1 Introduction

At first, I thought it was just my unstable condition, but the more I thought about it, the more off it felt—how could it be that problems almost always occur only when "singing along with the original"?Out of curiosity, I began to deconstruct the source of this "offness" bit by bit, only to find that: many so-called "high notes" and "low notes" are actually not issues of pitch itself, but rather the body reacting incorrectly after the ears are misled. It could even be said that "unprofessional hearing" leads to a certain vocal "illusion" or "hallucination."Where do these illusions or hallucinations come from? They might come from

post-processing, or they might come from our own imagination and expectations of the voice. When the ears "think" they hear a certain height or depth, the body tries to mimic it, and the natural result is that it is easy to sing off-pitch, tight, or uncomfortably.

to sort out the “high-note illusion” and "low-note illusion" that beginners are most likely to encounter from a theoretical perspective, so you know exactly what is leading you astray.

People learning to sing often share the same confusion: the original vocals sound incredibly high, but when they turn off the vocals and sing only with the accompaniment, it doesn't feel that effortful, and they might even wonder if they are singing too low. In fact, this illusion does not arise out of thin air; it is because the human ear and brain do not just look at pitch itself when judging “high or low,” but are influenced by multiple cues such as timbre, brightness, and placement information. In other words, the “highness we hear” is often a combined result of timbre and perception, rather than pure frequency.

First, the brightness of the voice strongly affects our perception of high and low. The more high-frequency components in a voice, the "brighter" and "more forward" it sounds. This brightness can be misread as "higher," even if the actual frequency has not risen significantly. Furthermore, the human ear is particularly sensitive to specific frequency bands (roughly concentrated around a few thousand hertz); once that range is enhanced, the voice will sound sharper and more piercing, making it easier for people to feel it is "unbelievably high." Therefore, as long as the timbre shifts slightly toward high frequencies, the auditory system will automatically amplify the impression of "highness."Having understood that hearing itself creates the "high-note illusion," let's look at the other half of the reason:、some singers' vocal styles naturally make your ears think it is "very high," but in reality, the pitch is not as exaggerated as you imagine、—they are not actually "singing very high," but rather、making the voice brighter, more forward, thinner, and more upward-moving, making you think it is high.

JJ Lin: A classic example of forward-pushed thin voice, making you mistakenly believe it is high notes all the wayJJ's “sense of high notes” comes from two keywords:

2 How singers' vocal styles further create the "high-note illusion"

3 Post-production of songs further amplifies the high-note illusion

forward-pushed + thin voice

. His high notes are often placed very far forward, close to the upper gums or the mask area, while the vocal cord closure is relatively light and thin, giving the voice extremely strong penetration. This structure itself makes you feel the voice is “floating up.” Consequently, you think he is singing E5 or F5, but when you look at the sheet music:

most of them are around C5, it's just that the auditory perception is exceptionally bright.

Terry Lin: Creating a sense of height through breath control and an extremely clean “light-bright voice”

Terry Lin's voice is naturally bright and thin, and controlled very stably. When he uses more forward resonance, higher placement, and lighter, thinner vocal cord closure, you almost get the illusion that “even the air is rising.”

4 Summary“

He doesn't strain, nor does he shout; he just leans forward gently, and the timbre instantly brightens to the ceiling. So you think: Oh no, this is definitely a sky-high note. But the pitch is actually often within a range that an ordinary male singer can also reach.Jeff Chang: The clear, bright, light voice register naturally carries a “rising sensation”—They aren't actually “singing very high,” but rathermaking their voice brighter, more forward, thinner, and more upward-trending, making you think it's high.

The following singers are the most typical “masters of high-note illusions.”

JJ Lin: A classic example of forward-placed, thin vocals that mislead you into thinking it's high notes all the way through

JJ's “sense of high pitch” comes from two keywords:Forward placement + Thin toneHis high notes are often placed very far forward, close to the upper gums or the mask area, while his vocal cord closure is relatively light and thin, giving his voice incredible penetration. This structure itself makes you feel like the sound is “drifting upward.” As a result, you think he is singing E5 or F5, but when you look at the sheet music:Most of them are around C5, it's just that they sound exceptionally bright.

