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Version 0.17 (Next Version)

  • Wave32/64: silence is now zero.
  • New opcode impulse.
  • Attempted optimization of reverb delay times in the example optimize.
  • New opcodes node64 and node32 for converting an AudioUnit into an AudioNode.
  • New reverb opcodes reverb2_stereo and reverb3_stereo.
  • New opcodes allnest and allnest_c for nested allpass filters.
  • New opcodes tap_linear and multitap_linear for delay lines with linear interpolation.

Version 0.16

  • AudioNode now requires Send and Sync.
  • Feedback units Feedback64 and Feedback32.
  • Shape::Atan was contributed by Serdnad.
  • New opcode resynth for frequency domain resynthesis.

Version 0.15

  • Snoop node for sharing audio data with a frontend thread.
  • Meter smoothing parameters are now timescales specified in seconds.
  • Shape::SoftCrush was tweaked.
  • New adaptive distortion mode Shape::AdaptiveTanh.
  • Oversampling now employs a minimum phase halfband filter.
  • Net64Backend and Net32Backend are now called NetBackend64 and NetBackend32.
  • Sequencer64Backend and Sequencer32Backend are now called SequencerBackend64 and SequencerBackend32.
  • Slot32/64 is a real-time updatable audio unit slot with crossfading between units.
  • "Hammond" wavetable, which emphasizes the first three partials.
  • Reverb time calculation was tweaked to take into account room size.

Version 0.14

  • New math functions sqr_hz and tri_hz for non-bandlimited square and triangle waves.
  • Lorenz and Rössler chaotic system oscillators as opcodes lorenz and rossler.
  • swap_stereo is now generic reverse, which reverses channel order.
  • Resonant two-pole filter by Paul Kellett as bandrez and lowrez.
  • Sample-and-hold opcodes hold and hold_hz.
  • Fixed inbuilt waveform phases.
  • Reduced number of all-pass stages in phaser to 10.
  • Sequencer add and add_duration are now push and push_duration.
  • Reseting a node and setting its sample rate are now two distinct operations.
  • Sequencer can now have a real-time safe backend.

Version 0.13

  • Fade curves for Sequencer events. To migrate, use the curve Fade::Smooth.
  • Net32/64 now operates on stable node IDs of type NodeId. Other improvements.
  • swap opcode is now swap_stereo, to avoid possible conflicts with std::mem::swap.
  • New method AudioNode::allocate for preallocating everything.
  • Identity function has been renamed from id to identity, to match the standard library.
  • Setting system MPSC channels were async by mistake; they are now blocking.
  • Net32/64 can now have a real-time safe backend.

Version 0.12

  • More settings implemented.
  • Signal routing is now an exclusive operation, for practical reasons.
  • Granular synthesizer. FunUTD is now a dependency.
  • Block rate adapter that converts calls to block processing.
  • New random function rnd2 from Krull64 output stage.

Version 0.11

  • Composable setting system for making it easier to control basic settings in real time.
  • system opcode was renamed update.
  • New waveforms, organ and soft saw.
  • New envelope opcodes with any number of inputs: envelope_in and lfo_in.

Version 0.10

  • New opcode resample for variable speed cubic resampling.
  • Wave32/64 improvements. Symphonia integration for reading audio files.
  • Tagged constants were removed. They were not scaleable.
  • Callbacks were removed from Sequencer32/64 and Net32/64. Will reimplement if requested.
  • The follow filter now jumps immediately to the very first input value.

Version 0.9

  • detector was removed (it did not work).
  • New opcode biquad for an arbitrary biquad filter.
  • Net32/64 method add was renamed push (it conflicted with the operator implementation).
  • Graph syntax was implemented for Net32/64. They can also be combined with components from the preludes.

Version 0.8

  • semitone is now semitone_ratio.
  • New opcodes feedback2 and fdn2, which include extra feedback loop processing. The extra processing is not applied in the feedforward path.
  • Wetness argument was removed from reverb_stereo. Room size argument was added. An average room size is 10 meters. To migrate, replace reverb_stereo(wet, time) with wet * reverb_stereo(10.0, time) & (1.0 - wet) * multipass().
  • goertzel is now detector.
  • chorus gain was adjusted.
  • flanger was tweaked.
  • New opcode system with a user provided callback. See the sound module for an example.
  • Ability to replace nodes in Net32 and Net64. Improved chaining method.
  • Sequencer has been replaced with Sequencer32 and Sequencer64.
  • Au has been removed.
  • Callback functionality was added to the sequencer and network components.
  • Ability to jump in time was added to the sequencer.