Por ter algumas dificuldades para adaptar o codigo orignal para rodar, estou disponibilizando minha verção em flutter pronta para usar.
IDE
Android Studio
flutter --version
Flutter 2.2.1 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 02c026b03c (4 months ago) • 2021-05-27 12:24:44 -0700
Engine • revision 0fdb562ac8
Tools • Dart 2.13.1
Codigo orignal
https://github.com/gyakhoe/voice_recorder
Flutter Audio Recorder (flutter_audio_recorder)
Audio players (audio_players)
Path Provider (path_provider)
cupertino_icons: ^1.0.2
flutter_audio_recorder2: ^0.0.2
path_provider: ^2.0.3
audioplayers: ^0.19.1
Samuel Lisboa www.mistarts.com.br