Fresh Air uses a proprietary psychoacoustic algorithm. It listens to the harmonic content of your track and selectively enhances the "air" frequencies (generally 8kHz to 20kHz+) without making the source sound thin or brittle. It effectively adds "breath" to a recording.
Try using two instances of Fresh Air. The first instance on an instrument bus (Drums) with Mid-High cranked. The second instance on the Master Bus with the High knob barely tickled. This cumulative effect creates depth. The individual elements have presence, and the overall mix has glue. The Verdict: Is It Worth It? To ask if Slate Digital Fresh Air is worth it is a trick question—it costs nothing. But regarding your time and CPU usage? slate digital fresh air
You will hear your mixes breathe for the first time. The high end will no longer be a source of fear; it will be a source of joy. That is the promise of Fresh Air, and it is a promise kept. Keywords: Slate Digital Fresh Air, free audio plugin, mixing high frequencies, vocal air plugin, dynamic high frequency processor, mastering plugin. Fresh Air uses a proprietary psychoacoustic algorithm