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TODO.md

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AudioIO Todo List

New Additions

  • Add chain and fan connection methods to all nodes.
  • BrownNoise buffer, and adding BrownNoise buffer to NoiseOscillator.
  • Seeded random
  • Remaining logical operators (NAND, NOR, XOR, NXOR)
  • FilterBank (xfade), with HP, BP, LP, Notch to fade between.
  • Chorus
  • Flanger
  • Phaser
  • BufferLoader
  • Multi-waveform LFO, inc. jitter
  • Env Follower (see tests/node-sketches/average.html)
  • Convolver / ImpulseReverb
  • ImpulseGenerator
  • SampleGenerator (to be used by GeneratorPlayer)
  • More envelope templates (D, AD, ADBDSR, DR, SR)
  • Xfading OscillatorBank with both FM and PM.
  • Implementation of Schroeder's AllPass graph (fig2: http://www.ece.rochester.edu/~zduan/teaching/ece472/reading/Schroeder_1962.pdf)

Refactoring

  • Add color control to NoiseOscillator.

  • No default values for Nodes

    • If values to Node arguments are provided then they will be passed to the controlling Param instances.
    • If not, then Params will simply be gain nodes with no drivers, i.e. pass-thrus. Controlling Param instances will therefore be needed to be controlled by Constants connected to these Params.

  • Use WeakMaps to store Node graphs. There is a WeakMap shared by all instances (and sub-instances) of the Node class. Use this for all Node subclasses.

  • Change OscillatorBank to use Crossfader instead of Switch.

  • Add start and stop controls to OscillatorBank, to mimic NoiseOscillator.

  • Consider making *Bank classes sub-class Crossfader. Not doing this. Duplication of control parameters.

  • Ensure graph objects themselves are removed during cleanUp operations, and not just the graph's keys.

  • New folder structure:

    • src/

      • core/

        • AudioIO
        • Node
        • Param
        • signalCurves
        • overrides
        • config

      • banks/

        • FilterBank

      • buffers/

        • Sine
        • Triangle
        • Sawtooth
        • Square

      • envelopes/

        • CustomEnvelope
        • DEnvelope, ADEnvelope, DREnvelope, SREnvelope, ASDREnvelope, ADBDSREnvelope

      • fx/

        • delay/

          • Delay, PingPongDelay, StereoDelay, DiffuseDelay

        • eq/

          • 4-band, 8-band, Custom.

        • filter/

          • Filter (generic), CombFilter, ...

        • phase/

          • Phaser, Flanger, Chorus

        • reverb/

          • ConvolutionReverb (using built-in ConvolverNode), CustomReverb (using DiffuseDelay)

        • saturation/

          • Saturation, SineShaper

        • utility/

          • Compressor, Expander (?), Panner, EnvFollower, LFO inc. jitter.

      • generators/

        • OscillatorGenerator
        • SampleGenerator

      • instruments/

        • GeneratorPlayer

      • macros/

        • Counter
        • Crossfader
        • PhaseOffset
        • StereoWidth

      • oscillators/

        • OscillatorBank
        • NoiseOscillatorBank
        • FMOscillator
        • PMOscillator
        • FMPMOscillator
        • SyncOscillator (?! Use Counter to control start position of custom wave buffer?)

      • nodes/

        • Bank

        • WaveShaper (inherit Node)

        • math/

          • trigonometry/

            • Sin, Cos, Tan, DegToRad, RadToDeg

          • logical-operators/

            • LogicalOperator, AND, NAND, NOR, NOT, OR, XOR, NXOR

          • relational-operators/

            • EqualTo, EqualToZero, GreaterThan, GreaterThanZero, LessThan, LessThanZero
            • IfElse

      • utility/

        • BufferLoader
        • BufferHelper (perform normalize, reverse, basic math ops, etc. on a Buffer)
        • ImpulseGenerator (create Buffers to be used as impulses for ConvolverNode)

    • tests/

      • jasmine/
      • visual-tests/