do sound waves we can't hear interact with sound waves we can hear?

(is high res audio worth having)


Actually if inaudible sound frequencies interact with audible sound frequencies after the recording process they probably just add the impurities from the character of your speakers. So higher frequencies than what your actually hear are probably detrimental. So  shouldn't listen to anything higher than 16khz cuz I can't hear anything higher than that.

7 Answers

  • 2 months ago

    Generally, some speakers are made that can reproduce signal frequencies beyond the human hearing range, but this extension is to mechanically guarantee clarity up to the limits of the recording, which will seldom exceed 20Khz, or even achieve that level,regardless of the recording method's capabilities  20K is the top of the spectrum ears hear. Most music actually contains little, if any, such high frequency material to begin with. Simply, it's not recorded to begin with. Band Instruments do not reach these frequencies. Good speakers do not add high frequency sonic signatures of their own, and if they are not on the recording, are not there to reproduce. The bulk of home speakers would roll off well before such signal frequencies made there appearance anyway.Check the frequency driver output white sheets for most tweeters. they decline after about 22K at best for almost  every driver.. Unless you are working in a physics lab experiment , you are unlikely to be exposed to this issue, so I wouldn't worry overmuch about it.

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  • 3 months ago

    Well to the first part of your question.  Well you only need to be concerned with the interaction of frequency's within the bandwidth in which we hear.  Not that they dont matter they do, we may not hear frequency's beyond human hearing but we feel them.  So without these higher bandwidth frequency's sound quality is compromised.

    But for room acoustic concerns no they are not a issue.  

    High resolution audio is just that.  Of course it has higher sample rates and a wider bandwidth and if you were to cut those higher frequency's out contrary to what many will tell you, it does effect the overall sound.  

    Do not let anyone tell you that Mp3 is good enough or even cd quality at 44.1khz 16 bit or even 24 bit.  You can hear a noticeable difference with higher quality and bit rate music. " Assuming" the recording was recorded at a higher sample rate and not just upsampled, AND your DAC and system is of high enough quality to be able to hear the difference.

    If you cant, then its something with either the recording or your system.


    40 years high end audio video specialist

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  • 3 months ago

    To some extent, yes, there are interactions,

    but I wouldn't be too concerned about it.

    That said, there ARE benefits to high-resolution audio

    and if you wish to pursue it you should do so.

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  • John M
    Lv 7
    3 months ago

    Absolutely. You can often notice something when it isn't there to a greater degree than when it is there. Good tweeters produce frequencies well beyond 20kHz, but if you swap them out for a set that only produces frequencies up to 20kHz you'll notice the music become lifeless, and dull.

    • yes so in effect we do hear frequencies beyond 20khz through the way they interact with with the frequencies that we can hear

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  • 3 months ago

    ..................yes........hetrodyne.........go to a high end stereo shop and listen to some electrostatic MacIntosh speakers.

  • 3 months ago

    Yes, you can get beating - whether that means that hi res audio is worth having is down to you!

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    • Iridflare
      Lv 7
      3 months agoReport

      It's why you need to be able to reproduce frequencies above your auditory range - the results will be inside that range.

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  • Anonymous
    3 months ago

    Yes. Sound waves of different frequencies can interact and cause IMD or intermodular distortion. While most audio equipment makers advertise their THD or Total Harmonic Distortion, they do not often state the IMD or Inter-Modular Distortion or their equipment.

    As Wikipedia points out,

    "Practically all audio equipment has some non-linearity, so it will exhibit some amount of IMD, which however may be low enough to be imperceptible by humans. Due to the characteristics of the human auditory system, the same percentage of IMD is perceived as more bothersome when compared to the same amount of harmonic distortion."

    A while back, some audio magazines tested the IMD level of speaker systems, and some speakers have high levels of IMD. This is typically 2 way speakers (with a tweeter and a bass driver). It is one good reason to buy 3 way speakers that have a tweeter, mid-range spaker and a bass driver.They tend to have lower IMD and therefore will sound better, even if they are more expensive.

    It is true that humans cannot hear frequencies that are higher than 20,000 Hz, and there is little music content in that range but tweeters can easily reproduce sound in that range, so there is no added expense buying speaker capable of reproducing high frequencies. The real question is whether it is worth it to buy speakers that can reproduce deep bass, down to 20 Hz. There is also little music content down in 20Hz either, and many good speakers can produce bass all the way down to 30 Hz - 40 Hz. It is good enough for most people. Buying speakers that can go all the way down to 20Hz is reserved for financially well-off purists.

    Regardless of whether you want the ultimate in bass response or not, it is a good idea to buy speakers capable of deep bass, because those that are not capable of doing so often have a peak at around 100-200 Hz. Speaker designers do that to save money and to fool the inexperienced and uneducated consumers into thinking that the speakers they are buying have good bass response. A peak at any frequency range will distort the music. So if you can afford speakers that can produce deep bass accurately, with a flat frequency response down to around 30 Hz, go for it. Your music will sound better than listening through a pair of cheap speakers with a big peak at 100-200 Hz, because they make male voices sound boomy, nasal and unnatural.

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