Audio transmission delay measuring method and system
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A technology of transmission delay and measurement method, which is applied in the direction of transmission system, transmission monitoring, network of provided telephone services, etc., can solve the problem of inaccurate calculation of audio transmission delay and so on.
Active Publication Date: 2014-10-29
TENCENT TECH CHENGDU
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[0013] Embodiments of the present invention provide a method and system for measuring audio transmission dela
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Embodiment 1
[0051] According to an embodiment of the present invention, a method for measuring audio transmission delay is provided, such as figure 1 As shown, the method includes:
[0052] S202. Synchronize the transmission of the original audio codebook to be tested between the sending end and the receiving end, and obtain the sending start indication information, the sending end indication information, the receiving start indication information, and the receiving end indication information of the original audio codebook;
[0053] Optionally, when synchronizing the transmission of the original audio codebook to be tested, instruction information for controlling the start and end of sending and receiving the original audio codebook will be obtained.
[0054] Optionally, the devices for synchronous operation in this embodiment include but are not limited to: a GPS synchronization control device and a signaling control server synchronization control device.
[0055] It should be noted tha...
Embodiment 2
[0140] According to an embodiment of the present invention, a system for implementing the above audio transmission delay measurement is also provided, such as Figure 9 As shown, the device includes:
[0141] 1) The first synchronization unit 902 at the sending end and the second synchronization unit 903 at the receiving end are used to synchronize the transmission of the original audio codebook to be tested between the sending end and the receiving end to obtain the transmission of the original audio codebook Start indication information, send end indication information, receive start indication information, receive end indication information;
[0142] Optionally, when synchronizing the transmission of the original audio codebook to be tested, instruction information for controlling the start and end of sending and receiving the original audio codebook will be obtained.
[0143] Optionally, the devices for synchronous operation in this embodiment include but are not limited ...
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Abstract
The invention discloses an audio transmission delay measuring method and system. The method comprises performing synchronization operation on transmission of an original audio codebook to be measured between a transmitting end and a receiving end to obtain the transmission starting indicating information, the transmission ending indicating information, the receiving starting indicating information and the receiving ending indicating information of the original audio codebook; enabling the transmitting end to respond to the transmission starting indicating information and transmit the original audio codebook to be measured to the receiving end and to respond to the transmission ending indicating information and stop transmitting the original audio codebook to the receiving end, and enabling the receiving end to respond to the receiving starting indicating information and collect the original audio codebook transmitted by the transmitting end and to respond to the receiving ending indicating information and stop collecting the original audio codebook transmitted by the transmitting end; obtaining audio transmission delay according to the testing audio codebook collected by the receiving end and the original audio codebook prestored in the receiving end. The audio transmission delay measuring method and system solves the problem of inaccurate computation of audio transmission delay in the prior art.
Description
technical field [0001] The present invention relates to the field of communications, in particular to a method and system for measuring audio transmission delay. Background technique [0002] Delay is a crucial factor in voice communication. End-to-end delay refers to the delay in the whole process of voice collection, preprocessing, encoding, packaging, network transmission, unpacking, and final playback. However, too much delay will affect the audience's subjective hearing experience of voice products, so it is necessary to measure and evaluate the delay of the voice system. Some of the current delay measurement methods are based on intrusive and non-intrusive methods. [0003] Intrusive measurement is to go deep into the speech system under test, and has some characteristics for intrusive systems: [0004] First of all, since the measurement data is usually attached to the data frame or data packet of the system under test to be transmitted, it is inevitable to go throu...
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