Risks We Eliminate

These high-risk elements from your specification are replaced with proven alternatives.

Eliminated

Coq Specialist Dependency

Original Risk: Formal verification requires scarce specialists ($200-400/hr) with 6-12 month unpredictable timelines.

Our Solution: Test-based determinism (N=10 runs) using standard engineering skills. Industry standard per CMU SEI, NeurIPS, ICML.

Eliminated

RNS Implementation Complexity

Original Risk: Residue Number System + Q31.32 is exotic math designed for FPGA, not software. Hard to debug, easy to introduce bugs.

Our Solution: Welford's algorithm—100 lines of Python, proven for 60+ years, used by PyTorch/NumPy/Pandas internally.

Eliminated

Ensemble Determinism

Original Risk: Three denoising models means 3× the determinism surface area to control and synchronize.

Our Solution: Single DeepFilterNet3 model with better quality metrics (PESQ 3.17 vs. ensemble 2.78-2.86) and 25× faster.

Risks We Manage

These risks remain but are well-understood with clear mitigations.

Risk Likelihood Impact Mitigation

PyTorch Determinism Edge Cases

Some GPU operations may not be deterministic

Low Medium CPU fallback for problematic operations; well-documented in PyTorch 2.9

DeepFilterNet Quality Insufficient

May not meet quality bar on specific audio

Low Medium Test on client audio Week 2; quality escalation path defined (WPE tuning → post-filter → secondary model)

DiskANN Scale Limits

Potential issues at billion scale

Low Medium PoC validates architecture; sharding strategy documented

TON Integration Friction

SDK issues or testnet instability

Low Medium Well-established SDK; testnet validation in first sprints of development

Client Rejects Test-Based Approach

Insists on Coq proofs despite evidence

Medium High Emphasize industry standard; offer Coq as post-MVP add-on if truly required

Risk Profile Comparison

Your specification vs. our counter-proposal.

Your Specification

HIGH RISK

  • Coq specialist required (scarce)
  • RNS implementation bugs likely
  • 3-model determinism hard
  • 6-component heavy-path complex

Our Proposal

MEDIUM RISK

  • Standard engineering skills
  • Welford's proven 60+ years
  • Single model, simpler pipeline
  • 3-component MVP scope