Yeah, that’s pretty much a primer on how NOT to play trumpet samples..!
Where to start?!
Well, how about breathing? One of the first giveaways of the inexperienced brass emulator. The louder you play, and the higher you play, the shorter the phrase needs to be before the trumpeter would breathe. Try it for yourself. Sing along with your solos.... you’ll soon begin to hear how you need to break phrases up so that they are realistic. Your emulation will improve massively for this alone!
Then there’s that impossible gliss... ‘nuff said..!
Lastly, I’m not hearing any expression work. That’s the primary difference between a wind player and a keyboard player. Once you strike the note on a piano, that’s it. Your work is finished! On a wind instrument, it’s just the beginning. You can swell it, fade it, anything you like.
If you watch videos from the better orchestral libraries, you’ll see them using faders or breath controllers to control dynamics and timbre. This needs that badly!
Lastly is intonation... yes, you can hear it’s not perfectly in tune, especially as it goes upstairs, but that’s something the real player adjusts on the fly. And intonation will tend to be closer to pure intonation on longer notes and away from the extremes.
But all in all, I’d say that this sample set has potential. But the video shows how something that could be amazing can be so easily brought down by non-idiomatic playing. And the converse is true as well... a sample set you already have may fool some pretty discerning ears if simply PLAYED well!
So don’t think that buying fancy sample sets is the answer. Until your playing and phrasing get pretty close with what you have, spending a chunk of money on stuff like this won’t necessarily lead to much improvement!
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An arranger is just a tool. What matters is what you build with it..!