8. Suppose a noise has an intensity spectrum level of 30 dB and a bandwidth of 100 Hz. What is the total band level (i.e., measured SPL) of the signal? * O 10 dB O 50 dB 130 dB O 70 dB 9. Now suppose I reduce the bandwidth of the signal in #8 in half, reducing the frequency range it covers. What will happen to the sound level? * O It will increase by 3 dB It will increase by half O It will double O It will decrease by 3 dB O It will remain unchanged
8. Suppose a noise has an intensity spectrum level of 30 dB and a bandwidth of 100 Hz. What is the total band level (i.e., measured SPL) of the signal? * O 10 dB O 50 dB 130 dB O 70 dB 9. Now suppose I reduce the bandwidth of the signal in #8 in half, reducing the frequency range it covers. What will happen to the sound level? * O It will increase by 3 dB It will increase by half O It will double O It will decrease by 3 dB O It will remain unchanged
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Transcribed Image Text:8. Suppose a noise has an intensity spectrum level of 30 dB and a
bandwidth of 100 Hz. What is the total band level (i.e., measured SPL)
of the signal? *
10 dB
50 dB
130 dB
O 70 dB
9. Now suppose I reduce the bandwidth of the signal in #8 in half,
reducing the frequency range it covers. What will happen to the sound
level? *
O It will increase by 3 dB
O It will increase by half
O It will double
O It will decrease by 3 dB
O It will remain unchanged
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