Portable audio signal i.e. music, listening device e.g. MPEG-1 audio layer 3 walkman, for e.g. coach, has analyzing and transferring unit transferring external audio signal that informs monitoring of sound event to user, to listening unit

摘要

#CMT# #/CMT# The device (1) has a transferring stage (20) transferring an internal audio signal (AS1) i.e. anti-noise signal, to a listening unit e.g. wireline passive headset (41), and a microphone (30a) e.g. cardioid, capturing sound from the exterior. An analyzing and transferring unit has a digital signal processor (DSP), a selector module, and an analyzing function that digitally analyzes an external audio signal (AS2) to detect a determined sound event e.g. impulsive noise. The transferring unit transfers the signal (AS2) that informs monitoring of the event to a user, to the listening unit. #CMT# : #/CMT# An independent claim is also included for a method for processing an audio signal in a portable device. #CMT#USE : #/CMT# Portable device e.g. walkman (claimed) such as audio walkman and multimedia or audio/video walkman e.g. MPEG-1 audio layer 3 (MP3)walkman, for listening an audio signal i.e. music, in a public transport unit such as aircraft, coach and train or a car. Can also be used for a portable telephone and a personal digital assistant. #CMT#ADVANTAGE : #/CMT# The configuration of the device permits application of an auditive correction function to the audio signal to ensure listening of the exterior sound by a hearing impaired person so as to permit the device to be used as audioprosthesis. permits the user to listen the audio signal without being disturbed by surrounding noise, in a simple manner. The configuration of the selector module permits simplification of a processing function of the audio signal, thus ensuring auditive comfort of the user by suppressing a low frequency region, where less agreeable sound is found, and hence improving safety of the user and ensuring better communication with others. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a block representation of a portable audio signal listening device.'(Drawing includes non-English language text)' AS1 : Internal audio signal AS2 : External audio signal DSP : Digital signal processor 1 : Portable audio signal listening device 20 : Transferring stage 30a : Microphone 41 : Wireline passive headset.