voice-changer/client/demo/src/001_globalHooks/001_useAudioConfig.ts

import { useEffect, useState } from "react"

export type AudioConfigState = {
    audioContext: AudioContext | null
}

export const useAudioConfig = (): AudioConfigState => {
    const [audioContext, setAudioContext] = useState<AudioContext | null>(null)

    useEffect(() => {
        try {
            const ctx = new AudioContext()
            setAudioContext(ctx)
        } catch (e) {
            console.warn(e)
            // If crate ctx failed, wait for user jesture.
            const createAudioContext = () => {
                console.log("click window")
                const ctx = new AudioContext()
                document.removeEventListener('touchstart', createAudioContext);
                document.removeEventListener('mousedown', createAudioContext);
                setAudioContext(ctx)
            }
            document.addEventListener('touchstart', createAudioContext);
            document.addEventListener('mousedown', createAudioContext);
        }
    }, [])

    console.log("AUDIO CONTEXT", audioContext)

    const ret: AudioConfigState = {
        audioContext
    }

    return ret

}