Removing hum from audio

Lost the audio tracks from the mixer, so
all I have is the audio from the RED camera.  There is a constant hum.
I tried the DeHummer tool at different settings, no luck.
All I have is Premiere CS5, no other tools like Audition.  Is there a way to remove the hum
since it is constant?  The audio files are *.mov for some reason, so Audacity didn't help either.  Of all the scenes that could get screwed up, its the one with my five year old in it!  UGH!!!!!
Thanks for your time,
Stuart

Stuart,
Much will depend on the frequency range of the hum and on the frequency range of the Audio that you wish to preserve. This ARTICLE will give you some tips.
While I use Audition, SoundBooth (do you have that program, as it's included in most Adobe suites?) should be able to help, as can the great, little free Audacity.
Good luck,
Hunt

Similar Messages

  • How to remove hum from audio?

    I know about these options:
    Audio Enhancements - Equalization - Hum Reduction.
    Audio Enhancements - Audio Analysis - Hum Reduction.
    I may not be using these options right, but they can't help me.
    I know also that I can use the Graphic Equalizer, but I do not know which graph to adjust to remove the hum. Is there a role of thumb? Any YouTube tutorials anyone know? Plugins?

    The hum is my freezer in the background But it is not loud. I just don't like that I can tell that one voice clip ends and one starts because of the background. I have key frames fading start and end of each voice clip, which helps, but isn't there anything else I can do?
    To avoid that, you always record a few minutes of your room's ambient noise (or outside if you are outside). Get a lot of that sound with nobody talking or making noise. You then use that in-between your cut dialogue clips so they flow smoothly.
    You probably have a second or two in one of the clips where nobody is talking and you can grab that bit and copy/paste it in-between your clips.
    Also, FCP X has some room tones built in, in the music media folders. Just search "room tone" and you'll find several. You can pick one of those that sounds the most like the one you've recorded and fade in/out the beginning/end of those clips.
    If all else fails, you can put some royalty free music underneath and put a room sound FX on it to make it sound like it's a radio or TV in the room, in the background. This can hide audio issues well.

  • Removing Florescent Light Noise "Hum" from Audio Tracks using FCEHD

    I have some clips taken under florescent lighting where the hum was discernable even during the sound check. (I was using external Electro Voice hypercardiod XLR mikes plugged into my Sony DCRVX2100, powered through a surge protector, monitoring the audio with Bose QC2 headphones). Using the same camera, cables, and mikes under incandescent lighting that day was fine - no hum.
    Attempting to filter out the hum using the FCE Hum filter wasn't dramatically effective, even with repeated tests establishing that using a frequency of 60 hz, a Q of 40, a gain of -48, and the 1st and 3rd harmonics provided the most benefit.
    Additionally I tried again with the FCE 31 band EQ filter, anticipating that the 50 hz and 60 hz filters would provide very specific improvements. Also tried were the LowPass Filter and the 3 band EQ.
    I'd like to clean up the otherwise fine audio - any suggestions? I am considering buying a filtered power conditioner as I know that some of the problem can be "dirty" electricity resulting from the ballast of the florescent lighting.
    Also, I noted that the numeric values shown for the gain using the FCE 31 band EQ filter oftentimes lagged behind the setting of the slider: returning the slider to the middle "0" position frequently didn't change the previous value of the gain shown. Is this another indication that I should just upgrade from my PowerBook G4 with 2 Gig of RAM?
    Thanks!
    James Mackay

    Hello Jim,
    And welcome to the Final Cut Express forum.
    You are correct that the ballast generates the hum. Power conditioning is probably not going to reduce or eliminate it, because the old ballasts are magnetic. The only way I found to eliminate fluorescent noise at the source is to replace the ballast with an electronic one or replace the entire fixture with a T8 unit (they use electronic ballasts).
    Removing that hum probably can't be done in FCE. Sound Soap can probably do it however, with it's ability to +learn noise+ and then remove that specific audio. The regular Sound Soap works as a plugin for Final Cut, which enables you to apply it within FCE.
    At present there is also an 'SE' version available at 50% off however it only works in standalone mode, which means you would have to export the audio track from FCE, clean it and then re-import back into FCE.

  • Recorded too low...Remove hiss from audio?

