ANC Headphone Acoustic & Latency Profiler

1. Benchmark Device Profile

Comparing upcoming Samsung Over-Ear DSP architecture against Apple AirPods Max benchmark.

2. Acoustic Environment Noise

Ambient SPL Level 78 dB

3. Hybrid DSP Filter Tuning

DSP Anti-Noise Center Freq 480 Hz

Feedforward (FF) Gain 28.5 dB

Feedback (FB) Low-End Gain 22.0 dB

Passive Earcup Seal Isolation 92 %

4. Codec & Spatial Pipeline

Bluetooth Transmission Codec

Spatial IMU Sample Rate 1000 Hz

Broadband Rumble Attenuation

32.4 dB

< 500 Hz Jet/Engine Band

End-to-End Latency

42 ms

vs 68ms on std AAC

Motion-to-Sound Spatial

12 ms

IMU + DSP 6-DoF Vector

Harman 2018 Curve Delta

±1.4 dB

Over-Ear Target Adherence

Acoustic Frequency Response & ANC Attenuation Spectrum 20 Hz – 20 kHz Logarithmic

Cursor: 480 Hz | -32.4 dB

Ambient Environmental Spectrum

Active + Passive Total Attenuation

Passive Earcup Isolation Alone

Harman 2018 Target Baseline

Hover/Drag over spectrum to inspect discrete Hz

Bluetooth Transmission & 3D Spatial Audio Latency Pipeline

Audio & Spatial Tracking Packet Breakdown 42 ms Total

Codec 22ms

DSP 8ms

Spatial 12ms

Bluetooth Codec Buffer

22 ms (SSC 24/96)

DAC & ANC Processing

8.2 ms (Dual Core)

IMU Head-Track Vector

12.0 ms (1000 Hz)

DSP Architectural Observation: SSC (Samsung Seamless Codec) dynamic 24-bit/96kHz packet packing reduces transmitter buffer overhead to 22ms, outperforming traditional AAC (48ms) and unoptimized SBC (120ms). In airplane low-frequency rumbling (<500Hz), active dual-mic feedforward biquad inverted phase achieves 32.4 dB peak cancellation.

Deterministic Acoustic Dataset & Verification Evidence

Generated dataset contains full 100-point logarithmic transfer curves (20Hz to 20kHz), parametric biquad coefficients, phase cancellation vectors, and Bluetooth packet latency distributions.

● Canonical Dataset Ready (100 log frequency nodes computed)