Creative Input The Xpanded Voice

31 Creaiing Very Long or ljnusuaI Envelopes 34 Selecting a Tracking Generator 39 Changing a Modulation Source 39 Removing a Modulation Source 39 Positive N egative M od u lation The Xpander voice can be divided into two parts The HARDWARE part is the section thai actually produces the sound the oscillators, filter, and output amplifiers (VCAs 1 & 2). Those elements are always part of every patch, in the same configuration. Obviously, the frequencies, waveshapes, filter modes and levels can...

First Edition June 1984

To Prevent fire or shock hazard do not expose this appliance to rain or mosture. Do rot 'emove cover No user serviceable parts inside Reter servicing lo quailed service personei Tfrss eouipment generates and uses radio frequency energy and 1 not installed and usee roper y i.e., m stnet accordance with the instruction manual, may cause harmful interference to radio communications. t nas been tested and found to comply with the limits *-of a Class A computing device pe'suart to Stbpa't J of Part...

Other Considerations

With all styles of synthesis, other aspects of the sound are important besides the timbre, These include the attack and decay of various parameters of the sound, as controlled by the envelopes and the addition of vibrato controlled with LFOs etc. Some timbres are easily generated with FM synthesis, especially ones that have non-harmonic tones such as bells, or have an initial attack that would be generated by plucking or striking, pizzicato strings for example. Other timbres such as bowed...

Programmed Xcellence

16 Selecting Single Or Multi Patch Mode 18 Comparing The Edited and Unedited Patch 16 Storing Patches 16 Selecting And Editing Patches While In Multi Patch Mode 19 Copying a Patch Frorn One Voice To Another 9 Editing Several Voices Simultaneously The Programmer Section of the Xpander mer display also provides information > r is used to select and store patches. The Program the status of the machine. SELECTING SINGLE OR MULTI PATCH MODE The Single Patch and Multi Patch buttons select Single or...

Modulation Pages

A Modulation Page exists behind every function that can be modulated. The Modulation Pages are shown in green on the block diagram To access a particular Modulation Page, press the button of the function you wish to modulate (notice the Modulation Page Select LED to the left of the buttons). For example, on the VCF VCA page, touch the FREQ button to modulate the filter frequency, touch RES to modulate the filter resonance, or touch VCA1 or VCA2 to modulate the volume of the VCAs. To return to...

To Love Your Cassette Interface

The Xpander Cassette Interface enables off-line tape storage of your patches, on any convenient tape format. Making data tape backups of your work is something that you should do frequently, with all your machines.You'll find that keeping copies of your programs will help speed up your work and eliminate duplication of effort , How did I get that sound before No matter, if you've got it on tape. You can load it back into your Xpander (or anyone else's for that matter) and get on with it Connect...

Modifying The Basic Patch

The Basic Patch (called OBERHEIM) that is stored In the Xpander's memory can recalled by holding STORE and touching CLEAR A block diagram of this patch is shown at the beginning of this section Looking at this diagram you can see the two Oscillators (VC01 & VC02). each with Sawtooth waveforms, being routed into the Filter and the two VCAs on the VCF VCA page. If you press the VCF VCA button you will see modulation dots to the right of Filter FREQ and VCA2 Pressing FREO or VCA2 will reveal...

Mas ter Page

The Master Page accesses functions that are not remembered as part of a patch but are used globally that is, in ail modes by the Xpander. There are two sets of pages displayed In the upper display are pages that affect the Xpari-der in both Single and Multi Patch modes. On the lower display are pages that will appear only while in Single Patch mode. These are the Master Multi Pages Even while playing a Single Patch, you need to be able to select MIDI channels, vibrato, volume, pan, etc all of...

Table of Contents

6 Taming The Beast How Do I Work This . Hookup Diagram Rear Pane Diagram Front Pane Picture Master Tune Master Transpose Autotune Calibration Running the Xpander From CVs Read This 18 Selecting Single Or Multi Patch Mode 18 Selecting Patches Comparing The Edited and Unedited Patch 18 Selecting And Editing Patches While In Multi Patch Mode Copying a Patch From One Voice To Another Editing Several Voces Simultaneously 20 Creative Input The Xpanded Voice Page t Controls Modulation Page 2 Controls...

Single Patch Pages

Square Waveform

There are nine main Single Patch Pages. These are selected with the nine buttons within the block diagram on the right side of the front panel When one of the Single Patch Pages is selected, the LED next to the button in the block diagram will light and the name of the page will appear on the current page section of the Programmer display. The functions associated with this page are displayed on the Page Modifier displays. The VCOs oscillators generate the sound of the Xpander. Press the VC01...

Knobs And Buttons

Generally, the names of the controls are on the top display in the Page Modifier Section, while the current setting of each control is on the bottom display. There are exceptions, where switches appear on both top and bottom displays. The buttons adjacent to the displays have multiple functions, which are indicated by the Switch Mode LEDs. Controls generally have a range of 0 to 63 Some can be positive or negative as well. Turn the knob to change the value, or press the button above the knob...