Percussion instruments are instruments that produce sounds by striking, hitting, scraping, or shaking. Every orchestra has a percussion section. This includes instruments such as snare drum, bass drum, cymbals, triangles, and tambourines, among the other non-percussion instruments. The key is that all percussion instruments keep a certain rhythm. In addition, they make specific sounds and…
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Broadly speaking, keyboard instruments are musical instruments you play with a keyboard. The most popular examples are pianos, organs, and electronic keyboards, such as synthesizers and digital pianos. They also include celestas and carillons, for instance. The term keyboard is often describes keyboard-style synthesizers. And the player can use the keyboard itself to control several…
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Let’s start with the basics: here we are going to talk about guitar amplifiers. First, in general terms, an amplifier is a device that amplifies the signal. It’s a unit capable of strengthening an audio signal that is provided from an electric guitar, an acoustic guitar, or bass guitar. After this, an altered signal is…
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Amplifiers, also known as an electronic amplifiers or amps, are electronic devices able to increase the power of a signal. This signal varies in time, voltage, or current. To further comprehend this, let’s remember that an amp is an electronic circuit that has two ports. It uses electric power generated from a power supply to…
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Class A amplifiers are the simplest form of a power amp. The reason is that, to produce an inverted output, they use a single switching transistor in its standard configuration. Since the transistor is always on, it is able to conduct during the complete cycle of the input signal waveform. The Class A amplifier configuration…
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When in an inactive state, Class B amplifiers have many advantages over the Class A amps. The reason is no current flows through the transistors. On the one hand, neither the output transistors nor the transformers dissipate any power when the signal is off. On the other, Class A amplifiers require a substantial amount of…
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Class AB amplifiers are a combination of Class A and Class B amps. They are also a specific variation of a Class B one. Both Class A and Class B conduct, at the same time, around the waveform’s crossover point. This action removes the crossover distortion conflicts of the latter. For its convenience, the Class…
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Class G/H amplifiers refer to different designs that boost Class AB output stages. Both denominations, either G or H, are interchangeable. Yet, the terms vary from one manufacturer to another. Experts commonly use these devices in large audio amplifiers. They have effective techniques that allow them to achieve greater efficiency with low distortion. Class G…
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As you can imagine, early drum machines are the ones that made modern drum machines possible. To pay homage to these predecessors, here we offer the highlights of their history. Early Drum Machines: a History An Arab engineer invented the first programmable drum machine. It appeared in Ismail al-Jazari’s The Book of Knowledge of Ingenious…
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Class D amplifiers, also known as a switching amplifiers, are electronic amps in which the transistors operate as electronic switches. These transistors are usually MOSFETs and they operate by switching back and forth between the supply rails. They are fed by a modulator using diverse techniques that encode the audio input into a pulse train.…
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