Muffled audio from cooking show


I have two full-length audio recordings from my cooking show. One is from a wireless mic (first clip) and one from a high-end new HD camcorder (second clip). disappointingly, both sounded horribly muffled and static-y. I removed some of the background noise in both, but they still sound muffled.

Any suggestions to reduce the muffle and enhance clarity like a studio recording? I’ve messed around with the Equalizer to no avail, and am no expert when it comes to this stuff.

Here are the samples of the same clip from both sources. I can use either/or, although working with clip 2 seems to be the ideal candidate.

Would appreciate any suggestions with this!!

Both those versions (1&2) have bubbly digital artifact noises consistent with too much noise removal being applied, once created those bubbly noises cannot be removed.

Can you post an original unprocessed recording , (i.e. before you applied noise reduction or any other effect).

One thing I would suggest you apply before any noise removal is low frequency (aka bass) roll-off equalization …
bass roll-off equalization.png
Then apply noise reduction (if necessary) only using a portion of the recording which should be silent as the noise profile, then apply a noise gate to squelch the noise down to true silence during the silences.

Thank you for the super fast reply, Trebor!

I’ve re-uploaded two samples, again one from the wireless mic and one from the HD camcorder. These are from the original unprocessed recordings.

Thanks for those tips, I will have to give it a shot, did not have much like removing noise with Audacity as it did not quite sound right, I captured the noise profile but it didnt come out the way I expected??

There are two different problems.

On the HD cam recording the sound quality is pretty good, but because the microphone is a long way from the person talking it is picking up a lot of the “room sound” which is the sound bouncing around the room. There is also a little “noise” from the camera. The noise can be cured fairly well using noise removal. For best results, start all of your recordings with say 10 seconds of “silence”. You can then use that “silence” for creating a good “Noise Profile”.
The echoes cannot be removed.
Here’s what I get using the gap between 10 and 11 seconds to create the noise profile (the gap is only about half a second, which is a bit too short - 5 seconds or so of silence is better).

On the wireless mic recording there is a lot of noise and very limited audio bandwidth - there are no high frequencies above about 3000 Hz so it will be impossible to get better than telephone quality using this equipment. Here I used the Equalization effect to remove all frequencies below 100 Hz, then used the “silence” between 9 and 10 seconds to make the noise profile.

This sounds muffled because the radio mic is cutting off all frequencies above 3 kHz.

Is your wireless mic a lapel microphone?
Does your camcorder have an input for an external microphone?
If the answer to both is yes, then you may get better results by using the lapel microphone plugged directly into the cam corder, cutting out the wireless connection.