When time it comes to my sound, which is the champion sound
The bugle has blown fi many times, and it still have one more time left
Besides it sounding great with the beat, Kanye could have added this as a bit of a reference to him and G.O.O.D. Music’s sound. They consider their sound (songs, beats, artists) the best, and even though all of them have come out with music, they’ll still be blowing (making music) for a while.
This might also refer to a line in Revelations about the angels blowing trumpets seven times and causing destruction to a third of the earth and its people in various sadistic ways.
Thirdly, the bugle blowing suggests a sign of respect, such as you would see in movies when a king/prince/high ranking authority would make an entrance and men would be playing trumpets. This is implying that the more times the bugle has blown, the higher their status is, also in reference to the next line, where he says that they have many stripes on their shoulders, signifying their status.
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