AUDIO BASICS (Part 2): Properties of a Sound Wave

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  • เผยแพร่เมื่อ 23 ธ.ค. 2024

ความคิดเห็น • 56

  • @AudioUniversity
    @AudioUniversity  3 ปีที่แล้ว

    Need help setting up your studio? Check out these free resources I've created for you...
    Recording Studio Checklist: audiouniversityonline.com/free-home-studio-checklist/
    Speaker Placement Guide: audiouniversityonline.com/speaker-placement-guide/

  • @HaharuRecords
    @HaharuRecords 2 ปีที่แล้ว +5

    Even though I knew already a bunch of fundamental stuff about sound but I have no option to leave any video of this channel without watching. Audio University explains so deep and yet very pleasing. There is always to learn a new thing, in a different approach

  • @GED19904
    @GED19904 2 ปีที่แล้ว +3

    Thanks! Although I do know most of the stuff your talking about I haven't seen a channel so well put together explaining everything in an easy way for everyday people to understand.

  • @vickielarsen8066
    @vickielarsen8066 4 ปีที่แล้ว +2

    Wow. Clear, direct, precise, and straight to the point. The visuals help tremendously. Can't thank you enough for these videos.

    • @AudioUniversity
      @AudioUniversity  4 ปีที่แล้ว

      I’m glad to hear the videos are helpful! Thank you! I really appreciate that! Please share with others who are learning audio production! Also, let me know if you would like to see any subjects covered in future videos.

  • @Parterico
    @Parterico 4 ปีที่แล้ว +5

    His videos are so underrated! Thanks for the amazing information in all of your videos!

    • @AudioUniversity
      @AudioUniversity  4 ปีที่แล้ว

      Thanks for watching, @Patriks Purvins!

  • @christopherharv
    @christopherharv ปีที่แล้ว +1

    Great videos as always, I'm taking notes like a madman. Should have done this YEARS ago, but better late than never!
    I am thrown on that last one, how adding 6dB doubles the SPL and subtracting 6dB cuts the SPL in half. I would love to hear this expanded on, maybe I will as I keep making my way through your unbelievably valuable videos. Thank you so much for this free education .

    • @AudioUniversity
      @AudioUniversity  ปีที่แล้ว +1

      Thanks, Christopher! Check out this video: th-cam.com/video/xSe7y9tYex8/w-d-xo.html

  • @ivanorokkhito9727
    @ivanorokkhito9727 3 ปีที่แล้ว +1

    Very Informative. The good thing is you are explaining the physics behind sound. This is valuable. Thank you very much.

  • @gokulv.k.2347
    @gokulv.k.2347 3 ปีที่แล้ว +3

    Hi, Just wanted to let you know that you're doing a fantastic work ❤️

  • @davidjustamante1449
    @davidjustamante1449 ปีที่แล้ว

    Adding/subtracting 3 dB is doubling/halving. 6 dB is quadrupling/quartering. Aside from that minute detail, VERY well done! Thank you!

    • @SamiKankaristo
      @SamiKankaristo ปีที่แล้ว

      That's not quite correct either. Adding/subtracting 3 dB doubles/halves the power, but adding/subtracting 6 dB doubles/halves the SPL (sound pressure level), like the video says. And adding/subtracting 10 dB doubles/halves the apparent loudness (how humans actually hear things).

  • @simpleaspossiblea6895
    @simpleaspossiblea6895 4 ปีที่แล้ว +1

    Thanks for the videos. You have a way of putting all the cookies on the lower shelf so us kids can get at them. That's talent. Much appreciated. I'm now a subscriber.

    • @AudioUniversity
      @AudioUniversity  4 ปีที่แล้ว

      Thanks! I’m just putting the information out there the way my teachers taught me! I’m glad the videos are helpful!

  • @vvelaquex
    @vvelaquex 4 ปีที่แล้ว +1

    It looks to easy to understand in your teaching approach! Thanks

    • @AudioUniversity
      @AudioUniversity  4 ปีที่แล้ว

      Thank you very much, Victor! Please share with others learning audio!

