Welcome, and yes, pretty much any video editing software will let you do this. Usually when you import your footage you will see the audio on a separate track in your editing software. You can often simply drag the wave line up or down (and keyframe it) as and when you want to hear it. This is also usually supplemented with fader controls too.

In short - any of the popular editing suites will let you do this.

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Lloyd

That's my opinion. If you don't like it I have others

System: Apple Macbook Pro 17, and an external Freecom 500GB eSATA drive.
Software: Final Cut Studio 2 (FCP 6, Motion 3, Soundtrack Pro 2, Color, DVD Studio Pro 4, Compressor 3), Sonicfire Pro 4.5
Favourite Resources: Findsounds.com, Free DVD menus, Ken Stone's FCP Page, Wikivid