Struct web_audio_api::node::AnalyserNode

pub struct AnalyserNode { /* private fields */ }

Provides real-time frequency and time-domain analysis information

Implementations

impl AnalyserNode

pub fn new<C: BaseAudioContext>(context: &C, options: AnalyserOptions) -> Self

pub fn frequency_bin_count(&self) -> usize

Half the FFT size

pub fn fft_size(&self) -> usize

The size of the FFT used for frequency-domain analysis (in sample-frames)

pub fn set_fft_size(&self, fft_size: usize)

This MUST be a power of two in the range 32 to 32768

pub fn smoothing_time_constant(&self) -> f64

Time averaging parameter with the last analysis frame.

pub fn set_smoothing_time_constant(&self, value: f64)

Set smoothing time constant, this MUST be a value between 0 and 1

pub fn get_float_time_domain_data(&self, buffer: Vec<f32>) -> Vec<f32>

Copies the current time domain data (waveform data) into the provided buffer

pub fn get_float_frequency_data(&self, buffer: Vec<f32>) -> Vec<f32>

Copies the current frequency data into the provided buffer

Trait Implementations

impl AudioNode for AnalyserNode

fn registration(&self) -> &AudioContextRegistration

fn channel_config(&self) -> &ChannelConfig

fn number_of_inputs(&self) -> usize

The number of inputs feeding into the AudioNode. For source nodes, this will be 0.

fn number_of_outputs(&self) -> usize

The number of outputs coming out of the AudioNode.

fn context(&self) -> &ConcreteBaseAudioContext

The BaseAudioContext concrete type which owns this AudioNode.

fn connect<'a>(&self, dest: &'a dyn AudioNode) -> &'a dyn AudioNode

Connect the output of this AudioNode to the input of another node.

fn connect_at<'a>(
    &self,
    dest: &'a dyn AudioNode,
    output: usize,
    input: usize
) -> &'a dyn AudioNode

Connect a specific output of this AudioNode to a specific input of another node.

fn disconnect_from<'a>(&self, dest: &'a dyn AudioNode) -> &'a dyn AudioNode

Disconnects all outputs of the AudioNode that go to a specific destination AudioNode.

fn disconnect(&self)

Disconnects all outgoing connections from the AudioNode.

fn channel_count_mode(&self) -> ChannelCountMode

Represents an enumerated value describing the way channels must be matched between the node’s inputs and outputs.

fn set_channel_count_mode(&self, v: ChannelCountMode)

Update the channel_count_mode attribute

fn channel_interpretation(&self) -> ChannelInterpretation

Represents an enumerated value describing the meaning of the channels. This interpretation will define how audio up-mixing and down-mixing will happen.

fn set_channel_interpretation(&self, v: ChannelInterpretation)

Update the channel_interpretation attribute

fn channel_count(&self) -> usize

Represents an integer used to determine how many channels are used when up-mixing and down-mixing connections to any inputs to the node.

fn set_channel_count(&self, v: usize)

Update the channel_count attribute