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Boof2015
22 lines
868 B
TypeScript
22 lines
868 B
TypeScript
import { requireNativeModule, type NativeModule } from 'expo-modules-core';
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/** Number of spectrum bins returned by getSpectrumFrame (fftSize/2, fftSize=2048). */
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export const SPECTRUM_BINS = 1024;
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/** Spectrum values are dB magnitudes in this range (silence ~ -100). */
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export const SPECTRUM_DB_MIN = -100;
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export const SPECTRUM_DB_MAX = 0;
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declare class AstraScopeModuleType extends NativeModule {
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/** Gate the audio-thread PCM tap. Off when backgrounded/paused/reduced-motion. */
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setActive(active: boolean): void;
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/**
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* Fill `out` (length should be {@link SPECTRUM_BINS}) with the latest dB
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* spectrum magnitudes in place; returns the number of bins written. Call once
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* per render frame from the JS thread.
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*/
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getSpectrumFrame(out: Float32Array): number;
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}
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export const AstraScope = requireNativeModule<AstraScopeModuleType>('AstraScope');
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