In the chorus, he naturally increases high-frequency overtones and adopts a “sharper” mouth shape, instantly pushing the perceived pitch way up.

Terry Lin: Creating a sense of height through breath control and an extremely clean, “light and bright” tone

Terry Lin's voice is naturally bright and slender, and he controls it with incredible stability. When he uses a more forward resonance, a higher placement, and lighter, thinner vocal cord closure, it almost creates the illusion that “even the air is rising.”

He doesn't strain, and he doesn't shout; he just gently leans the sound forward, and his tone instantly brightens to the ceiling. So you think: "Oh my, this is definitely a sky-high note." But in reality, the pitch is often within a range that any ordinary male singer can reach.

Jeff Chang: A clear, bright, light register that naturally brings a “sense of rising”

Jeff Chang is a classic example of a singer with a “clear, bright, forward resonance.” His articulation is naturally forward-placed, and combined with a slender breath line and clean tone, the moment he hits the chorus, it makes you feel “so high, so light, and so airy.”

But in most cases, his pitch is much lower than it sounds. Because he never makes his voice sound like a heavy chest voice, but instead uses a delicate brightness in the front cavity to push up the perceived pitch.

Listening to his songs, you'll just constantly feel they are “very high,” but the actual pitch is actually very friendly—you're just fooled by the timbre.

Chang Yu-sheng: High-energy bright voice makes the timbre “impact your hearing”

Chang Yu-sheng is the kind of singer with extremely strong high-frequency energy; his timbre is inherently bright, and with his resonance concentrated in a higher position, his voice sounds as if it is floating upward at any moment.

In passages with stronger emotions, this effect is further amplified. His oral resonance becomes brighter, overtones stronger, and the voice pushes slightly forward, giving the entire passage a texture akin to “shining.” When these factors stack up, your ears naturally judge the pitch to be higher than it really is.

So you feel like he is crazily hitting high notes, but when you try to sing it yourself, you will find: what really “scared” you was not the pitch, but the auditory impact created by the mixing and timbre. The actual pitch is not nearly as exaggerated as you thought—of course, even if it's not *that* exaggerated, it's still pretty exaggerated; anyway, I really can't hit those highest lines in the chorus of "The Ocean" with my chest voice~~.

Why do these singers make you misjudge?

The reason why they are particularly prone to creating the “high note illusion” is very clear: bright voice, front-cavity dominance, thin-voice technique, and high-frequency enhancement. When these traits stack up, your brain automatically concludes—“this must be a high note.”

But in fact, they create this impression not because they sing exceptionally high, but because the voice is placed further forward, the timbre is sharper and brighter, the resonance is concentrated in a higher position, the overtone structure is stronger, and combined with some emotional drive or articulation style, it makes the entire line sound like it is going up.

These techniques indeed create a perceived “rising sensation,” but the pitch itself can be not exaggerated at all. This is also why many beginners find it harder and harder to sing along with these singers. It's not that you can't hit the notes, but that you are misled by their timbre, thinking you also need to “push upward.” Once you exert force this way, your entire physical structure goes off track, and the more you sing, the more awkward it feels.

3 The Illusion of Low Notes

In addition to the singer's own timbre, resonance, and singing style causing listeners to misjudge pitch, modern pop music production is also quietly “adding drama.” The “high notes” we hear in our headphones have often undergone a series of processing, making them brighter, more stable, more forward, louder, and more piercing than the original sound—naturally making people mistake them for being “extremely high.”

The most typical treatment in the mixing stage is to deliberately push the chorus vocals forward. To make the chorus more explosive, mixing engineers usually boost the high frequencies, brighten the timbre, and compress the dynamics, making high notes that might originally be shaky, airy, or light sound unrealistically stable. Once the voice is supported like this, it creates an illusion of being “higher, stronger, and more powerful.” You think the original singer easily sang to the heavens, but in reality, it is very likely just the brightness and stability of the mix making it sound “exceptionally high.”

More importantly, compression: a real human voice at high notes will slightly tremble, swell, sound airy, or occasionally “poke out,” which is all normal. But a compressor flattens all these details, leaving only a “bright and stable” version. What you hear is a high note “held in place” by a machine, not the singer's actual ability. Naturally, when you sing along, you will find it harder because you are facing reality, not “edited reality.”

