Table of Contents
Advertisement
Figure 4-15 Audio pipeline configuration, [ALT_ARCH=0] mode
Whenever ALT_ARCH=1, then the pipeline dynamically switches between AEC alone, or IC alone. In
this condition the AEC is able to make use of additional memory increasing the echo cancelling period,
and making it more resilient to echo in highly reverberant conditions.
Figure 4-16 Audio pipeline configuration, [ALT_ARCH=1] when reference signal is present
The dynamic switching uses statistics collected from the reference signal to establish if echo
cancelling is required.
XM-014232-PC
61
Advertisement
Table of Contents
