Hi
We are integrated the AER library with the following setup:
sample rate: 8kHz (all I/O)
version: 17.0.0.0
processor: c6748
We have followed the example code to create a similar simulation environment and used the example parameter set.
The AER is producing clean audio output in the send path and providing echo cancellation except when the FDNLP is enabled.
The send path output with FDNLP processing appears to consist of broken-up near end speech frames. The output audio file contains 40 samples of near end speech, followed by 40 samples of low level noise (-60dbFS, noise from the comfort noise generator?), repeating every 80 samples. The output is ok when TDNLP is used. The FDNLP issue occurs either in hands free or headset modes.
Could you provide any guidance on what might be the likely cause of this issue?
Initial checks show that the buffer allocation seem correct. Are there any particular buffer requirements or parameter setting we should check?
Kind regards,
Simon