title: ffmpeg how to reduce bass and increase treble like audacity
body: <p>I have an mp3 file. I want to reduce bass and increase treble.
  I am trying:</p>
  
  <p><code>ffmpeg -y -i original.mp3 -af "treble=g=10" test1.mp3</code></p>
  
  <p>but its not same as the effect of Audacity->Effect->bass and treble (increase treble and reduce bass)</p>
  
  <p>below is the image from audacity:</p>
  
  <p><a href="https://i.stack.imgur.com/E9RZ0.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/E9RZ0.png" alt="enter image description here"></a></p>