signal_core 0.3.0

Format-agnostic multichannel signal engine: summary pyramids for fast zooming, display filters (SOS, zero-phase and streaming), re-referencing, channel quality and random-access byte sources. Pure Dar [...]

0.3.0

• Synthetic test signals. SignalGenerator sums SynthComponents per channel (ChannelRecipe): sine, square, sawtooth, chirp, DC and impulse waveforms; white, pink and line noise; drift, spikes, blinks and alpha bursts; with optional clipping or a flat channel. The output depends only on the seed, however it is divided into chunks, and the onsets of transients are reported as SynthEvents.
• SynthSpec and SynthPreset: sines, a test pattern, resting EEG, EEG with artefacts, line noise and a stress signal for high channel counts.
• SynthRun paces a generator in real time on a given clock, with simulated dropouts and time stamp jitter (Impairments) and markers at regular intervals or at the signal's events (MarkerSchedule).

0.2.0

• Samples are kept as the source has them: SignalWindow.channels and StreamColumns.channels are List<List<double>>, 64-bit by default, and so are the engine's filtered tiles and LiveProcessor's output.
• SamplePrecision: exact (the default) or compact (32-bit floats, half the memory) for ChunkedSignalEngine and LiveProcessor. Envelopes and summary pyramids, which are drawn, stay 32-bit.

0.1.0

• Initial version, extracted from libhyperscanner 0.4.1: ChannelRef, DerivedSpec, envelope and read requests, SummaryPyramid, Sos, SosStreamFilter, LiveProcessor, QualityTracker and ByteSource.