Table 1
Overview of broadband room acoustic parameters, T30, Direct to Reverberant Ratio (DRR), SNR and Speech transmission index (STI). T30 and DRR are shown for the measured and simulated BRIRs for the four different source positions in the living room lab. Speech Transmission Index for the measured and simulated BRIRs for the three different target positions in the living room lab (for both channels). Broadband SNRs for the three different target positions for measured and simulated BRIRs (left and right channels shown individually). SNRs in the bottom two rows (indicated with an asterisk) include the level adaptation.
STV |
S5 |
S7 |
S4 |
|||||
---|---|---|---|---|---|---|---|---|
Broadband T30 (s) | avg. across ears | avg. across ears | avg. across ears | avg. across ears | ||||
Meas | 0.48 | 0.49 | 0.73 | 0.49 | ||||
Sim |
0.44 |
0.44 |
0.72 |
0.42 |
||||
DRR (dB) |
Left |
Right |
Left |
Right |
Left |
Right |
Left |
Right |
BRIR Meas | −1.13 | −1.33 | −8.13 | 5.14 | – | – | 5.19 | −9.53 |
BRIR Sim |
0.67 |
1.64 |
−9.24 |
7.20 |
– |
– |
7.11 |
−9.18 |
STI |
Left |
Right |
Left |
Right |
Left |
Right |
Left |
Right |
Meas | 0.83 | 0.84 | 0.76 | 0.82 | 0.62 | 0.61 | 0.81 | 0.83 |
Sim |
0.83 |
0.84 |
0.83 |
0.88 |
0.72 |
0.71 |
0.88 |
0.86 |
SNR (dB) |
Left |
Right |
Left |
Right |
Left |
Right |
Left |
Right |
Meas | −0.46 | 0.93 | −1.66 | 1.18 | −9.78 | −9.63 | – | – |
Sim | −1.78 | −0.87 | −2.28 | 0.23 | −8.41 | −10.50 | – | – |
Meas* | −0.70 | 0.70 | −1.42 | 1.42 | −0.07 | 0.07 | – | – |
Sim* | −2.01 | −1.10 | −2.05 | 0.47 | 1.29 | −0.80 | – | – |
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