CN102196077A - Real-time audio calibration method - Google Patents
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Abstract
The invention provides a real-time audio calibration method. A real-time audio calibration program is performed on a third-generation (3G) handheld mobile device by utilizing an electronic device and a testing instrument. In the whole process of the audio calibration program, audio parameters are written into a memory by utilizing a central microprocessor, and are directly read by an audio processor to perform an audio test, so that the testing instrument and the 3G handheld mobile device are connected without being restarted and re-executing communication to further increase the speed of the audio calibration program.
Description
Technical Field
The present invention relates to a real-time audio calibration method, and more particularly, to a method for performing audio calibration without restarting a mobile device.
Background
With the continuous development and the increasing maturity of 3G wireless communication technologies, such as a Time Division-synchronous Code Division Multiple Access (TD-SCDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, and a Code Division Multiple Access 2000 (CDMA 2000) system, users of the 3G mobile communication system are increasing, and correspondingly, the throughput of the 3G handheld mobile device is also increasing.
However, 3G handheld mobile devices must undergo various calibrations during the manufacturing process, including antenna calibration, rf calibration, and audio calibration. Among them, the procedure of audio calibration is the most inconvenient, resulting in the worst calibration efficiency.
In the conventional technique, an operator must first put the 3G handheld mobile device to be tested into a test container and input a predetermined audio parameter to set the electrical parameter of the 3G handheld mobile device to be tested; then, the 3G hand-held mobile device to be tested is in communication connection with a test instrument; then, a test instrument is used for carrying out a series of voice tests on the 3G handheld mobile device to be tested; after the test is finished, obtaining a voice test result through the test instrument; the electronic device is operated by the voice test result to modify some corresponding predetermined audio parameters of the 3G handheld mobile device.
Then, the operator needs to take out the 3G handheld mobile device to be tested from the test container, and restart the 3G handheld mobile device to enable the 3G handheld mobile device to execute new parameter setting again; after restarting, putting the 3G handheld mobile device into the test container again, and performing communication connection with the test instrument again; and then, the voice test is carried out again until the voice test result meets the standard.
However, the step of restarting the 3G handheld mobile device to re-execute the new parameter setting usually takes up a large portion of the time of the audio calibration procedure, and the step of putting the 3G handheld mobile device into the test container again usually results in error audio calibration due to deviation from the standard placement position and angle caused by the carelessness of the operator, which results in reduced efficiency. Therefore, how to improve the speed and efficiency of audio calibration is a very important issue.
In this situation, there is a need to develop a new real-time audio calibration method to solve the above problems simultaneously.
Disclosure of Invention
The technical problems and purposes to be solved by the present invention are:
in view of the fact that it takes a lot of time to restart the 3G handheld mobile device to re-execute the new parameter setting in the prior art, and the audio calibration efficiency is often reduced due to the carelessness of the operator when the 3G handheld mobile device is placed in the test container again.
Therefore, the present invention is directed to a real-time audio calibration method, which utilizes an electronic device and a test instrument to perform a real-time audio calibration procedure on a 3G handheld mobile device. When the voice test result does not meet the standard, the 3G handheld mobile device does not need to be taken out from the test container, the electrical parameter setting can be directly carried out on the 3G handheld mobile device again through the electronic device, after the electrical parameter setting is finished, the electrical parameter setting can be directly read by the microprocessor, the voice test can be directly carried out, and therefore the 3G handheld mobile device does not need to be restarted. Thus, the above problems can be effectively solved.
The technical means for solving the problems of the invention are as follows:
the present invention provides a real-time audio calibration method for an electronic device and a test instrument to perform an audio calibration procedure on a Third Generation (3G) (hereinafter referred to as 3G) handheld mobile device, and the real-time audio calibration method comprises the following steps:
(a) transmitting at least one preset audio parameter from the electronic device to the 3G handheld mobile device, and setting the 3G handheld mobile device according to the preset audio parameter;
(b) making the testing instrument and the 3G handheld mobile device perform a communication connection;
(c) making the testing instrument and the 3G handheld mobile device perform a voice test;
(d) after the voice test is finished, the test instrument transmits a result parameter to the electronic device, so that the electronic device calculates a corrected audio parameter according to the result parameter;
(e) when the result parameter does not meet at least one target parameter corresponding to the result parameter, transmitting the corrected audio parameter to the 3G handheld mobile device, setting the 3G handheld mobile device according to the corrected audio parameter, and enabling the 3G handheld mobile device to directly read the corrected parameter setting; and
(f) repeating steps (c) to (e) at least once.
