Question

Suppose we listen to a 500 Hz sine wave at an SIL of 20 dB. At what SIL would a 60 Hz sine wave be perceived to be as loud as the 500 Hz sine wave?

Group of answer choices

70 dB SIL

20 dB SIL

35 dB SIL

50 dB SIL

90 dB SIL

Suppose you record an electric bass guitar and a singer at a concert. Then you go home and listen to your recording at an SIL much lower that the SIL you were exposed to at the concert. The get the most realistic sound you should...

Group of answer choices

Play the sound back with the low and high frequencies at the same relative intensities as they were recorded at.

Reduce the intensity of the low frequencies relative to the high frequencies.

Boost the low frequencies relative to the high frequencies.

Suppose you listen to a 4 kHz sine wave at a loudness of 40 Phons. If I want a 125 Hz sine wave to have the same perceived loudness, what should its loudness in Phons be?

Group of answer choices

20 Phons

30 Phons

40 Phons.

50 Phons

60 Phons

Suppose you listen to a 4 kHz sine wave at a loudness of 40 Phons. If I want a 125 Hz sine wave to have the same perceived loudness, what should its sound intensity level in dB be?

Group of answer choices

20 dB SIL

30 dB SIL

40 dB SIL

50 dB SIL

60 dB SIL

Answer 1