Propellerhead PX7 Manual de usuario descargar pdf (Pagina 4)

PX7 FM SYNTHESIZER

Introduction

The PX7 Rack Extension is an FM synthesizer cloned on a classic Japanese FM synthesizer from the eighties. The

PX7 features six sinewave oscillators - or operators - which are used for generating sound, or for frequency

modulating each other.

The PX7 was designed to offer all the vast sound possibilities of “the original” but with a more user friendly front

panel. All parameters correspond exactly to the ones in the original instrument, which makes it possible to recreate all

the famous sounds. The PX7 also offers some additional macro controls which makes it easy to tweak presets with

great results.

A few words about FM synthesis

PX7 uses frequency modulation (FM) synthesis to generate sounds. Basically, FM synthesis is achieved by letting

sinewave oscillators frequency modulate each other in various configurations (algorithms) - at various levels and

rates. The sonic results of FM synthesis can vary dramatically; from warm bell-like sounds to weird noises - and

everything in between!

A significant difference, compared to analog subtractive synthesis, is the absence of filters. Instead of removing and

attenuating frequencies by using filters, overtones are generated by increasing the amount of frequency modulation.

That’s why you won’t find any filters in the PX7.

The scope of this manual is not to try and describe FM synthesis in detail. If you would like to know more about FM

synthesis, please do a Google search on the Internet. There are tons of interesting articles and resources that

describe FM synthesis and classic Japanese FM synthesizers.

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Propellerhead PX7 Manual de usuario Pagina 4