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Audio signals may - and usually are - represented by EM waves. Do not confuse "audio signals" with "acoustic signals". The diagram is not only easy to understan

by aylons 11y ago

Audio signals may - and usually are - represented by EM waves. Do not confuse "audio signals" with "acoustic signals". The diagram is not only easy to understand, but also technically correct.

noselasd 11y ago
The same image appears on https://simple.wikipedia.org/wiki/Electromagnetic_spectrum https://simple.wikipedia.org/wiki/Electromagnetic_spectrum with the text: "NOTE: The AUDIO entry in this graphic is there for comparison only. Sound waves and light are two different things entirely." Imo still somewhat confusing. I've never heard anyone refer to something on the EM spectrum as audio before.
- aylons 11y ago
  You went to the simple image wikipedia just to find a citation that agrees with you, while the english Wikipedia has a whole artcicle describing it in quite an opposite way: https://en.wikipedia.org/wiki/Audio_signal https://en.wikipedia.org/wiki/Audio_signal If it is confusing, is because you do not understand what a "signal" means. A signal is not the phenomenon itself, it is a representation of it. An audio signal is a signal that represents sound, but it is not sound itself. If it were, you would not need to call it a signal, it would be simply "sound". In a slightly different use of adjective, an acoustic signal is a signal (that may or not be audio, eg, ultrassound) that is carried by sound waves. Actually, it only gets confusing if you try to be pedantic, as GP did. Everyone knows what an audio signal in a EM chart.
deleted 11y ago
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hanoz 11y ago
> The diagram is not only easy to understand, but also technically correct. It's not easy to understand and I still don't understand it. What is audio doing on this diagram?
- aylons 11y ago
  Audio is a name for signals that represent sound waves humans can hear. As we are only sensitive to sound in some frequencies, there is a range of frequencies in which audio signals may exist. This diagram shows it, probably as a more mundane reference for scale.

by aylons 11y ago

Audio signals may - and usually are - represented by EM waves. Do not confuse "audio signals" with "acoustic signals". The diagram is not only easy to understand, but also technically correct.

noselasd 11y ago

The same image appears on https://simple.wikipedia.org/wiki/Electromagnetic_spectrum https://simple.wikipedia.org/wiki/Electromagnetic_spectrum with the text: "NOTE: The AUDIO entry in this graphic is there for comparison only. Sound waves and light are two different things entirely." Imo still somewhat confusing. I've never heard anyone refer to something on the EM spectrum as audio before.

aylons 11y ago
You went to the simple image wikipedia just to find a citation that agrees with you, while the english Wikipedia has a whole artcicle describing it in quite an opposite way: https://en.wikipedia.org/wiki/Audio_signal https://en.wikipedia.org/wiki/Audio_signal If it is confusing, is because you do not understand what a "signal" means. A signal is not the phenomenon itself, it is a representation of it. An audio signal is a signal that represents sound, but it is not sound itself. If it were, you would not need to call it a signal, it would be simply "sound". In a slightly different use of adjective, an acoustic signal is a signal (that may or not be audio, eg, ultrassound) that is carried by sound waves. Actually, it only gets confusing if you try to be pedantic, as GP did. Everyone knows what an audio signal in a EM chart.

deleted 11y ago

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hanoz 11y ago

> The diagram is not only easy to understand, but also technically correct. It's not easy to understand and I still don't understand it. What is audio doing on this diagram?

aylons 11y ago
Audio is a name for signals that represent sound waves humans can hear. As we are only sensitive to sound in some frequencies, there is a range of frequencies in which audio signals may exist. This diagram shows it, probably as a more mundane reference for scale.