CN110691301A - Method for testing delay time between far-field voice equipment and external loudspeaker - Google Patents
Method for testing delay time between far-field voice equipment and external loudspeaker Download PDFInfo
- Publication number
- CN110691301A CN110691301A CN201910912601.2A CN201910912601A CN110691301A CN 110691301 A CN110691301 A CN 110691301A CN 201910912601 A CN201910912601 A CN 201910912601A CN 110691301 A CN110691301 A CN 110691301A
- Authority
- CN
- China
- Prior art keywords
- control module
- main control
- audio signal
- far
- calibration audio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
Abstract
The invention provides a method for testing delay time between far-field voice equipment and an external loudspeaker, which comprises the following steps: s1: the main control module sends a calibration audio signal to the AMP module, and the time for sending the calibration audio signal is recorded as T1 by the main control module; s2: the calibration audio signal is amplified by the AMP module and then transmitted to the external loudspeaker; s3: the external loudspeaker plays a calibration audio signal, and the microphone records sound played by the external loudspeaker; s4: the microphone transmits the recording to the main control module, the main control module identifies a calibration audio signal in the recording, and when the main control module identifies the calibration audio signal, the main control module records that the time for identifying the calibration audio signal is T2; s5: the master control module calculates the time difference between T2 and T1, and the time difference between T2 and T1 is the delay time between the far-field speech device and the external loudspeaker.
Description
Technical Field
The invention relates to the field of far-field voice equipment, in particular to a method for testing delay time between far-field voice equipment and an external loudspeaker.
Background
When the far-field voice equipment adopts a fixed built-in loudspeaker scheme, the time for the sound emitted by the built-in loudspeaker of the far-field voice equipment to reach the far-field voice equipment is fixed, namely the audio delay in the far-field voice equipment is fixed and unchanged; the problem that when the far-field speech device is connected to other devices with loudspeakers, the time for the sound emitted from the loudspeakers of the other devices to reach the far-field speech device is greatly different from the time for the sound emitted from the built-in loudspeaker of the far-field speech device to reach the far-field speech device; under the condition that the audio delay in far-field voice equipment is fixed and unchanged, when the far-field voice equipment is connected to other equipment with a loudspeaker, the condition that the far-field voice equipment has inaccurate sound pickup can be caused, and the user experience is greatly influenced;
when the far-field speech equipment is connected to other equipment with a loudspeaker, the far-field speech equipment can still pick up sound accurately after being externally connected with other equipment with a loudspeaker only by accurately testing the time of the sound emitted from the loudspeaker of the other equipment reaching the far-field speech equipment, and a method for testing the delay time between the far-field speech equipment and the externally connected loudspeaker is urgently needed at present.
Disclosure of Invention
In order to solve the above problems, the present invention provides a method for testing a delay time between a far-field speech device and an external speaker.
The invention is realized by the following technical scheme:
the invention provides a method for testing delay time between far-field voice equipment and an external loudspeaker, which comprises the steps of testing the delay time between the far-field voice equipment and the external loudspeaker, wherein the far-field voice equipment comprises a main control module, a microphone and an AMP (amplifier) module; the microphone and the AMP module are respectively and electrically connected with the main control module, the external loudspeaker is electrically connected with the main control module, and the method for testing the delay time between the far-field voice device and the external loudspeaker comprises the following steps:
s1: the main control module sends a calibration audio signal to the AMP module, and the time for sending the calibration audio signal is recorded as T1 by the main control module;
s2: the calibration audio signal is amplified by the AMP module and then transmitted to the external loudspeaker;
s3: the external loudspeaker plays a calibration audio signal, and the microphone records sound played by the external loudspeaker;
s4: the microphone transmits the recording to the main control module, the main control module identifies a calibration audio signal in the recording, and when the main control module identifies the calibration audio signal, the main control module records that the time for identifying the calibration audio signal is T2;
s5: the master control module calculates a time difference between T2 and T1, wherein the time difference between T2 and T1 is a delay time between the far-field speech device and the external speaker.
Further, in step S1, the main control module can send a calibration audio signal and other audio files to the AMP module at the same time.
The invention has the beneficial effects that:
the method for testing the delay time between the far-field voice equipment and the external loudspeaker can accurately test the delay time between the far-field voice equipment and the external loudspeaker.
Drawings
Fig. 1 is a schematic connection diagram of the method for testing the delay time between far-field speech equipment and an external speaker according to the present invention.
Detailed Description
In order to more clearly and completely explain the technical scheme of the invention, the invention is further explained with reference to the attached drawings.
