how to correct old, muffled audio?

[Todd Kopriva]

You certainly wouldn’t do this in After Effects.

You’d use Audition or Soundbooth. Here’s a link to the Audition and Soundbooth forum:
https://forums.creativecow.net/adobeaudition

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Todd Kopriva, Adobe Systems Incorporated
Technical Support for professional video software
After Effects Help & Support
Premiere Pro Help & Support
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[Chris Wright]

you’ll need a good parametric sound program with a very precise equalizer like pro tools or even get by with soundforge, then start raising the mid’s 500hz and high’s 1k until they sound more human, then use noise removers.

https://technicolorsoftware.hostzi.com/

[Joe Daniels]

thanks for the pointers guys…I will definately check this out. I thought since after effects had “some” audio features, that I could use those. I do have soundbooth, I have just never really used it!