11.   Babbling is useful for learning how to produce the sounds.

12.   Both cards produce spectacular sound for gamers, though the SoundBlaster Live!

13.   Both methods produce sound of equal quality.

14.   A marvel of craftsmanship and acoustical engineering, the violin produced more sound than any stringed instrument to date.

15.   A single large speaker produces fine sound.

16.   A real bass pipe has harmonics that blend with higher-pitched pipes in a way that produces better sound, he explained.

17.   Adinolfi, a drummer himself, wanted a traditional acoustic drum that could produce digital sound using a regular drum hoop and skin, or head.

18.   All sounds are produced electronically.

19.   But the strategically placed padding means the piano does not produce much sound to begin with.

20.   But, Atema admits, many animals also produce sounds in ways that, to human ears, meet virtually any definition of music.