import { VRMExpressionPresetName } from "@pixiv/three-vrm";

//#region src/use-vrm-vowel-analyser/index.d.ts
type VowelExpression = Extract<VRMExpressionPresetName, 'aa' | 'ih' | 'ou' | 'ee' | 'oh'>;
interface VowelAmplitudes extends Record<VowelExpression, number> {}
interface UseAnalyserVowelOptions {
  /** Volume threshold to start cycling vowels (default: 0.1) */
  threshold?: number;
  /** Seconds between vowel changes (default: 0.12) */
  interval?: number;
}
type VowelCallback = (vowels: VowelAmplitudes) => void;
declare function useVRMVowelAnalyser(analyserRef: React.RefObject<AnalyserNode | null>, onVowel: VowelCallback, {
  threshold,
  interval
}?: UseAnalyserVowelOptions): void;
//#endregion
export { VowelCallback as n, useVRMVowelAnalyser as r, UseAnalyserVowelOptions as t };