CN113068108A - Earphone recording quality testing device and testing system - Google Patents
Earphone recording quality testing device and testing system Download PDFInfo
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- CN113068108A CN113068108A CN202110304820.XA CN202110304820A CN113068108A CN 113068108 A CN113068108 A CN 113068108A CN 202110304820 A CN202110304820 A CN 202110304820A CN 113068108 A CN113068108 A CN 113068108A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
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Abstract
The embodiment of the application provides a pair of earphone recording quality testing arrangement and system, including connecting device, connecting device includes hollow audio transmission passageway, audio transmission passageway's first opening is used for connecting the earphone, audio transmission passageway's second opening is used for connecting recording equipment, audio transmission passageway be used for with the audio frequency transmission of earphone broadcast extremely recording equipment. Adopt the technical scheme that this application embodiment provided, through connecting device with the sound of earphone broadcast mouth and recording equipment gather mouthful intercommunication, the audio frequency of sound broadcast mouth broadcast is transmitted to sound collection mouth by relative inclosed audio transmission channel, effectively promotes the recording quality, reduces external environment noise interference, reduces the restriction of test scene.
Description
Technical Field
The application relates to the technical field of earphone testing, in particular to an earphone recording quality testing device and system.
Background
The earphone is a pair of conversion units which receive the electric signals from the media player or receiver and convert them into audible sound waves by using a speaker near the ear. In order to improve the performance of the headset, a series of tests are usually performed on the headset during the manufacturing process of the headset.
In the test of the recording quality of the earphone, a microphone is aligned to be tightly attached to an earphone receiver, the earphone receiver sends test audio, the microphone collects the test audio, the standard test audio and the test audio collected by the microphone are compared, and the recording quality of the earphone is further judged. The quality of the recorded sound is generally affected by the following aspects: the accuracy of artificially connecting the earphone receiver and the microphone is not high, the earphone receiver and the microphone can be disconnected due to artificial touch or environment, and external sound interferes with recording.
In the prior art, the test of the recording quality of the earphone is generally required to be carried out in a quiet professional laboratory, and the earphone is not interfered by noise of the external environment when a microphone is used for carrying out audio sampling on the earphone. However, the scheme has high environmental requirements, and the test scene is limited.
Disclosure of Invention
The application provides an earphone recording quality testing arrangement and system to do benefit to and solve among the prior art earphone recording quality test environment requirement higher, receive external environment interference's problem easily.
In a first aspect, an embodiment of the present application provides an earphone recording quality testing device, including a connecting device, the connecting device includes a hollow audio transmission channel, a first opening of the audio transmission channel is used for connecting an earphone, a second opening of the audio transmission channel is used for connecting a recording device, the audio transmission channel is used for transmitting audio played by the earphone to the recording device.
Preferably, the first opening is matched with a sound playing port of the earphone; the second opening is matched with a sound collection port of the recording device.
Preferably, the connecting device is tubular, and the first opening and the second opening are circular.
Preferably, the connecting means is made of sound insulating material.
In a second aspect, an embodiment of the present application provides a system for testing recording quality of an earphone, including the apparatus, the earphone, and the recording device described in any one of the first aspects.
Preferably, the sound playing port of the earphone is a cylindrical sound playing port matched with the first opening, and the cylindrical sound playing port is embedded into the first opening.
Preferably, the sound collection port of the recording device is a cylindrical sound collection port matched with the second opening, and the cylindrical sound collection port is embedded into the second opening.
Adopt the technical scheme that this application embodiment provided, through connecting device with the sound of earphone broadcast mouth and recording equipment gather mouthful intercommunication, the audio frequency of sound broadcast mouth broadcast is transmitted to sound collection mouth by relative inclosed audio transmission channel, effectively promotes the recording quality, reduces external environment noise interference, reduces the restriction of test scene.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a system for testing recording quality of an earphone according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram illustrating comparison results between a standard audio and a test audio provided in an embodiment of the present application;
FIG. 3 is a schematic diagram illustrating a comparison result between standard audio and test audio provided in an embodiment of the present application;
the symbols in the figures are represented as: 1-earphone, 2-sound playing port, 3-connecting device, 4-sound collecting port and 5-recording equipment.
Detailed Description
For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.
It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of associative relationship that describes an associated object, meaning that three types of relationships may exist, e.g., A and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In order to facilitate a better understanding of the technical solutions of the present application for those skilled in the art, the technical terms related to the present application will be described first.
GSM speech Quality [ Rx Quality0-5 sample points/total sample points ] [ MOS in the Rx Quality0-5 scale ratio range is greater than or equal to 2.8 sample points/total sample points ].
