CN100552640C - The method of distinction of audio input port - Google Patents
The method of distinction of audio input port Download PDFInfo
- Publication number
- CN100552640C CN100552640C CNB2008100349089A CN200810034908A CN100552640C CN 100552640 C CN100552640 C CN 100552640C CN B2008100349089 A CNB2008100349089 A CN B2008100349089A CN 200810034908 A CN200810034908 A CN 200810034908A CN 100552640 C CN100552640 C CN 100552640C
- Authority
- CN
- China
- Prior art keywords
- audio
- homophase
- audio file
- difference
- input port
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000005236 sound signal Effects 0.000 claims abstract description 44
- 238000012360 testing method Methods 0.000 claims abstract description 23
- 238000012956 testing procedure Methods 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Landscapes
- Circuit For Audible Band Transducer (AREA)
Abstract
The present invention has disclosed a kind of method of distinction of audio input port, comprises the steps: steps A, makes a difference audio file and a homophase audio file, and described difference audio file and homophase audio file are synthesized a mixed audio file; Step B, above-mentioned mixed audio file is placed in the playing device plays, and the output line of described playing device is connected the audio input port that needs test; The audio frequency of the output of audio input port described in step C, the testing procedure B, if output audio is the difference audio frequency, then this tested test port is the balanced type port; Otherwise if output audio is the homophase audio frequency, then this tested test port is the unbalanced port.The present invention effectively differentiates the character of audio input port by the mixed signal of utilizing difference sound signal and homophase sound signal to form, can promptly solve test problem, and this method is convenient and swift, simple.
Description
Technical field
The invention belongs to the audio frequency and video field, relate to a kind of method of distinguishing audio port, relate in particular to a kind of method of distinguishing audio balance formula input port and unbalanced input port.
Background technology
Present audio input port input signal is handled balance and nonequilibrium dual mode.When these two kinds of ports are distinguished in test, effective method also do not occurred and can promptly solve test problem.
Summary of the invention
Technical matters to be solved by this invention is: it is the method for balanced type input port or unbalanced input port that a kind of effectively distinction of audio input port is provided.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of method of distinction of audio input port comprises the steps:
Steps A, making one difference audio file and a homophase audio file synthesize a mixed audio file to described difference audio file and homophase audio file;
Step B, above-mentioned mixed audio file is placed in the playing device plays, and the output line of described playing device is connected the audio input port that needs test;
The audio frequency of the output of audio input port described in step C, the testing procedure B, if output audio is the difference audio frequency, then this tested test port is the balanced type port; Otherwise if output audio is the homophase audio frequency, then this tested test port is the unbalanced port.
As a preferred embodiment of the present invention, the method for making the difference audio file in the described steps A is: the content according to recording is a difference, makes the audio file that becomes mirror up and down.
As a preferred embodiment of the present invention, the method for making the homophase audio file in the described steps A is: the content according to recording is a homophase, makes the identical audio file of waveform up and down.
As a preferred embodiment of the present invention, make in the described steps A difference audio file, and the step of homophase audio file on computer equipment, finish.
As a preferred embodiment of the present invention, the step of combined hybrid audio file is finished on computer equipment in the described steps A.
As a preferred embodiment of the present invention, the playing device among the described step B be install on MP3 player or MP4 player or the computer equipment can displaying audio file software systems.
Another technical scheme of the present invention is:
A kind of method of distinction of audio input port comprises the steps:
Steps A ', generate a difference sound signal and a homophase sound signal, described difference sound signal and homophase sound signal are synthesized a mixed audio signal;
Step B ', above-mentioned mixed audio signal is inputed to a signal input apparatus, and the output line of described signal input apparatus is connected the audio input port that needs test;
The sound signal of the output of audio input port described in step C ', the testing procedure B ', if output audio signal is the difference sound signal, then this tested audio input port is the balanced type port; Otherwise if output audio signal is the homophase sound signal, then this tested audio input port is the unbalanced port.
Beneficial effect of the present invention is: the present invention effectively differentiates the character of audio input port by the mixed signal of utilizing difference sound signal and homophase sound signal to form, can promptly solve the problem of testing audio input port, this method is convenient and swift, simple.
