Dave Smith Instruments TETR4 Operation Manual

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Dave Smith Instruments TETR4 Operation Manual Manual pdf 15 page image

9Basic OperationTetra has multiple personalities. It is a four-voice, analog poly synth, a sort of“mini Prophet.” But the voice architecture is based on Mopho, so it has a coupleof sonic tricks up its sleeve—specifically sub-octave generators and feedback—that are absent from the Prophet. Tetra is also a four-part, multitimbral synthwith separate outputs, essentially four Mophos in one very compact box. Andit’s a voice expander for other Tetras or for a Prophet ’08. (Program banks 1 and2 are the Prophet ’08 factory programs.)In designing Tetra, the goal was to make a great sounding synth that was alsoaffordable. Toward that end, we wanted to give players enough control overparameters to make it useful for performance, so we came up with acombination of “hard-wired” commonly used controls and user-assignablecontrols. Any of Tetra’s parameters can be edited in real time from the frontpanel controls. But we also recognize that may not be the quickest or easiestway to program sounds from scratch. A free editor for Mac OS and Windowsgives you easy access to all of Tetra’s program parameters. Download it here:www.soundtower.com/tetra. Also, an advanced version of the editor with morefeatures can be purchased from our Web site.Note: The Prophet ’08’s controls map directly to Tetra’s, so if you have aProphet ’08, you can use it as a MIDI control surface for Tetra.ProgramsWhen Tetra first powers up, it is in Program Mode. The top line of the LCDshows the Program (1…128) and Bank (1…4) number of the currently selectedprogram, and the bottom line shows the 16-character name of the program.S ELECT changes the program. The program can also be changed by pressing theincrement (+) or decrement (-) switches. To increment to the next bank, hold theincrement switch briefly; to decrement to the previous bank, hold the decrementswitch.To edit a program, simply turn any knob. The ASSIGNABLE P ARAMETERS knobshave been preset to useful parameters for the factory programs. To change aknob’s assignment, press ASSIGN P ARAMETERS to light the LED. Turning any ofthe A SSIGNABLE P ARAMETERS knobs now will scroll through the list of availableparameters. Choose one or more parameters to edit and then press ASSIGNP ARAMETERS again to exit the assignment mode (ASSIGN P ARAMETERS LEDshould now be off). Alternately, turn A SSIGN P ARAMETERS on, use any of theA SSIGNABLE P ARAMETERS knobs to choose a parameter, and change the valuewith S ELECT or the increment (+) and decrement (-) buttons. See ProgramParameters on page 17 for a detailed list of all parameters and their functions.After editing parameters, press the Mode (PROGRAM /COMBO/G LOBAL) switch toexit Edit Mode and return to Program Mode.