Roland Piano 用户手册

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Overview of the Fantom
Overview of the Fantom
How the Fantom Is Organized
Basic Structure
Broadly speaking, the Fantom consists of a 
keyboard controller 
section
, a 
sound generator section
, and a 
sequencer section
These sections are internally connected via MIDI.
fig.01-01.e
Keyboard Controller Section
This section consists of the keyboard, pitch bend/modulation lever, 
panel knobs and buttons, and D Beam controller. It also includes any 
pedals that may be connected to the rear panel. The performance 
information generated when you do things such as press/release a 
key, or depress the hold pedal is converted into MIDI messages and 
sent to the sound generator section, sequencer section, and/or an 
external MIDI device.
Sound Generator Section
The sound generator section produces the sound. It receives MIDI 
messages from the keyboard controller section and sequencer section 
and/or from an external MIDI device, generates musical sound 
according to the MIDI messages that were received, and outputs the 
sound as an analog signal from the output jacks or headphone jack.
Sequencer Section
This section records operations of the keyboard controller section as 
MIDI messages, and transmits the recorded MIDI messages to the 
sound generator section. MIDI messages recorded on the sequencer 
can also be transmitted from the MIDI OUT connector to allow the 
Fantom to also control external MIDI devices.
Classification of Fantom Sound 
Types
When using the Fantom, you will notice that a variety of different 
categories come into play when working with sounds. What follows 
is a simple explanation of each sound category.
Tones
On the Fantom, the tones are the smallest unit of sound. However, it 
is not possible to play a tone by itself. The patch is the unit of sound 
which can be played, and the tones are the basic building blocks 
which make up the patch.
fig.01-02.e
Tones consist of the following five components.
WG (Wave Generator)
Specifies the PCM waveform (wave) that is the basis of the sound, 
and determines how the pitch of the sound will change.
The Fantom has 1,083 different waveforms. All patches built into the 
Fantom consist of combinations of tones which are created based on 
these waveforms.
There are four wave generators for each rhythm tone (percussion 
instrument sounds).
TVF (Time Variant Filter)
Specifies how the frequency components of the sound will change.
TVA (Time Variant Amplifier)
Specifies the volume changes and the sound’s position in a stereo 
soundfield.
Envelope
You use Envelope to initiate changes to occur to a sound over time. 
There are separate envelopes for Pitch, TVF (filter), and TVA (volume). 
For example if you wish to modify the way in which the sound attacks 
or decays over time, you would adjust the TVA envelope.
LFO (Low Frequency Oscillator)
Use the LFO to create cyclic changes (modulation) in a sound. The 
Fantom has two LFOs. Either one or both can be applied to effect the 
WG (pitch), TVF (filter) and/or TVA (volume). When an LFO is 
applied to the WG pitch, a vibrato effect is produced. When an LFO is 
applied to the TVF cutoff frequency, a wah effect is produced. When 
an LFO is applied to the TVA volume, a tremolo effect is produced.
LFO is not included in the rhythm tones (percussion instrument 
sounds).
Keyboard Controller Section (controllers 
such as keyboard, pitch bend lever, etc.)
Sound 
Generator 
Section
Recording
Playback 
Sequencer
Section
Play
WG
Pitch
Envelope
TVF
TVF 
Envelope
TVA 
Envelope
TVA
LFO 1
LFO 2
control signal
Tone
audio signal