audio-stream.js

const http = require('http'),
    fs = require('fs');

http.createServer(function(request, response) {
    const filePath = 'test.wav';
    const stat = fs.statSync(filePath);
    const fileSize = stat.size;

    const range = request.headers.range;
    if (range) {
        const parts = range.replace(/bytes=/, '').split('-');
        const start = parseInt(parts[0], 10);
        const end = parts[1] ? parseInt(parts[1], 10) : fileSize - 1;
        const chunksize = end - start + 1;
        const readStream = fs.createReadStream(filePath, { start, end });
        const head = {
            'Content-Range': `bytes ${start}-${end}/${fileSize}`,
            'Accept-Ranges': 'bytes',
            'Content-Length': chunksize,
            'Content-Type': 'audio/mpeg'
        };

        response.writeHead(206, head);
        readStream.pipe(response);
    } else {
        const readStream = fs.createReadStream(filePath);
        const head = {
            'Content-Type': 'audio/mpeg',
            'Content-Length': fileSize
        };

        response.writeHead(200, head);
        readStream.pipe(response);
    }
}).listen(3000);