Hello,
I’ve noticed that after rendering an instrument part the generated audio part have a bit of delay as shown in the screenshot.
Any suggestion? Thanks
It is by design that the first few samples are somewhat of a fade-in, in order to prevent pops.
Fade in? I’m surprised by this! Assuming fade-in is supposed to happen, which seems very strange to me, the two files should cancel each other out by reversing the phase, but this doesn’t happen.
Okay, I’ll start to ask properly: Which VSTi are you using?
the same happens to me since…ever?
If this is from an instrument which uses samples (like Kontakt), then the length of the silent part at the beginning depends on the used library, and is often even different for the individual articulations.
To compensate, measure the difference between the start of the rendered part and the actual start of the waveform and use “Track Delay” with the result in ms.
(or with Cubendo 15’s Expression Maps, it’s now possible to set the negative delay time to individual articulations).
But if you used a synth instrument (no sampled sounds) in your example, then there shouldn’t be a gap at the start in general, but some synths have a pre-attack feature before the normal attack (like Zebra2/HZ), but you would hear that before rendering.
Thanks guys, I’ve learned that this happens using a Kontakt player instrument.
There is less gap using other instruments from Halion or Retrologue.
Thanks for all the suggestions 
i just saw that your track is a bass track. If it’s the NI Rickenbacker there’s a YT video of an user explaining that behaviour and also settings in the Rickenbacker VSTi to avoid this.