#Blender video editing noise reduction software#
Color grading: DaVinci Resolve is widely regarded as one of the best color grading software available.
The audio on the second recording can then be used with certain software as a reference for noise reduction in that it can be used to cancel out the noise in the original recording.īut, as AJ Henderson points out - if the background noise is particularly disruptive, there's a limit to what you can do with that recording material and a re-shoot or audio dub will no doubt be the only way to cope with the results. Again, a muff or wind cheater would be the weapon of choice. This may not work too well with something organic like wind however. If a second recorder isn't available and the noise is fairly constant then just record a good sized chunk of the background noise separately. Often, low and high frequencies from things like air conditioning machines, compressors, refrigerators etc might be a lot louder in the recording because of the dynamics of the recording system. I have first hand experience of this on Coronation Street where the 'whistling' sound on the newly constructed Beetham Tower nearby was causing havoc in the recordings.
#Blender video editing noise reduction tv#
This has often been done on TV dramas where shooting on location is open to the (audio) elements so to speak. If you can get your hands on a large piece of soft foam (1m x 2m) then it could be used as a wind break if positioned between the wind and the camera.Īnother way to reduce noise is to record an audio 'wild track' at the same time on another machine but keep it significantly far away from your subject's voice / the sound your subject is making e.g. In the broadcast industry a boom microphone usually has a 'zepplin' or wind cheater covering it. Otherwise there are now DSLR focused wind deflectors called Wind Jammers and Micro Muffs. I can't say how truly effective it might be (and imagine that there is some loss somwehere because of the processing.) The EOS 650D does have a wind noise reducer built in. This is why audio recordings are done with multiple tracks rather than recording everything to one output.Īs far as what you can try doing with the existing audio, any software with noise reduction or wind reduction can try to reduce it or you can try to EQ the frequencies of the majority of the noise down some to help suppress it, but short of re-recording the audio and dubbing (or just re-shooting) there isn't anything I know of that will get rid of it entirely. The real world doesn't often fit digital models very well and thus there isn't a sure way to separate one part of the signal from another part.
Once something is mixed in to a signal, it's part of the signal. The old adage crap in, crap out still greatly applies to audio. You can reduce it some, but it is unlikely to be able to be removed entirely and may well produce artifacts in your audio in the process. Once it is there, particularly if it is really loud, there isn't a whole lot you can do about it that will result in satisfactory audio. The use of a wind cover can help break up the wind and prevent it from interfering with a recording. The best bet is to avoid getting it on the recording.
0 kommentar(er)
