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Summary of the groups tested.
| Spatial filters | Condition | Attack / release time constant | Subjects tested | Subjects included | |
|---|---|---|---|---|---|
| Exp. 1 | Gardner and Martin, 1994 | Fast | 11/82 ms | 11 | 10 |
| Slow | 48/730 ms | 11 | 10 | ||
| Exp. 2 | Recorded in classroom | Reverberant | 11/82 ms | 17 | 13 |
| Intermediate (reverb -6 dB) | 11/82 ms | 10 | 10 | ||
| Anechoic (direct sound) | 11/82 ms | 14 | 10 |
