A method of processing audio signals during a communication session between a user device and a remote node, the method comprising: receiving a plurality of audio signals at audio input means at the user device including at least one primary audio signal and unwanted signals; receiving direction of arrival information of the audio signals at a noise suppression means; providing to the noise suppression means known direction of arrival information representative of at least some of said unwanted signals; estimating at least one principal direction from which the at least one primary audio signal is received at a beamformer of the audio input means; processing the plurality of audio signals at said beamformer to generate a single channel audio output signal by forming a beam in the at least one principal direction and substantially suppressing audio signals from any direction other than the principal direction, wherein the single channel audio output signal comprises a sequence of frames; and processing each of said frames of the audio signals in sequence at the noise suppression means, said processing comprising: reading direction of arrival of information for a principal signal component of a current frame being processed; comparing the direction of arrival of information for the principal signal component of the current frame and the known direction of arrival information; determining whether the principal signal component of the current frame is an unwanted signal based on said comparison; and treating the current frame as noise by applying maximum attenuation to the current frame being processed if it is determined that the principal signal component of the current frame is an unwanted signal. receiving a plurality of audio signals at audio input means at the user device including at least one primary audio signal and unwanted signals; receiving direction of arrival information of the audio signals at a noise suppression means; providing to the noise suppression means known direction of arrival information representative of at least some of said unwanted signals; estimating at least one principal direction from which the at least one primary audio signal is received at a beamformer of the audio input means; processing the plurality of audio signals at said beamformer to generate a single channel audio output signal by forming a beam in the at least one principal direction and substantially suppressing audio signals from any direction other than the principal direction, wherein the single channel audio output signal comprises a sequence of frames; and processing each of said frames of the audio signals in sequence at the noise suppression means, said processing comprising: reading direction of arrival of information for a principal signal component of a current frame being processed; comparing the direction of arrival of information for the principal signal component of the current frame and the known direction of arrival information; determining whether the principal signal component of the current frame is an unwanted signal based on said comparison; and treating the current frame as noise by applying maximum attenuation to the current frame being processed if it is determined that the principal signal component of the current frame is an unwanted signal. reading direction of arrival of information for a principal signal component of a current frame being processed; comparing the direction of arrival of information for the principal signal component of the current frame and the known direction of arrival information; determining whether the principal signal component of the current frame is an unwanted signal based on said comparison; and treating the current frame as noise by applying maximum attenuation to the current frame being processed if it is determined that the principal signal component of the current frame is an unwanted signal.