Abstract: A processing method includes acquiring an audio signal, magnifying one or more first portions of the audio signal in response to one or more magnitudes of the one or more first portions of the audio signal are lower than a predetermined threshold, deforming one or more second portions of the audio signal in response to one or more magnitudes of the one or more second portions of the audio signal are greater than the predetermined threshold, and performing a noise reduction to the one or more deformed second portions of the audio signal to reduce the one or more deformed second portions of the audio signal.

Abstract: A wearable electronic device includes a microphone array, stereo speakers and a control circuit. The microphone array is configured for sensing an environmental sound. The control circuit is coupled to the microphone array and the speaker. The control circuit is operable to calculate a distance and a directional angle from a source of the environmental sound to the wearable electronic device according to the environmental sound sensed by the microphone array, to generate an effect sound corresponding to the environmental sound, to process the effect sound for simulating the effect sound to be originated from a virtual location with the distance and the directional angle relative to the wearable electronic device, and to broadcast the processed effect sound through the pair of speakers.