None ⇒ the render is byte-identical to a document without this field. A sidechained mix streams natively (the duck envelope advances per sample, so a schema-v2 tracks root — sidechains, buses, and all — streams byte-identically to the offline bounce).

bus: Option<String>

The mix bus this track’s main output routes to (e.g. "drums", "reverb"). None ⇒ the master bus, the only behavior documents had before this field existed, so they render byte-identically.

sends: Vec<Send>

Post-fader sends: copies of this track’s positioned stereo signal (post fader/pan/duck), each scaled by its amount, into mix buses. Empty ⇒ the render is byte-identical to a document without this field.

Trait Implementations

impl Clone for Track

fn clone(&self) -> Track

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Track

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Track

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl JsonSchema for Track

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl Serialize for Track

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.