High frequency compensating

Howling control device and howling control method

Howling detection circuit

Howling detection device and method

Method and apparatus for eliminating audio feedback

Method and apparatus for independent gain control of a...

Method and apparatus for reduction of unwanted feedback

Method and apparatus for reduction of unwanted feedback

Method and apparatus for suppressing acoustic feedback in an aud

Method and apparatus for suppressing acoustic feedback in an aud

Method and device for operating voice-controlled systems in...

Method and system for suppressing echoes and noises in...

Methods and systems for reducing acoustic echoes in...

Microphone-speaker apparatus

Multi-channel echo compensation system

Precise amplitude correction circuit

Procedure and device for linearizing the characteristic...

Process and apparatus for eliminating loudspeaker...

Reducing acoustic feedback with digital modulation

Signal amplifier system with improved echo cancellation