Generalmusic RP-X User Manual download pdf (Page 22)

Page 18

owners manual

rp-x

TECHNICAL SPECIFICATIONS

Type

Piano sound expander (acoustic, vintage)

Polyphony

72 Notes max.

Sounds

50 stereo/mono pcm, physical modelling sounds

Display

3 digit LED Display

Performance Mode

99 Performances

Multi Mode

4 - Parts

Output

1 x Stereo out (Left + Right Jack)

Input

1 x Stereo in (Left + Right RCA)

Midi

In/ Out / Thru

Pedals

1 x Continuos control (optional Expression)

1 x Single switch or multipedal (optional)

Headphones

2 x headphones

Mastervolume

Master Volume knob

Edit-Mode

Part (ch), Sound, Volume, Velocity, Transpose, Reverb, EFX, Tune

Effects

6 Reverb (Room: small, medium, large; Hall: Large, Medium; Stage)

4 Send Effects: Chorus, Phaser, Tremolo, Stereo Delay

2 Insert Effect: Wah-Wah, Compressor

4 band full parametric programmable Equalizer

DSP technology

D.R.A.K.E. by Generalmusic

memory size

Flash Ram 64 MB

Extra info

Midi Velocity Fix IN / PC editor, "easy to use" interface

USB

PC- Software

rp-x PC editor

Weight

2,5 Kg./5,5 lbs

Dimensions

218 x 44 x 198 mm/ 8,5 x 1,7 x 7,8 inch

Physical Modeling is a method of sound synthesis based upon a mathematical model which de scribes the physical construction of the instrument being simulated.

Unlike sampling technology, in which an existing sound is simply recorded at a particular moment in time, (to remain essentially the same for ev er), the sounds

produced by a Physical Model continuously react and respond to the player’s input, maintaining all the little nuances and im per fec tions which provide the most

reliable subconscious as sur ance that the in stru ment being played is the real thing. A sampled sound can be likened to a “snapshot” of a particular mo ment in

time during which an instrument is being played. It’s like taking a photograph. The goal of Phys i cal Mod el ing is this: Instead of simply recording the ﬁ nal audible

product of a in stru ment like an electric piano, we replicate all the elements which are incorporated into its con struc tion. If the physical model is constructed care-

fully and accurately with meticulous attention to detail, the re sult ing sound should be ex act ly like the real thing and, more importantly, the experience of playing

and interacting with the in stru ment should be similarly convincing. In the rp-x, all the acoustic piano sounds are created by combining sample playback with

Generalmusic’s Natural String Resonance, Damper Phys i cal Model, Ad vanced Re lease and FADE tech nol o gies, (described below). Other instruments such as

RHODES, WURLI and CLAVINET are created using pure Physical Modeling.

TECHNOLOGY

The rp-x is powered by Generalmusic’s break-through technology DRAKE. DRAKE (Dsp-Risc-Advanced-Keyboard-Engine) is the ultimate DSP: probably

the most advanced piece of musical hardware in the world. Its 32-bit and 50-MIPS internal structure and its totally programmable software architecture

make this processor so fast and powerful that any kind of algorithm, from Wavetable to Physical Modeling, can be implemented in real time, either

in generation or in post-processing. Using the Physical Modelling power offered by DRAKE, Generalmusic has created and patented a number of

new algorithms which replicate some of the world’s most famous vintage instruments like Rhodes™, Wurlitzer™ and Clavinet™. DRAKE has found

unanimous, enthusiastic appraisal from experts in these ﬁ elds.

Reproduction of the complex harmonic and dynamic changes which take place as you increase or de crease the velocity of a key-strike on a piano have always

presented a serious problem for traditional sam ple-playback tech nol o gy. The only practical way to re pli ca te these changes has been to select three or four

distinctly dif fer ent levels and switch between these according to the velocity with which the key is struck. This produces the unnatural effect of having clearly

audible steps between different velocity levels, further diminishing the authenticity of the sound reproduction. Unlike the velocity-switching meth ods used in

other elec tron ic pianos, Generalmusic’s unique FADE technology utilizes only one specially conﬁ gured sound source per note. At the heart of the FADE engine

is a extensive database which can be used to look up the precise harmonic content of any note played at any velocity level. Whenever a note is played, the

FADE engine analyzes the velocity of the key-strike and constructs, in real-time, a model of the nec es sary har mon ic con tent for that particular note played at

that velocity. The note’s sound source is pro cessed by the FADE engine with appropriate harmonic content being added or subtracted ac cord ing ly. In practice,

FADE tech nol o gy provides seamless transition from pianissimo all the way through to for tis si mo for each note without any audible switching.

The particular sound of a piano string being stopped by a damper while in motion is replicated by Generalmusic’s unique Ad vanced Release Technology. Sample

based electronic pi anos traditionally use a en ve lope generator to control What happens when a key is released. This simply allows the sample loop to continue

playing for a set period of time until its amplitude is ﬁ nally reduced to zero by the envelope generator. In an acoustic piano, vibrating strings are silenced when

a felt damper comes into contact with the moving string. When this happens, depending on how hard the key was struck and the length of the string itself,

certain frequencies are damped earlier than others while some other frequencies are even accentuated, (anyone who ever studied how to produce harmonics

on a guitar will recognize this principle). This produces a distinctive harmonic “ring” as the different fre quen cies in the string’s tone dis si pa te through out the

piano soundboard. This Advanced Release Tech nol o gy in the rp-x series simulates these phe nom e na with complete accuracy throughout the 88 note range.

Another technology patented by Generalmusic is Damper Physical Model. Whenever the damper pedal is depressed, the damper physical model simulates the

effect of sym pa thet ic resonance being produced by the strings which the action of the pedal has now left free to res o nate. Use the damper pedal to hear the effect

of the Damper Phys i cal Model by comparing the sounds of notes played in the highest octave of the in stru ment with and with out the damper pedal de pressed.

This physical modeling technology, patented by Generalmusic as Natural String Resonance, allows all of the complex harmonics normally produced by a

piano’s soundboard to be faithfully re pro duced. This means that a note’s individual sound will always be slightly different depending upon which other notes

are currently being held, (and consequently which strings are un-damped and free to resonate in sym pa thy with the note played). If you hold down a low C and

let the note decay, the strings for that note are still un-damped for as long as the key remains depressed. If you now strike another C higher up the keyboard,

(stac ca to), you will hear the sympathetic resonance of the low C strings in response to the new note played. This natural effect replicates exactly what hap pens

inside a grand piano. If you experiment with different combinations of notes you will hear harmonic colors particular to each. Because this effect is produced

by physical modeling and not by samples or DSP effects, the result is a musically and technically ac cu

ra te simulation of a piano’s soundboard and virtually

inﬁ nite combinations of har mon ics can be produced.

Physical Modeling

Natural String Resonance

Advanced Release Technology

Damper Physical Model

FADE - Filter Algorithm Dynamic Emulation

Technical speciﬁ cations are subject to change

1 2 ... 17 18 19 20 21 22 23 24

Comments to this Manuals

No comments

Generalmusic RP-X User Manual Page 22

Comments to this Manuals

Related products and manuals for The input devices Generalmusic RP-X