Is the "432Hz Myth" Actually Total Nonsense?

Personally, I think the whole “432Hz is the universe’s frequency” thing is a total nonsense.

Seconds are defined by humans, and Hz is defined by humans. So where on earth did this idea that “432Hz is the frequency of the universe” even come from?

What People Are Actually Arguing About

When people argue about 432Hz versus 440Hz, they aren’t even talking about a single standalone frequency. They are talking about defining the root tuning for the entire scale, where A4 equals either 440Hz or 432Hz.

If we are strictly talking about a single, isolated frequency, any frequency, whether it’s 432Hz or 440Hz, will create its own unique geometric pattern in water.

The real issue here is chords. True acoustic “chaos” or tension happens when you layer more than one note. It’s the disharmonic waveforms created when two or more frequencies collide because their periodic cycles don’t align.

Just Intonation vs Equal Temperament

If we are talking about A=432Hz versus A=440Hz under Just Intonation (where scales are calculated using simple integer ratios), strictly speaking, the integer ratios are calculated relative to the root note. So whether the root is 432Hz or 440Hz doesn’t change the purity of the resulting chord ratios.

Under Equal Temperament, everything is just logarithmically chopped into 12 equal parts within an octave. The chords are going to be pretty much equally dissonant either way.

Yet most of those comparison videos on the internet are still playing in Equal Temperament. If you think it sounds more “harmonious,” it’s highly likely just because the pitch is lower (by 31.76 cents) or the instrument string tension is looser, making it sound warmer.

So Where’s the “432 Advantage” Then?

If 432 really has any “factor advantage,” it only exists under Pythagorean tuning (3-limit).

Pythagorean tuning only allows factors of 2 and 3 to derive the entire scale. Since 432 = 2⁴ × 3³, when you keep stacking perfect fifths to derive notes, 432 guarantees integer results even at the deepest interval levels.

But in modern music and psychoacoustics:

1. We don’t necessarily use pure integers in digital audio. Floating-point numbers can handle everything.
2. The brain listens to ratios (A/B), not whether the root frequency can be evenly divided.

So 432 is genuinely a number friendly to ancient Greek integer aesthetics. There are no decimals to worry about. But in physical acoustics, chord resonance, or reducing cognitive load? It produces no meaningful difference in physiological response compared to 440.

What About the Schumann Resonance Argument?

Some even claim 432Hz is a multiple of the Schumann resonance, rounding it up to 8Hz for convenience.

But the actual Schumann resonance is 7.83Hz, which makes its multiple 430.65Hz, not 432Hz.

What Actually Matters

A single frequency definitely alters human perception and has different resonant frequencies depending on the medium.

But ratios, the harmonic series, and the overall structural framework are what actually matter.

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原文 — 432Hz 是不是偽命題？

我認為 432Hz 音樂是偽命題。

秒是人類定義的，Hz 也是人類定義的，何來 432Hz 是宇宙頻率一說？

當人們討論 432Hz 或 440Hz 時根本不是討論單一頻率，是定義整個音階的根音 A4=440 或 432 Hz。如果講單一頻率的話，無論是 432Hz 或 440Hz，都會讓水產生獨特的形狀。

真正的重點是和弦，真正會產生所謂混亂是在超過一個音疊加，兩個頻率因為週期不對齊產生的不和諧波形。

如果是討論 A=432 和 440 Hz 在純律（音階用簡單整數比計算）的規則下去定義音階，嚴格來說，純律的整數比是相對於根音計算的，所以根音是 432 還是 440，並不影響和弦比例本身的純淨度。

在平均律的規則下，都是在八度內等比切 12 份，和弦都是差不多的不和諧。而網路上的影片多數都還是在平均律的規則下做比較。你覺得和諧，更有可能是因為音頻更低（低了 31.76 cents）、或是樂器張力更低，聽起來更溫暖而已。

432 的優勢到底在哪？

如果說 432 真的有什麼「因數優勢」，那只存在於畢達哥拉斯調律法（五度相生律 / 3-limit）。

因為五度相生律只允許使用 2 和 3 的因數來產生所有音階。既然 432 全身上下只有 2 和 3（2⁴ × 3³），當你「只用 3 的倍數」去不斷推導五度音時，432 可以保證在最深的音程層級裡，依然吐出整數給你。

但在現代音樂和心理聲學中：

1. 我們不需要用純整數在做數位音訊了。
2. 大腦聽的是「比例 A/B」，不是「根音能不能被整除」。

所以，432 確實是一個對「古希臘整數美學」非常友善的數字，因為沒有小數點。但在物理聲學、和弦共振、或是減輕大腦認知負擔的層面上，它對人耳造成的生理反應，跟 440 差異並不大。

甚至有些說是舒曼波的倍數，四捨五入到 8Hz 來計算，但真正舒曼波是 7.83Hz，其倍數是 430.65，不是 432。

單一頻率確實在人耳接收上會造成不同的感知，或是對於不同媒介也不同共振頻率。但比例、泛音列和整體結構更為重要。