Like most of our other filters, the frequency cutoff had mixed results that varied on the genre in question. Some samples it is readily able to identify, while others if finds quite difficult to pin point directly. For instance, if you fed the filter a sample of classical and a sample of techno, it would have no problem telling you the difference between them. This is because techno has a majority of its energy concentrated at only a few frequencies while classical has its power spread more evenly over a wider band. On the other hand if you were to input samples of punk and country, the filter might tell you that The Ramones sound like Hank Williams. Looking at these results though is not the whole story. A more telling relationship is isolated when the Standard Deviations of these outputs are analyzed. It becomes difficult to isolate any one genre but it does separate them into two main categories:
Classical, Punk and Country
Techno, Jazz, and Rap
Group one consists of the genres who retained only 40-50 coefficients above the thresh hold, while the genres of group two consistently preserved at least 90 coefficients per sample. This wide gap between them should paint a fairly clear picture of the differences between genres with respect to their cutoff frequencies. This alone isn’t very helpful, but when used in conjunction with other filters, this could prove to the first step in a very powerful tool to help classify music.
Questions & Answers
A golfer on a fairway is 70 m away from the green, which sits below the level of the fairway by 20 m. If the golfer hits the ball at an angle of 40° with an initial speed of 20 m/s, how close to the green does she come?
A mouse of mass 200 g falls 100 m down a vertical mine shaft and lands at the bottom with a speed of 8.0 m/s. During its fall, how much work is done on the mouse by air resistance
Chemistry is a branch of science that deals with the study of matter,it composition,it structure and the changes it undergoes
Adjei
please, I'm a physics student and I need help in physics
Adjanou
chemistry could also be understood like the sexual attraction/repulsion of the male and female elements. the reaction varies depending on the energy differences of each given gender. + masculine -female.
Pedro
A ball is thrown straight up.it passes a 2.0m high window 7.50 m off the ground on it path up and takes 1.30 s to go past the window.what was the ball initial velocity
2. A sled plus passenger with total mass 50 kg is pulled 20 m across the snow (0.20) at constant velocity by a force directed 25° above the horizontal. Calculate (a) the work of the applied force, (b) the work of friction, and (c) the total work.
you have been hired as an espert witness in a court case involving an automobile accident. the accident involved car A of mass 1500kg which crashed into stationary car B of mass 1100kg. the driver of car A applied his brakes 15 m before he skidded and crashed into car B. after the collision, car A s
can someone explain to me, an ignorant high school student, why the trend of the graph doesn't follow the fact that the higher frequency a sound wave is, the more power it is, hence, making me think the phons output would follow this general trend?
Nevermind i just realied that the graph is the phons output for a person with normal hearing and not just the phons output of the sound waves power, I should read the entire thing next time
Joseph
Follow up question, does anyone know where I can find a graph that accuretly depicts the actual relative "power" output of sound over its frequency instead of just humans hearing
Joseph
"Generation of electrical energy from sound energy | IEEE Conference Publication | IEEE Xplore" ***ieeexplore.ieee.org/document/7150687?reload=true
A string is 3.00 m long with a mass of 5.00 g. The string is held taut with a tension of 500.00 N applied to the string. A pulse is sent down the string. How long does it take the pulse to travel the 3.00 m of the string?
