Pure tone: The true sound of a musical instrument. The so-called truth, that is, the ear hears, the ear listens to be real. By electro-acoustic conversion, the same ear listening is real.
Sound Dye: Musical instrument is not good, electroacoustic equipment is not good, will bring sound dye, delay echo is also sound dye. Tone and noise are all outside the pure tone.
Noise: Any noisy instrument sound is not qualified. The noise is expressed in decibels, which is the sound size. Noise originates from electronic circuits and environmental tones. Tone dyeing is a special type of noise.
Distortion: the degree to which the original signal differs is called distortion. Signal reduction distortion is called waveform distortion, which is called clipping distortion. A kind of electric guitar special clipping distortion, can become a musical instrument is a sophisticated.
Pure tone, sound dye, noise