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  • How to control sound "pulsation" in legato patch?

    I use VI Special Edition Vol.1 with Vienna Instrument Pro v.2.5.

    For my purpose I would like to reduce too many sound "pulsation" in patch "05S VI Legato". I would like to get smoother sound. Which control or technicue I shoud use to do it? 

    Thank you.


  • Hi Abk,

    this is a problem I am having as well. The transitions from the piano to the forte layer in many legato patches are not great resulting in dramatic volume steps when increasing the velocity a tiny bit (the same holds for the full VSL libraries). There are surely also inherent changes in the sound character, but the main problem is the volume differences resulting in the pulsation you mention. This could easily be fixed and I am still hoping for library updates some day. An imperfect workaround is to use the velocity crossfade controller instead of velocity in which case these steps are smoothed out. It would be nice if VI pro could crossfade the different velocity layers when controlled by velocity as well, instead of merely switching them, which would likewise reduce these steps.


  • The way to avoid these dramatic volume jumps is to use the Expression controller in conjunction with Velocity X-Fade.  If you only use velocity X-fade, there will be an unavoidable jump in volume between the p and f layer.  However, if you lower the Expression (which is really just a granular volume control) to "smooth" out the volume jump, you can - in almost every case - get the desired crescendo/diminuendo.  

    I like to think of velocity X-fade as the "rough" volume control and Expression as the "fine" volume control.  Alternatively, you could think of velocity X-fade as "intensity" and Expression as "volume".

    - Sam