辛达托福代报考位：到2016年7月18日上午托福官网没有释放考位，在此提醒广大考生抓紧时间报名，注意自己的考试时间，如对托福报名有任何疑问，欢迎咨询在线客服

TIMBRE is the tonal quality or color of a sound. This quality is determined by the wave shape, which is determined in turn by factors such as the shape of the vibrating body, its material (metal, wood, human tissue), and the method used to put it in motion (striking, blowing, plucking).

1. Vibrating Stimulus

(Drum Stick, Bow, fingers, pick)

2. Vibrating Body

(Drum Head, String, Metal, Air)

3. Resonator

(Body of Drum, body of violin or guitar)

4. Other

(Snares, guitar distortion, spider-web casing on balafon)

Each tone we hear is actually a composite of tones called the harmonic series. The pitches produced simultaneously by the vibrating sections are called partials, overtones, or harmonics.

The first partial, often called the fundamental, is the lowest frequency and is perceived as the loudest. This is what the ear identifies as the specific pitch of the musical tone.

TIMBRE: CLASSIFYING MUSICAL INSTRUMENTS

IDIOPHONES

Instruments made of naturally sonorous materials not needing any additional tension as do strings or drumskins. The basic question is how they are set into vibration.

Methods:

concussion (struck together)

struck

stamped

shaken

scraped

plucked

rubbed (friction)

AEROPHONES

Aerophones include what are usually called “wind instruments,” with the addition of a few instruments with a different acoustical principle called free aerophones. There are two essential factors: a tube enclosing a column of air, and a devise for setting that air into vibration.

大家在进行托福备考的同时，如果对考位方面也比较紧张，可联系辛达代报为您服务