  • @lucascipriano1665
    @lucascipriano1665 4 ปีที่แล้ว

    I am loving this series, recently ive been thinking about getting more serious about music and understanding audio quality in general and I can already see this will be a great starting point as I love this systemic and organized way of learning. Thank you very much.

    • @AudioUniversity
      @AudioUniversity  4 ปีที่แล้ว +1

      I’m glad this series is helping you to learn more about audio, Lucas! Are there any topics you’d like me to cover in other videos?

  • @TricoliciSerghei
    @TricoliciSerghei ปีที่แล้ว

    Very very nice explanation!!! Thanks!

  • @haleymidgette9184
    @haleymidgette9184 3 ปีที่แล้ว +1

    Thank you for making these videos! Super clear, super helful :)

    • @AudioUniversity
      @AudioUniversity  3 ปีที่แล้ว

      Thanks for watching, Haley. Glad to help!

  • @praneethdhanushka207
    @praneethdhanushka207 4 ปีที่แล้ว +1

    Dear sir, your demo is great! Congrats!!! I have a bad mind on Guitar, DI box and 1/4 inch TRS.
    Generally we need to fix a DI box when we plug guitar to mixer or other way is via guitar amplifier. But TRS jacks are balanced cable and mixer input is also balance input.
    Although I have seen many people use DI box and mono TS cables. Why?? We can't use TRS balance cable to fix directly to mixer???? Thanks

    • @AudioUniversity
      @AudioUniversity  4 ปีที่แล้ว +1

      A DI box is primarily used to match impedance between the guitar and the mixer.
      Guitars have high impedance (Hi-Z) outputs. Mixers usually have low impedance (Lo-Z) inputs. Using a DI box will match the impedance so that the system works properly.
      Also, the guitar output jack is a TS. Using a TRS could cause the signal to be cancelled out by the differential input of the mixer.

  • @tonyredgrave009
    @tonyredgrave009 ปีที่แล้ว +1

    this is a nice review of what i've learned in school, but do you have a video on why waveforms on practical recordings look more complicated and nonuniform compared to this?

    • @AudioUniversity
      @AudioUniversity  ปีที่แล้ว +1

      The waveforms shown in this video are simple signals, containing only one frequency. In practice, you’ll see complex signals, containing many frequencies. You can learn more here: th-cam.com/video/GLnrysQ1Erg/w-d-xo.html

    • @tonyredgrave009
      @tonyredgrave009 ปีที่แล้ว +1

      ​@@AudioUniversity I'm learning a bit, but the graphs confuse me a little. The graphs of the tone generator in that video aren't pressure over time but levels over frequency. I'm curious as to what the graphs of the tone generator would look like when shown as waveforms like in this video.

    • @AudioUniversity
      @AudioUniversity  ปีที่แล้ว

      Check out the topic “Fourier Transform”. It’s actually a pretty fascinating topic!

  • @robertsimmons2775
    @robertsimmons2775 2 ปีที่แล้ว +1

    thank you!

  • @danieltriana1937
    @danieltriana1937 3 ปีที่แล้ว +1

    I wonder why the youtube algorithm thinks I prefer to watch random videos from 2010 instead of this.
    Thanks!, great video.

  • @UNPOSEDPhotography
    @UNPOSEDPhotography 3 ปีที่แล้ว +1

    Excellent, this is really we explained

    • @AudioUniversity
      @AudioUniversity  3 ปีที่แล้ว

      Glad it was helpful! Thanks for watching!

  • @terryhigson434
    @terryhigson434 3 วันที่ผ่านมา

    3db is a doubling of sound/energy?

