function dbfs_float dbfs_float(frame_array) Calculate dBFS from float array Note: It supports -1.0 ~ 1.0 amplitude array. Out of this range will be thrown error. Parameters frame_array Audio PCM frame array Return Type Throws TypeError If frame_array is not Float32Array or Float64Array RangeError If frame_array is empty array RangeError If frame_array has over 1.0 or under -1.0 elements