smarttalk/2_way_Tochie: Development board: Waveshare ESP32-S3-AUDIO-Board SDK: ESP32 ADF Objectives: Auto answer SIP call Acoustic Echo Cancellation - shall have no echo using built-in louder speaker Noise reduction with far-field microphone array – pick up audio clearly at least 2 meters away @ e58fe7b72c814c3f632ea58176ade4ea1c7447c8 - Tochtech Git Service

Kathy Zhu a0dd5fc780 cleaned up and shortened echo at the beginning		vor 2 Wochen
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sip.c	a0dd5fc780 cleaned up and shortened echo at the beginning	vor 2 Wochen
sip.h	437882ff8e aec implementation	vor 1 Monat