Description of drawings
Fig. 1 is the process flow diagram of distinction of audio input port method of the present invention.
Fig. 2 is the audio volume control figure of differential signal among the embodiment one.
Fig. 3 is the audio volume control figure of in-phase signal among the embodiment one.
Fig. 4 is the oscillogram of mixed audio among the embodiment one.
Fig. 5 is the synoptic diagram that flows to of differential signal among the embodiment one and in-phase signal.
Embodiment
Describe the preferred embodiments of the present invention in detail below in conjunction with accompanying drawing.
Embodiment one
See also Fig. 1 and Fig. 5, Fig. 1 is the process flow diagram of distinction of audio input port method of the present invention, and Fig. 5 is the synoptic diagram that flows to of differential signal and in-phase signal.The present invention has disclosed a kind of method of distinction of audio input port, comprises the steps:
Steps A 1, making one difference audio file and a homophase audio file; The method of making the difference audio file is: the content according to recording is a difference, makes the audio file that becomes mirror as shown in Figure 2 up and down; Making as shown in Figure 3, the method for homophase audio file is: the content according to recording is a homophase, makes the identical audio file of waveform up and down.This step can be finished on computer equipment.
Steps A 2, described difference audio file and homophase audio file combination mixed audio file as shown in Figure 4; This step can be finished on computer equipment; As, in the recording software that can on PC, be equipped with difference audio file and homophase audio file are synthesized mixed audio file shown in Figure 4.
Step B1, above-mentioned mixed audio file is placed in the playing device plays; This playing device can for install on MP3 player or MP4 player or the computer equipment can displaying audio file software systems.
Step B2, the output line of described playing device is connected the audio input port that needs test.
The audio frequency of the output of audio input port described in step C1, the testing procedure B2; If output audio is the difference audio frequency, then changes step C2, otherwise change step C3.
Step C2, draw testing result: this tested test port is the balanced type port.
Step C3, draw testing result: this tested test port is the unbalanced port.
The present invention effectively differentiates the character of audio input port by the mixed signal of utilizing difference sound signal and homophase sound signal to form, can promptly solve the problem of testing audio input port, and this method is convenient and swift, simple.
Embodiment two
The difference of present embodiment and embodiment one is that in the present embodiment, the method for distinction of audio input port comprises the steps:
Steps A ': generate a difference sound signal and a homophase sound signal, described difference sound signal and homophase sound signal are synthesized a mixed audio signal.
Step B ': above-mentioned mixed audio signal is inputed to a signal input apparatus, and the output line of described signal input apparatus is connected the audio input port that needs test.The effect of described signal input apparatus is that sound signal is inputed to the audio input port that needs test, can be PC, audio playing apparatus etc.
Step C ': the sound signal of the output of audio input port described in the testing procedure B ', if output audio signal is the difference sound signal, then this tested audio input port is the balanced type port; Otherwise if output audio signal is the homophase sound signal, then this tested audio input port is the unbalanced port.
Above embodiment is the unrestricted technical scheme of the present invention in order to explanation only.Any modification or partial replacement that does not break away from spirit and scope of the invention all should be encompassed in the middle of the claim scope of the present invention.
Claims (5)
1, a kind of method of distinction of audio input port is characterized in that, comprises the steps:
Steps A, making one difference audio file and a homophase audio file synthesize a mixed audio file to described difference audio file and homophase audio file; The method of making the difference audio file is: the content according to recording is a difference, makes the audio file that becomes mirror up and down; The method of making the homophase audio file is: the content according to recording is a homophase, makes the identical audio file of waveform up and down;
Step B, above-mentioned mixed audio file is placed in the playing device plays, and the output line of described playing device is connected the audio input port that needs test;
The audio frequency of the output of audio input port described in step C, the testing procedure B, if output audio is the difference audio frequency, then this tested test port is the balanced type port; Otherwise if output audio is the homophase audio frequency, then this tested test port is the unbalanced port.
2, method according to claim 1 is characterized in that: make in the described steps A difference audio file, and the step of homophase audio file on computer equipment, finish.
3, method according to claim 1 is characterized in that: the step of synthetic mixed audio file is finished on computer equipment in the described steps A.
