CN114554354A - Method for automatically switching audio equipment and application thereof - Google Patents
Method for automatically switching audio equipment and application thereof Download PDFInfo
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- CN114554354A CN114554354A CN202210152679.0A CN202210152679A CN114554354A CN 114554354 A CN114554354 A CN 114554354A CN 202210152679 A CN202210152679 A CN 202210152679A CN 114554354 A CN114554354 A CN 114554354A
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- 230000005236 sound signal Effects 0.000 claims abstract description 17
- 230000006870 function Effects 0.000 description 2
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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
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
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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
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
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- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention discloses a method for automatically switching audio equipment and application thereof.A display detects that external audio equipment is changed, and cuts off HPD and a computer end system interrupts signal input to the display; when the external audio equipment is accessed, switching to read the first EDID data; otherwise, switching and reading the second EDID data; the display turns on the HPD again, and the computer system captures EDID data after recognizing the HPD signal; when the first EDID data; the computer end system simultaneously transmits video signals and audio signals, and the display displays the video signals and simultaneously plays the audio signals through external audio equipment; when the second EDID data is the second EDID data, the computer system only transmits the video signal, and the display only displays the video signal. The invention can automatically switch the audio frequency between the computer and the display.
Description
Technical Field
The invention relates to the field of audio playing equipment, in particular to a method for automatically switching audio equipment and application thereof.
Background
At present, the mainstream displays in the market basically have an audio playing function, and can play audio through a loudspeaker in the display, or play audio through an audio output interface of the display and an external audio playing device.
When the display is connected to the computer, the computer end system can capture the EDID in the display and judge whether the computer or the display plays the audio according to whether the EDID carries audio information.
No matter the audio is played through a loudspeaker in the display or is played through an audio playing device externally connected with an audio output port of the display, the EDID of the display must be provided with audio information. When the display is connected to the computer terminal, the computer can capture the EDID information of the display and read the audio information, so that the audio playing equipment is switched to the display terminal.
And for the display without the loudspeaker and only keeping the audio output interface, if the user accesses the display into the computer end, the computer end system can switch the audio playing equipment into the display end. Because the display itself does not have a specific audio playing function, it needs to be played by an external audio playing device. If the user does not connect the audio playing device externally at the moment, the situation of silence can occur. The user needs to manually switch the audio playing device to the computer again, so that the audio can be played normally.
For users with a computer with poor foundation, the user may not know how to operate, which affects the user experience, and even may consider the display to be a failure, which may cause the user to complain.
Disclosure of Invention
The invention aims to provide a method for automatically switching audio equipment and application thereof.
The technical scheme adopted by the invention is as follows:
a method of automatically switching audio devices, comprising the steps of:
step 1, a display detects whether an external audio device changes; if yes, disconnecting the HPD, and executing the step 2 after the computer end system interrupts the signal input to the display; otherwise, executing step 1;
step 2, the display judges whether to access the external audio equipment; if so, the display switches the current memory of the EDID reading channel to a first EDID memory for storing first EDID data, and executes the step 3, wherein the first EDID data comprises video information and audio information; otherwise, the display switches the current memory of the EDID reading channel to a second EDID memory for storing second EDID data and executes the step 3, wherein the second EDID data only comprises video information;
step 3, the HPD is turned on again by the display, and the computer system captures the corresponding EDID data in the current memory after recognizing the HPD signal;
step 4, the computer system judges whether the obtained EDID data comprises audio information; if yes, the computer end system simultaneously transmits the video signal and the audio signal to the display and executes the step 5; otherwise, the computer end system only transmits the video signal to the display and executes the step 6;
step 5, the display displays the video signal and simultaneously plays the audio signal through the external audio equipment and executes the step 1;
and 6, displaying the video signal on the display, simultaneously playing the audio signal on the computer terminal, and executing the step 1.