    I'm a noob at Soundbooth and I'm hoping it will help resolve a problem. I shot a video and I think the audio (voice recording) is too low. While editing in Premiere I pulled the audio up in volume and it sounded acceptable... but when burned to DVD there is a hiss. Is there anything I can do with Soundbooth to fix the volume and eliminate the hiss.  The simpler the explaination the better. Thanks!

    re 1 & 3- there's a description of how to do this in the STP manual. Just look under the help section and it'll be there. Just read it this weekend and got it to work for me and believe me, I'm not the shapest knife in the drawer. One bit of advice, make an extra sequence before you export to STP so you don't mess up your original audio.
    Regarding how to remove the hiss, unfortunately it's not a one size fits all. Jay Rose wrote an article entitle "Shh- the silent art of noise reduction" or something close to that. Definitely try to find that article if you can at DV.com You can always try a low cut or shelf. Start at 130 Hz Male to 200 Hz female and back off if it cuts too off (makes it sound too thin). There's supposed to be a way to compensate for this by doing an eq bump 3 x the frequency you cut or something like that. You can also cut or shelve frequecies above 12000 Hz. Then there's using a downward expander, but that's a little tricky with what STP comes with stock imo. Expanders are better for film/video than noise gates as they are much less abrupt. I would use noise reduction as my last resort and almost never use it at all. A lot of these filters can be applied in FCP.
    Honestly, if you ask at the DV.com audio forum I'm sure they'll give you the advice you need. Jay Rose did write a book on post production audio that you might be interested in as well. Pretty much all of what I'm trying to tell you comes from it or that aricles. Unfortunately, I seem to have lost that book.

  • Removing echo from audio track.

    Hi
    I have audio recorded in a church which sounds great apart from the echo on it. Im at a loss as to which filter, if any will help remove it. Can anyone point me in the right direction?
    Many Thanks
    Adrian

    You may be able to reduce the level of echo by using a noise gate; the results will depend upon the nature and level of echo and also other background noise, but some reduction may be possible. Don't be too agreesive in the setting of noise reduction otherwise it will be very obvious that you are gating the sound and you will end up hearing the background sound coming and going as quite often heard on less well processed movies and tv productions.

  • Remove HUM from the System:

    Hi All,
    The HUM No generated in the system is wrong.
    The material are packed in the HUM.
    Now i need to remove the HUM form the System.
    How is it possible?
    Avinash

    Hi
    Could u tell us more, have u done HU packing in Outbound/Inbound delivery? have you packed using RF transactions?
    You can see HUs in deliveries, there also u can delete by selecting particular HU line.
    Rgds
    Ramesh

  • Removing lyrics from audio

    Is it possible to remove the lyrics, or voice, from a song track?
    Thanks for your help.
    Message was edited by: jeb

    http://www.bulletsandbones.com/GB/GBFAQ.html#removevocals

  • Low hum from audio out

    Hey guys, I've got my old iMac hooked up in the living room to be a network iTunes jukebox, and it works fine, but there's this ever present hum whenever the thing is plugged in. It sounds as if it's not grounded or something.
    Is that possible?

    I don't have a solution for the hum itself. However, if it is "noise" on your iMac's output headphone connector, you might be able to bypass it by using USB for output. Griffin Technology makes a device called the iMic. It has audio input and output, and goes through the USB port.
    http://www.griffintechnology.com/products/imic/
    I don't have that product, but I have a discontinued Griffin audio product called the PowerWave (also uses USB), and it works quite well.

  • Removing distortion from audio

    Hi guys,
    I recently filmed at a mini festival and got a little to close to a speaker, I stupidly left the mic on automatic instead of controlling it manually!
    Dumb move I know and I know ultimately it comes down to the raw audio but does anyone know what Final Cut Express 4 audio tools would be best to combat the problem?
    Also out of interest, the speaker was on my left side, am I able to control the audio in a way where i can lower the left sides volume and increase the right, does that make sense?!
    Any ideas?!
    Cheers

    Hi
    As You might guess - this is tough and often futile. AND I'm much of a paper and clip / trial and error kind of person.
    Left - Rigth balance
    • There are sort of Pan - function in FCE - never used it - the proper way is to learn to use this
    • I un-link the stereo pair of audio and with pen tool adjust amplification - by hand so that it sounds OK to me
    • or I export out as QuickTime and as .aiff - and do the balance in an audio editor like Audacity or Sound Studio etc.
    Noice
    • Wind - nearly impossibly to get good - You might try SoundSoap™ on the exported audio - will help a little.
    • Use Equalizer - also helps - take down everything under 100Hz and then fiddle with the rest to get an as good sound as You like. Still marginal effects.
    Or as TV-Broadcasters do - FAKE it by dubbing - Hard to do and most probably need of sound-engineer + people that are good voices - and TIME and Patience.
    Result can be excellent but the cost astronomical.
    Yours Bengt W

  • Removing Pops from Audio

    I cut some audio, but there's a pop where the person is ending one word and about to begin the next. What's the logical way of dealing with this issue?
    Thanks.
    - anthony

