Faye Wong lost her voice during the 20 12 Spring Festival Gala. The so-called "broken sound" refers to people's heavy breathing, hoarse voice and high-pitched spikes when they are nervous.

Heavy breathing and hoarse voice mean that the loudness of the sound becomes smaller and the timbre changes; "High-pitched and harsh" mainly means that the tone of the voice becomes higher; Therefore, the three characteristics of sound: loudness, tone and timbre have changed;

Therefore, ABC is wrong; D is correct;

So choose D.