Audio signal distortion detection system

Abstract

The invention relates to the technical field of audio signal distortion detection, and discloses an audio signal distortion detection system, which comprises an audio signal data acquisition module, an audio signal analysis module and an audio distortion detection judgment module, the audio signal data acquisition module comprises an audio signal transmitting end data acquisition unit and an audio signal receiving end data acquisition unit. According to the system, receiving end analysis data are obtained by analyzing and calculating the sending time of an audio signal sent by an audio signal sending end, the receiving time of the audio signal, network fluctuation data of an audio signal receiving end and playing device version data of the audio signal receiving end; the audio signals received by all the audio signal receiving ends and the audio signals sent by the audio signal sending end are analyzed and calculated to obtain audio signal analysis data, finally audio distortion judgment is carried out, a judgment result is output, the audio is judged from network factors, transmission equipment factors and transmission packet loss processes, and the judgment result is output. And the comprehensiveness of audio distortion judgment is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of audio signal distortion detection, and in particular to an audio signal distortion detection system. Background Art

[0002] With the improvement of living standards, people have an increasing demand for electronic products, especially audio electronic products, which are the mainstream consumption of electronic products. Electronic products such as headphones, speakers, mobile phones, VR, AR, etc. all contain audio modules. However, when performing audio signal distortion detection in the existing technology, it often only detects from the audio waveform data or the connection status of the hardware, but ignores the audio signal distortion caused by various other objective factors. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the present invention provides an audio signal distortion detection system, which has the advantages of ensuring the comprehensiveness of audio distortion judgment and solves the above-mentioned technical problems.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: an audio signal distortion detection system, comprising an audio signal transmitting end and a plurality of audio signal receiving ends, including an audio signal data acquisition module, an audio signal analysis module and an audio distortion detection and judgment module;

[0007] The audio signal data acquisition module includes an audio signal sending end data acquisition unit and an audio signal receiving end data acquisition unit;

[0008] The audio signal sending end data acquisition unit is used to collect the sending time of the audio signal sent by the audio signal sending end;

[0009] The audio signal receiving end data acquisition unit is used to collect audio signal data received by all audio signal receiving ends, wherein the audio signal data includes the audio signal, the receiving time of the audio signal, the network fluctuation data of the audio signal receiving end, and the version data of the playback device of the audio signal receiving end;

[0010] The audio signal data acquisition module sends the collected audio signal sending time, audio signal, audio signal receiving time, network fluctuation data of the audio signal receiving end, and playback device version data of the audio signal receiving end to the audio signal analysis module;

[0011] The audio signal analysis module includes a signal analysis unit and a receiving end analysis unit. The signal analysis unit analyzes and calculates the audio signal analysis data based on the audio signal received by all audio signal receiving ends and the audio signal sent by the audio signal sending end. The receiving end analysis unit analyzes and calculates the receiving end analysis data based on the sending time of the audio signal sent by the audio signal sending end, the receiving time of the audio signal, the network fluctuation data of the audio signal receiving end, and the version data of the audio signal receiving end playback device. The audio signal analysis module sends the calculated audio signal analysis data and the receiving end analysis data to the audio distortion detection and judgment module.

[0012] The audio distortion detection and judgment module performs audio distortion judgment based on the audio signal analysis data and the receiving end analysis data, and outputs the judgment result.

[0013] As a preferred technical solution of the present invention, the specific expression of the audio signal receiving end data acquisition unit for acquiring the audio signal data received by all audio signal receiving ends is as follows:

[0014]

[0015] in, Indicates the audio signal receiving end collects the data set, Indicates the receiving time data set of the audio signal receiving end. represents the audio signal receiving end network fluctuation dataset, Indicates the version dataset of the audio signal receiving end playback device.

[0016] As a preferred technical solution of the present invention, the audio signal receiving end receives a receiving time data set of the audio signal The specific expression is as follows:

[0017]

[0018] in, Respectively represent the receiving time of the first audio signal receiving end receiving the audio signal, , No. The receiving time of the audio signal receiving end receiving the audio signal, , No. The receiving time of the audio signal receiving end receiving the audio signal, Indicates a data set of receiving time when an audio signal receiving end receives an audio signal.

