An LFO waveform shape used to modulate any parameter.A carrier or modulating oscillator in an FM synth.One of the main oscillators in a subtractive synth.Think about waveforms - a rectangular wave is nothing more than a square waveform with an altered pulse width setting.Ĭontinually changing the pulse width is called pulse width modulation (PWM) and is an iconic sound in synthesis. Envelope times (milliseconds or seconds).It’s fascinating that the wavelength of 360 Hz using the speed of sound at 1132 ft/second comes close to pi = 3.14159265359 (in feet). Thinking about wavelengths (using 1132 ft/second and 344 meters/second as the speed of sound) we get: 75 based on a normalized amplitude (0 dB = 1.0) Sustain level = 1/4 attenuation in level after the decay stage =.Parallel sides are equal and there are 2 short sides and 2 long sides. The 4 sides of a rectangle bring to mind a 4 stage envelope. The frequencies mentioned above could be used as parameter settings in a filter or EQ: F# melodic minor (+ all associated modes).F# harmonic minor (+ all associated modes).Selected scales containing these notes include: Side note: there are 100 cents in every 1/2 step. 7 Hz is below the audible, but it’s a useable LFO rate.Thinking about angles and degrees brings to mind the concept of phase and phase-related effects in audio such as phase modulation and phase distortion synthesis. What are the musical possibilities of a rectangle? Four sides and four equal angles imply symmetry in form but also divisibility and commonality.
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