Rx Quality (Received Signal Quality) reflects the bit error rate of the Signal reception Quality. For example, Rx Quality ═ 3 (error rate: 0.8% to 1.6%), and Rx Quality ═ 4 (error rate: 1.6% to 3.2%).
MOS (Mean Opinion Score). In international standards, MOS values are used uniformly to evaluate the quality of compressed speech received by a system. The score range is 1 to 5 points:
(1)5 (excellent), no distortion is perceived;
(2)4 (good), just noticeable distortion, but not annoying;
(3)3 (middle), the distortion is perceived and is slightly annoying;
(4)2 (bad), unpleasant, but not objectionable;
(5)1 (inferior), extremely unpleasant and objectionable.
In the related art, in the test of the recording quality of the earphone, a microphone is aligned to be tightly attached to an earphone receiver, the earphone receiver sends out test audio, the microphone collects the test audio, the standard test audio and the test audio collected by the microphone are compared, and the recording quality of the earphone is further judged. The quality of the recorded sound is generally affected by the following aspects: the accuracy of artificially connecting the earphone receiver and the microphone is not high, the earphone receiver and the microphone can be disconnected due to artificial touch or environment, and external sound interferes with recording.
Therefore, the earphone recording quality test is usually performed in a quiet professional laboratory, and is not interfered by external environment noise when the microphone is used for audio sampling of the earphone. However, the scheme has high environmental requirements, and the test scene is limited.
Based on this, this application embodiment provides an earphone recording quality testing arrangement, establishes the audio transmission passageway between earphone and the recording equipment through the device, effectively promotes the recording quality, reduces external environment noise interference, reduces the restriction of test scene. The details will be described below.
Referring to fig. 1, a schematic structural diagram of a system for testing recording quality of an earphone according to an embodiment of the present application is provided. As shown in fig. 1, the system comprises an earphone 1, a connecting device 3 and a recording apparatus 5.
In this embodiment, the connecting device 3 is a circular tube, the circular tube is a through hole, i.e., an audio transmission channel, a first opening of the audio transmission channel is used for connecting the earphone 1, a second opening of the audio transmission channel is used for connecting the recording device 5, and the audio transmission channel is used for transmitting the audio played by the earphone 1 to the recording device 5.
Typically, the headphone 1 comprises a vibration zone and a sound playback opening 2. In an optional embodiment, the sound playing port 2 of the earphone 1 is a cylindrical sound playing port 2 matched with the first opening, and the sound collecting port 4 of the recording device 5 is a cylindrical sound collecting port 4 matched with the second opening. When a recording test is performed, the cylindrical sound playing port 2 is fitted into the first opening of the connection device 3, and the cylindrical sound collecting port 4 is fitted into the second opening of the connection device 3. At this time, the earphone 1 plays the test audio, and the test audio is transmitted to the recording device 5 through the audio transmission channel.
It will be appreciated that in order to avoid noise interference in the external environment as much as possible, the audio transmission channel should be kept in a relatively sealed state after the earphone 1 and the recording apparatus 5 are connected by the connecting device 3, and therefore, the first opening of the connecting device 3 and the sound playing port 2 of the earphone 1 should be matched to ensure a tight fit therebetween. Similarly, the second opening of the connecting device 3 and the sound collection opening 4 of the recording apparatus 5 should be matched to ensure that they are tightly fitted.
In an alternative embodiment, the connecting means 3 is preferably a sound-insulating material in order to further avoid noise interference in the environment.
It should be noted that fig. 1 is only one possible implementation manner listed in the present application, and should not be taken as a limitation to the scope of the present application. For example, the connecting device 3 may have other shapes such as a square tube shape, in addition to a circular tube shape. It will be appreciated that when the connecting means 3 is in the form of a square tube, the sound playing port 2 of the earphone 1 and the sound collecting port 4 of the recording apparatus 5 should be in the form of matching squares.
Referring to fig. 2, a schematic diagram of a comparison result between a standard audio and a test audio provided in an embodiment of the present application is shown. In the figure, the connection device shown in fig. 1 is not used when the test audio is collected, wherein the upper graph in fig. 2 is the standard audio, the lower graph is the test audio, the abscissa Time in the figure represents Time, and the ordinate Amplitude represents Amplitude. Comparing the upper and lower two drawings in fig. 2, it can be clearly seen that more noise is introduced into the test audio and the waveform is unstable.
Referring to fig. 3, a schematic diagram of a comparison result between another standard audio and a test audio is provided in the embodiment of the present application. In the figure, the connection device shown in fig. 1 is used for acquiring the test audio, wherein the upper graph in fig. 3 is the standard audio, the lower graph is the test audio, the abscissa Time in the figure represents Time, and the ordinate Amplitude represents Amplitude. Comparing the upper and lower two drawings in fig. 3, it can be clearly seen that the waveform in the test audio is stable.
