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Comparison Medeli M211K vs Casio CTK-240

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Medeli M211K
Casio CTK-240
Medeli M211KCasio CTK-240
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Typesynthesizer (rompler)synthesizer (rompler)
Keys
Number of keys6149
Sizefull sizefull size
Mechanicsactivepassive
Rigiditysemi-weightedunweighted
Specs
Polyphony32 voices12 voices
Built-in timbres580 шт100 шт
Auto accompaniment
Accompaniment styles200 шт100 шт
Learning mode
Tempo change30 – 28020 – 255
Metronome
Sequencer (recording)
Mixer
Built-in compositions
 /155/
Effects and control
Timbres layering
Keyboard split
Reverberation
 /10/
Chorus
 /8/
Transposition
Fine tuning
Connectors
Inputs
mini-Jack (3.5 mm)
 
Microphone1 шт
Connectable pedals1 шт
Outputs
USB to host (type B)
headphones
 
headphones /combined with linear/
Linear outputs1
In box
In box
 
PSU
music stand
PSU /may not be supplied/
General
Built-in acoustics6 W3.2 W
Number of bands11
Displaymonochromemonochrome
Power consumption5 W
Autonomous power supply
aA batteries /6 pcs/
Operating hours6 h
Dimensions (WxHxD)946x101x316 mm914x75x237 mm
Weight4 kg2.8 kg
Color
Added to E-Catalogdecember 2018october 2016

Number of keys

The greater the number of keys — the wider the range of the instrument, the lower and higher notes you can take on it right during the game, without resorting to tricks like octave shift (see below). By comparison, a full size piano keyboard has 88 keys. However, in synthesizers, such an amount is rare, because. the instrument would have turned out to be too bulky and expensive, and not every musician, even a professional one, needs such an extensive range. Thus, 88-key keyboards are used primarily in high-end workstations (see "Type"). For ordinary synthesizers, the standard is 49, 61 or 76 keys ( there are also options for 73 keys) — this is usually quite enough (while the "golden mean" option is considered to be 61 keys). And small children's models can have 32 keys.

Mechanics

Type of action used in synthesizer keys.

— Passive. The simplest type of mechanics, when each key is, in fact, a “switch” for its note: it only turns the sound on and off, while the volume of this sound does not depend on the strength and intensity of pressing. Passive keyboards usually have unweighted, less often semi-weighted hardness (see below). Their main and, perhaps, the only advantage is their low cost, due to the simplicity of design. At the same time, the capabilities of such tools are very limited, and even when training, it is recommended to use them only at the very initial stages. As a result, passive mechanics are used exclusively in the simplest low-cost-level synthesizers, which are more suitable for the role of a toy for entertainment, rather than a full-fledged instrument.

— Active. A mechanic that provides a relationship between volume and pressing force: the harder the key is pressed, the louder and sharper the sound will be. Most often combined with semi-weighted, occasionally unweighted hardness (see below). Such keys already make it possible to control the dynamics of each note: select its volume "on the fly", highlight accents, use special techniques, etc. This feature is especially important in training, when you need to train to control the effort on each individual finger. Active mechanics are highly recommended even for an inexpensive synthesizer, and for a mid-range instrument it is almost man...datory, as well as for serious learning. At the same time, many models may provide sensitivity adjustment, or even a complete switch to passive mode (for example, to simulate some instruments).

— Hammerhead. The most advanced kind of mechanics. Like the active one, it provides volume control depending on the force of pressing, but it fundamentally differs in response: hammer action is used only in weighted keyboards (see "Rigidity"), and the feeling when playing it is close to playing on a real piano. The degree of approximation, however, can be different — some models are indistinguishable in sensations from the piano, in others the mechanics are simpler. However, anyway, such features are not cheap, despite the fact that the real need for a "piano" response is extremely rare. As a result, hammer action keyboards are found mainly among top-class instruments, mainly workstations (see "Type") with full-size keyboards for 88 keys.

Rigidity

Unweighted. Keys with a very low pressing force, literally "failing" under the fingers. This option is well suited for inexpensive synthesizers with passive mechanics (see above), but is rarely used in active models — a small resistance force makes it difficult to choose the optimal pressing force.

— Semi- weighted. Medium-strength keys, not up to the hardness of a full-fledged piano, but showing noticeably more resistance than unweighted ones. This variant is most popular among instruments with active mechanics (see above) — the force on the keys provides adequate feedback and at the same time playing such an instrument does not cause any special difficulties even for those who previously dealt only with unweighted keyboards.

