I don’t see mentioned what Host setting you used or if you configured the Host and Target to proper IPv6, and set CPU and IRQ isolation. A base level configuration of RPi5 will not provide that much. If your serious about testing take some time to optimize your system. It will provide significant improvements over RAAT. Diretta assumes that:
• CPU topology matters
• IRQ placement matters
• Memory locality matters
Rather than hiding these realities, Diretta exposes tuning hooks so advanced users can align:
• Network interrupts
• Worker threads
• Feedback/control loops
When properly configured, Diretta tends to produce:
- Stronger image stability
- More intelligible low‑level detail
- More natural decay and ambience retrieval
- Reduced listening fatigue
Importantly, these traits do not come from coloration or DSP. They emerge from reduced time-domain error and lower control noise.
This also explains why Diretta is sensitive to:
- NVMe activity
- Network topology
- CPU isolation
- Buffering strategy