This post focuses on the process of removing noise that has made its way into your content using digital processing.
While it’s always best to avoid noise in ther first place by recording in a quiet environment, using well grounded equipment, and using balanced cables, it’s sometimes unavoidable that some noise will have crept its way into your recordings. Also, often you’ll receive tracks from another engineer or an artist that have been recorded using less-than-optimal conditions. To illustrate the techniques used in this post, I’ll be using a free, open source program called Audacity (I’m a big fan of FOSS software, but most of the FOSS audio software has a ways to go before it is as effective and as stable as commercial software. I use Audacity in this example mostly because the techniques are more or less the same regardless of what application you use.)

