WO2015172310A1

WO2015172310A1 - Audio data testing method and device

Info

Publication number: WO2015172310A1
Application number: PCT/CN2014/077359
Authority: WO
Inventors: 谭冠中
Original assignee: 华为技术有限公司
Priority date: 2014-05-13
Filing date: 2014-05-13
Publication date: 2015-11-19
Also published as: CN105517651A; CN105517651B

Abstract

An audio data testing method and device, the method comprising: acquiring second audio data according to a first synchronization identifier and first audio data (401); and transmitting the second audio data to a receiving end, the first synchronization identifier being used to indicate the time when the receiving end starts to test the first audio data (402). The method easily and conveniently realizes audio data synchronization testing.

Description

Audio data testing method and device

[Technical Field]

The present invention relates to the field of communications, and in particular, to a method and a device for testing audio data. 【Background technique】

Currently, there is a test scenario in which the transmitting end needs to send the audio data to be tested to the receiving end, and the receiving end tests the audio data. Please refer to FIG. 1 , which is a schematic diagram of audio data of a transmitting end and a receiving end in the prior art. As shown in FIG. 1 , after the audio data is transmitted and reaches the receiving end, the receiving end receives the audio data at a higher time than the transmitting end. There is a delay between the moments of the audio data.

In the above test scenario, the transmitting end and the receiving end are required to test and process the audio data at the starting point of the same audio data. Therefore, how to implement the synchronous testing of the audio data during the testing of the transmitting end and the receiving end is an urgent problem to be solved.

[Summary of the Invention]

In view of this, the embodiment of the present invention provides a method and a device for testing audio data, which can easily and conveniently synchronize the audio data.

In a first aspect, an embodiment of the present invention provides a method for testing audio data, including:

Obtaining second audio data according to the first synchronization identifier and the first audio data;

Transmitting the second audio data to the receiving end;

The first synchronization identifier is used to indicate a moment when the receiving end starts testing the first audio data.

In a first possible implementation manner of the first aspect, the obtaining the second audio data according to the first synchronization identifier and the first audio data includes:

Inserting the first synchronization identifier before the first audio data to obtain the second audio data. In combination with the first aspect or the first possible implementation of the first aspect, the second in the first aspect In a possible implementation manner, the first synchronization identifier is third audio data.

In conjunction with the second possible implementation of the first aspect, in a third possible implementation of the first aspect, the third audio data comprises at least one dual tone multi-frequency DTMF pulse signal.

In a fourth possible implementation manner of the first aspect, the obtaining the second audio data according to the first synchronization identifier and the first audio data includes:

Inserting the first synchronization identifier before the first audio data, inserting the second synchronization identifier after the first audio data, to obtain the second audio data;

The second synchronization identifier is used to indicate a time when the receiving end stops testing the first audio data.

In conjunction with the first possible implementation of the first aspect, or the fourth possible implementation of the first aspect, in a fifth possible implementation manner of the first aspect, the first synchronization identifier and the first The first time interval is included between the audio data, and the first time interval is greater than or equal to 0 ms.

With the fifth possible implementation of the first aspect, in a sixth possible implementation manner of the first aspect, the second synchronization identifier and the first audio data include a second time interval, The second time interval is greater than or equal to 0 ms.

In conjunction with the fourth possible implementation of the first aspect, or the sixth possible implementation of the first aspect, in a seventh possible implementation of the first aspect, the second synchronization identifier is a fourth audio data. .

In conjunction with the seventh possible implementation of the first aspect, in an eighth possible implementation of the first aspect, the fourth audio data includes at least one DTMF pulse signal.

In a second aspect, an embodiment of the present invention provides a method for testing audio data, including: receiving second audio data sent by a transmitting end, where the second audio data includes a first synchronization identifier and first audio data, where a synchronization identifier is used to indicate a time at which the first audio data is started to be tested; and the first audio data is tested at a time when the first synchronization indicator indicates a start of the test. In a first possible implementation manner of the second aspect, the first synchronization identifier and the first audio data include a first time interval; the moment when the first synchronization identifier indicates a start test , starting to test the first audio data, including:

Detecting the first synchronization identifier;

If the first synchronization identifier is detected, timing is started;

The first audio data is tested if the timing duration reaches the preset first time interval.

