upsample your wav file!
npm install upsamplemodule to upsample your wav file.
npm i upsample --save
let upSampledData = upsample(data, UPSAMPLE_RATIO)
data: the data of wav file with int16 type.
UPSAMPLE_RATIO: ratio of upsampling(default is 2).
Then...
``
import { upsample } from 'upsample';
var data = new Int16Array(
let upSampledData = upsample(data, 4)
``