How does Polyphone handle sample volumes

• BA 39 0

  Message from batata004 on …
  Hi,
  
  I have an instrument with 3 samples for each note (there are only 60 notes). One set of samples is for the velocity range 0-40, the other to 41-100 and third to 101-127.
  
  All the samples were recorded from an old Yamaha keyboard and I recorded those samples this way: I sent a command to the keyboard to record all first set of notes at velocity 40. Then I normalized the entire audio (to make the loudest note at 0db and all the others kept their relative volume) and exported each note sound to a specific file. Then I did the same for the velocity 100 and then with the velocity 127. At last, I recorded all notes for 3 sets of velocities.
  
  Then I imported it to Polyphone and I took a look at the default modulator that changes the volume based on the velocity. So I am wondering: how does SoundFont protocol make it work? I mean, I normalized all the 3 velocity ranges to make the loudest note of each velocity range go to 0db (always keeping the other notes at their relative volume, I didnt normalized every single note individually otherwise they would all sound at the maximum volume).
  
  So I am wondering: how does polyphone make the transition of volume between the velocity range. I Googled this a lot, I found other people with the same question on other forums and there was no explanation. Since there is a modulator, I think the volume varies linearly according to the velocity, right? But this assumes that the samples are at which volume? I dont want to mess with "Attenuation (db)" for each note/velocity range because I already recorded all the sample at the same exacly velocity so their relative volume is perfect (exactly as sounded in the old yamaha keyboard). Or do you have a better method for me to sample this instrument at 3 velocities?
  
  Thanks a lot! This software is AWESOME! I use it every month to improve my learning into music.
• BO 304 14

  Message from bottrop on …
  the soundfont protocol mimics velocity by manipulating Attack, Volume and Filtering, just like your Yamaha synth does.
  attachment; same sample played at different velocities
  regards bottrop
  

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