End-to-end audio signal delay test method

Abstract

The invention relates to the technical field of audio testing and particularly relates to an end-to-end audio signal delay testing method. The method comprises the following steps that a first terminal sends out first audio information through a first audio signal generator, and a first conversion device converts the first audio information into a first continuous sound testing signal; the first continuous sound test signal is sent to a second conversion device through a system network, and a second continuous sound test signal is obtained after the first continuous sound test signal is transmitted through the system network and the second conversion device, a second microphone arranged at a second terminal obtains the second continuous sound test signal, and an audio analyzer arranged atthe second terminal compares the first continuous sound test signal with the second continuous sound test signal; according to the method, the delay information of the audio signal is effectively tested and obtained, the method is simple, easy to implement and high in efficiency, and the first audio signal generator serves as a simulation device and is high in stability and reliability.

Description

technical field [0001] The invention relates to the technical field of audio testing, in particular to an end-to-end audio signal delay testing method. Background technique [0002] At present, there are many digital end-to-end devices with no standard interface or non-standard transmission protocol or encryption technology. The existing electro-acoustic test method cannot be used for effective testing, and only the end-to-end full-range acoustic signal test can be used. Among them, taking the building intercom system as an example of residential security technology and prevention products, because of the non-standard transmission protocol and non-standard interface, the voice quality test can only be tested in the whole process. For example, when the visitor presses the room number on the visitor pager at the entrance of the building, the owner removes the user receiver microphone at home or adopts a hands-free method to have a conversation with the guest. In the process, t...

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, the present invention provides an end-to-end audio signal delay testing method to solve the problem of efficiently testing the delay of audio signals based on echo suppression of communication signals

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