Function spectralDistance

spectralDistance(
    a: StereoFrames,
    b: StereoFrames,
    options?: SpectralDistanceOptions,
): SpectralDistanceResult
How far apart two renders sound, as the mean absolute difference of their log spectra: the number to watch when one synthesis engine is tuned toward another's reference, or when a change must not alter a render. Both are folded to mono and brought to the first one's sample rate; the shorter is padded with silence. Bins more than floorDb below the loudest of the pair do not count, so inaudible noise cannot dominate the figure.
Parameters
- a: StereoFrames
- b: StereoFrames
- options: SpectralDistanceOptions = {}
Returns SpectralDistanceResult
Example
```
import { spectralDistance } from '@datamoc/mwg/audio';

declare const reference: { sampleRate: number; left: Float32Array; right: Float32Array };
declare const candidate: { sampleRate: number; left: Float32Array; right: Float32Array };

console.log(spectralDistance(reference, candidate).decibels);
```
- Defined in src/audio/SpectralDistance.ts:51