Class: Yin

Constructor

new Yin(options)

Parameters:

Name	Type	Description
options	Object	Override default parameters. Properties Name Type Attributes Default Description threshold Number <optional> 0.1 Absolute threshold to test the normalized difference (see paper for more informations). downSamplingExp Number <optional> 2 Down sample the input frame by a factor of 2 at the power of downSamplingExp (min=0 and max=3) for performance improvements. minFreq Number <optional> 60 Minimum frequency the operator can search for. This parameter defines the size of the autocorrelation performed on the signal, the input frame size should be around 2 time this size for good results (i.e. inputFrameSize ≈ 2 * (samplingRate / minFreq)).

Source:

• common/operator/Yin.js, line 80

Example

import * as lfo from 'waves-lfo/client';

// assuming some AudioBuffer
const source = new lfo.source.AudioInBuffer({
  audioBuffer: audioBuffer,
});

const slicer = new lfo.operator.Slicer({
  frameSize: 2048,
});

const yin = new lfo.operator.Yin();
const logger = new lfo.sink.Logger({ data: true });

source.connect(slicer);
slicer.connect(yin);
yin.connect(logger);

source.start();

import * as lfo from 'waves-lfo/client';

const yin = new lfo.operator.Yin();
yin.initStream({
  frameSize: 2048,
  frameType: 'signal',
  sourceSampleRate: 44100
});

const results = yin.inputSignal(signal);