With the second aspect or the first possible implementation of the second aspect, in a second possible implementation manner of the second aspect, the second audio data further includes a second synchronization identifier, where the method further includes: Detecting the second synchronization identifier;

If the second synchronization indicator is detected, the first audio data is stopped from being tested.

With reference to the second aspect or the first possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the method further includes:

If the first audio data is tested, start timing;

If the timing duration reaches a preset test duration, the test of the first audio data is stopped.

In a third aspect, an embodiment of the present invention provides a test device for audio data, where the device is a sender, and the device includes:

a processor, configured to obtain second audio data according to the first synchronization identifier and the first audio data, where the first synchronization identifier is used to indicate a time when the receiving end starts testing the first audio data;

And a transmitter, configured to send the second audio data to the receiving end.

In a first possible implementation manner of the third aspect, the processor is specifically configured to:

Inserting the first "synchronization flag" before the first audio data to obtain the second audio data. In conjunction with the third aspect, or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the first synchronization identifier is a third audio data.

In combination with the second possible implementation of the third aspect, the third possible implementation in the third aspect In the current mode, the third audio data includes at least one DTMF pulse signal.

In a fourth possible implementation manner of the third aspect, the processor is specifically configured to: insert the first synchronization identifier before the first audio data, and insert a second after the first audio data Synchronizing the identifier to obtain the second audio data;

With the first possible implementation of the third aspect or the fourth possible implementation of the third aspect, in a fifth possible implementation manner of the third aspect, the first synchronization identifier and the first The first time interval is included between the audio data, and the first time interval is greater than or equal to 0 ms.

With the fifth possible implementation of the third aspect, in a sixth possible implementation manner of the third aspect, the second synchronization identifier and the first audio data include a second time interval, The second time interval is greater than or equal to 0 ms.

With the fourth possible implementation of the third aspect or the sixth possible implementation of the third aspect, in a seventh possible implementation manner of the third aspect, the second synchronization identifier is a fourth audio data. .

In conjunction with the seventh possible implementation of the third aspect, in an eighth possible implementation of the third aspect, the fourth audio data includes at least one DTMF pulse signal.

In a fourth aspect, an embodiment of the present invention provides a test device for audio data, where the device is a receiving end, and the device includes:

a receiver, configured to receive second audio data that is sent by the sending end, where the second audio data includes a first synchronization identifier and first audio data, where the first synchronization identifier is used to indicate to start testing the first audio data. Moment

And a processor, configured to start testing the first audio data at a time when the first synchronization indicator indicates a start test.

In a first possible implementation manner of the fourth aspect, the first synchronization identifier and the first audio The first time interval is included between the data; the processor is specifically configured to:

Detecting the first synchronization identifier;

If the first synchronization identifier is detected, timing is started;

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the second audio data further includes a second synchronization identifier; For: detecting the second synchronization identifier;

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, the processor is further configured to:

If the first audio data is tested, start timing;

It can be seen from the above technical solutions that the embodiments of the present invention have the following beneficial effects:

The transmitting end adds a synchronization identifier to the sent audio data to be tested, and uses the synchronization identifier to indicate the time at which the receiving end starts testing the audio data, so that the transmitting end and the receiving end can test the audio data at the same starting point, Synchronous testing of audio data is simple and convenient, so that the transmitting end and the receiving end can achieve synchronization accuracy within several tens of milliseconds.

[Description of the Drawings]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. One of ordinary skill in the art can also obtain other drawings based on these drawings without paying for inventive labor.