  • @dariofromthefuture3075
    @dariofromthefuture3075 2 ปีที่แล้ว

    I don't understand how you can change period without changing the frequency? I'm not sure you explained it right. If frequency is measured in CPS - then if we adjust the second -- than frequency would also be adjusted in proportion. At least the way you explained it here. Would love some help here thanks

  • @highendcustomdesigncaraudi1777
    @highendcustomdesigncaraudi1777 3 ปีที่แล้ว +1

    Very useful thank u

  • @MatthewProAudio.11
    @MatthewProAudio.11 ปีที่แล้ว +1

    looking for a book on this topics you are teaching in this video

    • @AudioUniversity
      @AudioUniversity  ปีที่แล้ว

      Check out this video for book recommendations: th-cam.com/video/xRUSEsvtQys/w-d-xo.html

  • @PraveenKumar-fs6of
    @PraveenKumar-fs6of 4 ปีที่แล้ว +1

    Hello Buddy, What happens to Your last Video ?.
    Why you make that *Private* ?.
    & i asked a Question in that video please Reply for that Question please 🙏.

    • @AudioUniversity
      @AudioUniversity  4 ปีที่แล้ว +3

      I had to make a revision. It will be back up soon.
      Here is the answer to your question:
      The length of the cable is not the problem. Sound fidelity is reduced in LONGER cables and is better with shorter cables.
      The problem you’re experiencing is most likely one of the following:
      1. A poor connection between wires (most headphones use very small wires that are difficult to work with manually).
      2. There is something wrong with the speaker drivers or diaphragms.
      What is the quality of the sound? (Distorted, muffles, etc)?

    • @PraveenKumar-fs6of
      @PraveenKumar-fs6of 4 ปีที่แล้ว

      Thanks for the Super Quick Reply .🙏
      & About the sound Quality is Like it lost High Tones (terrible) & Really Bad Quality Base, that Hurts My Ears .
      Can it be Due to Wrong Polarity of My Soldering ?

    • @AudioUniversity
      @AudioUniversity  4 ปีที่แล้ว

      Polarity wouldn’t cause this problem. You can learn about that in this video: POSITIVE VS NEGATIVE: Does Speaker Wiring Matter? th-cam.com/video/EeKT4yD3UX4/w-d-xo.html
      How many wires were in the cable?

    • @PraveenKumar-fs6of
      @PraveenKumar-fs6of 4 ปีที่แล้ว

      3 Wires are in The Cable . Red Green & Yellow.
      & Connections are really strong (Soldered by me carefully).
      I think Red & Green are L & R & yellow is Common .🤔

    • @AudioUniversity
      @AudioUniversity  4 ปีที่แล้ว

      Are you getting sound on both sides, Left and Right?

  • @heartless1645
    @heartless1645 3 ปีที่แล้ว +1

    ❤️

  • @RocKnMetaL97
    @RocKnMetaL97 ปีที่แล้ว

    There is something that i don't understand about the part of the lenght of a wave: given the sown equation (wavelenght = speed of sound/frequency), you can figure out how actually large 1 cycle of the wave of a certain frequency actually is: so if i want to know how large is a wave of let's say, 440hz, you do 343 m/s divided by 440hz, so 343/440 = 0.75. (i googled it and its true, the wavelenght is in fact 0.75 mts wide).
    So what i don't understand is: if a sinewave playing a frequency of 440hz through an amp speaker has a wavelenght of 0.75 mts (that is, if i didn't misunderstand, when the wave completes a cycle, the wave would've travelled 0.75 mts), *how is it that i can hear it using headphones??* I shouldn't be supposed to, because there is literally less that 4 cm between the speaker of my left headphone and the timpani in my ear, so the wave has no time to form in order for my ear to identify it as that certain frequency.
    Of course, what happens is that i do hear it normally, so evidently there's something i'm not understanting (and it drives me nuts not understanding something). What is it?

  • @Rene_Christensen
    @Rene_Christensen 3 ปีที่แล้ว +1

    Careful now. The phase numbers you show in the beginning is the phase of the so-called complex Phasor. Looking at the real sin signal alone you would say that the phase is zero with an amplitude of one.

    • @AudioUniversity
      @AudioUniversity  3 ปีที่แล้ว

      Thanks for sharing, Rene Christensen! Much appreciated!

  • @sxmmii_gxchaa774
    @sxmmii_gxchaa774 ปีที่แล้ว

    AUDIO BASICS