Can I fix audio recorded from a DSLR camera?!

[sarar66272626]

​How, if there is a way, can I fix an echo-y room audio recording?! I recorded video off of a DSLR camera and the audio was recorded separately, but I have somehow lost the audio so I am trying to salvage the video recordings by using the audio recorded from the back of the camera. Is there ANY WAY to fix this?! Thank you!

[ryclark · Accepted solution]

Very unlikely I'm afraid. Getting rid of reverberating room acoustic is virtually impossible. There are some apps that purport to be able to 'De-Reverb' but they don't work very well on speech and are rather expensive.

[SteveG_AudioMasters_]

In my experience, De-reverb tends to make things worse, not better...

[Bob_Howes]

Agreed.  Every deverb programme I've heard does little to help the room echo but also adds a ton of nasty artifacts.

I'm afraid the only solution to this is to not use the on-board camera mics for anything other than general atmosphere.  Any time you record a voice, you need a separate mic as close to the speaker as possible.  Thats why you see so many lavalier mics or sound recordists with a fishpole on professional stuff. 

Sorry.

[ryclark]

The OP did have a separate audio recording Bob but mislaid it.

[johnbb99]

In case it's useful to someone else with this problem, I find it can help to take out bass frequencies, and boost presence ones  [say around 3kHz]. You can't [as stated] remove the loose acoustic but you can make the [speech] audio more intelligable.
HTH