Weighted. Keys with high actuation force, comparable to that of a classical piano. Used only in professional hammer action instruments (see above) — high rigidity is a must for such mechanics (more precisely, for the response that it must provide).

Polyphony

The polyphony supported by a synthesizer, in other words, is the number of “voices” (tone generators) that can simultaneously sound on it.

This parameter is often described as the number of notes that can be played simultaneously on the keyboard. However, this is not entirely true due to the fact that in many timbres one note can activate several tone generators. As a result, for example, to play a chord of 3 notes in a timbre with 4 tone generators per note, polyphony of at least 3 * 4=12 voices is required. In addition, Auto Accompaniment and Preset Songs (see related sections) also use tone generators, requiring even more voices to work effectively with these features.

The minimum value for a more or less functional modern synthesizer is polyphony for 32 voices — and even then such an instrument can be used mainly for initial training and simple melodies. For a more solid application, it is desirable to have at least 50 – 60 voices, and in professional models (in particular, workstations where you have to deal with several audio tracks at once), there are models with polyphony for 150 tone generators or more.

In general, a more advanced synthesizer is likely to have more extensive polyphony, however, it is only possible to evaluate the class of an instrument by this parameter very approximately — instruments with the same number of voices can differ greatly in level. The only exception to this rule are children's synthesizers (see "T...ype"), which support up to 20 voices.

Built-in timbres

The number of built-in sounds provided in the synthesizer.

The number of timbres is often described as the number of instruments that a given model can imitate. However, this is not entirely true — rather, this parameter can be called "the number of instruments and sound effects." For example, the same instrument — an electric guitar — with different "gadgets" (distortion, overdrive) will sound differently, and in the synthesizer each such gadget will be considered a separate timbre. The “drums” timbre usually combines different types of drums and other percussion instruments — in other words, it allows you to portray both the “bass drum” and the cymbals without switching settings, just by pressing the desired keys. And some timbres may not have analogues among real instruments at all.

The more built-in timbres, the more extensive the possibilities of the synthesizer, the more diverse the sounds that can be extracted from it. At the same time, in high-end models like workstations (see "Type"), this number can reach 1000 or even more.

Accompaniment styles

The number of auto accompaniment styles (see above) originally provided in the synthesizer, in other words, the number of accompaniment options available to the user.

The more extensive this set, the higher the probability of finding among these melodies suitable options for a particular case. At the same time, the abundance of styles in itself is not yet a 100% guarantee that among them there will be a suitable one, especially since different synthesizer models can differ markedly in a specific set of melodies. So the list does not hurt to clarify before buying. Also note that the situation can be corrected by user styles (see below) — many synthesizers with auto accompaniment support them.

Tempo change

The range in which you can change the tempo of the programme played by the synthesizer — auto accompaniment, lesson tune (see above), metronome (see below), recorded sample, etc.

Pace is measured in beats per minute. Changing it allows you to adjust the speed of the synthesizer to the specifics of the situation — for example, slightly slow down the tutorial if it is too hard to master at the initial pace. The wider the range of tempo adjustment, the more options the musician has to choose from, especially in the area of very slow and very fast tempos.

Note that the traditional range of musical tempos covers values from 40 beats / min (“grave”, “very slowly”) to 208 beats / min (“prestissimo”, “very fast”), however, in synthesizers it can be more extensive — for example, 30 – 255 bpm.

Sequencer (recording)

The sequencer is a device that allows you to record music played on the instrument in real time. Recording is usually done in MIDI format. At the same time, the capabilities of the sequencer can include not only the recording and playback of the music being played, but also advanced options for editing it: sequential overlay of several parts, mixing of recorded tracks, changing the volume, tempo, timbre, key of the recorded compositions, quantization to eliminate tempo irregularities, etc. .P. The specific capabilities of the sequencer, usually, directly depend on the type (see above) and the price category of the synthesizer. However, anyway, this function can be an important help for both a novice musician and a professional.

Mixer

The presence of a mixer in the design of the synthesizer.

A mixer in this case is a device designed to control individual audio channels that make up the sound of a synthesizer as a whole. The list of these channels includes, in particular, the main voice, the layered voice (see “Dubbing voices”), several auto accompaniment channels (main, bass, drums, etc.). With a mixer, the musician can manually control these channels — turn some of them on and off, switch the timbre, tempo, key, etc. This greatly expands the possibilities for using the synthesizer.
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