The phrase 'sound bite' means a very short speech; usually on radio or television
Yes. In bite the long vowel sound is 'i'.
get a recording of the sound bite you want-and import it into an software editing program like cubase, cool edit pro, etc... crop the pieces you don't want and save the file. import or open your song...
Long vowel sound.
Yes, when the loudness is below 85 dBSPL.