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Questions on using AI's Sample Start (in Dorico)

dyross

Senior Member
Hi folks,

I'm strongly considering getting AI Nucleus and/or Solo this BF. I've never used an AI product, so I want to understand better how Sample Start works, and how it would fit into my workflow, before buying.

The way I understand Sample Start is all samples have up to (or exactly?) 250ms recorded audio "pre-pattern" before the beat or "sync-point". First, does that include shorts? Or, just longs/legato? From the video, it seems it's true for all samples, but 250ms before a short seems unnecessary unless the idea is to have the sample offset for every note (I'll get to that later).

So, a simple recommended workflow is something like "record at 0ms sample start, change to something higher and nudge the MIDI notes by that amount" Makes sense intuitively, but...

Let's say we're at 120 BPM. That's 2 quarter notes per second, or an eighth note per 250ms. So, if you have the sample start at 250ms, doesn't that mean that anything that's an eighth note or shorter will be 100% "pre-pattern" and none of the actually desired sample? Does that imply you need to tweak Sample Start based on the content passage?

In Dorico, you can have Dorico change the MIDI offset for any given "Playback Technique". So, can you change the Sample Delay per articulation, or is it always global? Can you automate it over the course of a passage (a good Dorico expression map could do this pretty nicely).

Thanks!
David
 
Last edited:
Sorry for the self-talk here, but someone on Discord responded to this:

Let's say we're at 120 BPM. That's 2 quarter notes per second, or an eighth note per 250ms. So, if you have the sample start at 250ms, doesn't that mean that anything that's an eighth note or shorter will be 100% "pre-pattern" and none of the actually desired sample?

By saying that you don't get silence because the audio for the previous note is still playing while the pre-pattern for the next note is playing. Is that true?

Someone could easily test this by rendering this MIDI on any short articulation with sample start at 250ms:
 

Attachments

  • Shorts - Full score - Flow 1.mid
    440 bytes · Views: 3
This is the strings Full Ens - Spiccato patch. Note that while there's 250ms available, it defaults to 125, so I just rendered both, as well as a version with the Tight button engaged, which sets the time to 0ms.

I did set the track's media playback offset to -250ms and -125ms respectively, so putting them in a daw should line everything up.
 

Attachments

  • Tight.mp3
    209.1 KB
  • 125 ms.mp3
    209.1 KB
  • 250 ms.mp3
    209.1 KB
Fascinating, thanks so much for doing that. So it clearly “works”.

What about a fast ascending legato run?
 
(Wow, no idea how this ended up in the wrong forum. Sorry! Mods, can you move it to "Sample Talk"?)
 
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