Definite Pitch

我是繼 tony 之後第二個棄權……

兩個也是我的 fans，不好意思破壞感情……

棄權.............

2010-03-16 16:59:45 補充：
2個都是fans......

Definite Pitch(明確音高)的詳細解釋.：
音高代表聲音的基本頻率。並非所有的樂器會發出具有清楚音高的音符;敲擊樂器通常特徵分別在他們是否有特定的音高。一個具有明確音高的聲音或音符是可能或較容易分辨它的音高的。有明確音高的聲音具有諧波頻譜或接近諧波頻譜。
Pitch represents the perceived fundamental frequency of a sound.Not all musical instruments make notes with a clear pitch; percussion
instruments are often distinguished by whether they do or do not have a
particular pitch. A sound or note of definite pitch is one of
which it is possible or relatively easy to discern the pitch. Sounds
with definite pitch have harmonic frequency spectra or close to harmonic spectra.