1 is a schematic diagram of audio data of a transmitting end and a receiving end in the prior art;

2 is a schematic diagram of a DTMF pulse signal in an embodiment of the present invention; 3 is a schematic structural diagram of a system used in the technical solution provided by the embodiment of the present invention; FIG. 4 is a schematic flowchart diagram of Embodiment 1 of a method for testing audio data according to an embodiment of the present invention;

FIG. 5 is a first schematic diagram of audio data in an embodiment of the present invention; FIG.

6 is a second schematic diagram of audio data in an embodiment of the present invention;

7 is a schematic flow chart of Embodiment 2 of a method for testing audio data according to an embodiment of the present invention;

FIG. 8 is a functional block diagram of Embodiment 1 of a test apparatus for audio data according to an embodiment of the present invention; FIG.

FIG. 9 is a schematic structural diagram of Embodiment 1 of a test apparatus for audio data according to an embodiment of the present invention;

FIG. 10 is a functional block diagram of Embodiment 2 of a test apparatus for audio data according to an embodiment of the present invention; FIG.

FIG. 11 is a schematic structural diagram of Embodiment 2 of a test apparatus for audio data according to an embodiment of the present invention.

【detailed description】

For a better understanding of the technical solutions of the present invention, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

It should be understood that the described embodiments are only a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The Dual Tone Multi Frequency (DTMF) pulse signal is composed of a high frequency signal group and a low frequency signal group, and the high frequency signal group and the low frequency signal group each have four kinds of frequency DTMF pulse signals; as shown in Table 1, A high frequency signal and a low frequency signal can be superimposed to form a DTMF pulse signal, which can use a number from 1 to 9, a letter in A~D, # or * It is indicated that a DTMF pulse signal composed of, for example, a high frequency signal of 1209 Hz and a low frequency signal of 697 Hz may represent the number 1.

Table 1

Please refer to FIG. 2, which is a schematic diagram of a DTMF pulse signal according to an embodiment of the present invention. As shown, each DTMF pulse signal corresponds to an audio duration, which is the DTMF pulse width shown in FIG.

As shown in FIG. 3, the system used in the technical solution provided by the embodiment of the present invention is composed of a transmitting end and a receiving end, and the transmitting end is mainly used for sending audio data to be tested to the receiving end, so that the receiving end can receive the received audio. The data is tested and the test results are obtained. In the embodiment of the present invention, the functions of the transmitting end and the receiving end are changed, that is, the transmitting end inserts the synchronization identifier before the audio data to be tested, or before the audio data and after the audio data, and then sends the synchronization identifier together with the audio data. To the receiving end, the receiving end starts or stops the test of the audio data according to the synchronization identifier. The audio data may be audio code based on Pulse Code Modulation (PCM); the sender may be a client device, such as a personal computer (PC), a laptop, a mobile phone or a tablet. Etc., the receiving end can be a server. The communication mode between the sender and the receiver may be a wired mode, such as the Internet, or a wireless mode, such as a wireless network such as 3G.

The embodiment of the present invention provides a method for testing audio data. Referring to FIG. 4, it is a schematic flowchart of Embodiment 1 of a method for testing audio data according to an embodiment of the present invention. The method of this embodiment is in audio. The sender side of the data is implemented. As shown in the figure, the method includes the following steps:

Step 401: Obtain second audio data according to the first synchronization identifier and the first audio data. Specifically, first, the first synchronization identifier may be pre-stored in the sending end; or the sending end may also generate the first synchronization identifier. In the embodiment of the present invention, the first synchronization identifier may be the third audio data. Referring to FIG. 5, it is a first schematic diagram of audio data in the embodiment of the present invention. As shown in FIG. 5, the third audio data is used. At least one DTMF pulse signal may be included, and the pulse width of each DTMF pulse signal is that, in the embodiment of the present invention, one or more DTMF pulse signals having a pulse width of one may be utilized as the first synchronization indicator. Wherein, the pulse width of each DTMF pulse signal needs to be equal to or greater than 65 ms, and if at least two DTMF pulse signals are included, the interval between each two DTMF pulse signals needs to be equal to or greater than 65ms.

