This entry aims to explain how a voltage controlled amplifier works. It is a device that can modify the amplitude of a signal. This device involves two types of inputs: the carrier and the modulator. The carrier, also known as the signal input, is where the bipolar input comes in. The modulator, also known as…
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This entry explains the principles of envelopes. To begin with, an envelope signal is a subsonic, aperiodic, unipolar, and timed signal used to modify the volume curve of an audio signal. To better understand envelopes, you should also know what a gate signal is. The gate signal is a two-state signal that is capable of…
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A parametric equalizer is a device that helps edit the different parameters of an audio spectrum. The most common ones are gain or amplitude, center frequency, and bandwidth, which is the inverse of Q. This equalizer has a center frequency that allows the user to customize the equalization process by modifying a particular frequency. This…
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Tubes, or valve amplifiers, are audio processing devices praised for their unique sounds. People associate them to the vacuum tube components they contain. The first electronic amps used vacuum tubes. The combination of an electronic guitar with a tube amp is a perfect example, for it revolutionized the peculiar guitar sounds. Tubes: How They Work…
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Fuzz distortion is an audio effect that people typically associate to altering the tone of electric guitars, as well as other musical instruments and audio signals. Fuzz is an electronic distortion element that is capable of changing the whole sonic signature. Often, experts describe the rough sound resulting from it as thick and metallic. Fuzz…
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Tape saturation is a phenomenon that describes the moment when the voltage level exceeds the tape’s ability to record. This phenomenon focuses specifically on analog tapes. Tape Saturation: the Process The signal and the voltage travel at the same time. The signal is being sent to the tape while the voltage is sent an electromagnet…
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Bitcrusher is a type of audio effect that has a low-quality distortion and creates distortion by reducing the resolution or the bandwidth of digital audio data. The sound resulting from the bitcrusher mimics the sounds of metal and sand. It’s worth mentioning that the perceived sounds tend to change according to the use of the…
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Time stretching is an audio digital process; people also refer to it as time compression or time expansion. It involves the modification of a specific passage of time within an audio signal. This process does not alter spectral characteristics, such as a changing pitch. To achieve it, you’ll most likely need to use audible artifacts;…
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A vocoder or a voice coder usually compresses the human voice in a way in which it becomes more efficient when transmitted over the phone. People have used this technology for the course of many years. At first, it involved the splitting of voice sounds into separate frequency bands. After this, it involved the using…
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Talk box is an audio effect that takes advantage of the human voice. It’s a device that works by taking the unique qualities of the human mouth and vocal tract while lending them to a variety of instruments. A Summary of Human Anatomy: How Do We Talk? In order to understand the basic functions of…
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