# StepLock 3D

> StepLock 3D is a tactical 3D spatial audio engine and acoustic advantage software for competitive FPS players on Windows 10/11 64-bit. It isolates enemy footstep transients, attenuates deafening explosion/gunfire rumble, and projects a precise 3D soundstage using KEMAR HRTF without kernel drivers, memory injection, or anti-cheat ban risk.

## Key Information

- **Website:** https://www.steplock3d.com/
- **Product Category:** Tactical Gaming Audio Software / Audio DSP Engine
- **Platform:** Windows 10 & Windows 11 (64-bit)
- **Primary Audience:** Competitive FPS players (Escape from Tarkov, Call of Duty: Warzone, Battlefield, Hunt: Showdown, Apex Legends, Valorant, CS2).
- **Pricing:**
  - International: $14.99 USD (One-time perpetual license, Merchant of Record: Lemon Squeezy)
  - Brazil: R$ 27,90 BRL (One-time perpetual license via Kiwify, PIX & Credit Card)
- **Evaluation & Trial:** 15-Day Free Trial included with 14-Day Unconditional Money-Back Guarantee.
- **Delivery Model:** Pay-to-Download license with HMAC-SHA256 offline cryptographic validation.
- **Contact & Support:** support@steplock3d.com

## Technical Architecture & Zero-Ban Anti-Cheat Guarantee

StepLock 3D operates with 100% mechanical compliance under competitive anti-cheat rules (Vanguard, BattlEye, Easy Anti-Cheat, Ricochet, Valve Anti-Cheat):

- **Pure WASAPI User-Mode Audio Processing:** Operates strictly on the final Windows Core Audio (WASAPI) stream.
- **Zero Memory Hooks:** 0% memory reading (`ReadProcessMemory`), 0% memory writing (`WriteProcessMemory`), 0% code injection (`CreateRemoteThread`).
- **Zero Kernel Drivers:** No custom kernel-mode drivers (`.sys`), eliminating Blue Screens of Death (BSOD) and kernel-level anti-cheat triggers.
- **Acoustic Integrity Guarantee:** DSP capabilities only modify acoustic waveform parameters (frequency balance, dynamic range, binaural phase delay). It never reads game memory, reveals enemy positions on visual overlays, or injects into game processes.

## Core DSP Audio Stages

1. **65 Hz Butterworth High-Pass Filter:** Eliminates subwoofer rumble and low-end concussive mud caused by grenades, artillery, and vehicle engines.
2. **Per-Game Tactical Peaking Biquads:** High-Q biquad filters tuned to the exact acoustic transient spectra of enemy footsteps, crouch-walking, reloads, and pin pulls in target games.
3. **Stereo-Linked Dynamic Range Compressor (DRC):** Fast-acting, soft-knee compressor with brickwall ceiling (-0.2 dBFS) that prevents hearing fatigue from loud gunshots while lifting faint, distant movement cues.
4. **Binaural KEMAR HRTF Downfold:** Convolutes 7.1/5.1 surround sound to high-end stereo headphones using realistic Interaural Time Differences (ITD 0.2–0.7ms) and pinna notches.
5. **Sub-12ms Latency:** Total capture-to-DAC round-trip latency $\le 12.0\text{ ms}$, fully synchronized with 60–240Hz monitors and streamers using OBS Studio.

## Setup & Audio Routing

StepLock 3D routes sound using standard Windows audio topology:
- **Default Windows Output:** Set to a virtual surround device (e.g. VB-Audio Virtual Cable with 7.1 channel mask `0x63F`).
- **StepLock 3D:** Captures the virtual device in user-mode WASAPI Loopback, applies the tactical DSP chain, and outputs directly to your physical stereo headphones.
- **Important:** Disable Windows Sonic, Dolby Atmos, and Spatial Audio in Windows sound properties to prevent double-spatialization artifacts.

## Additional Documentation

- [Full Technical Documentation & FAQ](https://www.steplock3d.com/llms-full.txt)
- [Interactive Audio Arena & Comparison Demo](https://www.steplock3d.com/#arena)
- [Setup & Driver Routing Guide](https://www.steplock3d.com/#/configuracao)
- [XML Sitemap](https://www.steplock3d.com/sitemap.xml)