Bluetooth sync suggestions

[Set the Tony]

Hi All,
Executive Summary: Dynamic Latency-Compensated Bluetooth Audio Hub
The Core Concept: A hardware-and-software solution designed to synchronize multiple legacy, heterogeneous Bluetooth speakers (different brands, versions, and sizes) into a unified, immersive spatial audio ecosystem.
The Technical Challenge: Bluetooth latency asymmetry. Different hardware chipsets process digital audio signals at varying speeds, creating devastating acoustic phase cancellation and echo effects.
The Solution (BPM & Grid Sync Integration): * Master Clock & Quantization Grid: Utilizing a central processing hub that treats playback time as a rigid temporal grid, analogous to a DJ mixer's Master Clock.
Acoustic Calibration Loop: An automated calibration routine where each speaker emits an acoustic impulse response (click), captured by a smartphone microphone to map precise individual latencies.
Dynamic Multi-Channel Delay Compensation: The hub dynamically inserts calculated buffer delays to faster speakers, forcing all audio waves to exit the hardware at the exact same millisecond boundary.
Real-Time Nudge Controls: Providing manual phase-alignment interfaces for micro-adjustments, ensuring a pristine, tight, and cohesive soundstage

[BertKoor]

I doubt this describes a real world problem.

But why resort to expensive hardware and complex software solutions?
You can avoid this mess by simply using analog wired connections.
No latency, nothing to compensate, just the speed of sound to worry about