title: MIX Wav file and export it with Web Audio API
body: <p>I'm a web developer from japan.<br>
  This is first question on stack over flow.</p>
  
  <p>I'm creating a simple music Web application now.<br>
  making a music system program is a completely beginner, so I am struggling to implement it.</p>
  
  <p>As a result of various investigations, I noticed that using the Web Audio API was the best choice,
  so, I decided to use it. </p>
  
  <h1>▼ What I want to achieve</h1>
  
  <ul>
  <li><code>Multiple Wav files</code> load with the Web audio API can be grouped into <code>one Wav file</code> &amp;To be able to download from the browser.  </li>
  </ul>
  
  <p>For example, load the multiple wav file like guitar, drum and piano, and 
  edit it on the browser, and finally output it as one Wav file.
  Then we can download that edited wav file from the browser and we are able to play itunes.</p>
  
  <h2>▼ Question</h2>
  
  <ul>
  <li>Is it possible to achieve this requirements by just using web audio api ? </li>
  <li>or we need to use another Library ?    </li>
  </ul>
  
  <p>I checked Record.js on github but development has stopped about 2 ~ 3 years and has many issues and  I can not get support. so I decided not to use it.
  and also I checked similar issue <a href="https://stackoverflow.com/questions/16969201/web-audio-api-scheduling-sounds-and-exporting-the-mix">Web audio API: scheduling sounds and exporting the mix</a></p>
  
  <p>Since the information is old, I do not know if I can still use it 
  thanks. </p>