4. Sound Power - Loudness and Level

Рет қаралды 12,342

Akash Murthy

Күн бұрын

Пікірлер: 26

@bah273 6 ай бұрын

Great Videos! Thank you for making everything crystal clear. You have a great way of explaining things.

@akashmurthy 6 ай бұрын

Thank you very much!

@jiuwang2636 2 жыл бұрын

@9:21, you are not entirely sure how useful this information is. Let me tell you, this whole video is very useful, helpful, and well made. Thank you.

@cinematichormone 2 жыл бұрын

Thankyou sir, finishing it today

@triceratops3439 3 жыл бұрын

Your videos are great! More people should watch them!

@akashmurthy 3 жыл бұрын

"If you build, they'll come" Thanks for checking it out!

@manimz39 20 күн бұрын

my man your videos are amaizing, im a sound engineering student, and we had these subjects in our acoustic classes, but I quite didn't understand, partly because my classes are not in my mother language, but I'm gonna send your channel to all of the sound engineering students i know, which I know they usually have problems with acoustics as a subject.

@akashmurthy 20 күн бұрын

Thank you very much! Glad you like it enough to share! All the best with your class

@VegasOct1Sounds 3 жыл бұрын

Thanks for your dedication and wonderful videos. I have enjoyed every video. Acoustics is a complicated subject and your videos help and I can point people to them when needed. Thanks again.

@akashmurthy 3 жыл бұрын

Thank you very much for the kind feedback! You've got a really interesting channel as well!

@sycamore2376 3 жыл бұрын

Your videos are brilliant! Thank you very much.

@akashmurthy 3 жыл бұрын

Thanks very much for checking them out!

@puspamadak 3 жыл бұрын

I had many confusions from my Physics classes. Your videos were suggested by KZbin for the subject of acoustics and they are truly interesting!

@akashmurthy 3 жыл бұрын

Cheers! I'm glad it was useful!

@SadiqUllah-f1d 9 ай бұрын

Great effort

@trunghoangchi1403 3 жыл бұрын

Thank you very much

@akashmurthy 3 жыл бұрын

You're welcome!

@chitrung92 3 жыл бұрын

Hi! thank you for sharing knowledge. One quick question at 9:14, how come there is an absolute value at the 10log(q/4pir^2)? This mean that whenever you get closer to the source than 0.282m, the spl actually get quieter? How can this possibly be?

@akashmurthy 3 жыл бұрын

Hello there! Great observation. I was thinking about the same question when I was doing the research. The reason why I didn't explain this in the video was that I wasn't a 100% sure. So the idea of sound power is purely theoretical. It's calculated for a point source. Point sources don't exist in nature, and for geometric calculations for surface area (to calculate sound pressure) we have to use a unit source rather than a point source, because the surface area of a point source is 0. In the metric system, the unit of measurement is a meter. So we consider a spehrical source of sound rather than a point source. If we do this, then the sound power is emanating from the surface of this sphere, so naturally the sound pressure will be maximum at the surface (0.282m). If you go lower in distance, it's almost like you are going into the source of sound, which doesn't make sense. But you can also think about it like this: You have a speaker in a cabinet. At the cone of the speaker, sound pressure is highest. But if you go further, you go past the cone and into the cabinet, essentially going through the source of sound to the other side. And if you think about it, sound pressure will be lower within the cabinet than at the cone.