DREAMVFIA AUDIO LABS // INTERACTIVE ENGINE

MIDI Note to Frequency (Hz) & Filter Cutoff Engine

Deterministic calculation of exact musical pitch frequencies, acoustic wavelengths in air, and real-time interactive synthesizer filter cutoff curves for precision mixing and sound design.

01 // PITCH TO FREQUENCY (HZ) EQUAL TEMPERAMENT

SELECT NOTE:

A4 TUNING: MIDI #69

FREQUENCY

440.00Hz

PERIOD (CYCLE)

2.27ms

WAVELENGTH

77.95cm

Acoustic Physics Rule: At 20°C in air, speed of sound is 343 m/s. Sub-bass waves (e.g. C1 at 32.7 Hz) are over 10.5 meters long, explaining room modal standing waves!

02 // SPECTRUM TARGETS QUICK JUMP

Click any frequency zone to jump the synthesizer filter cutoff point:

Studio Guideline: High-pass cutting below 30 Hz clears headroom for master limiters without losing audible energy. Low-pass shaping on synthesizers removes digital aliasing harshness above 14 kHz.

03 // SYNTHESIZER FILTER CUTOFF & RESONANCE CURVE CUTOFF: 1000 HZ

TYPE: SLOPE:

CUTOFF (HZ): RES (Q): Q 1.0

RNOISE ECOSYSTEM // AI PROMPT MATRIX

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