This insures the oscillators produce harmonic overtones, which makes it easier to program the synthesizer. Oscillators B and C run at frequency ratios B:A and C:A relative to A, which are set by the RATIO B:A and RATIO C:A knobs.Īlthough the knobs seem to operate in a continuous manner the frequency ratios are actually quantized to the following values. Double tap any control knob to return to the default setting for that control.įREQ A shifts the pitch of oscillator A in octave increments up (knob right) or down (knob left). The refeence frequency is A=440 Hz with the TUNE knob straight up. Oscillator A sets the fundamental frequency. XMod uses FM (frequency modulation) synthesis to generate complex sounds from three cross-connected oscillators. (Make sure the app is not running so your changes are not over written.) You can also edit this file manually if you like. Each time your settings are saved this file is automatically updated. When you restart a new copy will be created. To return to the "factory settings" remove this file from the app's documents directory using iTunes File sharing. Which can be changed using the V1/V2 button, and blended with the rotary control knob.Īt start up for the first time, a file called "patches.xml" is created that contains all of the preset patches. Sounds in the preset sound bank (the first 32 sounds) cannot be changed. The "" buttons cycle through 32 preset and 32 custom (user programmable) sounds.Ĭ/P copies settings of one patch location that you can paste into another. In fact almost any setting works in xMod.
The complexity of programming FM synthesizers is solved in xMod. The sound engine is a triple-oscillator cross-modulated FM synthesizer.įM is widely regarded as the most efficient way of generating complex "organic" musical sounds. XMod is an full-function polyphonic synthesizer designed for iOS devices. Otherwise contact us to report problems and request assistance.
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