Knowledge base of frequency and amplitude regarding pitch and volume (for you informaiton):
·Wavelength; this is the distance from the crest of one wave to the crest of the next. ·Frequency频率; this is the number of waves that pass a point in each second. ·Amplitude [物]振幅; this is the measure of the amount of energy in a sound wave, a measure of how big the wave is.
Pitch (对应的中文在这儿可为:频率,声频,音频(率),音调):与声音的频率(frequency)有关。频率高则声音高,频率低则声音低。 频率是指物体震动的快慢(频率高,音调高,就是尖锐的声音);在单位时间内完成全震动的次数;频率的单位是赫兹(Hz)。 High-pitched: 单位时间内音频高(high-frequency vs. low-frequency)。
This is how high or low a sound seems. A bird makes a high pitch. A lion makes a low pitch.
Volume(音强):又称响度,取决于声音的幅度。于振幅(Amplitude)有关。也即振幅决定声音的大小和强弱。振幅就是物体震动的幅度(振幅大,响度大);振幅是震动物体离开平衡位置的最大距离,叫震动的振幅。单位是:m;用 A来表示。了oudness of sound (high volume): 音的振幅(amplitude)大 (loud vs. soft)。
Theamplitudeof a wave is measured as:
the height from the equilibrium point to the highest point of acrestor
the depth from the equilibrium point to the lowest point of atrough