4, according to claim 1 or 2 or 3 described methods, it is characterized in that: the playing device among the described step B be install on MP3 player or MP4 player or the computer equipment can displaying audio file software systems.
5, a kind of method of distinction of audio input port is characterized in that, comprises the steps:
Steps A ', generate a difference sound signal and a homophase sound signal, described difference sound signal and homophase sound signal are synthesized a mixed audio signal; The method of making the difference sound signal is: the content according to recording is a difference, makes the sound signal that becomes mirror up and down; The method of making the homophase sound signal is: the content according to recording is a homophase, makes the identical sound signal of waveform up and down;
Step B ', above-mentioned mixed audio signal is inputed to a signal input apparatus, and the output line of described signal input apparatus is connected the audio input port that needs test;
The sound signal of the output of audio input port described in step C ', the testing procedure B ', if output audio signal is the difference sound signal, then this tested audio input port is the balanced type port; Otherwise if output audio signal is the homophase sound signal, then this tested audio input port is the unbalanced port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100349089A CN100552640C (en) | 2008-03-20 | 2008-03-20 | The method of distinction of audio input port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100349089A CN100552640C (en) | 2008-03-20 | 2008-03-20 | The method of distinction of audio input port |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101256530A CN101256530A (en) | 2008-09-03 |
| CN100552640C true CN100552640C (en) | 2009-10-21 |
Family
ID=39891370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2008100349089A Expired - Fee Related CN100552640C (en) | 2008-03-20 | 2008-03-20 | The method of distinction of audio input port |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100552640C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111432321B (en) * | 2020-03-06 | 2022-04-08 | 五邑大学 | Audio equipment test circuit and test method |
-
2008
- 2008-03-20 CN CNB2008100349089A patent/CN100552640C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101256530A (en) | 2008-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102800339B (en) | Audio-signal processing apparatus and audio signal processing method | |
| CN205862318U (en) | Many sound cards audio output device under a kind of embedded OS and system | |
| CN101729969A (en) | Method and system for testing microphone of electronic device | |
| CN101051456B (en) | Audio frequency phase detecting and automatic correcting device | |
| ATE473605T1 (en) | DEVICE FOR BLENDING SIGNAL FAILURES FOR A MULTI-CHANNEL ARRANGEMENT | |
| CN103631688A (en) | Method and system for testing interface signal | |
| GB2481559A (en) | Jukebox menu navigation system | |
| CN100437506C (en) | Method for detecting audio connection function of audio receiver and computer mainframe board | |
| CN100552640C (en) | The method of distinction of audio input port | |
| US20130234742A1 (en) | Integrated circuit and printed circuit board having receiver testing function | |
| CN103686580B (en) | A kind of multi-path audio output interface automatic test approach and equipment | |
| CN103928021B (en) | A kind of electroacoustic urheen | |
| CN208271081U (en) | A kind of mainboard and computer equipment | |
| CN205647995U (en) | Audio testing system based on treater | |
| CN106303877B (en) | Audio test method and system for Windows tablet computer | |
| CN202075992U (en) | Detection and automatic control device of multimedia sound source signal | |
| CN206835379U (en) | A kind of audio amplifier air leak test device | |
| CN208836415U (en) | A kind of sound press test macro | |
| CN202210008U (en) | Device for detecting diaphragm tensile force | |
| CN204649953U (en) | A kind of automated calibration system of signal generator | |
| CN104640049B (en) | A kind of method and system for distinguishing the earphone for whether supporting speech voice input function | |
| CN106954134A (en) | A kind of Disc player and its digital audio and video signals process circuit | |
| CN207150808U (en) | A kind of voice drive circuit | |
| CN206728202U (en) | A kind of 3D change-over panels for bore hole 3D display screen | |
| CN104376857A (en) | Information processing method and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200433 Shanghai City, Yangpu District National Road No. 335 Patentee after: AVCON INFORMATION TECHNOLOGY Co.,Ltd. Address before: 200433 Shanghai City, Yangpu District National Road No. 335 Patentee before: SHANGHAI AVCON INFORMATION TECHNOLOGY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091021 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |