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頻率; 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 (對應的中文在這兒可為:頻率,聲頻,音頻(率),音調):與聲音的頻率(frequency)有關。頻率高則聲音高,頻率低則聲音低。 頻率是指物體震動的快慢(頻率高,音調高,就是尖銳的聲音);在單位時間內完成全震動的次數;頻率的單位是赫茲(Hz)。 High-pitched: 單位時間內音頻高(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(音強):又稱響度,取決於聲音的幅度。於振幅(Amplitude)有關。也即振幅決定聲音的大小和強弱。振幅就是物體震動的幅度(振幅大,響度大);振幅是震動物體離開平衡位置的最大距離,叫震動的振幅。單位是:m;用 A來表示。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