Press n or j to go to the next uncovered block, b, p or k for the previous block.
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import React, {useEffect, useRef, useState} from 'react';
import {Formant} from '../utils/pixiUtils/metaData/ImageMetaData';
import './vowelDetect.css';
import {SmileOutlined} from '@ant-design/icons';
import {isMobile} from '../utils/AgentCheck';
function getMonvingAverage(period: number) {
const arr: number[] = [];
let sum = 0;
return (value: number) => {
sum += value;
arr.push(value);
if (arr.length >= period) {
sum -= arr[0];
arr.shift();
}
if (arr.length < period / 2) return 0;
return sum / arr.length;
};
}
export const formants: Formant[] = [
{
label: 'A',
array: [],
},
{
label: 'I',
array: [],
},
{
label: 'U',
array: [],
},
{
label: 'E',
array: [],
},
{
label: 'O',
array: [],
},
];
interface VowelDetectButtonProps {
stream: MediaStream;
}
interface VowelInputProps {
vowel: string;
setVowels: (arg0: number[]) => void;
smad: number[];
}
function VowelInput(props: VowelInputProps) {
const doneClick = () => {
props.setVowels([...props.smad]);
};
return (
<>
<pre>
{props.vowel + ' '}
<button className="save-button" onClick={doneClick}>
저장
</button>
</pre>
</>
);
}
const smad: number[] = [];
function VowelDetect(props: VowelDetectButtonProps): JSX.Element {
const canvasRef = useRef<HTMLCanvasElement>(null);
const saveVowelDataToBrowser = () => {
localStorage.setItem('formants', JSON.stringify(formants));
};
useEffect(() => {
Iif (!canvasRef.current) return;
const ctx = canvasRef.current.getContext('2d');
const canvas = canvasRef.current;
Iif (!ctx) return;
const audioContext = new AudioContext();
const source = audioContext.createMediaStreamSource(props.stream);
const analyser = audioContext.createAnalyser();
source.connect(analyser);
analyser.smoothingTimeConstant = 0.6;
analyser.fftSize = 2048; //
const byteFrequencyDataArray = new Uint8Array(
analyser.frequencyBinCount / 3,
);
let aniNumber = 0;
const callback = () => {
ctx.clearRect(0, 0, canvas.clientWidth, canvas.clientHeight);
analyser.getByteFrequencyData(byteFrequencyDataArray);
const sma = getMonvingAverage(16);
smad.length = 0;
byteFrequencyDataArray.forEach(value => {
smad.push(sma(value));
});
smad.forEach((value, idx) => {
ctx.beginPath();
ctx.moveTo(idx, canvas.clientHeight);
ctx.lineTo(idx, canvas.clientHeight - value);
ctx.stroke();
});
aniNumber = requestAnimationFrame(callback);
};
aniNumber = requestAnimationFrame(callback);
return () => {
cancelAnimationFrame(aniNumber);
};
}, [props.stream]);
let canvasSize = '250px';
// mobile 환경 캐치
Iif (isMobile()) {
canvasSize = '130px';
}
return (
<div id="vowel-detect">
<div className="vowel-explain">
다음 모음을 발음하며 <br />
저장 버튼을 누르세요.
</div>
<div className="vowel-button-and-detect">
<div className="vowel-button-set">
{formants.map((value, idx) => {
const setVowels = (arg0: number[]) => {
formants[idx].array = arg0;
saveVowelDataToBrowser();
};
return (
<VowelInput
key={idx}
vowel={value.label}
setVowels={setVowels}
smad={smad}
></VowelInput>
);
})}
</div>
<canvas
width={canvasSize}
height="160px"
className="vowel-wave-canvas"
ref={canvasRef}
></canvas>
</div>
</div>
);
}
function VowelDetectButton(props: VowelDetectButtonProps): JSX.Element {
const [visible, setVisible] = useState(false);
const onESCKeyDown = (e: KeyboardEvent) => {
Iif (e.key === 'Escape') {
setVisible(false);
}
};
useEffect(() => {
window.addEventListener('keydown', onESCKeyDown);
return () => {
window.removeEventListener('keydown', onESCKeyDown);
};
}, []);
return (
<>
<Popover
placement={'topRight'}
visible={visible}
onVisibleChange={setVisible}
trigger={['click']}
content={<VowelDetect {...props}></VowelDetect>}
>
<a>
<SmileOutlined className="navbar_button" />
</a>
</Popover>
</>
);
}
export default VowelDetectButton;
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