Decided on Parakeet ONNX Runtime. Works pretty great. Realtime voice chat possible now. UX lacking.

bot/bot.py

@@ -63,6 +63,12 @@ logging.basicConfig(
     force=True  # Override previous configs
 )
 
+# Reduce noise from discord voice receiving library
+# CryptoErrors are routine packet decode failures (joins/leaves/key negotiation)
+# RTCP packets are control packets sent every ~1s
+# Both are harmless and just clutter logs
+logging.getLogger('discord.ext.voice_recv.reader').setLevel(logging.CRITICAL)  # Only show critical errors
+
 @globals.client.event
 async def on_ready():
     logger.info(f'🎤 MikuBot connected as {globals.client.user}')