Then, the receiving end obtains the second audio data according to the first synchronization identifier and the first audio data, and the method may include the following two types:

The first type: the receiving end inserts the first synchronization identifier before the first audio data, and obtains the second audio data, so that the second audio data includes a first synchronization identifier and first audio data, the first audio The data is the audio data that the receiver needs to test synchronously. For example, the first synchronization identifier may be third audio data, and the third audio data may include at least one DTMF pulse signal, and inserting at least one DTMF pulse signal before the first audio data, which is equivalent to using the DTMF pulse signal as test data. Part of the transmission.

As shown in FIG. 5, in order to apply to multiple test scenarios, a first time interval ^ may be set between the first synchronization identifier and a starting point of the first audio data, where the first time interval ^ is greater than or Equal to 0ms. When the first time interval ^ is equal to 0 ms, there is no time interval between the first synchronization identifier and the first audio data, and the first audio data is the first audio data; if the first time interval t _{2 is} greater than 0 ms And indicating that there is a time interval between the first synchronization identifier and the first audio data, and is required to be after the first synchronization identifier, and after the first time interval ^, is the first audio data. Here, a reasonable first time interval t ₂ can be set so that the receiving end has enough time to recognize the first synchronization indicator. The second type: In some test scenarios, the test duration can be preset in the receiving end, and the receiving end starts counting when the first audio data is started to be tested. When the timing reaches the test duration, the receiving end automatically stops testing. The first audio data, when the test is stopped, the first audio data may not be tested, or may have been tested. In the above test scenario, the first method may be used to insert the first synchronization identifier only in front of the first audio data, and only the first synchronization identifier needs to be used to indicate when the receiver starts to perform the test, and no indication is needed. When the receiving end stops testing; however, in some test scenarios, the test duration is not set in advance at the receiving end, so that the transmitting end needs to send the synchronization identifier for instructing to stop the test when transmitting the first audio data. , Methods as below:

First, the second synchronization identifier may be pre-stored in the sending end; or the second synchronization identifier may be generated by the sending end. In the embodiment of the present invention, the second synchronization identifier is similar to the first synchronization identifier, and may be the fourth audio. Please refer to FIG. 6, which is a second schematic diagram of audio data in an embodiment of the present invention. As shown in FIG. 6, the fourth audio data may include at least one DTMF pulse signal, and the pulse width of each DTMF pulse signal is That is, in the embodiment of the present invention, one or more DTMF pulse signals having a pulse width of ^ may be utilized as the second synchronization indicator.

Then, after inserting the first synchronization identifier before the first audio data, inserting the second synchronization identifier after the first audio data, obtaining the second audio data, where the second synchronization identifier is used At a timing indicating that the receiving end stops testing the first audio data. In this way, the second audio data includes a first synchronization identifier, a first audio data, and a second synchronization identifier, which is equivalent to using the DTMF pulse signal included in the first synchronization identifier and the DTMF pulse signal included in the second synchronization identifier as part of the test data. Transfer.

As shown in FIG. 6 , a second time interval may be set between the first audio data and the second synchronization identifier, where the second time interval is greater than or equal to 0 ms. When the second time interval is equal to 0 ms, there is no time interval between the second synchronization identifier and the first audio data, and the second synchronization identifier is after the first audio data; if the second time interval is greater than 0 ms, the indication is There is a time interval between the second synchronization identifier and the first audio data. It is required to be after the first audio data, and after the second time interval, is the second synchronization identifier. Wherein, a reasonable second time interval t ₄ can be set, so that the receiving end has enough time to recognize the second synchronization identifier.

Step 402: Send the second audio data to the receiving end.

Specifically, the transmitting end after obtaining a second audio data, the second audio data transmitted to the receiving end, as shown in Figure 5, the second audio data over the transport time t _3, arrive at the receiving end.

