What exactly does it mean, and how does it the affect audio in anyway??
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Audio can be separated into a bunch of different ranges. The human ear can pick up these different ranges differently.
In total, the human ear can hear approximately 20 Hz to 20 kHz. Some people have better hearing, some have worse. Furthermore, one of the other phenomena that determines hearing is how pitch and timbre work and interface with each other.
Musically speaking, “pitch” would be the note you hear, or how high or low something sounds. A blue whale would have a very low pitch; a bird chirp might be pretty high. Men generally have voices that are lower-pitched than women.
“Timbre” is like the tone of the thing you hear. The reason that you can differentiate between two different men saying the same thing at the same pitch, or the reason you can differentiate between different instruments playing the same note, is via timbre. Timbre is the “unheard” higher frequencies; the fact that I put “unheard” in quotes should indicate to you that they’re not *literally* unheard. For every pitch of a given frequency, other frequencies at integer multiples of that frequency (e.g. 1000 Hz vs 2000 Hz vs 3000 Hz vs 4000 Hz) will be realized as fleshing out or applying tone to that frequency.
When it comes to sending audio as data, it takes more to send *all* of the 20 to 20k range of human hearing. You know how telephone calls always sound a little muddy, but you can still mostly make out the other person? That’s because telephone networks only send the lower frequencies; you don’t *need* all of the upper frequencies to hear someone else, and it’s cheaper not to send them, so many of them won’t be sent.
The “presence range” is a specific range of audio, corresponding to 4kHz to 6kHz. Importantly, this is fairly well separated from the “hearable” range; frequencies at this range are quite high, and correspond *mostly* to timbre. This is why it’s called “presence”. Even though you mostly don’t *need* this range to receive the information needed, its existence helps whatever sound is available to sound more present.
Audio can be separated into a bunch of different ranges. The human ear can pick up these different ranges differently.
In total, the human ear can hear approximately 20 Hz to 20 kHz. Some people have better hearing, some have worse. Furthermore, one of the other phenomena that determines hearing is how pitch and timbre work and interface with each other.
Musically speaking, “pitch” would be the note you hear, or how high or low something sounds. A blue whale would have a very low pitch; a bird chirp might be pretty high. Men generally have voices that are lower-pitched than women.
“Timbre” is like the tone of the thing you hear. The reason that you can differentiate between two different men saying the same thing at the same pitch, or the reason you can differentiate between different instruments playing the same note, is via timbre. Timbre is the “unheard” higher frequencies; the fact that I put “unheard” in quotes should indicate to you that they’re not *literally* unheard. For every pitch of a given frequency, other frequencies at integer multiples of that frequency (e.g. 1000 Hz vs 2000 Hz vs 3000 Hz vs 4000 Hz) will be realized as fleshing out or applying tone to that frequency.
When it comes to sending audio as data, it takes more to send *all* of the 20 to 20k range of human hearing. You know how telephone calls always sound a little muddy, but you can still mostly make out the other person? That’s because telephone networks only send the lower frequencies; you don’t *need* all of the upper frequencies to hear someone else, and it’s cheaper not to send them, so many of them won’t be sent.
The “presence range” is a specific range of audio, corresponding to 4kHz to 6kHz. Importantly, this is fairly well separated from the “hearable” range; frequencies at this range are quite high, and correspond *mostly* to timbre. This is why it’s called “presence”. Even though you mostly don’t *need* this range to receive the information needed, its existence helps whatever sound is available to sound more present.
Audio can be separated into a bunch of different ranges. The human ear can pick up these different ranges differently.
In total, the human ear can hear approximately 20 Hz to 20 kHz. Some people have better hearing, some have worse. Furthermore, one of the other phenomena that determines hearing is how pitch and timbre work and interface with each other.
Musically speaking, “pitch” would be the note you hear, or how high or low something sounds. A blue whale would have a very low pitch; a bird chirp might be pretty high. Men generally have voices that are lower-pitched than women.
“Timbre” is like the tone of the thing you hear. The reason that you can differentiate between two different men saying the same thing at the same pitch, or the reason you can differentiate between different instruments playing the same note, is via timbre. Timbre is the “unheard” higher frequencies; the fact that I put “unheard” in quotes should indicate to you that they’re not *literally* unheard. For every pitch of a given frequency, other frequencies at integer multiples of that frequency (e.g. 1000 Hz vs 2000 Hz vs 3000 Hz vs 4000 Hz) will be realized as fleshing out or applying tone to that frequency.
When it comes to sending audio as data, it takes more to send *all* of the 20 to 20k range of human hearing. You know how telephone calls always sound a little muddy, but you can still mostly make out the other person? That’s because telephone networks only send the lower frequencies; you don’t *need* all of the upper frequencies to hear someone else, and it’s cheaper not to send them, so many of them won’t be sent.
The “presence range” is a specific range of audio, corresponding to 4kHz to 6kHz. Importantly, this is fairly well separated from the “hearable” range; frequencies at this range are quite high, and correspond *mostly* to timbre. This is why it’s called “presence”. Even though you mostly don’t *need* this range to receive the information needed, its existence helps whatever sound is available to sound more present.
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