Reverb and delay also add fuel to the high notes. They stretch, suspend, and diffuse the high notes in space, making them appear “wider” and “more forward” than they actually are. Consequently, in terms of perception, the high notes seem to be lifted up a level, and what you feel in your headphones will be “sharper, brighter, and more exciting” than the real high notes live. But none of this is the pitch itself; it is an illusion created by the sense of space.

Finally, mastering usually reinforces all high-frequency information once again. Mastering engineers will boost the brightness of the entire frequency band, enhancing the “presence” of the sound, making the vocals sound clearer, sharper, and more penetrating. To the ears, this high-frequency enhancement is almost directly misheard as “higher pitch,” which is why the “cleaner and brighter” a song is, the more “scary” the high notes sound.

In addition, the high-note passages in many songs are actually not single-track vocals, but multi-track layering: a main vocal track, several falsetto tracks, and several bright, high-position timbre tracks stacked together. Layering makes the high notes thicker, brighter, and “unbelievably stable,” so of course you would mistakenly believe “the original singer's ability is god-like.” But if you turn off all the layered tracks, many high notes actually sound much more ordinary.

In summary, many passages that sound ‘ridiculously high" are often not the singer's actual limit, but rather an auditory illusion shaped by post-production. This also explains why many music lovers prefer listening to live performances—because the live stage strips away most of the embellishments, making the true pitch and texture of the voice easier to hear.

Of course, with technological advancements, today's live performances are not entirely “unprocessed” either; backing tracks, pre-recordings, and even real-time pitch correction are no longer novelties. However, these technologies are used more forstabilityrather thanbeautification, and the extent of processing is far less than in a recording studio.

In other words, the studio can make high notes look like they are riding a rocket, whereas live performances, even with assistance, only provide the singer with a seatbelt. Because of this, live performances remain a reference closer to the singer's true vocal state.

1 Why is the low note considered an illusion?

High notes in popular music often create an illusion, sounding much higher than their actual pitch. This phenomenon is no accident, but the result of multiple factors working together: the brightness of the voice itself, forward resonance, overtone structure, diction, and psychological perception make the ear “think” the pitch is very high; meanwhile, modern music production techniques—compression, reverb, delay, and multi-track layering—further reinforce this auditory illusion, making choruses or climactic sections sound more impactful and piercing.

At the same time, singers themselves can also create a sense of high pitch through technique. Proper compression, adjustment of resonance placement, use of breathy voice, transitions between light and heavy mechanisms, and emotional expression can all psychologically “elevate” a high note, even if the actual pitch is not particularly high. This means that the so-called sense of high pitch is often a comprehensive result of technique, vocal timbre, and psychological experience, rather than relying solely on the natural stretching of the vocal cords.

Understanding this is particularly important for individual singers. It reminds us that high notes are not better just because they are higher, nor do we need to be intimidated by the audible “high-note pressure.” By mastering the coordination of breath, resonance, timbre, and emotion, one can fully create a tense and penetrating sense of high pitch even within their own comfortable vocal range. In other words, much of the time, the high notes we hear are just an illusion, and true singing ability lies in the overall control of the body and voice.

2 Low notes are not about "singing down," but rather a vocal space that is "created"

3 Real Low Notes & Fake Low Notes

If the illusion of high notes stems from “too bright a timbre and too much post-processing,” then the illusion of low notes is even more subtle—it primarily originates fromthe physiological limitations of the human auditory system itselfThe reason we perceive certain sounds as “exceptionally low” is not entirely because the pitch is actually very low, but because the ears, brain, and body produce various “subjective compensation” effects, leading us to mistakenly believe we are hearing a deep bass.

First, the human ear's sensitivity to different frequencies is uneven. Mid-to-high frequencies (2kHz to 5kHz) are the easiest to distinguish, whereas for low frequencies below 200Hz, the human ear's resolution drops sharply. In other words, when a sound enters the low-frequency range, we cannot perceive the pitch as clearly as we do with high notes; instead, we rely on a vague, overall “impression of vibration,” which is the first step in creating the low-frequency illusion.

