What dB level corresponds to a 500 Hz tone that is perceived to be at 40...

What dB level corresponds to a 500 Hz tone that is perceived to be at 40 phons?

Expert Solution

The lines on the graph in Figure 1 are referred to as equal loudness curves; each line is representative of a specific phon rating. The coordinate axes are the decibel rating and the frequency. To determine the dB rating of a sound with a given frequency and phon rating, one must first locate the point on the graph with the given phon rating where cut the 500h HZ axis...

from graph the the dB level greater than 40dB and near to 45 dB

genius_generous answered 4 months ago

A 100Hz tone at 40 phons is played simulataneously with a 1000 Hz tone at 60...

A 100Hz tone at 40 phons is played simulataneously with a 1000 Hz tone at 60 phons. What is the to intensity of the combined sound ? A) 40 dB B) 60 dB C) 64 dB D) 100 dB E) 120 dB

Generate and plot sinusoids of frequencies 300 Hz, 500 Hz and 1200 Hz. Plot each of...

Generate and plot sinusoids of frequencies 300 Hz, 500 Hz and 1200 Hz. Plot each of them and their sum using the “subplot” command in one figure. Indicate the axes’ titles.

A complex sound has spectral components at 600-900-1200 and 1500 Hz what is the likely perceived...

A complex sound has spectral components at 600-900-1200 and 1500 Hz what is the likely perceived pitch of this complex sound

A noise source produces sound mainly at 2500 Hz and an SPL of 95 dB at...

A noise source produces sound mainly at 2500 Hz and an SPL of 95 dB at the location of a worker. In order to decrease this worker’s noise exposure, the employer decides to build a brick wall (? = 400 kg/m2) between source and worker. What would the sound level at the worker’s location be after the wall is built. Assume that the wall is perfect and that the sound must go through it (not around it).

Two test pilots are in identical jets that produce a characteristic tone of 507 Hz. One...

Two test pilots are in identical jets that produce a characteristic tone of 507 Hz. One jet is stationary on the airstrip and the second is approaching the airstrip at a speed of 64.6% the speed of sound. Take the speed of sound in air to be 343 m/s. The pilot of each jet listens to the sound produced by the other jet. Determine the following. (a) Which pilot hears a smaller Doppler shift? the stationary pilotthe moving pilot (b)...

Suppose you hear a car approaching and its horn is heard as a 3037. Hz tone....

Suppose you hear a car approaching and its horn is heard as a 3037. Hz tone. After passing, you hear 2430. Hz. (a) What was the Mach number of the car?

A sound wave with an intensity level of 80.6 dB is incident on an eardrum of...

A sound wave with an intensity level of 80.6 dB is incident on an eardrum of area 0.600 ✕ 10-4 m2. How much energy is absorbed by the eardrum in 4.0 minutes? µJ? A source of sound waves of frequency 1.2 kHz is traveling through the air at 0.55 times the speed of sound. (a) Find the frequency of the sound received by a stationary observer if the source moves toward her. Hz (b) Repeat if the source moves away...

DB 1- What is the time value of money? DB 2- What is the nature of...

DB 1- What is the time value of money? DB 2- What is the nature of interest? Distinguish between “simple interest” and “compound interest.” DB 3- What are the primary characteristics of an annuity? Differentiate between an “ordinary annuity” and an “annuity due.

If 300 m away from an ambulance siren the sound intensity level is 65 dB, what...

If 300 m away from an ambulance siren the sound intensity level is 65 dB, what is the sound intensity level 30 m away from that ambulance siren? Specify your answer in units of decibel (dB).

4)Design a band-pass filter with a passband from 500 Hz to 2000 Hz using “butter” routine...

4)Design a band-pass filter with a passband from 500 Hz to 2000 Hz using “butter” routine of MATLAB. Assume a sampling frequency of 8KHz. Let the filter order be M=4. Plot the magnitude response and provide the filter coefficients and the transfer function

Question