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leospyder

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Can someone help me with the following questions (I have no idea where to begin in either case). There are no questions that follow these same types of concepts in the book problems.

1) A 6000 Hz tone must have what sound level to seem as loud as a 100

Hz tone that has a 50 dB sound level?

2) In audio and communications systems, the gain, denoted by b, in

decibels is defined as

[tex] \beta = (P_{out}/P_{in}) [/tex]

where [tex]P_{in}[/tex] is the power input and [tex]P_{out}[/tex]

is the power output. Assume a particular stereo amplifier will put out 150 W of

power for an input of 1 mW. What is its gain in dB?

1) A 6000 Hz tone must have what sound level to seem as loud as a 100

Hz tone that has a 50 dB sound level?

2) In audio and communications systems, the gain, denoted by b, in

decibels is defined as

[tex] \beta = (P_{out}/P_{in}) [/tex]

where [tex]P_{in}[/tex] is the power input and [tex]P_{out}[/tex]

is the power output. Assume a particular stereo amplifier will put out 150 W of

power for an input of 1 mW. What is its gain in dB?

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