Trying to remove "hum" from a video created by digital camera

fjk6515 wrote on 2/20/2017, 7:42 PM

Most of the video I shot have a "hum" (for want of a better term). Problem is that there are no generally silent sections to isolate the hum. Yesterday I shot about 10 seconds with the same Canon camera trying to keep silent to just capture the hum.

Only problem is that I can figure out how to eliminate that sound using the audio cleaning tools in latest MEP. I'm not very skilled in some of the more intricate editing methods.

Anyone has any good pointers. I looked at a youtube video but it left me confused even trying to follow the steps.

Thanks in advance.

Comments

johnebaker wrote on 2/21/2017, 2:33 AM

. . . . I shot have a "hum" . . .

Were there fluorescent lights in the vicinity?

Try right clicking the audio on the video clip and select Audio cleaning - there are options there for cleaning up audio.

HTH

John EB

yvon-robert wrote on 2/21/2017, 9:25 AM

Hi,

Try to find the hum source in most case is high level record setup or something near the microphone recording. Could be a wireless microphone or fluorescent light. The easy way is to record without voice about 15 second to identify the hum noise but you need a software to clean the audio. The right way is to find the source to avoid the hum problem and the hum removing using a software.

Regards,

fjk6515 wrote on 2/21/2017, 9:44 AM

Hi,

Try to find the hum source in most case is high level record setup or something near the microphone recording. Could be a wireless microphone or fluorescent light. The easy way is to record without voice about 15 second to identify the hum noise but you need a software to clean the audio. The right way is to find the source to avoid the hum problem and the hum removing using a software.

Regards,

YR

Oh, I guess I was not clear. I believe it is camera noise since this occurs outdoors away from "interference" type noise generators. Although since there is no motor running (not changing zoom, etc), must just be internal hums or whirs or..... What got my attention this time is odd - I was videoing a small geyser basin and over the sounds of boiling and bubbling water and mud, I can hear this extra sound. It occurs in a number of videos of that basin. It is also in other videos. I may just try ignoring it.

johnebaker wrote on 2/21/2017, 2:38 PM

. . . . I believe it is camera noise since this occurs outdoors away from "interference" type noise generators. Although since there is no motor running (not changing zoom, etc), must just be internal hums or whirs . . . .

What make/model is your video camera?

. . . . I was videoing a small geyser basin and over the sounds of boiling and bubbling water and mud . . . . .

This could be a natural background noise - if the surrounding noise levels are fairly low then the camera would increase the audio gain thus amplifying the 'hum', which becomes obvious on playback.

. . . . It is also in other videos . . . .

Anything common in the location(s) they were recorded?

yvon-robert wrote on 2/22/2017, 10:30 AM

Hi,

You cannot hear the noise because is too low to be perceptible by you, but microphone can detect noise as low than -60 decibels (noise measurement). Record 15 second without voice and open the recorded file with any audio software that show the recorded wave. No noise is a flat line, noise is up and down wave measured in decibels. Check also the sound level in your camera normally we output sound voice at -6 decibels (green level) may be you push to red level for voice.

Regards,