Self oscillation

Self oscillation

Self oscillation is a term usually used when describing a voltage controlled filter of an analog synthesizer. Self oscillation occurs when the resonance or Q factor of the filter is set so high as to cause the filter circuitry to generate a tone on its own after it has been excited by an impulse.

Self oscillation produces an audio sine wave which can range from high-pitched to subaudible frequency. This waveform's pitch can be altered by an envelope generator, or the cutoff frequency knob. If the synthesizer containing the filter has keyboard tracking available, the keyboard can control the pitch, as if the filter were a normal VCO.

See also

* Oscillation
* Resonance
* Electrical resonance
* Self-resonant frequency
* Feedback


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  • self oscillation — savasis svyravimas statusas T sritis fizika atitikmenys: angl. eigen oscillation; natural oscillation; self oscillation vok. Eigenschwingung, f rus. собственное колебание, n pranc. auto oscillation, f; oscillation propre, f …   Fizikos terminų žodynas

  • self-oscillation — žadinimasis statusas T sritis radioelektronika atitikmenys: angl. self excitation; self oscillation vok. Selbsterregung, f rus. самовозбуждение, n pranc. auto excitation, f; auto oscillation, f …   Radioelektronikos terminų žodynas

  • self-oscillation — autosvyravimas statusas T sritis automatika atitikmenys: angl. self oscillation vok. Selbstaufschaukeln, n rus. самораскачивание, n pranc. auto oscillation, f …   Automatikos terminų žodynas

  • self-oscillation — …   Useful english dictionary

  • Oscillation — For other uses, see oscillator (disambiguation) and oscillation (mathematics). An undamped spring–mass system is an oscillatory system. Oscillation is the repetitive variation, typically in time, of some measure about a central value (often a… …   Wikipedia

  • oscillation propre — savasis svyravimas statusas T sritis fizika atitikmenys: angl. eigen oscillation; natural oscillation; self oscillation vok. Eigenschwingung, f rus. собственное колебание, n pranc. auto oscillation, f; oscillation propre, f …   Fizikos terminų žodynas

  • self-excitation — žadinimasis statusas T sritis radioelektronika atitikmenys: angl. self excitation; self oscillation vok. Selbsterregung, f rus. самовозбуждение, n pranc. auto excitation, f; auto oscillation, f …   Radioelektronikos terminų žodynas

  • self-sustained oscillation — neslopinamasis svyravimas statusas T sritis fizika atitikmenys: angl. continuous oscillation; self sustained oscillation; undamped oscillation vok. kontinuierliche Schwankung, f; ungedämpfte Schwingung, f rus. незатухающее колебание, n pranc.… …   Fizikos terminų žodynas

  • self-excited oscillation — savaiminis svyravimas statusas T sritis fizika atitikmenys: angl. self excited oscillation; self sustained oscillation vok. selbsterregte Schwingung, f; Selbstschwingung, f rus. самовозбуждающееся колебание, n pranc. oscillation auto exitée, f …   Fizikos terminų žodynas

  • self-sustained oscillation — savaiminis svyravimas statusas T sritis fizika atitikmenys: angl. self excited oscillation; self sustained oscillation vok. selbsterregte Schwingung, f; Selbstschwingung, f rus. самовозбуждающееся колебание, n pranc. oscillation auto exitée, f …   Fizikos terminų žodynas

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