I prefer moving all the clips that need the same type of repair into the same track so I can correct all of them in the same place and with similar settings.Īfter importing the clip, select the track where you want to apply an effect. (You can see the noise in the thickness of the “silent” portion of the clip before the interview starts.)Įffects can be applied to clips or tracks. This is a clip from a trade show interview, with crowd noise throughout. The bad news is that it requires a short section of noise before your essential audio starts, then fades that noise out as the clip plays. The good news is that it is, essentially, automatic. This first option is available in the Multitrack mix. ![]() However, syncing these new recordings with the originals is time-consuming and tricky. This ALWAYS yields the best quality with the greatest control. If you want to remove noise, your best – and sometimes only – option is to re-record your actors in an acoustically-treated room. After all, hearing the sound of the location is why we went to that location in the first place. On the other hand, most of the time we don’t want to remove these sounds, we simply need to reduce them. Removing voices behind your actors can be very, very difficult. Worse, the frequencies of the talking you want to remove are, essentially, the same as the frequencies of the talking you want to keep. Machine noise, like fans or air conditioners, are higher frequencies, but, generally, defined by some very specific pitches. (We use “Hz,” or “Hertz,” as the abbreviation for “cycles per second.”) Low frequency hum is around 60 Hz, so it is easy to separate voices from hum based on this frequency difference. Human speech is roughly 200 cycles per second to about 6,000 cycles. Why? Because all sounds exist as a series of rapidly changing frequencies. The hardest noises to get rid of are echoes and people talking in the background. The easiest noises to get rid of are low-pitched hums. Machine noises are interwoven with everyday life unless “everyday” is the Middle Ages. ![]() But, in a sad death scene, a cheering crowd is distracting. Noise is anything you don’t want to hear in your clip.įor example, in a football video, a cheering crowd adds energy to your video. However, it is often best to clean-up audio in a dedicated audio program, such as Adobe Audition. There are some good noise reduction tools in Final Cut Pro X and Premiere Pro CC.
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