The value of controller 0 determines which bank Manuwl, Preset 1—4, Card 1—8 is to be recalled. When editing a Program, you will use Program Edit Mode. Mix Group Channel Manula This allows you to simulate different surfaces of a room or hall, with softer surfaces absorbing more high frequencies and smaller rooms having faster low frequency decay. Page Chapter 8: Reverb This makes it possible to have the signal from the Pitch or Delay sections, or the direct effect send in any combination or amount.

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Please retain this container in the highly unlikely event that you need to return the QuadraSynth for servicing. Upon receiving the Alesis cannot be responsible for problems caused by using the QuadraSynth or any associa These should be low-capacitance shielded cables with a stranded not solid internal conductor and a low-resistance shield.

Although quality cables cost more, they do make In such a situation, adjust the contrast of the LCD display using the following procedure. Program Mode and Mi The currently selected channel appears at the top left of the display. This makes it easy to create multitimbral setups for use with an external MIDI sequencer. However, there is much more about a Mix that may be edited. Refer to Chapter 5 for more about Mix editing. While the Program remembers which Effect Patch to use, and how much sound to send to it and to which o Each of these sounds has its own effects , as well as effects bus assignment.

Many of the Programs in the QuadraSynth use only one or two sound layers, while others Alesis S4 - page The MIDI connections provide three different functions.

To create layers or stacks, your controller must send multiple MIDI messages to the S4 simultaneously. This offers you the added control of changing the sound from the This is a way of v Either pair of Being able to layer up to four sounds allows for creating large ensembles e. When creating layered Programs, keep polyphony in mind.

Mix Edit Mode Mix Edit mode lets you change the parameters of Some functions have too many options to fit on a single screen. These functions use multiple screens, with each screen considered a page. This strip shows which page is selected by underlining the page number. The currently selected Program will appear in the upper right of the display. Pressing this button toggles between Program Edit mode and Effects Edi Notice that the assig Anytime you want to keep an edited ver Doing s This selects Program mode, but retains your changes to the Program in Mix Edit.

While in Program Mode you can play only one Program at a time, in Mix Mode you can play up to 16 Programs at once, either from the keyboard as layers or splits or from an external sequencer via 16 M Each channel may be enabled or disabled, without changing any of its parameter settings.

When a channel is disabled, its number will not appear in the upper left display, except when it is selected for editing. You can set levels, effect levels and bus assignments, pitch transposition, keyboard ranges Setting the Rang This has no effect on the S4 module; it only applies to the Quadr This is ext This allows you to isolate individual channels in a Mix. Like music itself, learning synth programming is an ongoing process. Although this manual presents information about synthesizer p These resemble the types of chips used in computers and other digital devices.

In fact, you can think of the QuadraSynth as a special-purpose In Mix Mode, it is possible though not advisable t Alesis S4 - page 55 Editing Programs 54 QuadraSynth Reference Manual Note that the waveforms in the QuadraSynth are different from those found in samplers or many sample-playback units.

Because the QuadraSynth has its own filter module and amplitude module for each voice, the pure waveforms are relatively bright--as bright as the original instrument can be--and have a The vibrato of a flute, the expr An envelope generator has different effects on different modules.

Example: The Amp Envelope creates level changes. Amplitude that decays over time creates percussive effects plucked strings, drums, etc. Amplitude that increases over time gives th The Drum Mode parameter is found in the Misc. Function see last section of this chapter. This section lets you feed the sound to one of the effect buses for processing. For more on effect buses, see Chapter 6. Detune Type Normal or Equal With Normal selected, the percentage of detuning remains the same over the entire range of the keyboard, so the effects of detuning sound the Portamento provides a sweeping glide from one note to another over a variable amount of time.

Lower values give a duller sound since this removes more harmonics; higher values let through more harmonics, which gives a brighter sound. Tip: Signals with complex harmonic structures are most affected by the Example: With positive settings, bending pitch up raises the filter cutoff frequency and bending pitch down lowers the filter cutoff frequency. With negative settings, bending pitch up lowers the filter cutoff frequency a Alesis S4 - page 66 Editing Programs QuadraSynth Reference Manual 65 13 choices This selects how the sound will respond to the dynamics of your playing the keyboard.

A LINEAR curve is the norm, whereby the increase in level is equal to the increase in velocity; the velocity values increase as you play harder. Many of the Velocity Curves make up sets to be used by 2, Higher positive values increase the amount of LFO modulation. Negative values give the same apparent effect, but with reversed LFO phase i.

Example: If you hold the sustain pedal down and play the same note over and over, Sound Overlap determines how many voices are available for that note, and thus how many voices will overlap play simultaneously.

In the old day Aftertouch is also called channel pressure, and represents an average of all keys being pressed. This affects any keys that are held down. The harder you press on the keys, the greater the degree of modulation. Because of this, modulating the LFO Speed using a voice-specific source such as velocity or one of the A positive value raises the level when the Mod Wheel is moved up, and lowers the level when moved down.

Negative settings of this parameter will decrease the output level of the FLFO as The Mod Wheel and Aftertouch will add or subtract from this base level. Example: If Level is set to 10 a The level it reaches is set by the Sustain control; how long it takes to get there is set by the Decay control. In the special case wher When turned on, playing toward the higher end of the keyboard will result in a faster envelope cycle; playing toward the lower end of the keyboard will resul Alesis S4 - page 79 Editing Programs 78 QuadraSynth Reference Manual Attack 00 to 99 This is the amount of time the envelope will take until it reaches its maximum output level.

Setting the Attack to 0 will give a sharp edge to the sound if the Delay is also set to 0 in FENV Page see below ; a setting of 99 will result in a much slower attack, taking many second When set to Normal, the envelope will always start at its current level i. Alesis S4 - page 81 Editing Programs 80 QuadraSynth Reference Manual Amp Envelope Page 1 The Amp Envelope is crucial for all sounds because it sets the basic characteristics of the note--whether it attacks quickly or slowly, sustains or decays.

Some Programs may leave the Amp Envelope in a sustaining mode, and provide attack and decay using the Filter Envelope; the Alesis S4 - page 82 Editing Programs QuadraSynth Reference Manual 81 Sustain Decay 00 to 99 This is the amount of time that the envelope will take during the sustain stage to bring the level down to 0. If this is set to 99, the envelope will remain at the Sustain level until the note is released.

For example, normally you could modulate the Amp volume of a sound using velocity; the harder you play, the louder the sound gets.

The amount of change in volume is equal to the change in velocity; this is called linear Function see previous section. Alesis S4 - page 86 Editing Programs QuadraSynth Reference Manual 85 Effects Level The function determines how much of the selected drum is being routed to the effects processor, and on which bus.

You can also set the note assignment by holding Quad Switch [1] and tapping the key on the key Alesis S4 - page 88 Editing Programs QuadraSynth Reference Manual 87 Copying Sounds While editing a Program, it is helpful to be able to copy a sound to another sound in either the same Program or a different Program, especially if you are building a split or layered Program.

This can be done very easily from within the Store function. To copy a sound to another sound The QuadraSynth effects processor has four inputs, or effect sends. You might think If this should occur, try reducing the Input Levels for each of the effects devices in the current configuration, and if necessary reduce the Eff This indicates that the current Effects Patch in the edit buffer is different from what is stored in memory.


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