33. What is the official difference between tremolo and vibrato? (Hint: one of t

Question

33. What is the official difference between tremolo and vibrato? (Hint: one of them has to do with quickly warbling the pitch-frequency, and the other has to do with quickly warbling the volume-amplitude.) 34. Do triangular waves sound different from sine waves even if they have the same frequency and amplitude? (Yes - different waveforms have different sound qualities violins sound different from flutes even if they play the same "note," which usually means that only the fundamental frequency is guaranteed to be the same.) 35. What is white noise? Pink noise? Why is pink noise useful? 36. What is a Helmholtz resonator? 37. Why would playing white noise near any resonator be useful? 38. What is a resonance curve and how does it relate to an object's/instrument's Fourier spectrum? 39. I stand a closed tube on one end and fill it half with water. As the water fills the tube, I hear a noisy (that's a technical term!) sound which changes in pitch. Which way does it change pitch (frequency), higher or lower as it fills up? Why? 40. I empty that tube and start over with hot water. Naturally, it heats the air above it. Will I hear a different set of frequencies as a function of how full it is at any given moment? Yes. Which way do they all shift compared to the colder water? Higher or lower? WHY?

Explanation / Answer

Vibrato:

Vibrato is a pulsating sound effect produced by slight and rapid changes in the pitch (frequency) of a note. It has been used for centuries as a technique for adding expression and coloration to music, and it is characterized by two parameters, depth (the amount of pitch variation) and speed (how quickly the pitch is varied).

True vibrato effects are available in certain stompboxes and effects processors, but rarely built-into amps.

Tremolo:

Tremolo, on the other hand, is a trembling or “shuddering” effect produced by slight and rapid changes in the volume (amplitude) of a note. It, too, has existed for hundreds of years as a musical technique, but for our purposes it is a much more recent technical innovation used in amplifier design. It is characterized by similarly labeled parameters, including depth (the amount of volume variation) and speed (how quickly fluctuations in volume are varied; also variously labeled as rate or intensity).

Tremolo effects can be found on many amps, such as some Marshalls, Fenders, and Voxes, as well as in stompboxes and effects devices

In short: Vibrato deals with change in pitch. Tremolo deals with change in volume

According to Chegg guidelines I can answer one question at a time, so please post other questions separately. I hope this would be helpful, please rate..

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