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JSyn Unit Generators by Type (Pure Java API)

Arithmetic and Logic

• Add - output = inputA + inputB, clipped between -1.0 and <1.0.
• Compare - output = ( inputA > inputB ) ? 1.0 : 0.0;
• Divide - output = inputA / inputB
• Latch - output = (Gate > 0.0) ? Input : previous-output; used for sample and hold.
• LatchZeroCrossing - Latches when input crosses zero and clamps to zero.
• Maximum - output = ( inputA > inputB ) ? inputA : inputB. Useful for clipping.
• Minimum - output = ( inputA < inputB ) ? inputA : inputB. Useful for clipping.
• Multiply - output = inputA * inputB
• MultiplyAdd - output = inputA * inputB + inputC
• PowerOfTwo - Convert a linear signal to an exponential signal. Useful for converting pitch to frequency.
• SchmidtTrigger - Comparator with hysteresis (separate Set and Reset levels).
• Select - output = ( select > 0.0 ) ? inputA : inputB;
• Subtract - output = inputA- inputB, clipped between -1.0 and <1.0.

Control

• AsymptoticRamp - output approaches Input asymptotically.
• CrossFade - Cross fade smoothly between two inputs.
• ContinuousRamp - output approaches Input smoothly with no jumps in position or speed.
• EnvelopeAttackDecay - very simple envelope.
• EnvelopeDAHDSR - similar to ADSR but with a delay and a hold.
• ExponentialRamp - output approaches Input exponentially.
• VariableRateMonoReader - Play linear segments of an envelope or a sample.
• FourWayFade - Cross fade smoothly between four inputs.
• Pan - Pan a mono signal between two outputs.
• LinearRamp - output approaches Input linearly.
• ParabolicEnvelope - Generate an inverted parabolic arc.
• PeakFollower - Tracks the peaks of an input signal.

Filters

• FilterOneZero - output = y(n) = A0*x(n) + A1*x(n-1), first order, one zero.
• FilterOnePole - output = y(n) = A0*x(n) - B1*y(n-1), first order, one pole.
• FilterOnePoleOneZero - output = y(n)  = A0*x(n) + A1*x(n-1) - B1*y(n-1), first order, one pole, one zero. (allpass)
• FilterTwoPoles - output = y(n) = A0*x(n) - B1*y(n-1)  - B2*y(n-2), second order, two pole. (reson)
• FilterTwoPolesTwoZeros - output = y(n) = 2.0 * (A0*x(n) + A1*x(n-1)  + A2*x(n-2) - B1*y(n-1)  - B2*y(n-2)), second order, two pole, two zero.
• FilterBandPass - cuts frequencies outside a narrow band.
• FilterBandStop - cuts frequencies within a narrow band.
• FilterHighPass - resonant biquad, cuts out lower frequencies.
• FilterHighShelf - resonant biquad, cuts out higher frequencies with a flat response below the knee.
• FilterLowPass - resonant biquad, cuts out higher frequencies.
• FilterLowShelf - resonant biquad, cuts out lower frequencies with a flat response below the knee.
• FilterStateVariable - State Variable Resonant Filter with LowPass, BandPass and HighPass outputs.

Miscellaneous

• Delay - output = Input delayed by specified amount.
• InterpolatingDelay - output = Input delayed by variable amount.
• LineOut - Input[0:1] goes to global mixer then to DAC.
• LineIn - Output[0:1] comes from a microphone or Line Level input.
• FunctionEvaluator - Interpolate value from a Function or a lookup table. Used for wave shaping, complex function lookup.

Noise

• RedNoise - Linearly interpolate between noise values with Frequency control.
• WhiteNoise - output = random value evenly distributed between -1.0 and <1.0.

Oscillators and Generators

• GrainFarm - Granular synthesis engine.
• ImpulseOscillator - Impulse train with Frequency and Amplitude control. Sharp spikes.
• ImpulseOscillatorBL - Impulse train with Frequency and Amplitude control. Sharp spikes.  (Band Limited version)
• PulseOscillator - Pulse wave oscillator with width control.
• PulseOscillatorBL - Pulse wave oscillator with width control. (Band Limited version)
• SawtoothOscillator - Sawtooth wave oscillator. Harsh.
• SawtoothOscillatorBL - Sawtooth wave oscillator. Harsh. (Band Limited version)
• SineOscillator - Sine wave oscillator. Pure smooth tone.
• SquareOscillator - Square wave oscillator. Buzzy.
• SquareOscillatorBL - Square wave oscillator. Buzzy. (Band Limited version)
• FunctionOscillator - Arbitrary waveform generated by a Function or table lookup.
• TriangleOscillator - Triangle wave oscillator. Almost as smooth as sine wave.

Sample Related

• FixedRateMonoReader - Plays mono samples at a fixed rate.
• FixedRateStereoReader - Plays stereo samples at a fixed rate.
• VariableRateMonoReader - Plays mono samples or envelopes at a variable rate with linear interpolation.
• VariableRateStereoReader - Plays stereo samples at a variable rate with linear interpolation.
• FixedRateMonoWriter - Writes to a mono sample. Used for delay line for echo/reverb/delay effects.
• FixedRateStereoWriter - Writes to a stereo sample.