Freq [Hz]	D (IN closed, OUT open) [dB]	D (IN open, OUT closed) [dB]	D (Both door closed) [dB]
2.0	4.084303361302858	-1.215706975952429	1.3674708007406053
4.0	-4.134497845283093	-3.8921346466977695	-5.182262924052253
8.0	-0.3667838365680609	-0.8594237542273362	-0.6476058959812008
15.6	16.68095549892581	16.749684168677305	19.2674691994995
31.2	14.72606542523863	12.38679504109163	22.9676881516623
62.6	18.808457695958964	19.960991063123025	29.6146362378869
125.0	18.563279657901255	22.565677920750268	30.27390998467652
250.0	25.178734309486636	22.861003178474192	42.54476110946021
500.0	23.18475614296872	23.880099100994364	38.90688747317152
1000.2	18.12393006711164	19.480766118370084	30.38280387820555
2000.0	20.196273708384545	23.284233941836035	35.10617216317441
4000.0	21.497700295179854	25.16488261332146	37.845422240151635