Background Noise Transmission and Comfort Noise Insertion: The Influence of Signal Processing on "Speech"-Quality in Complex Telecommunication Scenarios
نویسندگان
چکیده
Background noise is present in many telephone calls and may influence the perceived overall quality of a connection quite significant. Different conversation situations have to be distinguished: Background noise may influence the transmission quality during periods where no speech signal is present, during periods with near end speech and with far end speech. Various analysis procedures are introduced ranging from simple level variation measurements to hearing bases models, the "Relative Approach". Some application examples are given.
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