[0019] As a preferred technical solution of the present invention, the receiving end analysis data includes audio signal receiving and sending time analysis data, network fluctuation analysis data of the audio signal receiving end, and audio signal receiving end playback device version analysis data. The specific expression of the audio signal receiving and sending time analysis data is as follows:

[0020]

[0021] in, Indicates The audio signal receiving and sending time analysis data of the audio signal receiving end, Indicates the time when the audio signal is sent by the audio signal sending end. A data set representing the receiving time of the audio signal received by the audio signal receiving end The minimum value, Indicates the receiving time data set of the audio signal receiving end. Indicates The receiving time of the audio signal receiving end receiving the audio signal.

[0022] As a preferred technical solution of the present invention, the audio signal receiving end network fluctuation data set The specific expression is as follows:

[0023]

[0024] in, Respectively represent the network fluctuation data of the first audio signal receiving end, , No. The network fluctuation data of the audio signal receiving end, , No. The network fluctuation data of the audio signal receiving end, Represents the audio signal receiving end network fluctuation dataset.

[0025] As a preferred technical solution of the present invention, the specific expression of the network fluctuation analysis data of the audio signal receiving end is as follows:

[0026]

[0027] in, Indicates The network fluctuation analysis data of the audio signal receiving end, Represents the audio signal receiving end network fluctuation data set The minimum value, Indicates The network fluctuation data of the audio signal receiving end.

[0028] As a preferred technical solution of the present invention, the audio signal receiving end playback device version data set The specific expression is as follows:

[0029]

[0030] in, Respectively represent the version data of the first audio signal receiving end playback device, , No. The version data of the audio signal receiving end playback device, , No. The audio signal receiving end playback device version data, Indicates the version dataset of the audio signal receiving end playback device.

[0031] As a preferred technical solution of the present invention, the specific steps of the receiving end analysis unit obtaining the version analysis data of the audio signal receiving end playback device are as follows:

[0032] Step A1: Compare the version data of the playback device at the audio signal receiving end with the encoding format of the audio signal sent by the audio signal sending end;

[0033] Step A2: If If the version data of the playback device at the first audio signal receiving end does not have the same encoding format as the audio signal sent by the audio signal sending end, the first audio signal receiving end playback device will be output. Audio signal receiving end playback device version analysis data , If the version data of the playback device at the first audio signal receiving end is consistent with the encoding format of the audio signal sent by the audio signal sending end, the first Audio signal receiving end playback device version analysis data .

[0034] As a preferred technical solution of the present invention, the signal analysis unit performs analysis and calculation based on the audio signals received by all audio signal receiving ends and the audio signals sent by the audio signal sending ends to obtain the specific expression of the audio signal analysis data as follows:

[0035]

[0036] in, Indicates Audio signal analysis data, Indicates the data size of the audio signal, Indicates The data size of the audio signal received by the audio signal receiving end.

[0037] As a preferred technical solution of the present invention, the specific steps of the audio distortion detection and judgment module performing audio distortion judgment based on the audio signal analysis data and the receiving end analysis data and outputting the judgment result are as follows:

[0038] Step B1: Determine Audio signal analysis data ,like , then terminate step B1 and output audio distortion. If , then execute step B2, Indicates the audio signal analysis data threshold;

[0039] Step B2: If Then execute step B3, if The output audio is distorted;

[0040] Step B3: Determine Audio signal receiving and sending time analysis data of the audio signal receiving end and Network fluctuation analysis data of audio signal receiving end Whether it exceeds the corresponding threshold. If neither exceeds the corresponding threshold, the output audio is normal. If any one exceeds the corresponding threshold, the output audio is abnormal and the audio signal sender is requested to resend.

