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v=document.querySelectorAll("video")[0] var audioCtx = new AudioContext(); var em_source = audioCtx.createMediaElementSource(v); var gainNode = audioCtx.createGain(); gainNode.gain.value=3; em_source.connect(gainNode); gainNode.connect(audioCtx.destination); v.playbackRate=15

Flutter 설치 https://flutter.dev/docs/get-started/install Install Install Flutter and get started. Downloads available for Windows, macOS, Linux, and Chrome OS operating systems. docs.flutter.dev bin폴더 경로 주소 복사 후, 시스템 환경 변수에 등록 flutter --version # 버전 확인 flutter doctor # 필요한 프로그램 확인 pubspec.yaml Get Packages 패키지명 /android/app/src/main/AndroidManifest.xml /android/app/build.gradle apk 빌드하기 pubspec.y..