Sometimes the sound that is recorded with the picture isn't right, it may have too much background noise or wind may have blasted the mic. In other instances the video doesn't have any sound with it. This is the case with the time lapse video of the cob works. So that the finished video is a satisfying sound as well as picture experience I've decided that there should be a relevant sound to accompany it. To this end I walked out onto the cob with a sound recording machine and recorded the sound of work in progress for a while.It includes birds and traffic and is just what was needed. However to get it ready to use after I transferred the sound file from the recorder to the computer I opened it in a program called Sound Forge. This has allowed me to edit the bumping noises from the start of the file, where I put the recorder down and then remove the similar noise from the end.
This is the waveform display and you can see the left and right channels shown.
It would also let me add a fade at the start and end if I wanted to. One of the most useful tools it has is called normalization. This is very handy if a sound has been recorded too quietly as it analyses the whole file and then makes the loudest peak as loud as possible, this has the effect of turning the whole recording up and so more useful within whatever software the file is destined for, Vegas in my case.
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