Second, low frequencies have longer wavelengths, which generate a physical sensation of vibration. Micro-vibrations in the chest, changes in eardrum pressure, and even air vibrations are translated by the brain into a “lower” sense of pitch. Therefore, many vocals that sound like subwoofers are not actually at an exceptionally low pitch; rather, they are amplified by factors such as chest resonance, dark timbre, and vocal tract elongation.

Finally, low-frequency sounds have weak directionality and easily diffuse in space, creating a “sense of envelopment.” This enveloping feeling is interpreted by the brain as the sound being thicker, heavier, and lower. When you hear a shocking bass in a recording studio, but it sounds flat when played on a mobile phone, this is precisely the illusion caused by spatial diffusion and device capture capabilities.

So, the “lowness” perceived by our ears is often a composite illusion: vague low-frequency perception, physical vibration misjudgment, spatial diffusion illusion, and the superposition of resonance and device amplification work together to make people believe they are hearing an amazing bass, though the actual pitch may not necessarily be very low.

4 Summary

Having understood the perceptual illusion of low notes, the next question is: how do we truly “create” low notes through the body and resonance?

In fact, most people's vocal cords do not have as exaggerated an absolute low-pitch capability as imagined. Low notes sounding deep and powerful does not rely on dropping the pitch, but rather onthe construction of vocal tract structure and spatial senseThere is a popular saying in vocal circles: low notes are not sung down, but sighed down. True low notes are a vocal method of “sighing backward, deeper, and into the space” rather than forcing them down.

When singing low notes, the key to physical movement lies in adjusting the vocal tract: relaxing the pharynx backward, slightly lowering the soft palate, elongating and widening the vocal tract as a whole, and extending the resonance position deep into the body. When the passage is adjusted to be “darker,” “wider,” and “deeper,” the voice naturally sounds low and deep. This is also a typical “auditory illusion”:the low notes you hear are a sense of depth brought by structure and timbre, rather than pure pitch.

Many people feel they “cannot sing low notes,” but in fact, in most cases, it isthe structure is not properly built. A bright voice, lack of chest resonance, or pharyngeal tension will all cause the low notes to float at the throat. Conversely, even if a female singer's vocal cord conditions are limited, as long as the dark structure is in place, she can still sing convincing low notes.

The core of low note training is not practicing the “lowest pitch”, but rather establishing adark channel: stable chest vibration, an open vocal tract, slow and steady breath, and a darker timbre, forming a resonance space inside the body. In other words, you are not “singing” a low note, but rathercreating a space for the low notes to exist. Once the structure is built, the low notes will naturally sink down, and pitch instead becomes a secondary factor.

. Professional vocalists listening to an original recording can often immediately judge exactly how high that high note is, or whether that low note really sinks that low; but for self-taught amateurs like me, whose ears have not undergone systematic training, it is very easy to be misled by various external factors.

Generally speaking, low notes will present themselves in roughly two different ways—True Bass和False BassThey are not a matter of good or bad, but rather two completely different vocal approaches, each suited to different scenarios.

True Bass: “Natural depth” brought by the physical low point of the vocal cords (bel canto system, opera stage)

The so-called True Bass relies on the low-frequency vibration of the vocal cords themselves. The characteristics of this type of bass are usually: full tone, high density; natural penetration; and real, solid low-frequency energy.

It is highly related to innate conditions such as vocal cord thickness, length, glottal shape, and vocal tract structure. Therefore, a true “bass” in the literal sense is naturally a minority in the general population.

Opera singers need to project their voices through the entire theater without a microphone, even overpowering a full symphony orchestra, and this “natural low-frequency energy” is precisely what True Bass achieves.

Because of this, True Bass belongs to a more professional and talent-oriented path; it is not a physical low point that most people can reach through practice. However, this does not affect its existence as a “vocal talent trait.”

False Bass: A “steady vocal line” crafted by structure and tone color (the mainstream of popular music)

Compared to True Bass, False Bass does not force the pitch down to its physical limit, but rather throughstructure and tone colorto create a texture that “sounds very low.” Common methods include: strengthening chest resonance, opening the pharyngeal cavity and vocal tract to let the sound drop, reducing brightness to create a dark tone, and slowing down the airflow to make the sound steadier.

