22 lines
1.5 KiB
Rust
22 lines
1.5 KiB
Rust
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/// The data stored used for the spectrum analyzer. This also contains the gain reduction and the
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/// threshold curve (which is dynamic in the sidechain matching mode).
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///
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/// All of these values are raw gain/amplitude or dB values obtained directly from the DSP code. If
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/// this needs to be skewed for visualization then that should be done in the editor.
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///
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/// This pulls the data directly from the spectral compression part of Spectral Compressor, so the
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/// window size and overlap amounts are equal to the ones used by SC's main algorithm. If the
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/// current window size is 2048, then only the first `2048 / 2 + 1` elements in the arrays are used.
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pub struct AnalyzerData {
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/// The amplitudes of all frequency bins in a windowed FFT of Spectral Compressor's output. Also
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/// includes the DC offset bin which we don't draw, just to make this a bit less confusing.
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pub spectrum: [f32; crate::MAX_WINDOW_SIZE / 2 + 1],
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/// The gain reduction applied to each band, in decibels. Positive values mean that a band
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/// becomes louder, and negative values mean a band got attenuated. Does not (and should not)
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/// factor in the output gain.
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pub gain_reduction_db: [f32; crate::MAX_WINDOW_SIZE / 2 + 1],
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// TODO: Include the threshold curve. Decide on whether to only visualizer the 'global'
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// threshold curve or to also show the individual upwards/downwards thresholds. Or omit
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// this and implement it in a nicer way for the premium Spectral Compressor.
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}
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