URL:https://sspark.genspark.ai/cfimages?u1=xJV7QgTar6HsqldmeIAqG4iU0uUxqyvN7x4qWoTt9/WfGi9bKi1t+Gjgb9sh+80E8Mmy5olS3JY/PFyChEII0PMRiKbj4RBFsZfwWVi6uqn5dx0Wml9bfw0C+D5xnk8wIv3OlzrRT1NQGsj4gUjA+6R+j5RzpN08kVmtt43mLCK6HkZ5TI/mqA==&u2=aPVVrvwP9oTU7/4l&width=1024
掲載元:https://www.genspark.ai/spark/デシベル-db-の差を体感倍率に変換する方法/be2a2998-e021-403d-8fe1-608a4f58922d