The actual pitch of this kind of bass is not necessarily very low, but it still sounds thick, stable, and well-grounded. Precisely because the technical threshold is relatively friendly, it is very common in pop music, folk music, and voice acting—most of the “steady bass” that people hear actually belongs to this structured bass.

Why is False Bass so effective? Because in the low-frequency range of the human ear,the ability to distinguish pitch is inherently insensitiveEspecially in ranges close to Low C, even if it is off by a semitone, most people can hardly tell. What they hear more easily is the sound'sthickness, sense of space, steadiness, and overtone layers, rather than precise pitch values.

This also means that in actual bass practice, as long as yourstructure is set up properly, resonance settles down, and breath remains stable, even if your physical low point is not very low, the audience will still naturally feel: “This bass is very steady” and “has a solid foundation.” In other words—The credibility of the bass comes from structure, not the precision of the pitch.

The vast majority of pop singers and bass-style creators (including some familiar male vocalists) mainly use this “structured bass.” This is not because they lack True Bass capability, but rather becausepop music does not require the physical low-frequency energy of opera, but instead requires a soft, controllable, and speech-like bass color.

In modern pop music, the vast majority of the “pleasant bass” we hear actually belongs to this “structured bass.” For example:

• Wang Xi“s bass is not the extreme low-frequency ”True Bass" of an operatic bass, but rather a steady bass shaped by structure, space, and dark tone color, making it both soft and deep, perfectly suited for pop and crossover expressions.
• Zhao Peng“s signature ”vocal bass“ is also a spatial bass formed by chest resonance, dark tone color, and breath control, keeping the bass deep yet fluid, making it a classic high-quality example of ”False Bass."
• Mao Buyiis not a bass voice type, but in some songs, he creates a “gentle bass” auditory effect by reducing brightness, decreasing resonance concentration, and controlling airflow speed, which is also a manifestation of structured bass.

The reason these singers' bass sounds so good is not because they force their pitch down, but because they know very well:How to use body space and tone design to create a deep vocal atmosphere.

Therefore:False Bass is not “fake bass,” but rather the most commonly used, practical, and easily pleasant bass approach in pop music.

Ordinary people have absolutely no need to obsess over “whether they are a bass” (I once felt sad for a long time because I wasn't a True Bass, thinking that basses are cooler, while tenors seem to be everywhere and feel completely cheap~), let alone pursue pushing the pitch to its limit. What truly needs to be trained is:Whether you can build a space that makes the bass sound steady, natural, and pleasant.

Once the structure is set up, you will find that the charm of False Bass is not inferior to True Bass at all; in fact, in most music genres, it is a more ideal bass choice.

When singing along with the original vocals, the high notes or low notes always feel awkward and effortful; once the original vocals are turned off and only the accompaniment remains, they can be sung easily.

Many people think that “singing bass” is a competition of vocal cord capability, as if only those with good innate conditions can sing deep and steady. But in fact, the reason bass gives the illusion of being “very low” is often not because of the pitch itself, but because of the auditory effect created by the path, space, and structure of the sound in the body.

When the vocal tract space is compressed, the pharyngeal cavity is not opened, and the breath speed is too fast, the sound will float at the throat. Even if the pitch is not actually high, it will sound thin, shallow, and not deep enough. Conversely, as long as chest resonance is established, the pharyngeal passage is opened, and the brightness of the vocal tract is appropriately reduced, the bass will naturally “sit down” and present a deep, solid texture. This depth is brought by structure, not by forcing it down.

Once you understand this, you will realize: bass is never “forced out,” but rather “yielded by space.” The real key is not whether you can sing to a certain absolute low point, but whether you have built a “home” for the sound to settle down stably. As long as the structure is right, the bass will fall on its own; if the structure is wrong, even the strongest voice cannot be relied upon.

What this chapter wants to uncover is precisely the illusion of bass:The bass you think you cannot achieve is often not a matter of ability, but a matter of space. When the body's passages are reopened, you will be surprised to find that the bass is actually closer and more natural than you imagined.