Referring to fig. 1, the present invention provides a method for testing a delay time between a far-field speech device and an external speaker, where the method for testing a delay time between a far-field speech device and an external speaker includes a far-field speech device 10 and an external speaker 20, and the far-field speech device 10 includes a main control module 11, a microphone 12, and an AMP module 13; the microphone 12 and the AMP module 13 are respectively electrically connected to the main control module 11, the external speaker 20 is electrically connected to the main control module 11, and the method for testing the delay time between the far-field speech device and the external speaker includes the following steps:
s1: the main control module 11 sends a calibration audio signal to the AMP module 13, and the time for sending the calibration audio signal recorded by the main control module 11 is T1;
s2: the calibration audio signal is amplified by the AMP module 13 and then transmitted to the external speaker 20;
s3: the external speaker 20 plays a calibration audio signal, and the microphone 12 records the sound played by the external speaker 20;
s4: the microphone 12 transmits the recording to the main control module 11, the main control module 11 identifies a calibration audio signal in the recording, and when the main control module 11 identifies the calibration audio signal, the main control module 11 records that the time for identifying the calibration audio signal is T2;
s5: the master control module 11 calculates a time difference between T2 and T1, the time difference between T2 and T1 being a delay time between the far-field speech device 10 and the external speaker 20.
In this embodiment, the main control module 11 is an SOC, and the SOCs are all called: system on Chip, Chip level System; the AMP module 13 is a power amplifier; the main control module 11 sends a calibration audio signal to the AMP module 13, where the calibration audio signal is an audio file with a specific frequency and a specific duration, the frequency of the calibration audio signal may be within an audible range of human ears or exceed an identification range of human ears, and the calibration audio signal may be sent once or many times; the method for testing the delay time between the far-field voice device and the external loudspeaker can accurately test the delay time between the far-field voice device 10 and the external loudspeaker 20.
Further, in step S1, the main control module 11 can send a calibration audio signal and other audio files to the AMP module 13 at the same time.
In this embodiment, the main control module 11 may send a calibration audio signal and other audio files to the AMP module 13 at the same time, and the calibration audio signal and other audio files are amplified by the AMP module 13 and then transmitted to the external speaker 20; the external speaker 20 plays calibration audio signals and other audio files, and the microphone 12 records sound played by the external speaker 20, wherein the recording includes the calibration audio signals and other audio files; the microphone 12 transmits the recording to the main control module 11, and the main control module 11 identifies the calibration audio signal in the recording.
Of course, the present invention may have other embodiments, and based on the embodiments, those skilled in the art can obtain other embodiments without any creative effort, and all of them are within the protection scope of the present invention.
Claims (2)
1. The method for testing the delay time between the far-field voice device and the external loudspeaker is characterized by comprising the far-field voice device and the external loudspeaker, wherein the far-field voice device comprises a main control module, a microphone and an AMP module; the microphone and the AMP module are respectively and electrically connected with the main control module, the external loudspeaker is electrically connected with the main control module, and the method for testing the delay time between the far-field voice device and the external loudspeaker comprises the following steps:
s1: the main control module sends a calibration audio signal to the AMP module, and the time for sending the calibration audio signal is recorded as T1 by the main control module;
s2: the calibration audio signal is amplified by the AMP module and then transmitted to the external loudspeaker;
s3: the external loudspeaker plays a calibration audio signal, and the microphone records sound played by the external loudspeaker;
s4: the microphone transmits the recording to the main control module, the main control module identifies a calibration audio signal in the recording, and when the main control module identifies the calibration audio signal, the main control module records that the time for identifying the calibration audio signal is T2;
s5: the master control module calculates a time difference between T2 and T1, wherein the time difference between T2 and T1 is a delay time between the far-field speech device and the external speaker.
