I highly recommend spending time listening to Chet Baker's Big Band album. It was one of the first big influencers on my concept of sound, as far as what I thought the trumpet should sound like.
When I heard the Chet Baker Big Band (given to me on a copied tape cassette from one of my dad's, in the sixth grade), I knew that CB's sound was different.
I didn't hear a blaring, "annoying" trumpet sound, but a lyrical and "cool" trumpet playing. I knew I was going to try and adopt that concept of sound, so I listened to this album for years, to be frank.
I still get satisfaction from hearing it to this day.
I highly recommend getting a legit copy, either off Amazon, iTunes and you can even get copies on Ebay. Links provided below.
DM or email me with any questions and trumpet coaching advice I can provide. Be happy to help. And feel free to leave a comment on your thoughts.