As a side note, when we usually talk about “bass, baritone, tenor” (or soprano, mezzo-soprano, alto for female voices), strictly speaking, we should first clarify:whether we are speaking according to the voice part classification of the bel canto system, or the vocal range habits of pop musicBecause—

• the “bass, baritone, and tenor” in the bel canto system are professional voice part concepts, classified according to comprehensive standards such as vocal cord structure, resonance, vocal range distribution, sustainability, and stage projection capability. In other words, in bel canto, “bass” is not about “how low one can sing,” but a systematic voice part identity.
• The “low, middle, and high notes” in the pop system lean more toward auditory perception and vocal range habits.Much of the time, it is just a rough classification based on whether a person “sounds relatively low/high when singing” and “where the upper limit of their high notes is,” describing style rather than strict voice classification.

Therefore, this situation occurs:A person who is a baritone in the classical system might be regarded as a “singer with strong high notes who can hit high notes” in pop music; while a person who is a bass in the classical system may not necessarily sing “very low” in pop music”, these are all misalignments of understanding caused by system differences.

4 Afterword

Writing up to here, regarding the illusion of high notes and the hallucination of low notes, I actually only want to emphasize one thing—The “high and low” we hear is not pure pitch, but rather an “auditory result” shaped by timbre, resonance, and psychological expectations.”。

In other words, the “high notes you can't sing” that you have always felt might just be because the original singer's timbre was produced to be brighter, more forward, and harsher, giving you a psychological illusion of “high”; and the “low notes you think you can never reach” might also just be because your ears are insensitive to low frequencies, making you ignore the “sinking sensation” created by structure and space in your body.

Why clarify these? Because—What traps the vast majority of ordinary people when learning singing is never their throat, but rather illusions.

When you understand the principles behind these phenomena, you will suddenly find: it turns out many “very high” high notes are actually not that high; it turns out low notes are not “pressed down”, but rather “sunk down”; it turns out the difficulty in singing is not pitch, but rather “auditory misleading + incorrect physical exertion”.

Once these cognitions are correctly established, singing immediately becomes different: it is not about “challenging extreme notes”, but rather about feeling the real position and structure of the sound in your body; it is not about blindly exerting force, but rather about liberating yourself from incorrect feelings.

Therefore, the illusion of high notes and the hallucination of low notes discussed in this article are not to tell you “how to sing higher or lower”, but rather to make you understand—What you think is “difficult” is often not difficult at all, but rather you are just deceived by your auditory perception.

When the illusion dissipates, your true voice will emerge.

“This matter of ”the illusion of high notes / the hallucination of low notes" is actually one of the most critical cognitions when ordinary people learn singing. But having watched so many online tutorials and vocal teachers' science videos, almost none of them have seriously talked about this. I guess the reason is very simple:For professionals, this is not a problem at all; they don't even realize this is the biggest obstacle for ordinary people.。

Professional training will completely reshape a person's auditory perception through long-term solfège and ear training: they can naturally distinguish timbre and pitch, judge intonation by body, and will not be misled by timbre phenomena such as bright sound, forward placement, and thin sound. In their view, “this part is actually not that high”, “here is just a change in brightness”, “this is changing resonance, not raising the key”, are all very ordinary judgments. But the auditory world of ordinary people is completely different from theirs, which they often do not realize.

For ordinary people, auditory instinct is often like this: brighter = high; darker = low; mixed voice raised = thinking the singer is singing to the sky; chorus rushing = body tensing up first. Therefore, it is not that you cannot sing it, but ratheryour ears scare you firstIf the reference given by auditory perception is wrong from the very beginning, the body will naturally go astray.

But in the entire pop vocal teaching circle, most people prefer to talk about “techniques”—how to sing high notes, how to sing mixed voice, how to explode, how to sing like someone—these contents are easy to attract people and easier to “see results”. In contrast, the most fundamental issues such as auditory cognition, overtone structure, resonance illusion, and psychological misleading—which are abstract, difficult to explain, and cannot make you sound good in three minutes—are naturally ignored.

However, in the final analysis, what ordinary people really lack in singing is never the technique itself, but ratherthe most fundamental “auditory cognition”However, for these key ”cognitions”, professionals do not talk about them because they do not need to; ordinary people do not understand them because no one talks about them.

And the purpose of this article is to fill in this long-ignored part.