This test will help you evaluate the masking effect of the ambient noise present in your listening room.
48 dB | Mute |
The first file tests the target (48 dB here) by alternating noise at a full scale level and the same noise 48 decibels below the full scale: 1 second at full scale, 1 second at -48 dB, then 1 second again at full scale, and 1 second at -48 dB. The second file alternates full sale level noise and pure digital silence.
48 dB Mute | |
Listen to [?] then vote — multiple guesses not allowed (your vote triggers a new draw) |
To pass a blind test, you will need to perform 10 trials at least, obtain a high score and reach a high confidence level: 95% is standard to rate statistical significance. It means that your score outperforms random guesses by 95%. There is still a probability that you just got lucky though, 5%. To reduce such probability to 1%, keep testing until you reached a confidence level of 99%.
If you didn't pass this test, try with a lower dynamic range difference. Change the target on the top of this column.
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