Compared with the prior art, the invention has the advantages that:
in the real-time audio calibration method disclosed by the invention, the electronic device directly resets the electrical parameters of the 3G handheld mobile device, and after the electrical parameters are set, the microprocessor directly reads the reset electrical parameters, so that the voice test can be directly carried out without restarting the 3G handheld mobile device in the prior art, and the defects of deviation of the placement position and the angle and the like caused by the prior art can be avoided. Obviously, the real-time audio calibration method disclosed by the invention can accurately and quickly complete the audio calibration procedure only by using the test instrument without complicated manual operation procedures, thereby improving the speed and efficiency of audio calibration. Thereby effectively solving the problems.
Drawings
The various aspects of the present invention will become more apparent to the reader after reading the detailed description of the invention with reference to the attached drawings. Wherein,
FIG. 1 shows a system architecture diagram of a preferred embodiment of the present invention;
FIG. 2 shows a system block diagram of a preferred embodiment of the present invention; and
fig. 3 shows a flow chart of a method of a preferred embodiment of the present invention.
[ description of main element symbols ]
1: audio calibration system 11: electronic device
111: the audio calibration program 12: testing instrument
13: 3G handheld mobile device 131: central microprocessor
132: the memory 133: audio processor
14: test container S1: predetermined audio parameters
S2: connection signal S3: test signal
S4: result parameter S5: modifying audio parameters
S100 to S170: step (ii) of
Detailed Description
The real-time audio calibration method provided by the invention can be widely applied to calibrating audio parameters of various systems, and related combination implementation modes are not enumerated enough, so that the detailed description is omitted, and only one preferred embodiment is listed for specific description.
Referring to fig. 1 and 2, fig. 1 is a system architecture diagram of a preferred embodiment of the present invention, and fig. 2 is a system block diagram of the preferred embodiment of the present invention. An audio calibration system 1 may include an electronic device 11, a test instrument 12, a 3G handheld mobile device 13, and a test container 14. The electronic device 11 is electrically connected to the test instrument 12, the electronic device 11 can also be in communication with the 3G handheld mobile device 13, and the electronic device 11 can include an audio calibration program 111, where the audio calibration program 111 is used to calculate and generate related audio setting parameters. The electronic device may be a computer.
In addition, the testing instrument 12 can be connected to the 3G handheld mobile device 13 in a communication manner, wherein the 3G handheld mobile device 13 can be applied to a TD-SCDMA system, a WCDMA system or a CDMA2000 system; in addition, the 3G handheld mobile device 13 further includes a central microprocessor 131, a memory 132 and an audio processor 133.
The central microprocessor 131 is electrically connected to the memory 132 and an audio processor 133, and the memory 132 is electrically connected to the audio processor 133. The microprocessor 131 may be an Advanced RISC Machine (ARM), the memory 132 may be a Non-Volatile Random access memory (NVRAM), and the audio Processor 133 may be a Digital Signal Processor (DSP). The 3G handheld mobile device can be placed in the test container 14 to prevent interference from the external environment.
In the preferred embodiment of the present invention, the electronic device 11 and the test instrument 12 are used to perform a real-time audio calibration procedure on the 3G handheld mobile device 13.
In the real-time audio calibration method disclosed in the present invention, an operator (not shown) puts the 3G handheld mobile device 13 into the test container 14, operates the electronic device 11, and transmits a predetermined audio parameter S1 to the 3G handheld mobile device 13 according to an audio calibration procedure via wireless communication or wired communication via the electronic device 11. The predetermined audio parameter S1 may include a predetermined equalizer parameter, a predetermined digital-to-analog gain parameter, a predetermined audio gain parameter, a predetermined sounding gain parameter, an Echo suppression (Echo Filter) parameter, and a predetermined Pulse-Code Modulation Filter (PCM Filter) parameter. The predetermined audio parameter S1 is conventional and will not be described herein.
After the 3G handheld mobile device 13 receives the predetermined audio parameter S1, the central microprocessor 131 adjusts the audio parameter of the memory 132 according to the predetermined audio parameter S1. After the adjustment is completed, the audio processor 133 directly reads the audio parameters of the memory 132. For example, after the central microprocessor 131 adjusts the audio parameters recorded in the memory 132 according to the predetermined audio parameters S1, the audio processor 133 directly reads the audio parameters recorded in the memory 132 to set the electrical parameters corresponding to an equalizer unit, an audio gain unit, an echo suppression unit, a pcm unit and a filter unit of the 3G handheld mobile device 13. The electrical parameter may be a coding rate, a frequency, an impedance, a power, or a bandwidth.
Then, the testing instrument 12 transmits a connection signal S2 to the 3G handheld mobile device; or the 3G handheld mobile device transmits a connection signal S2 to the test instrument 12, so that the test instrument 12 and the 3G handheld mobile device 13 perform a communication connection. Wherein, the testing instrument 12 can be emulated as a 3G base station or a 3G mobile device and is connected to the 3G handheld mobile device 13 for communication. The communication connection is well known in the art and thus will not be described herein.