[0041] Compared with the prior art, the present invention provides an audio signal distortion detection system, which has the following beneficial effects:

[0042] The present invention obtains receiving end analysis data by analyzing and calculating the sending time of the audio signal sent by the audio signal sending end, the receiving time of the audio signal, the network fluctuation data of the audio signal receiving end and the version data of the playback device of the audio signal receiving end, and obtains audio signal analysis data by analyzing and calculating the audio signals received by all audio signal receiving ends and the audio signals sent by the audio signal sending end, and finally performs audio distortion judgment and outputs the judgment result, judges the audio from the network factors, transmission equipment factors and transmission packet loss process, and ensures the comprehensiveness of the audio distortion judgment. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the system framework of the present invention. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] See also Figure 1 , an audio signal distortion detection system, comprising an audio signal transmitting end and a plurality of audio signal receiving ends, including an audio signal data acquisition module, an audio signal analysis module and an audio distortion detection and judgment module;

[0046] The audio signal data acquisition module includes an audio signal sending end data acquisition unit and an audio signal receiving end data acquisition unit;

[0047] The audio signal sending end data acquisition unit is used to collect the sending time of the audio signal sent by the audio signal sending end. The audio signal receiving end data acquisition unit is used to collect the audio signal data received by all audio signal receiving ends. The audio signal data includes the audio signal, the receiving time of the audio signal, the network fluctuation data of the audio signal receiving end, and the version data of the playback device of the audio signal receiving end. The specific expression of the audio signal receiving end data acquisition unit for collecting the audio signal data received by all audio signal receiving ends is as follows:

[0048]

[0049] in, Indicates the audio signal receiving end collects the data set, Indicates the receiving time data set of the audio signal receiving end. represents the audio signal receiving end network fluctuation dataset, Indicates the audio signal receiving end playback device version dataset, the audio signal receiving end receiving audio signal receiving time dataset The specific expression is as follows:

[0050]

[0051] in, Respectively represent the receiving time of the first audio signal receiving end receiving the audio signal, , No. The receiving time of the audio signal receiving end receiving the audio signal, , No. The receiving time of the audio signal receiving end receiving the audio signal, Represents the receiving time dataset of the audio signal receiving end, and the network fluctuation dataset of the audio signal receiving end The specific expression is as follows:

[0052]

[0053] in, Respectively represent the network fluctuation data of the first audio signal receiving end, , No. The network fluctuation data of the audio signal receiving end, , No. The network fluctuation data of the audio signal receiving end, Indicates the network fluctuation dataset of the audio signal receiving end and the version dataset of the playback device of the audio signal receiving end The specific expression is as follows:

[0054]

[0055] in, Respectively represent the version data of the first audio signal receiving end playback device, , No. The version data of the audio signal receiving end playback device, , No. The audio signal receiving end playback device version data, Represents the version data set of the audio signal receiving end playback device;

[0056] The audio signal data acquisition module sends the collected audio signal sending time, audio signal, audio signal receiving time, network fluctuation data of the audio signal receiving end, and playback device version data of the audio signal receiving end to the audio signal analysis module;

[0057] The audio signal analysis module includes a signal analysis unit and a receiving end analysis unit. The signal analysis unit analyzes and calculates the audio signal analysis data based on the audio signal received by all audio signal receiving ends and the audio signal sent by the audio signal sending end. The receiving end analysis unit analyzes and calculates the receiving end analysis data based on the sending time of the audio signal sent by the audio signal sending end, the receiving time of the audio signal, the network fluctuation data of the audio signal receiving end, and the version data of the audio signal receiving end playback device. The audio signal analysis module sends the calculated audio signal analysis data and receiving end analysis data to the audio distortion detection and judgment module. The receiving end analysis data includes audio signal sending and receiving time analysis data, audio signal receiving end network fluctuation analysis data, and audio signal receiving end playback device version analysis data.

[0058] The specific expression of the audio signal receiving and sending time analysis data is as follows:

[0059]

[0060] in, Indicates The audio signal receiving and sending time analysis data of the audio signal receiving end, Indicates the time when the audio signal is sent by the audio signal sending end. A data set representing the receiving time of the audio signal received by the audio signal receiving end The minimum value, Indicates the receiving time data set of the audio signal receiving end. Indicates The specific expression of the network fluctuation analysis data of the audio signal receiving end is as follows:

[0061]

[0062] in, Indicates The network fluctuation analysis data of the audio signal receiving end, Represents the audio signal receiving end network fluctuation data set The minimum value, Indicates The specific steps for the receiving end analysis unit to obtain the version analysis data of the playback device at the audio signal receiving end are as follows:

[0063] Step A1: Compare the version data of the playback device at the audio signal receiving end with the encoding format of the audio signal sent by the audio signal sending end;