The embodiment of the present invention provides a method for testing audio data. Please refer to FIG. 7 , which is a schematic flowchart of Embodiment 2 of a method for testing audio data according to an embodiment of the present invention. The method in this embodiment is in audio. The receiving end side of the data is implemented. As shown in the figure, the method includes the following steps:

Step 701: Receive second audio data that is sent by the sending end, where the second audio data includes a first synchronization identifier and first audio data, where the first synchronization identifier is used to indicate a time when the first audio data is started to be tested.

Specifically, the receiving end receives the second audio data that is sent by the sending end, where the second audio data includes the first synchronization identifier and the first audio data, or the second audio data includes the first synchronization identifier and the first audio data. And a second synchronization identifier. The first synchronization identifier is used to indicate a time when the first audio data is tested, and the second synchronization identifier is used to indicate a time when the first audio data is stopped.

Step 702: Start testing the first audio data at a time when the first synchronization indicator indicates a start test.

Specifically, when the first synchronization indicator indicates the start of the test, starting to test the first audio data may include the following two methods:

The first type, the first time interval between the first synchronization identifier and the first audio data is equal to 0, the receiving end detects the first synchronization identifier, and when the receiving end detects the first synchronization identifier, according to the preset The first time interval t ₂ , the test processing of the first audio data is performed immediately to obtain the test result; for example, the test processing of the first audio data may be an alignment test of the quality influence of the transmission channel quality on the audio. Second: the first time interval t ₂ between the first synchronization identifier and the first audio data is not equal to

0, the receiving end detects the first synchronization identifier; when the receiving end detects the first synchronization identifier, starts timing with a preset timer; when the timer duration of the timer reaches a preset first time interval At the time of ^, the first audio data is tested to obtain a test result.

Optionally, if the second audio data further includes a second synchronization identifier, in the foregoing method, the step

After the 702, the method further includes: detecting the second synchronization identifier, and stopping detecting the first audio data if the second synchronization identifier is detected.

Optionally, after the step 702, the method may further include: if the receiving end starts testing the first audio data, the receiving end starts timing, and when the timing duration reaches a preset testing duration, the receiving end stops testing. The first audio data is described.

In the embodiment of the present invention, if the first synchronization identifier or the second synchronization identifier includes at least one DTMF pulse signal, the receiving end may detect the DTMF pulse signal by using a detection algorithm, so as to realize the DTMF from the audio data. Pulse signal, thereby obtaining a first synchronization identifier or a second synchronization identifier; wherein the detection algorithm may be a Goertzel algorithm.

Embodiments of the present invention further provide an apparatus embodiment for implementing the steps and methods in the foregoing method embodiments.

Please refer to FIG. 8 , which is a functional block diagram of Embodiment 1 of a test apparatus for audio data according to an embodiment of the present invention. As shown in the figure, the device is the foregoing sending end, and the device includes:

The processor 80 is configured to obtain second audio data according to the first synchronization identifier and the first audio data, where the first synchronization identifier is used to indicate a time when the receiving end starts testing the first audio data, and the transmitter 81 And sending the second audio data to the receiving end.

The processor 80 is specifically configured to: insert the first synchronization identifier before the first audio data, to obtain the second audio data.

The first synchronization identifier is third audio data. The third audio data includes at least one dual tone multi-frequency DTMF pulse signal. The processor 80 is specifically configured to: insert the first synchronization identifier before the first audio data, insert a second synchronization identifier after the first audio data, to obtain the second audio data; The second synchronization identifier is used to indicate a moment when the receiving end stops testing the first audio data.

The first synchronization identifier and the first audio data include a first time interval, and the first time interval is greater than or equal to 0 ms.

The second synchronization identifier and the first audio data include a second time interval, where the second time interval is greater than or equal to 0 ms.

The second synchronization identifier is fourth audio data. The fourth audio data includes at least one DTMF pulse signal.

