Headphone Acoustic & 360° Spatial Tuning Lab

Design target frequency curves, shape 5-band parametric filters, and simulate real-time binaural spatial audio drivers inspired by next-generation 360 headphone architectures.

Frequency Response vs Harman Target Curve

Logarithmic 20 Hz – 20,000 Hz magnitude response
Tuned Curve (dB)
Harman Reference
Driver Realtime FFT
360° Virtual Soundstage
Drag the speaker puck around listener
Azimuth: 45° | Dist: 1.2m
Binaural Acoustics & Spatial Telemetry
Interaural Time (ITD)
0.42 ms
Head Shadow (ILD)
5.8 dB
Bass Extension (F3)
26 Hz
Parametric Matrix Calibration
Band Center Filter Type Bandwidth (Q) Current Gain

How 360 Headphone Tuning Works

Acoustic engineers compensate for the ear canal’s natural 3 kHz resonance (concha gain) while sculpting sub-bass shelf responses to provide tactile punch without muddying midrange vocal presence.

Binaural Cues: ITD & ILD

360-degree spatial imaging relies on Interaural Time Differences (ITD, time delay between left and right ear up to ~0.7 ms) and Interaural Level Differences (ILD, high-frequency attenuation caused by head shadowing).

Harman Target Curve Benchmark

The Harman headphone curve represents blind-tested human preference: an elevated bass response below 200 Hz to simulate room gain, balanced midrange, and an intentional presence peak at 3 kHz.

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