This is a little demonstration of the noise reduction feature of the Soundtract app. We use a true spectral subtraction technique which really eliminates background noise and it's all done in real time. You can define a noisy profile (a noisy portion of the audio file) or let the app do it automatically based on quieter regions.
![](https://i.ytimg.com/vi/2aPL3ZuoM6w/maxresdefault.jpg)