Struct Signal 

pub struct Signal<T: Clone> {
    pub samples: Vec<T>,
    pub sample_rate: f32,
}

An owned time-series buffer with sample-rate metadata.

Fields

samples: Vec<T>

sample_rate: f32

Implementations

impl<T: Clone + Default> Signal<T>

pub fn new(samples: Vec<T>, sample_rate: f32) -> Self

Create a new signal from a sample buffer and a sample rate.

pub fn duration_secs(&self) -> f32

Duration of the signal in seconds.

pub fn len(&self) -> usize

Number of samples.

pub fn is_empty(&self) -> bool

pub fn window(&self, start: usize, len: usize) -> Signal<T>

Extract a sub-window starting at start with length len. Clamps at the end of the buffer.

impl Signal<f32>

pub fn downsample(&self, factor: usize) -> Signal<f32>

Downsample by integer factor (simple decimation, no anti-alias filter).

pub fn upsample(&self, factor: usize) -> Signal<f32>

Upsample by integer factor (zero insertion).

pub fn resample(&self, new_rate: f32) -> Signal<f32>

Resample to a new sample rate using linear interpolation.

pub fn rms(&self) -> f32

Root-mean-square amplitude.

pub fn peak(&self) -> f32

Peak absolute value.

pub fn zero_crossing_rate(&self) -> f32

Zero-crossing rate (crossings per second).

pub fn energy(&self) -> f32

Total energy (sum of squared samples).

pub fn normalize(&mut self)

Normalize to peak amplitude of 1.0 (in place).

pub fn mix_in(&mut self, other: &Signal<f32>, gain: f32)

Mix another signal into this one (adds samples).

Trait Implementations

impl<T: Clone + Clone> Clone for Signal<T>

fn clone(&self) -> Signal<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug + Clone> Debug for Signal<T>

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

Formats the value using the given formatter.