With the noise selected, choose Effects menu > Noise Reduction/Restoration > Capture Noise Print. The best place to look is the short space between sentences however, be careful not to include a breath from your speaker. This needs to be at least 1/4 second to get a decent sample. Select as much “pure noise” as you can find in the clip. Unlike Adaptive Noise Reduction, if you want the noise reduced without a fade, then you should use this technique.Īfter importing the clip into Audition, double-click the clip to load it into the Waveform editor. 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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