Phase Modulation Synthesis Music Box - YouTube

They calculated that the spectral broadening due to self-phase modulation should have been 910 cm−1, but their continuum was greater than 3000 cm−1 ...

Synthesis by Phase Modulation and Its Implementation …

A related type of sound synthesis called phase distortion is used in the Casio CZ synthesizers

He mentioned how FM synthesis is actually Phase Modulation


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> I am trying to correct some factual errors in wikipedia regarding FM
> synthesis (aka phase modulation.)
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> My current corrections are in italics.

Synthesis of optimal periodic signals with phase modulation

frequency) of the sidebands will follow the basic rule:where k is the order of the sideband and generally ranges from 0 to the modulation index + 2Thus, for example, a carrier frequency of 400Hz with a modulator frequency of 100Hz and modulation index of 1, will produce a spectrum with frequencies as shown in the following table:The sidebands would in this case seem like harmonics of a 100Hz tone, with partials at:100Hz, 200Hz, 300Hz, 400Hz, 500Hz, 600Hz, 700HzIn order to grasp the implementation of Frequency Modulation in CLM (or in any other system for that matter), it is important to understand something about phase increment.

The VZ-1's synthesis method (

03/05/2012 · 4-voice polyphonic mini music box

Designed to provide a powerful, flexible sampling engine for modular synthesis, the ASSIMIL8OR Multi-Timbral Phase Modulation Sampler module is the latest incarnation of Dave Rossum’s decades-long pioneering of affordable professional sampling technology.

FM Synthesis | The Synthesizer Academy

Let's say you have a carrier frequency of 200 Hz and a modulator frequency of 100 Hz; coverings occur starting with the third undertone (which is also 100 Hz and the following 200, 300, etc.), which result in amplifications and suppressions according to phase length.The advantage of FM synthesis over additive synthesis (the simple addition of sine waves) is that you only need two oscillators to make a rich and complex sound (you just have to change the frequency and especially the amplitude of the modulator!).

Casio made Casio CZ synthesizers|five different synthesizers using this method of phase distortion synthesis.

Frequency modulation synthesis - Wikipedia

FM synthesis is very good at creating both harmonic and inharmonic ('clang', 'twang' or 'bong' noises) sounds. Complex (and proper) FM synthesis using analog is not generally feasible due to their inherent pitch instability, but FM synthesis (using the frequency stable phase modulation variant) is easy to implement digitally. As a result, FM synthesis was the basis of some of the early generations of from Yamaha, with Yamaha's flagship synthesizer being ubiquitous throughout the 1980s. Yamaha had patented its hardware implementation of FM, allowing it to nearly monopolize the market for that technology. developed a related form of synthesis called , used in its CZ series of synthesizers. It had a similar (but slightly differently derived) sound quality as the DX series.

Now what happens when the phase-increment value is not a constant, but rather changes during the course of a note.

What is Phase Modulation? - Vintage Synth Explorer …


Internally, phase distortion synthesis works by reading a sine wave table stored in memory. The most significant bits of an initial linear frequency counter is under envelope control transformed into a secondary phase angle signal which is then used to read the sine wave. Depending on the wiring, the transform will change and a wide variety of waveshapes can be produced.

In PM synthesis, the phase angle of the modulator is changed rather than the frequency

Frequency Modulation (FM) - Center for Computer …

Phase distortion synthesis is a synthesis method introduced in 1984 by Casio in its CZ range of synths, and similar to Frequency modulation synthesis in the sense that they are both built on phase modulation. Basically a sine wave is played, but by modifying the phase angle, the sine wave is bent out of shape.