I have several clips where I want to increase the bass of the audio to make the voices deeper. The audio content is people talking in normal voices; there's no music or singing.

To edit, I'm using Resolve 12.5, which has no audio plugins of its own but accepts VST plugins. I'm also open to installing additional software if necessary.

I'm relatively new to audio editing so perhaps I'm missing something obvious, but it seems like most commercial audio plugins (such as MaxxBass) are intended for music, not speaking voices. What can I use to increase/deepen the bass?

  • Izotope has great plug ins but they are expensive. In the end all you really need is an eq.
    – Alex
    Jan 14, 2017 at 18:13
  • EQ won't make the voices deeper, it will just bring out the lower frequencies of the voice, meaning it could just sound muffled. If you want to actually make the voices deeper could try a pitch shifter - there's 38 free pitch shifter effects listed on this page, that might be a start: vst4free.com/index.php?plug-ins=Pitch
    – stib
    Jan 14, 2017 at 22:57
  • And then the voice is going to sound completely different...
    – Alex
    Jan 15, 2017 at 17:36

1 Answer 1


An article by Larry Jordan gives the following idea for using the Equalizer effect in FCPX:

To warm a voice, here are the settings I recommend you start with: Men: Add 3-5 dB around 180 – 200 Hz.

There's more info in the article. Based on this, I was able to make several improvements to the audio in Resolve.

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