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Energy distribution across the audible spectrum. Green = balanced, amber = slightly off, red = significantly off.
Spectral Centroid
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Spectral Roll-off
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Spectral Flatness
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The spectral centroid is the "center of mass" of your frequency spectrum — it describes where the average energy of your track sits. A lower centroid means a darker, bassier sound. A higher centroid means a brighter, more treble-heavy sound. Most well-balanced mixes land between 1.5 kHz and 3.5 kHz.
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Spectral analysis breaks your audio down into its frequency components — the individual pitches from the lowest sub bass to the highest airy treble. By measuring how much energy sits in each frequency band, you can see whether your mix is balanced, muddy, harsh, or thin. A spectral analyzer uses a Fourier transform (FFT) to convert your audio from the time domain into the frequency domain, then averages the energy across the whole track to give you a snapshot of your tonal balance.
A great mix isn't just about loudness — it's about how energy is distributed across the frequency spectrum. Too much low end makes a mix muddy and boomy. Too much midrange sounds boxy or honky. Too much high end sounds harsh and fatiguing. The best mixes have a smooth, intentional energy curve that translates across speakers, headphones, and cars. Spectral analysis is the fastest way to see where your mix sits and what needs fixing before you master.
Sub Bass — 20 to 60 Hz
The deepest frequencies you feel more than hear. Too much makes your mix loose and overpowering on subwoofers. Too little and your track loses weight and impact.
Bass — 60 to 250 Hz
The fundamental body of bass instruments and kick drums. Excess here sounds boomy; a deficiency leaves the mix thin and weak.
Low Mids — 250 to 500 Hz
Warmth and fullness live here, but it's also where mud builds up. Many mixes have too much energy in this range, causing a cluttered, indistinct sound.
Mids — 500 Hz to 2 kHz
The core of vocals, guitars, and snare presence. This range carries the character and intelligibility of your mix. Imbalance here makes instruments fight each other.
High Mids — 2 to 6 kHz
Presence, attack, and definition. The human ear is most sensitive around 3 kHz. Too much sounds harsh and fatiguing; too little makes a mix dull and distant.
Highs — 6 to 20 kHz
Air, sparkle, and sense of space. A small amount of energy here adds openness and clarity. Too much reveals hiss and sounds brittle.
Look at the 6 frequency bars first. A balanced mix shows a smooth, gradually descending curve from low to high — not a flat line, but an intentional shape. Sudden dips or peaks in a single band are red flags.
The spectral centroid tells you the overall brightness of your mix. Most commercial tracks sit between 1.5 kHz and 3.5 kHz. Below 1.5 kHz suggests a dark, muddy mix. Above 3.5 kHz suggests a bright, harsh mix.
The low/mid/high distribution gives you a quick three-way snapshot. A typical well-balanced mix is roughly 30–40% low, 40–50% mid, and 15–25% high — though this varies by genre. Electronic and hip-hop mixes carry more low end; acoustic and orchestral mixes carry more mid and high energy.
This tool shows you where your energy sits — it doesn't fix it. Use the results to identify problem bands, then reach for an EQ to cut or boost as needed. For a complete picture including specific fix recommendations with severity grades, dynamics analysis, stereo width, and loudness compliance, try the full MixDiagnose analysis.