    Hi. Well I guess the "logical" solution is to re-cut the voice over. If that's not possible, zoom in on the waveform of the audio track and see where exactly the pop occurs. If it is between syllables you need to complete and start the words adjacent to the pop, hooray. Just highlight the pop-only waveforms and delete them. If, however, the pop (assuming it was caused by an explosion of air onto the mic) occurs when the speaker pronounces a "p" or another consonant, you can try reducung the lower frequencies with the audio EQ filter--for just that spot -- until the loud explosive fequencies are minimized. Anyway, whatever frequency range the pop is happenning in can be minimized by adjusting the EQ of that moment.
    Dual G5/2.5GHz/4.5 GB, internal ATA, G-SATA 500   Mac OS X (10.4.6)   Final Cut Studio

  • Remove echo from recorded person?

    I am trying to remove echo from audio that I recorded of a person speaking in a conference room.  This is a professional project and I need it to be done right.  I have tryed some fiters/effects in Soundtrack Pro but haven't had any luck?
    Any suggestions?

    Echoes are nearly impossible to remove for the simple reason that they exist in exactly the same frequencies as the original voice.
    You can try a noise gate (on the assumption that the echoes are at a lower volume). You'll need to go gently in this as often the effort to remove the echo makes the audio worse.
    You may have to re-record the person to get the audio. Unless you have access to a good ADR setup you'll probably end up running B-Roll on screen and using the new recording as a VO.
    Next time have someone on the set wearing good quality headphones who's job is monitoring and riding levels on the audio as it is being recorded. Then, you'll catch the issue before it becomes a problem.
    Good luck.
    x

  • Removing Wind Noise from Audio in FCP

    Is there a way to remove/filter wind noise from audio for use in FCP?

    I'm not sure if you're if your sarcasm is targeted at me or Apple but just to clarify:
    By rolling off the bottom end prior to using a Noise Print style NR technique you'll get a far better end result than just asking something like SoundSoap to decipher everything.
    Wind noise is dynamic. NR tools like SoundSoap and other basic noise tools do not adequately address it. Since much of the problem with wind is in the very low frequency range simply rolling that stuff off cleans up the signal significantly and sometimes is all you need. Adding noise print style NR after the LF has been eliminated will produce a much better result.
    Another technique for changing the perceived amount of interference from a dynamic source like wind is to copy a chunk of relatively clean ambient tone and pasting it over areas where there is noise but no dialogue. This step will obviously not help of a strong wind gust happens over the voice but it does improve the overall perceived quality of the recording. I usually don't offer this suggestion right off the bat because it's more of a surgical procedure which takes a bit of skill. What most people are looking to do is just clicking on the "remove noise" button.

  • How to remove noise from a recorded audio file.

    I'm a relatively new user. I recorded certain audio files which are noisy(humm or hiss). Can anyone suggest ways to remove noise from that clip? I tried Denoiser but it added further noise artifacts which were unpleasant to hear Need help. And pls dont ask me to rerecord it in a noise free environment!

    If you have some cash you go after 'Sonnox Restoreor' or 'iZotope RX'. Otherwise this might be of some help:
    http://www.howtogeek.com/howto/40469/the-how-to-geek-guide-to-audio-editing-basi c-noise-removal/
    Have a nice day!

  • How can I remove noise from the paparazzi's constant camera clicks?

    You know how annoying those camera clicks could be while you're trying to hear others talk!
    I tried using SoundSoap (the demo version) from BIAS-Inc.com but it cuts down on the whole audio as well so some of the speech gets lost. Is there another filter that can get rid just of the camera clicks? There's WAY TOO MANY of them and it's impossible to do the keyframes thing and get rid of each one separately and even if I did, I would lose most of the audio because they're literally all over the place.
    HELP ANYONE?? I would REALLY appreciate it...

    There is no real solution for your shutter clicks. As you have discovered, many of the cures are worse than the disease.
    It's something you will have to live with.
    If there is no lip-sync speech involved you can always remove the actual audio and replace it with something else.

  • How can I identify and remove duplicate file (audio & photo)

    How can I identify and remove duplicate file (audio & photo)?  I have quite a few libraries created as backup files.

    Terence,
    Yes, the duplicates appear in the iPhoto window. I have folders with same name occuring two or even three times sometimes with exactly the same set of photos (ie photos with the same ID) and sometimes with a limited set of photos. Other  folders appear only once.
    I normally take my MacBook with me if I'm shooting a lot of photos, such as on holiday, and then want to transfer them to my iMac when i get home. Other times I transfer the camera's memory stick directly to my iMac.
    I have great difficulty transferring the photos from my MacBook to my iMac. I don't want to store my photos on my iDisk due to the length of time it takes to upload them.
    Thanks again.
    Simon

Maybe you are looking for