[0064] Step A2: If If the version data of the playback device at the first audio signal receiving end does not have the same encoding format as the audio signal sent by the audio signal sending end, the first audio signal receiving end playback device will be output. Audio signal receiving end playback device version analysis data , If the version data of the playback device at the first audio signal receiving end is consistent with the encoding format of the audio signal sent by the audio signal sending end, the first Audio signal receiving end playback device version analysis data , where the audio signal receiving end playback device version data includes MP3, AAC, OGG, WMA, Opus, WAV, AIFF, etc. When the audio signal receiving end playback device version data has the same encoding format as the audio signal sent by the audio signal sending end or the receiving end can be compatible with opening the data sent by the sending end, it is judged to be consistent; if it is not compatible or cannot be opened, it is judged to be inconsistent.

[0065] The specific expression of the audio signal analysis data obtained by the signal analysis unit through analysis and calculation based on the audio signals received by all audio signal receiving ends and the audio signals sent by the audio signal sending ends is as follows:

[0066]

[0067] in, Indicates Audio signal analysis data, Indicates the data size of the audio signal, Indicates The data size of the audio signal received by the audio signal receiving end is calculated as the loss during the transmission process. .

[0068] The specific steps of the audio distortion detection and judgment module to judge the audio distortion based on the audio signal analysis data and the receiving end analysis data and output the judgment result are as follows:

[0069] Step B1: Determine Audio signal analysis data ,like , then terminate step B1 and output audio distortion. If , then execute step B2, Indicates the audio signal analysis data threshold;

[0070] Step B2: If Then execute step B3, if The output audio is distorted;

[0071] Step B3: Determine Audio signal receiving and sending time analysis data of the audio signal receiving end and Network fluctuation analysis data of audio signal receiving end Whether it exceeds the corresponding threshold. If neither exceeds the corresponding threshold, the output audio is normal. If any one exceeds the corresponding threshold, the output audio is abnormal and the audio signal sender is requested to resend.

[0072] Example:

[0073] In this embodiment , , , , , , , ,at this time, , , , , , , from which we can see If the corresponding threshold value exceeds 20, the output audio is abnormal. , at this time the output audio is distorted.

[0074] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An audio signal distortion detection system, comprising an audio signal transmitting end and a plurality of audio signal receiving ends, characterized in that: It includes an audio signal data acquisition module, an audio signal analysis module and an audio distortion detection and judgment module; The audio signal data acquisition module includes an audio signal sending end data acquisition unit and an audio signal receiving end data acquisition unit; The audio signal sending end data acquisition unit is used to collect the sending time of the audio signal sent by the audio signal sending end; The audio signal receiving end data acquisition unit is used to collect audio signal data received by all audio signal receiving ends, wherein the audio signal data includes the audio signal, the receiving time of the audio signal, the network fluctuation data of the audio signal receiving end, and the version data of the playback device of the audio signal receiving end; The audio signal data acquisition module sends the collected audio signal sending time, audio signal, audio signal receiving time, network fluctuation data of the audio signal receiving end, and playback device version data of the audio signal receiving end to the audio signal analysis module; The audio signal analysis module includes a signal analysis unit and a receiving end analysis unit. The signal analysis unit analyzes and calculates the audio signal analysis data based on the audio signal received by all audio signal receiving ends and the audio signal sent by the audio signal sending end. The receiving end analysis unit analyzes and calculates the receiving end analysis data based on the sending time of the audio signal sent by the audio signal sending end, the receiving time of the audio signal, the network fluctuation data of the audio signal receiving end, and the version data of the audio signal receiving end playback device. The audio signal analysis module sends the calculated audio signal analysis data and the receiving end analysis data to the audio distortion detection and judgment module. The audio distortion detection and judgment module performs audio distortion judgment based on the audio signal analysis data and the receiving end analysis data, and outputs the judgment result.

2. The audio signal distortion detection system according to claim 1, characterized in that: The specific expression of the audio signal receiving end data acquisition unit for acquiring the audio signal data received by all audio signal receiving ends is as follows: in, Indicates the audio signal receiving end collects the data set, Indicates the receiving time data set of the audio signal receiving end. represents the audio signal receiving end network fluctuation dataset, Indicates the version dataset of the audio signal receiving end playback device.