After the testing instrument 12 and the 3G handheld mobile device 13 complete the communication connection, the testing instrument 12 transmits a testing signal S3 to the 3G handheld mobile device 13; or the 3G handheld mobile device 13 transmits the test signal S3 to the test instrument 12, so that the test instrument 12 and the 3G handheld mobile device 13 perform a voice test. The voice test may include a Sound Quality and fidelity (Sound Quality and Naturalness) test, a voice Characteristics (Speech Characteristics) test, a Listening and speaking (Listening and speaking) test, a Conversation (Conversation) test, a Double Talk Performance (Double Talk Performance) test, and a Background Noise Transmission (Transmission of Background Noise) test. The voice test is a conventional technique, and therefore, it is not described herein.
After completing the voice test, the testing apparatus 12 may transmit a result parameter S4 to the electronic device 11 according to the voice test. The result parameter S4 may include a transmit Loudness evaluation value (SLR), a receive Loudness evaluation value (RLR), a Side Tone masking evaluation value (STMA), a Stability Balance Loss (SBRL) evaluation value, an Echo Balance Loss (EBRL) evaluation value, a transmit Distortion evaluation value, a receive Distortion evaluation value, an idle channel noise evaluation value, a frequency response evaluation value of a transmit sensitivity, and a frequency response evaluation value of a receive sensitivity. The result parameter S4 is conventional, and therefore not described in detail herein.
After receiving the result parameters S4, the electronic device 11 performs calculation and derivation through the audio calibration program 111 according to the result parameters to generate a modified audio parameter S5. The modified audio parameter S5 may include a modified equalizer parameter, a modified digital-to-analog gain parameter, a modified audio gain parameter, a modified sounding gain parameter, an Echo suppression (Echo Filter) parameter, and a modified Pulse-Code Modulation Filter (PCMFilter) parameter. In addition, the calculation and derivation performed by the audio calibration procedure 111 according to the result parameter S4 are well known in the art, and therefore, are not described in detail herein.
Finally, the electronic device 11 compares the result parameter S4 with the corresponding target parameter, and when any evaluation value included in the result parameter S4 does not satisfy the corresponding target evaluation value, the electronic device 11 transmits the modified audio parameter S5 to the 3G handheld mobile device 13 in real time.
After the 3G handheld mobile device 13 receives the modified audio parameters S5, the central microprocessor 131 can adjust the predetermined audio parameters S1 recorded in the memory 132 again according to the modified audio parameters S5. After the adjustment is completed, the audio processor 133 can also directly read the audio parameters of the memory 132 and directly perform the voice test.
For example, after the testing instrument 12 and the 3G handheld mobile device 13 complete the voice test, the communication connection is still maintained, and the 3G handheld mobile device 13 is still placed in the testing container. Therefore, when any of the evaluation values included in the result parameter S4 received by the electronic device 11 does not satisfy the corresponding target evaluation value, the electronic device 11 will transmit the modified audio parameter S5 to the 3G handheld mobile device 13 in real time, so that the central microprocessor 131 performs adjustment again in the memory 132 according to the modified audio parameter S5, and then the audio processor 133 directly reads the audio parameter recorded in the memory 132, thereby resetting the electrical parameters corresponding to the equalizer unit, the audio gain unit, the echo suppression unit, the pulse code modulation unit, and the filter unit of the 3G handheld mobile device 13. The voice test is then performed directly.
Therefore, the testing apparatus 12 and the 3G handheld mobile device 13 do not need to be restarted and perform communication connection, thereby greatly saving the time of the audio calibration procedure. Generally, the time taken to restart and connect the test instrument 12 and the 3G handheld mobile device 13 occupies about 60% of the time of one audio calibration procedure, and thus, the audio calibration procedure time can be reduced by 70% at most.
Otherwise, when all the evaluation values included in the result parameter S4 satisfy their corresponding target evaluation values, the audio calibration procedure is completed and the communication connection between the test instrument 12 and the 3G handheld mobile device 13 is interrupted.
In the preferred embodiment, as long as any evaluation value included in the result parameter S4 does not satisfy its corresponding target evaluation value, the electronic device 13 transmits the modified audio parameter S5 to the 3G handheld mobile device 13, and the central microprocessor 131 can adjust the audio parameter recorded in the memory 132 again according to the modified audio parameter S5, and then the audio processor 132 can read the audio parameter recorded in the memory 132 again, so as to reset the electrical parameters corresponding to the equalizer unit, the audio gain unit, the echo suppression unit, the pulse code modulation unit, and the filter unit of the 3G handheld mobile device 13 again. The voice test is repeated until all the evaluation values included in the result parameter S4 satisfy the corresponding target evaluation value.
