Historic Synthesizer: Roland D-50 (5)

The Music Telegraph | Text 2020/03/31 [10:03]

Historic Synthesizer: Roland D-50 (5)

The Music Telegraph| 입력 : 2020/03/31 [10:03]

 

▲ Roland D-50 Service Manual

© Tradebit



Historic Synthesizer: Roland D-50 (5)

 

D-50 Functions

 

1. TVF (Time Variant Filter)

The TVF of the D-50 corresponds to the VCF (Voltage Controlled Filter) of an analog synthesizer and is a digital filter. TVF works only when using partial as a sound source and does not work when using PCM samples. Variables associated with TVF include Freq (Frequency), Resonance, and Key Follow, of which the Resonance function is one of the main functions of the D-50. Proper use of Resonance allows you to take advantage of the nuances of real musical instruments and achieve a unique phase sound, especially for electronic musical instrument sounds. 

 

 

2. TVA (Time Variant Amplifier)

The TVA of the D-50 corresponds to the VCA (Voltage Controlled Amplifier) of an analog synthesizer and controls volume of the D-50. Unlike TVF, TVA works regardless of whether it is a partial or PCM sample. TVA can be modulated by velocity, Key Follow, LFO, and aftertouch.

 

 

3. Pitch Envelope

The Pitch Envelope changes the pitch and is used to set the pitch-change over time. Pitch Envelope can be modulated by velocity and Key Follow.

 

 

4. EQ (Equalizer)

The D-50's output stage is equipped with a signal processor to activate the internal EQ. Among EQs, the parametric equalizer can divide the frequency into Hi and Low and adjust to +/- 12 dB.

 

 

5. Chorus

Chorus can be used to add a sense of stereoscopic and volume to the sound of the D-50. You can use this Chorus function to create chorus, flanger, and tremolo effects. Variables include Type, Rate, Depth, and Balance.

 

 

▲ Roland D-50 Editor and Librarian for MIDI Quest iPad

© Sound Quest



 

 

 

 

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