title: Audio file validation on voyager-laravel
body: <p>I need to validate audio files in bread, using laravel voyager, this is my code, but it doesn't works</p>
  
  <pre><code>{
      "validation": {
          "rule": [
              "required",
              "mimetypes:audio/x-wav"
          ]
      }
  }
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/mlwrV.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mlwrV.png" alt="enter image description here"></a></p>