Referring to fig. 3, in order to further promote the technology disclosed in the present invention, the technology disclosed in the preferred embodiment of the present invention is further summarized as a simple flowchart below, so that it is easier for a person skilled in the art to remember. The following component references are made with reference to FIG. 2.
A predetermined audio parameter S1 is transmitted from the electronic device 11 to the 3G handheld mobile device 13, and an electrical parameter of the 3G handheld mobile device 13 is set (step S100).
The testing apparatus 12 is communicatively connected to the 3G handheld mobile device 13 (step S110)
The testing apparatus 12 and the 3G handheld mobile device 13 are enabled to perform a voice test (step S120).
After the voice test is completed, the test instrument 12 transmits the result parameter S4 to the electronic device 11 (step S130).
The electronic device 11 calculates a modified audio parameter S5 according to the result parameter S4 (step S140).
It is determined whether the result parameter S4 satisfies the corresponding target parameter (step S150).
When the result parameter S4 does not satisfy at least one target parameter corresponding to the result parameter S4, the modified audio parameter S5 is transmitted to the 3G handheld mobile device 13 in real time, and at least one electrical parameter of the 3G handheld mobile device 13 is directly reset (step S160).
When the resulting parameter S4 satisfies the corresponding target parameter, the audio calibration procedure is completed and the communication connection is interrupted (step S170).
In the real-time audio calibration method disclosed by the invention, the electronic device directly resets the electrical parameters of the 3G handheld mobile device, and after the electrical parameters are set, the microprocessor directly reads the reset electrical parameters, so that the voice test can be directly carried out without restarting the 3G handheld mobile device in the prior art, and the defects of deviation of the placement position and the angle and the like caused by the prior art can be avoided. Obviously, the real-time audio calibration method disclosed by the embodiment of the invention can accurately and quickly complete the audio calibration procedure only by using the test instrument without complicated manual operation procedures, thereby improving the speed and efficiency of audio calibration. Thereby effectively solving the problems.
Hereinbefore, specific embodiments of the present invention are described with reference to the drawings. However, those skilled in the art will appreciate that various modifications and substitutions can be made to the specific embodiments of the present invention without departing from the spirit and scope of the invention. Such modifications and substitutions are intended to be included within the scope of the present invention as defined by the appended claims.
Claims (10)
1. A real-time audio calibration method for an electronic device and a test instrument to perform an audio calibration procedure on a Third Generation (3G) handheld mobile device, the real-time audio calibration method comprising:
(a) transmitting at least one preset audio parameter from the electronic device to the 3G handheld mobile device, and setting the 3G handheld mobile device according to the preset audio parameter;
(b) making the testing instrument and the 3G handheld mobile device perform a communication connection;
(c) making the testing instrument and the 3G handheld mobile device perform a voice test;
(d) after the voice test is finished, the test instrument transmits a result parameter to the electronic device, so that the electronic device calculates a corrected audio parameter according to the result parameter;
(e) when the result parameter does not meet at least one target parameter corresponding to the result parameter, transmitting the corrected audio parameter to the 3G handheld mobile device, setting the 3G handheld mobile device according to the corrected audio parameter, and enabling the 3G handheld mobile device to directly read the corrected parameter setting; and
(f) repeating steps (c) to (e) at least once.
2. The method of claim 1, wherein the 3G handheld mobile device is adapted for use in a time Division-Synchronous Code Division Multiple Access (TD-SCDMA) system.
3. The method of claim 1, wherein in step (a), the central microprocessor of the 3G handheld mobile device adjusts at least one audio parameter of the memory of the 3G handheld mobile device according to the predetermined audio parameter.
4. The method of claim 3, wherein an audio processor of the 3G handheld mobile device reads at least one audio parameter of the memory.
5. The method of claim 1, wherein in step (e), the central microprocessor of the 3G handheld mobile device adjusts at least one audio parameter of the memory of the 3G handheld mobile device according to the modified audio parameter.
6. The method of claim 5, wherein an audio processor of the 3G handheld mobile device reads at least one audio parameter of the memory.
7. The method of claim 1, wherein the step (e) further comprises a step (e1) of completing the audio calibration procedure and interrupting the communication connection when the result parameter satisfies the target parameter.
8. The method of claim 1, wherein the electronic device is a computer.
9. The method of claim 4, wherein the central microprocessor is an Advanced reduced instruction set Machine (ARM), the Memory is a Non-Volatile random access Memory (NVRAM), and the audio processor is a Digital Signal Processor (DSP)
10. The method of claim 6, wherein the central microprocessor is an advanced risc machine, the memory is a non-volatile random access memory, and the audio processor is a digital signal processor.
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| WO2017215629A1 (en) * | 2016-06-16 | 2017-12-21 | 广东欧珀移动通信有限公司 | Sound effect configuration method and related device |
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Application publication date: 20110921 |