2. The method according to claim 1, wherein in step S1, the main control module is capable of sending calibration audio signals and other audio files to the AMP module simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910912601.2A CN110691301A (en) | 2019-09-25 | 2019-09-25 | Method for testing delay time between far-field voice equipment and external loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910912601.2A CN110691301A (en) | 2019-09-25 | 2019-09-25 | Method for testing delay time between far-field voice equipment and external loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110691301A true CN110691301A (en) | 2020-01-14 |
Family
ID=69110282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910912601.2A Pending CN110691301A (en) | 2019-09-25 | 2019-09-25 | Method for testing delay time between far-field voice equipment and external loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110691301A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1957604A (en) * | 2004-05-27 | 2007-05-02 | 雅马哈株式会社 | Amplifier, correction method for processing time shift and correction system |
| US20100272286A1 (en) * | 2009-04-27 | 2010-10-28 | Bai Mingsian R | Acoustic camera |
| CN102325059A (en) * | 2011-09-09 | 2012-01-18 | 华南理工大学 | Audio frequency end-to-end time delay measurement method of non-intrusive single end acquisition and apparatus thereof |
| CN105355210A (en) * | 2015-10-30 | 2016-02-24 | 百度在线网络技术（北京）有限公司 | Preprocessing method and device for far-field speech recognition |
| CN106210371A (en) * | 2016-08-31 | 2016-12-07 | 广州视源电子科技股份有限公司 | A kind of determination method of echo delay time, device and intelligent meeting equipment |
| CN107454508A (en) * | 2017-08-23 | 2017-12-08 | 深圳创维－Rgb电子有限公司 | The television set and television system of microphone array |
| CN109036430A (en) * | 2018-09-29 | 2018-12-18 | 芜湖星途机器人科技有限公司 | Voice control terminal |
| CN110166882A (en) * | 2018-09-29 | 2019-08-23 | 腾讯科技（深圳）有限公司 | The method of human voice signal is acquired in far field pick up facility and far field pick up facility |
-
2019
- 2019-09-25 CN CN201910912601.2A patent/CN110691301A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1957604A (en) * | 2004-05-27 | 2007-05-02 | 雅马哈株式会社 | Amplifier, correction method for processing time shift and correction system |
| US20100272286A1 (en) * | 2009-04-27 | 2010-10-28 | Bai Mingsian R | Acoustic camera |
| CN102325059A (en) * | 2011-09-09 | 2012-01-18 | 华南理工大学 | Audio frequency end-to-end time delay measurement method of non-intrusive single end acquisition and apparatus thereof |
| CN105355210A (en) * | 2015-10-30 | 2016-02-24 | 百度在线网络技术（北京）有限公司 | Preprocessing method and device for far-field speech recognition |
| CN106210371A (en) * | 2016-08-31 | 2016-12-07 | 广州视源电子科技股份有限公司 | A kind of determination method of echo delay time, device and intelligent meeting equipment |
| CN107454508A (en) * | 2017-08-23 | 2017-12-08 | 深圳创维－Rgb电子有限公司 | The television set and television system of microphone array |
| CN109036430A (en) * | 2018-09-29 | 2018-12-18 | 芜湖星途机器人科技有限公司 | Voice control terminal |
| CN110166882A (en) * | 2018-09-29 | 2019-08-23 | 腾讯科技（深圳）有限公司 | The method of human voice signal is acquired in far field pick up facility and far field pick up facility |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10277750B2 (en) | Method and system for improving echo in hands-free call of mobile terminal | |
| US20110301729A1 (en) | Sound system and a method for providing sound | |
| CN103179495A (en) | Audio test method and system for earphone microphone and receiver of mobile terminal | |
| CN111065035B (en) | Bone conduction earphone testing method and testing system | |
| CN109498030B (en) | Free sound field hearing test system and method | |
| CN108347686A (en) | Audio testing method, device, smart machine and storage medium | |
| CN104604254A (en) | Audio processing device, method, and program | |
| CN103179496A (en) | Audio test method and system for earphone microphone and receiver of mobile terminal | |
| DK2744225T3 (en) | Hearing device and method for identifying an output transducer for a hearing aid | |
| CN112929807B (en) | Method, system, test terminal and storage medium for automatically correcting filter coefficients | |
| CN110213707A (en) | Earphone and its hearing-aid method, computer readable storage medium | |
| CN111526467A (en) | Acoustic listening area mapping and frequency correction | |
| AU2020402822A1 (en) | User hearing protection method, apparatus, and electronic device | |
| CN110858950A (en) | Sound equipment testing method, sound equipment testing equipment and sound equipment | |
| US10070221B1 (en) | Signal processing system and a method | |
| CN108235215B (en) | Wire control earphone testing device and testing circuit thereof | |
| CN103559878A (en) | Method for eliminating noise in audio information and device thereof | |
| CN110691301A (en) | Method for testing delay time between far-field voice equipment and external loudspeaker | |
| US20230179904A1 (en) | Wireless earphone, mobile phone and sonic ranging method | |
| CN108810745B (en) | Howling test method, howling test system and related device | |
| CN103825995B (en) | Mobile electronic device and method for controlling volume thereof | |
| CN112995882B (en) | Intelligent equipment audio open loop test method | |
| CN213693982U (en) | Audio-video system | |
| CN102576560A (en) | Electronic audio device | |
| CN213186560U (en) | Audio test system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200114 |
|
| RJ01 | Rejection of invention patent application after publication |