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OPL
Date de sortie : 24.06.2020

OPL

 
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OPL FM Synthesizer

An OPL is a digital sound synthesis chip developed by Yamaha in the mid-1980s. It was used in sound cards for PCs, including the Ad Lib card and early Sound Blaster series.

This virtual synthesizer features an emulated OPL sound chip. It offers all features of the OPL2 and some features of the OPL3.

OPL GUI

What is an OPL?

Technically, the emulator has channels, each consisting of 2 oscillators. Each pair of oscillators is usually combined by phase modulation (basically frequency modulation). Each oscillator can generate one of eight waveforms (sine, half sine, absolute sine, quarter sine, alternating sine, camel sine, square, logarithmic sawtooth) and has an ADSR envelope that controls its amplitude. The unusual waveforms give it a characteristic sound.

How do I use the OPL?

Each instance of the plugin emulates an entire OPL chip, but with this plugin you basically only work with two operators: the carrier and the modulator.

SBI files

SBI files are an instrument file format developed by Creative Labs back in the day for the Sound Blaster. Basically they work as presets for the plugin. Just drag and drop them into the plugin window!

Percussion

Percussion mode is now supported! This mode is not very well documented, not even in the original Yamaha documentation. Here are some tips for its use, based on experiments and on the DOSBox source code:

  • Bass Drum: uses both operators. Essentially just doubles the output amplitude.

  • Snare: Abs sine waveform recommended.

  • Tom: uses modulator settings. Sine waveform recommended.

  • Cymbal: uses carrier settings. Half-sine waveform recommended.

  • Hi-Hat: uses modulator settings. Half sine wave recommended.

 Produits associés


 Specs techniques

Minimum requirements:

Windows: XP

Mac: OS 10.6.

32 / 64 Bit AU, VST, VST 3

RAM min.: 4GB

 

 

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