columba

mirror of https://github.com/torlando-tech/columba synced 2026-08-12 18:07:15 -04:00

History

torlando-tech b292532d20 fix: batch TX audio frames to eliminate progressive call degradation Voice calls degraded progressively from 60ms to 130ms per-frame arrival rate over 20 seconds, even on fast 1-hop local WiFi links. Root cause: each RNS.Packet.send() holds the Python GIL for encryption (AES-256-CBC + HMAC-SHA256) and transport dispatch, creating a feedback loop where both devices' TX/RX paths compete for GIL time. Batch 3 audio frames per RNS.Packet.send() call, reducing crypto overhead from ~16.7 calls/sec to ~5.6 calls/sec (67% reduction). The LXST wire format already supports frame lists ({0x01: [f1, f2, f3]}) and the receiver already handles both single frames and lists. Results: packet arrival rate stable at ~60ms/frame for 40+ seconds, zero silence callbacks, zero PLC, buffer steady at 6-9 frames. Also updates LXST-kt submodule with adaptive playout drain for ring buffer latency bounding during packet bursts and speaker toggles. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>	2026-02-16 14:45:06 -05:00
..
__init__.py	feat(11.6): enable bidirectional voice calls with crash fixes	2026-02-07 16:02:33 -05:00
call_manager.py	fix: batch TX audio frames to eliminate progressive call degradation	2026-02-16 14:45:06 -05:00

torlando-tech b292532d20 fix: batch TX audio frames to eliminate progressive call degradation

Voice calls degraded progressively from 60ms to 130ms per-frame arrival
rate over 20 seconds, even on fast 1-hop local WiFi links. Root cause:
each RNS.Packet.send() holds the Python GIL for encryption (AES-256-CBC
+ HMAC-SHA256) and transport dispatch, creating a feedback loop where
both devices' TX/RX paths compete for GIL time.

Batch 3 audio frames per RNS.Packet.send() call, reducing crypto
overhead from ~16.7 calls/sec to ~5.6 calls/sec (67% reduction).
The LXST wire format already supports frame lists ({0x01: [f1, f2, f3]})
and the receiver already handles both single frames and lists.

Results: packet arrival rate stable at ~60ms/frame for 40+ seconds,
zero silence callbacks, zero PLC, buffer steady at 6-9 frames.

Also updates LXST-kt submodule with adaptive playout drain for ring
buffer latency bounding during packet bursts and speaker toggles.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

2026-02-16 14:45:06 -05:00

__init__.py

feat(11.6): enable bidirectional voice calls with crash fixes

2026-02-07 16:02:33 -05:00

call_manager.py

fix: batch TX audio frames to eliminate progressive call degradation

2026-02-16 14:45:06 -05:00