Acoustic echo cancellation

• Acoustic Echo Cancellation (AEC) uses the far-end signal as a reference to eliminate echoes in the near-end signal, ensuring clear communication.

Single channel AEC

– By utilizing time-frequency domain information, we designed a real-time full-network model for echo cancellation and noise suppression, distinct from the commonly used traditional methods followed by post-filtering solutions.

– Before AEC
​

– After AEC
​

Stereo AEC

– In stereo acoustic echo cancellation (SAEC), a microphone receives echoes from multiple loudspeakers, making it difficult to identify the echo paths and significantly complicating the echo cancellation task.

– Before SAEC
​

– After SAEC
​