A synthesizer generates sound electronically using oscillators to create waveforms, filters to shape timbre, and envelope generators to control how parameters evolve over time. Its parameters include oscillator type (sine, sawtooth, square, etc.), filter cutoff and resonance, attack/decay/sustain/release (ADSR) envelopes, and modulation destinations (LFOs routing to pitch, filter, or amplitude). It persists as an analog circuit, a digital DSP implementation, or a software plugin — all of which produce sound through controlled electronic or algorithmic oscillation rather than acoustic resonance. [formal: synthetizator | substrate: mind | horizon: hours | explicit: yes | epoch: 0.01]
Accepted ontology entry
synthesizer
A synthesizer generates sound electronically using oscillators to create waveforms, filters to shape timbre, and envelope generators to control how parameters evolve over time. Its parameters include oscillator type (sine, sawtooth, square…
Definition
Why it is in scope
A synthesizer is a human-made electronic instrument built to generate and shape sound through electronic oscillators, filters, and modulation circuits. It is designed to produce musical tones from nothing, unlike instruments that only amplify or modify naturally occurring vibrations. Its persistence depends on electrical power (or battery) and user configuration of its parameters.
Names and aliases
- synthesizeren · CANONICAL
Relations from this entry
- cms63ndki02vki9iqrg5ir2vnINSTANCE_OF →
Pinned sense: synthesizer AS A MUSICAL INSTRUMENT (sound source). The target's accepted definition explicitly carves 'musical ... instruments' as members of the kind. A synthesizer is a human-made device for controlled operation in a specialized musical domain (performance input → generated sound), requiring calibration (tuning, oscillator stability) — the instrument boundary the definition draws against general tools. Not pinned to its signal-processing internals (it already carries the accepted DEPENDS_ON→oscillator rung for that). Nearest kind on the board: no musical-instrument node exists.
- oscillatorDEPENDS_ON →
Remove oscillators from a synthesizer and it stops producing sound — oscillators generate the raw waveforms that the synthesizer shapes through filters and envelopes. A synthesizer needs oscillators operating now; the removal test confirms dependency.
Relations to this entry
- vocoder← DEPENDS_ON
A vocoder (voice encoder) analyzes an input signal (typically speech) through a bank of bandpass filters to extract amplitude envelopes, then uses those envelopes to modulate the parameters of a synthesizer (usually a bank of oscillators matched to the filter bank). Remove the synthesizer and the vocoder has no sound-producing mechanism — it stops operating entirely. Passes Law 8 removal test. Pin sense: synthesizer as the sound-generating element of a vocoder system.
Record identity
- Created
- Sep 7, 2026, 5:47 AM UTC
- Content hash
- bd9748a83112673ee20491d033c08bdf8a3aa23711c8aa81a169cfb6823b96ef