3. The audio signal distortion detection system according to claim 2, characterized in that: The audio signal receiving end receives the audio signal receiving time data set The specific expression is as follows: in, Respectively represent the receiving time of the first audio signal receiving end receiving the audio signal, , No. The receiving time of the audio signal receiving end receiving the audio signal, , No. The receiving time of the audio signal receiving end receiving the audio signal, Indicates a data set of reception time when an audio signal receiving end receives an audio signal.

4. The audio signal distortion detection system according to claim 3, characterized in that: The receiving end analysis data includes audio signal receiving and sending time analysis data, network fluctuation analysis data of the audio signal receiving end, and audio signal receiving end playback device version analysis data. The specific expression of the audio signal receiving and sending time analysis data is as follows: in, Indicates The audio signal receiving and sending time analysis data of the audio signal receiving end, Indicates the time when the audio signal is sent by the audio signal sending end. A data set representing the receiving time of the audio signal received by the audio signal receiving end The minimum value, Indicates the receiving time data set of the audio signal receiving end. Indicates The receiving time of the audio signal receiving end receiving the audio signal.

5. The audio signal distortion detection system according to claim 4, characterized in that: The audio signal receiving end network fluctuation data set The specific expression is as follows: in, Respectively represent the network fluctuation data of the first audio signal receiving end, , No. The network fluctuation data of the audio signal receiving end, , No. The network fluctuation data of the audio signal receiving end, Represents the audio signal receiving end network fluctuation dataset.

6. The audio signal distortion detection system according to claim 5, characterized in that: The specific expression of the network fluctuation analysis data of the audio signal receiving end is as follows: in, Indicates The network fluctuation analysis data of the audio signal receiving end, Represents the audio signal receiving end network fluctuation dataset The minimum value, Indicates The network fluctuation data of the audio signal receiving end.

7. The audio signal distortion detection system according to claim 6, characterized in that: The audio signal receiving end playback device version data set The specific expression is as follows: in, Respectively represent the version data of the first audio signal receiving end playback device, , No. The version data of the audio signal receiving end playback device, , No. The audio signal receiving end playback device version data, Indicates the version dataset of the audio signal receiving end playback device.

8. The audio signal distortion detection system according to claim 7, characterized in that: The specific steps of the receiving end analysis unit obtaining the version analysis data of the audio signal receiving end playback device are as follows: Step A1: Compare the version data of the playback device at the audio signal receiving end with the encoding format of the audio signal sent by the audio signal sending end; Step A2: If If the version data of the playback device at the first audio signal receiving end does not match the encoding format of the audio signal sent by the audio signal sending end, the first audio signal receiving end playback device will be output. Audio signal receiving end playback device version analysis data , If the version data of the playback device at the first audio signal receiving end is consistent with the encoding format of the audio signal sent by the audio signal sending end, the first Audio signal receiving end playback device version analysis data .

9. The audio signal distortion detection system according to claim 8, characterized in that: The specific expression of the audio signal analysis data obtained by the signal analysis unit through analysis and calculation based on the audio signals received by all audio signal receiving ends and the audio signals sent by the audio signal sending ends is as follows: in, Indicates Audio signal analysis data, Indicates the data size of the audio signal, Indicates The data size of the audio signal received by the audio signal receiving end.

10. The audio signal distortion detection system according to claim 9, characterized in that: The specific steps of the audio distortion detection and judgment module performing audio distortion judgment based on the audio signal analysis data and the receiving end analysis data and outputting the judgment result are as follows: Step B1: Determine Audio signal analysis data ,like , then terminate step B1 and output audio distortion. If , then execute step B2, Indicates the audio signal analysis data threshold; Step B2: If Then execute step B3, if The output audio is distorted; Step B3: Determine Audio signal receiving and sending time analysis data of the audio signal receiving end and Network fluctuation analysis data of audio signal receiving end Whether it exceeds the corresponding threshold. If neither exceeds the corresponding threshold, the output audio is normal. If any one exceeds the corresponding threshold, the output audio is abnormal and the audio signal sender is requested to resend.

Images