In addition, the following table I is the actually measured MOS value without using the connecting device, the table II is the actually measured MOS value using the connecting device, the table I and the table II are compared, the MOS value in the table II is obviously improved compared with the table I, and the recording quality can be effectively improved after the connecting device is adopted.
Table one:
| filename | Starting time | End time | Sampling rate | Duration of file(s) | MOS score |
| |
17:21:48 | 17:21:56 | 8000 | 8 | 2.579 |
| |
17:22:00 | 17:22:08 | 8000 | 8 | 2.546 |
| |
17:22:11 | 17:22:19 | 8000 | 8 | 2.554 |
| |
17:22:22 | 17:22:30 | 8000 | 8 | 2.531 |
| |
17:22:34 | 17:22:42 | 8000 | 8 | 2.607 |
Table two:
| filename | Starting time | End time | Sampling rate | Duration of file(s) | MOS score |
| |
17:21:48 | 17:21:56 | 8000 | 8 | 3.407 |
| |
17:22:00 | 17:22:08 | 8000 | 8 | 3.852 |
| |
17:22:11 | 17:22:19 | 8000 | 8 | 3.835 |
| |
17:22:22 | 17:22:30 | 8000 | 8 | 3.965 |
| |
17:22:34 | 17:22:42 | 8000 | 8 | 3.866 |
Adopt the technical scheme that this application embodiment provided, through connecting device with the sound of earphone broadcast mouth and recording equipment gather mouthful intercommunication, the audio frequency of sound broadcast mouth broadcast is transmitted to sound collection mouth by relative inclosed audio transmission channel, effectively promotes the recording quality, reduces external environment noise interference, reduces the restriction of test scene.
In the embodiments of the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, and means that there may be three relationships, for example, a and/or B, and may mean that a exists alone, a and B exist simultaneously, and B exists alone. Wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" and similar expressions refer to any combination of these items, including any combination of singular or plural items. For example, at least one of a, b, and c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.
Those of ordinary skill in the art will appreciate that the various elements and algorithm steps described in connection with the embodiments disclosed herein can be implemented as electronic hardware, computer software, or combinations of electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The above description is only for the specific embodiments of the present application, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered by the protection scope of the present application. The protection scope of the present application shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides an earphone recording quality testing arrangement, its characterized in that, includes connecting device, connecting device includes hollow audio transmission passageway, audio transmission passageway's first opening is used for connecting the earphone, audio transmission passageway's second opening is used for connecting recording equipment, audio transmission passageway be used for with the audio frequency transmission of earphone broadcast extremely recording equipment.
2. The device of claim 1, wherein the first opening matches a sound playing port of the headset; the second opening is matched with a sound collection port of the recording device.
3. The device of claim 2, wherein the connecting means is tubular and the first and second openings are circular.
4. The device of claim 1, wherein the connecting means is a sound insulating material.
5. A headset recording quality testing system, characterized in that it comprises the device of any one of claims 1-4, a headset and a recording apparatus.
6. The system of claim 5, wherein the sound playing port of the earphone is a cylindrical sound playing port matched with the first opening, and the cylindrical sound playing port is used for being embedded into the first opening.
7. The system of claim 5, wherein the sound collection port of the sound recording device is a cylindrical sound collection port matching the second opening, the cylindrical sound collection port being configured to fit into the second opening.
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| US20140146973A1 (en) * | 2012-07-18 | 2014-05-29 | Goertek Inc. | Test Device And Test Method For Active Noise Reduction Headphone |
| CN104105048A (en) * | 2014-07-17 | 2014-10-15 | 福建星网视易信息***有限公司 | Detecting system, device and method for audio test of electronic device |
| CN206024115U (en) * | 2016-09-19 | 2017-03-15 | 深圳市兴戈科技有限公司 | The Play System of closed loop feedback self-adjusting audio output characteristics |
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- 2021-03-12 CN CN202110304820.XA patent/CN113068108A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101063641A (en) * | 2006-04-28 | 2007-10-31 | 孙盈军 | Method for testing digital products and special equipment thereof |
| US20140146973A1 (en) * | 2012-07-18 | 2014-05-29 | Goertek Inc. | Test Device And Test Method For Active Noise Reduction Headphone |
| CN104105048A (en) * | 2014-07-17 | 2014-10-15 | 福建星网视易信息***有限公司 | Detecting system, device and method for audio test of electronic device |
| CN206024115U (en) * | 2016-09-19 | 2017-03-15 | 深圳市兴戈科技有限公司 | The Play System of closed loop feedback self-adjusting audio output characteristics |
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