TY  - JOUR
PY  - 2020//
TI  - Change in acoustic impulse response of a room due to a fire
JO  - Journal of the Acoustical Society of America
A1  - Abbasi, Mustafa Z.
A1  - Wilson, Preston S.
A1  - Ezekoye, Ofodike A.
SP  - e546
EP  - e546
VL  - 147
IS  - 6
N2  - A room fire creates temperature gradients and inhomogeneous time varying temperature, density, and flow fields. Experimental measurements of the room acoustic impulse/frequency response are presented and compared with a ray traced model. The results show that the fire causes wave-fronts to arrive earlier (due to the higher sound speed) and with more variation in the delay times (due to the sound speed perturbations). The frequency response shows that the modes are shifted up in frequency and high frequency (>2500 Hz) modes are significantly attenuated. Model results are compared with data and show good agreement in observed trends.<p />  <p>Language: en</p>
LA  - en
SN  - 0001-4966
UR  - http://dx.doi.org/10.1121/10.0001415
ID  - ref1
ER  -