Please refer to FIG. 9, which is a schematic structural diagram of Embodiment 1 of a test apparatus for audio data according to an embodiment of the present invention. As shown in the figure, the device is the foregoing sending end, and the device includes:

a memory 90, configured to store one or more sets of program codes;

The processor 91 is coupled to the memory 90 and the transmitter 92, respectively, for invoking the program code stored in the memory 90 to perform the method shown in FIG. 4, and specifically includes: obtaining, according to the first synchronization identifier and the first audio data, a second audio data, where the first synchronization identifier is used to indicate a time when the receiving end starts testing the first audio data;

The transmitter 92 is configured to send the second audio data to the receiving end.

Since the processor 91 and the transmitter 92 in this embodiment are capable of executing the method shown in FIG. 4, and the portions not described in detail in this embodiment, reference may be made to the related description of FIG.

Please refer to FIG. 10, which is a functional block diagram of Embodiment 2 of a test apparatus for audio data according to an embodiment of the present invention. As shown in the figure, the device is the receiving end, and the device includes:

The receiver 100 is configured to receive second audio data that is sent by the sending end, where the second audio data includes a first synchronization identifier and first audio data, where the first synchronization identifier is used to indicate to start testing the first audio data. Moment

The processor 101 is configured to start at the time of starting the test indicated by the first synchronization identifier. The first audio data is tested.

The first synchronization identifier and the first audio data include a first time interval. The processor 101 is specifically configured to: detect the first synchronization identifier; and if the first synchronization identifier is detected , starting timing; if the timing duration reaches the preset first time interval, the first audio data is tested.

The second audio data further includes a second synchronization identifier; the processor 101 is further configured to: detect the second synchronization identifier; if the second synchronization identifier is detected, stop testing the first audio data.

The processor 101 is further configured to: start timing when the first audio data is started to be tested; and stop testing the first audio data if the timing duration reaches a preset test duration.

The second synchronization identifier includes a second time interval, and the processor 101 is configured to: start time counting if the second synchronization identifier is detected; and if the timing duration reaches the second time interval The duration of time, stopping testing the first audio data.

FIG. 1 is a schematic structural diagram of Embodiment 2 of a test apparatus for audio data according to an embodiment of the present invention. As shown in the figure, the device is the receiving end, and the device includes:

The receiver 1 10 is configured to receive second audio data that is sent by the sending end, where the second audio data includes a first synchronization identifier and first audio data, where the first synchronization identifier is used to indicate to start testing the first audio. The moment of the data;

The memory 1 1 1 is configured to store one or more sets of program codes;

The processor 1 12 is coupled to the receiver 1 10 and the memory 1 1 1 respectively, and is configured to call the program code stored in the memory to perform the method shown in FIG. 7 , and specifically includes: indicating, by the first synchronization identifier At the moment when the test is started, the first audio data is tested.

Since the receiver 1 10 and the processor 1 12 in this embodiment can perform the method shown in FIG. 7, and the portions not described in detail in this embodiment, reference may be made to the related description of FIG.

For example, both the sender and the receiver can be Mean Opinion Score (Mean Opinion Score, M〇S) test device, wherein the processor in the sender can be a cool edit for the music editing application. The technical solution of the embodiment of the invention has the following beneficial effects:

1. The transmitting end adds a synchronization identifier to the audio data to be tested, and uses the synchronization identifier to indicate the time at which the receiving end starts testing the audio data, so that the transmitting end and the receiving end can test the audio data at the same starting point, Simultaneously and conveniently realize the synchronous test of audio data, so that the transmitting end and the receiving end can achieve synchronization precision within several tens of milliseconds.

2. In the prior art, the transmitting end uses the control message independent of the audio data to control the receiving end to start testing and stop the test, and the receiving end also needs to confirm whether the control message is received. The technical solution of the embodiment of the present invention is Compared with the technology, the transmitting end only needs to use the synchronization identifier as part of the audio data, and sends it to the receiving end, and does not need to separately send the control instruction. Therefore, the implementation method is relatively simple, the implementation complexity of the device is reduced, and the audio data is tested. Efficiency and reliability.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalents, improvements, etc., which are made within the spirit and principles of the present invention, should be included in the present invention. Within the scope of protection.

