Hello friends, would you please tell me how I can make the patches that sound at the same velocity (regardless of keyboard pressure) use all the range from 1 to 127 velocity and volume? Thank you.

I would assume a patch that doesn't change the sound in response to Velocity has the Velocity Curve set to Flat [on the Main Page] -- setting it to one of the other options should provide a suitable response to varying Velocities. I've attached an Omnisphere course [at the top] -- video #11 shows setting the Velocity curve [toward the end of the video, around 3:45 on].. Here's the relevant manual page: https://support.spectrasonics.net/manual/Omnisphere2/25/en/topic/main-page09

Thank you so much for answering my friend. I forgot to mention that regardless of how the velocity curve is set to, some patches have a very limited range in volume (I would say between 90 - 127). I also reviewed the page you sent me but I couldn't find a solution for this. I remember Kontakt has a feature for this that, when the instrument doesn't have sensibility you add a modifier and then the volume of the sounds play according to the velocity. Any idea on how to do it? An example of the patches that have a very limited range in volume/velocity is the LA Synth Guitar that comes with Omsnisphere.

Again, I don't have Omnisphere here to check out a particular patch, but if a sound only responds to a certain Velocity range maybe there's a setting relating to [Velocity] Layers that could be involved..?