Method for selectively playing sound signal and user terminal

Abstract

The embodiment of the present disclosure relates to a method of selectively playing a sound signal and a user terminal. By high-pass filtering on a sound signal, it is determined whether a feature identification signal is present in the sound signal; in the presence of the feature identification signal, a filtering method for subsequent sound signals is changed, and the processed superimposed sound signal is resent to a user. The method and the user terminal can help the user to timely and accurately obtain key information only for the user from a plurality of complex environmental sound sources by automatically distinguishing important information in the environment and alerting the user at any time, while avoiding disturbing surrounding other users around associated with the key information.

Description

technical field [0001] The present disclosure relates to the field of audio processing, and more particularly to a method for selectively playing sound signals and a user terminal. Background technique [0002] In public places with dense crowds and noisy sounds such as shopping malls, squares, playgrounds, sports fields, and airports, it is often necessary to broadcast in order to provide key information to some specific groups of people. For example, at the airport, it may be necessary to broadcast the names of certain passengers who need to be re-checked due to luggage problems; Broadcast tracing information to children lost with their parents, etc. Because the ambient sound is too noisy, specific groups of people who need these key information may miss the information due to negligence, thus causing various inconveniences and even dangerous situations. It is also possible that certain groups of people with these key messages have hearing impairment due to diseases, age...

AI Technical Summary

Problems solved by technology

[0003] In addition, because these key information are only valuable to individuals, if they continue to broadcast to the whole group, it is easy to cause trouble for others and make them feel bored

Although it is possible to push information in a targeted manner with the popularization of mobile terminals such as smart phones, it is also difficult to find out the information held by a certain group of people because there are a large number of random people in these public places rather than a fixed user group. Some mobile terminals still rely on traditional broadcasting methods to push information

[0004] In the prior art, there is no suitable means to remind specific groups of people to avoid ignoring their very critical information in public places, and to avoid dissatisfaction caused by other groups of people hearing irrelevant information. Can simply repeat the notification when it does not reach a specific group of people after broadcasting several times, which not only affects the experience of most people, but also wastes broadcasting resources

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