Claims

Claim

A method for testing audio data, the method comprising:

Transmitting the second audio data to the receiving end;

The first synchronization identifier is used to indicate a time when the receiving end starts testing the first audio data.

The method according to claim 1, wherein the obtaining the second audio data according to the first synchronization identifier and the first audio data comprises:

Inserting the first synchronization identifier before the first audio data to obtain the second audio data.

The method according to claim 1 or 2, wherein the first synchronization identifier is third audio data.

4. The method of claim 3, the third audio data comprising at least one dual tone multi-frequency DTMF pulse signal.

6. A method according to claim 2 or 5, characterized in that

A first time interval is included between the first synchronization identifier and the first audio data, and the first time interval is greater than or equal to 0 ms.

7. The method of claim 5, wherein

A second time interval is included between the second synchronization identifier and the first audio data, and the second time interval is greater than or equal to 0 ms.

The method according to claim 5 or 7, wherein the second synchronization identifier is Four audio data.

9. The method of claim 8, the fourth audio data comprising at least one DTMF pulse signal.

10. A method of testing audio data, the method comprising:

Receiving second audio data sent by the sending end, where the second audio data includes a first synchronization identifier and first audio data, where the first synchronization identifier is used to indicate a time when the first audio data is started to be tested; The first audio data is tested at the moment when the first synchronization indicator indicates the start of the test.

The method according to claim 10, wherein the first synchronization identifier and the first audio data comprise a first time interval; the first synchronization indicator indicates a start test At the moment, the first audio data is tested, including:

Detecting the first synchronization identifier;

If the first synchronization identifier is detected, timing is started;

If the timing duration reaches the preset first time interval, the first audio data is tested.

The method according to claim 10 or 11, wherein the second audio data further includes a second synchronization identifier; the method further includes:

Detecting the second synchronization identifier;

The method according to claim 10 or 11, wherein the method further comprises: starting to test the first audio data, starting timing;

A device for testing audio data, wherein the device is a transmitting end, and the device includes:

a processor, configured to obtain second audio data according to the first synchronization identifier and the first audio data, where the first synchronization identifier is used to indicate a time when the receiving end starts testing the first audio data; Transmitting the second audio data to the receiving end.

The device according to claim 14, wherein the processor is specifically configured to: Inserting the first synchronization identifier before the first audio data to obtain the second audio data.

The device according to claim 14 or 15, wherein the first synchronization identifier is third audio data.

17. Apparatus according to claim 16 wherein said third audio data comprises at least one DTMF pulse signal.

The device according to claim 14, wherein the processor is configured to insert the first synchronization identifier before the first audio data, and insert the first audio data Two synchronization identifiers, obtaining the second audio data;

19. Apparatus according to claim 15 or claim 18 wherein:

20. Apparatus according to claim 18, wherein

The device according to claim 18 or 20, wherein the second synchronization identifier is fourth audio data.

22. Apparatus according to claim 21, said fourth audio data comprising at least one DTMF pulse signal.

A device for testing audio data, wherein the device is a receiving end, and the device includes:

a receiver, configured to receive second audio data sent by the sending end, where the second audio data includes a first synchronization identifier and first audio data, where the first synchronization identifier is used to indicate to start testing the first audio data. Moment

And a processor, configured to start testing the first audio data at a time of starting the test indicated by the first synchronization identifier.

The device according to claim 23, wherein the first synchronization identifier and the first audio data comprise a first time interval; the processor is specifically configured to:

Detecting the first synchronization identifier;

If the first synchronization identifier is detected, timing is started;

The device according to claim 23 or 24, wherein the second audio data further includes a second synchronization identifier; the processor is further configured to:

Detecting the second synchronization identifier;

The device according to claim 23 or 24, wherein the processor is further configured to:

If the first audio data is tested, start timing;