Synthesis;
A synthesiser is an electronic instrument used in live performance and in the recording and production of music. Synthesis is a technique used in the production of electronic music. It is the process of generating sound by using electronic hardware and software from scratch.
So then what is modular synthesis? A modular synthesiser is a system that is made up of self contained modules giving the user more control over the shape of the sound that is produced.
The basics:
Oscillator;
This is the core component of the synthesiser. The oscillator is like a circuit that generates a frequency signal within the audible range. Synthesisers can have monophonic, duo-phonic or polyphonic oscillators and each of these can produce a different waveform and has its own distinct timbre.
filter;
Essentially a filter is a device and depending on the use or desired sound you can allow certain frequencies through a signal and remove others that you do not want to pass through. One of the filter options can include a high pass filter which allows high notes to pass through above the selected cutoff point and eliminates the low frequencies. This is also the same with a low pass filter except it will eliminate the higher frequencies at cutoff instead.
amplifier;
An amplifier is a circuit in which is used to boost low level frequencies to an audible range. An amplifier can also be used to distort sound by adding to the gain or power of the signal or also to reduce a loud signal to a level in which it is no longer distorted or in overdrive.
envelope;
In a synthesiser the envelope is a waveform that changes overtime. ADSR is a type of envelope and is usually accompanied by visual representation of a waveform. Attack, which is the highest or loudest point of the sound is the first part of the sound envelope. Decay, which is the slow let down of the audible sound is the second part and is when the sound starts to soften in intensity and loudness. Sustain is the length of the note and how long it is audible and at the same intensity until it dies out completely and release is the final part of the envelope and shows a visual representation of where the note has ended.
LFO;
Low Frequency Oscillators, or LFOs, are oscillators with a slower range. They are designed to cycle between minimum and maximum voltage at a speed which is set by a frequency parameter.Low Frequency Oscillators can often go slower than several minutes between cycles. Because of this, LFOs get used for cyclic modulation that is impossible to do with standard oscillators.
- V.
https://www.synthtopia.com/content/2018/04/16/10-ways-to-use-an-lfo-in-modular-synthesis/
https://www.youtube.com/channel/UCf5UKh_cj2_5pUomhyswWYQ
https://www.keithmcmillen.com/blog/simple-synthesis-part-4-lfos/
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