Tag: MODULATION (AUDIO)
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Modulation (Synthesis)
– Modulation (Modulator) is Designed to Control another Parameter within a Synthesizer – there are 3 Things that are Important in Modulation which is: a) Source of the Modulation (e.g. an LFO) b) Destination of the Modulation (e.g. an VCO) c) Amount (Depth) of the Modulation
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MSEG
– MSEG means “Multi-Segment” – Instead having a Fixed Envelope such as AHDSR, you can Draw your Own Points – it is often used as a “2nd Order Modulation”, which means when you have a Modulator Affecting the Parameter of another Modulator that is Affecting a Parameter of a Main Section of a Synth (e.g.…
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Phaser
– a Phaser basically Creates Several Notch Filters – the LFO Moves “Notch Filters” Across the Spectrum, thus Removing Frequencies from the Audio which Causes the Typical Phase Sound – with High Speeds the Phase may even Change the Pitch Sightly (causing an Effect similar to Vibrato) – Phasers are Naturally Filters and Gain Nothing…
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Pitch Shifter
– A Pitch Shifter Shifts All Frequency Content by Multiples, so that the Frequency Relationships in the Source File Remain Intact – e.g. when a Source File has a 100Hz Tone and a 200Hz Tone, Pitch Shifting it with a Frequency of 100Hz will Make the 100Hz = 200Hz Tone and the 200Hz a 400Hz…
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PWM / Pulse Width Modulation (Analog Synth)
General – while a Square Waveform has Equal Time between Maximum Voltage and Minimum Voltage, a Pulse Width is Essentially a Square Wave with an Adjustable Amount of Time in between Each Cycle before the Voltage Drops from Maximum to Minimum – the Percentage of Time that the Signal is High is Known as a…
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Ring Modulation
General – is a Type of Amplitude Modulation – similar to Tremolo, but the Difference is that the Frequency of Change in Volume is in the Audible Range of Frequencies – the Name Comes from the Actual Circuit that Creates this Effect – Basically it Multiplies 2 Signals together, thus Creating Frequencies that are the…
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Tremolo
– Tremolo is an Amplitude Based Modulation – a Tremolo Modulates the Audio Volume via an LFO – using a Different Phase for Both of the Stereo Channels gives you a Widening Effect – with Minimum Width this is Even more Audible because Parts of the Spectrum are “Fluctuating”, thus Complete Silence is Quite Rare…