Apps like soundsoap3/20/2023 ![]() There are a couple of key concepts when using any audio noise reduction application.įirst of all, noise reduction applications require you to identify in your audio recording file a segment of at least four or five seconds during which the noise and only the noise is heard. I used SoundSoap in the 2000s for audio noise reduction on self-produced DVDs of high school music concerts and plays produced by The Children’s Theater in Arlington VA. BIAS Corporation, until it went bankrupt, offered an application called SoundSoap that did only audio noise reduction, and nothing else. The Adobe application called Audition, a competitor for Audacity, includes a variety of noise reduction capabilities. Personal computer applications have been available to reduce noise in audio recordings for quite some time, 20 years or more. If you do not believe your live recording includes noise, then listen to it using earmuff-type headphones that exclude the sounds around you. It goes all the way back to the ancient time when the more important sounds might, to paraphrase a famous rock musician, potentially become our lunch or might try to make lunch out of us. Your ears might not notice noise, but that is a part of human audio perception: we filter out the noise and pay attention to other, possibly more important sounds. Outdoors, wind is almost always a part of the background noise, and in the car there is engine noise, HVAC fan noise, and sometimes surrounding traffic noise included. I dictate memos to my tablet audio recording application while in my car or hiking in the woods. When we make an audio recording, usually some noise is included. ![]() This article describes the use of a feature of Audacity, the popular digital audio editor application, called noise reduction. By John Krout, Member, Potomac Area Technology and Computer Society, VA ![]()
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