or from analysis, and in Real Time: Draw waveforms directly onto its LED matrix display with finger-tip (a feature once offered by the Fairlight CMI almost 10 years previously, albeit using a video monitor and light-pen). Draw dual Spectrum type shapes for Amplitudes, Frequencies (with separate: Integer / Decimal parts, and Envelope Variation), Phases - Corresponding to each parameter the base spectrum and the MIDI control spectrum. Draw dual Envelopes to each Oscillator Parameter: Amplitude, Frequency - Corresponding to base envelopes and MIDI control envelopes, independent on each oscillator. Draw dual Envelopes to each voice parameter: Volume, FM, Color, LFO1, LFO2 - Corresponding to base envelopes and MIDI control envelopes. Draw waveforms for LFOs. You can also apply a digital type of filtering named COLOR filter. With center frequency envelope. The frequency is expressed as harmonic number, then you apply the filtering on the same manner at 100 Hz or 2000 Hz or 5000 Hz. With possible selection of harmonic numbers to be filtered or not (example to keep fundamental). With drawn envelope and filter shape (Low pass, High pass, Band, User-drawn response curve - for example Comb type shape) FM (Frequency Modulation) envelopes is also accessible and applied on the created sound structure (or analyzed). Other controls and editing: Timbre interpolation, Time stretch / expansion, extended MIDI controls (programmable control curves), muting elements, chorus. Description The word Acxel is short for "acoustical element" (as pixel is short for "picture element".) The Acxel consists of 2 components: The "Grapher" (graphic console) and the "Solitary" (Rackmount containing the Synthesis and Analysis hardware). Standard - 256 Oscillators (8 voices), up to 1024 Oscillators (32 voices). Instead of having an LCD or CRT screen, the Axcel has a bank of 2114 LEDs mounted behind finger-sized conductive sensors (a smaller number were also used on the Technos 16 synthesizer main panel). All data readouts, and a lot of data input, are processed using this innovative method. The 16 is the Acxel ancestor (1984 - never in production, 4 units delivered at that time), introducing the concept but limited to 64 Oscillators, including a keyboard. The Acxel never found mainstream favour and was never a commercial success, due to its high cost, and relative difficulty of use. Only about 35-40 units were sold from 1987 to 1990. As a result of this, Acxels today are very rare. Consequently, resale prices can be quite expensive. Although