![]() But if your PC has analog inputs, and you hook up say, a video camera to those analog inputs and play the video through the speakers, and your PC allows analog recording, Audition can record the audio track of the video. Exceptions include an inability to play the video through your computer's speakers, or issues with your PC and Digital Rights Management if your hardware enforces it. Is it possible to use Adobe Audition to edit the audio track in a video? Yes, with some execptions. If you have no way to isolate the sound you want removed so you sample only that, noise reduction is generally ineffective.ฤก. It will reduce but not completely remove that sound and all similar sounds. Then the software scans the audio file and dampens way down the frequency response of the captured sound. ![]() To do noise reduction with Audition, you must first capture at least a brief couple of seconds of just the sound you want removed. So hum and hiss are much easier to reduce than voices, trumpets, the drum kit, the background noise you hear in a restaurant, etc., all of which span a wide range of frequency response. Same thing when you try to remove voices from a video. It sounds different to you, but it looks the same when subjected to digital frequency analysis. You can remove a vocal if the recording was made in isolated tracks and you can delete the vocal track, but you can't remove the sound of the singer's voice once she's mixed in with a band, because her voice shares many sound characteristics with other instruments. This is why ryclark used the "unbake a cake" metaphor: you can't remove just the sugar from a baked cake without affecting other ingredients. What's hard for many people to understand about digital noise reduction, and this is true for any audio software including Audition that can do it, is that there is usually no way to completely isolate and remove any one sound from a mixed-down recording assuming it has similar frequency response properties to other sounds on the recording. ![]() Adobe Premiere or the right piece of video gear can do that part, but not Audition, AFAIK. Then when you're done, if you still want the audio track synched back up with the video, you'd have to do that as well. So you need to have a way to isolate the audio track from the video recording, either by using Audition to rip the audio track digitally or make a real-time analog recording of the video's audio track as it is played through your sound card, to get it on your hard drive, so Audition can work on it. ![]() When Audition does noise removal (more precisely reduction), it does it by working on an audio file on your hard drive, not live as you play back or make the recording. Audition can work on the audio track of a video just as it can on any other audio recording. ![]()
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