In this free video tutorial, Pro Tools Expert team member Julian Rodgers uses the Elysia Alpha Compressor from Plugin Alliance on the vocal buss of a session to demonstrate the alternative topologies and the auto fast feature offered by this software emulation of Elysia's hardware unit.
Feed-Forward Vs Feed-Back Compression
In this tutorial, Julian also explains the difference between feed-back and feed-forward compression and demonstrates the difference the two designs achieve on a vocal. In addition Julian uses the Auto Fast feature of the Alpha Compressor, a control which introduces a degree of automation to the attack time of this compressor in a similar way to the auto release controls found on many compressors.
This compressor features the Niveau filter as found in the free plug-in of the same name. For a full explanation of this filter see the dedicated tutorial on this plug-in.