const ffmpeg = require('fluent-ffmpeg')

async function convertToLINEAR16(inputFile, outputFile) {
    return new Promise((resolve, reject) => {
        ffmpeg(inputFile)
            .audioCodec('pcm_s16le') // Set the audio codec to LINEAR16
            .audioFrequency(16000)   // Set the sample rate to 16,000 Hz
            .audioChannels(1)
            .on('end', () => resolve(outputFile))
            .on('error', (err) => reject(err))
            .save(outputFile)
    })
}

module.exports = convertToLINEAR16