A device for automatically switching audio equipment comprises a display and a computer end, wherein the display comprises a Scaler chip, a first EDID memory, a second EDID memory, a FLASH memory, a signal interface and an external audio interface, wherein the first EDID memory, the second EDID memory, the FLASH memory, the signal interface and the external audio interface are connected with the Scaler chip; the display is detachably connected with external audio equipment through an external audio interface; the display is connected with the computer end through the signal interface;
the first EDID memory stores first EDID data, the first EDID data including video information and audio information; the second EDID memory stores second EDID data, the second EDID data including only video information; the display reads corresponding EDID data through the ID reading channel according to whether the external audio equipment exists or not; the FLASH memory stores the current EDID data acquired by the EDID reading channel for the calling of the computer system; the computer end outputs video information to the display and outputs or does not output audio information to the display according to the difference of the contents of the current EDID data.
Furthermore, an external audio interface of the display has an HPD function.
Furthermore, the Scaler chip is respectively connected with the first EDID memory and the second EDID memory through the EDID switching circuit so as to be selectively connected with the first EDID memory or the second EDID memory.
Furthermore, when the current EDID data is the first EDID data, the computer end system simultaneously transmits the video signal and the audio signal to the display, and the display displays the video signal and simultaneously plays the audio through the external audio equipment.
Further, when the current EDID data is the second EDID data, the computer end system only transmits the video signal to the display; the display displays the video signal, and the computer end plays the audio signal.
By adopting the technical scheme, the computer end system can automatically identify whether the display has the external playing equipment or not under the condition that a user does not need to manually switch the playing equipment, and judges whether the audio is played by the computer end or the display end. The invention can automatically switch the audio frequency between the computer and the display, does not need the user to manually select the audio frequency playing equipment, has more intelligent audio frequency playing, greatly improves the convenience of audio frequency playing operation, improves the customer experience, reduces the customer complaint and improves the customer satisfaction.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and the detailed description;
FIG. 1 is a flow chart illustrating a method for automatically switching audio devices according to the present invention;
fig. 2 is a schematic structural diagram of an apparatus for automatically switching audio devices according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
As shown in fig. 1, the present invention discloses a method for automatically switching audio devices, which comprises the following steps:
step 1, a display detects whether an external audio device changes; if yes, disconnecting the HPD, and executing the step 2 after the computer end system interrupts the signal input to the display; otherwise, executing step 1;
step 2, the display judges whether to access the external audio equipment; if so, the display switches the current memory of the EDID reading channel to a first EDID memory for storing first EDID data, and executes the step 3, wherein the first EDID data comprises video information and audio information; otherwise, the display switches the current memory of the EDID reading channel to a second EDID memory for storing second EDID data and executes the step 3, wherein the second EDID data only comprises video information;
step 3, the HPD is turned on again by the display, and the computer system captures the corresponding EDID data in the current memory after recognizing the HPD signal;
step 4, the computer system judges whether the obtained EDID data comprises audio information; if yes, the computer end system simultaneously transmits the video signal and the audio signal to the display and executes the step 5; otherwise, the computer end system only transmits the video signal to the display and executes the step 6;
step 5, the display displays the video signal and simultaneously plays the audio signal through the external audio equipment and executes the step 1;
and 6, displaying the video signal on the display, simultaneously playing the audio signal on the computer terminal, and executing the step 1.
As shown in fig. 2, an apparatus for automatically switching audio devices includes a display and a computer, wherein the display includes a Scaler chip, and a first EDID memory, a second EDID memory, a FLASH memory, a signal interface and an external audio interface connected to the Scaler chip; the display is detachably connected with external audio equipment through an external audio interface; the display is connected with the computer end through the signal interface;
the first EDID memory stores first EDID data, the first EDID data including video information and audio information; the second EDID memory stores second EDID data, the second EDID data including only video information; the display reads corresponding EDID data through the ID reading channel according to whether the external audio equipment exists or not; the FLASH memory stores the current EDID data acquired by the EDID reading channel for the calling of the computer system; the computer end outputs video information to the display and outputs or does not output audio information to the display according to the difference of the contents of the current EDID data.
Furthermore, an external audio interface of the display has an HPD function.
Further, the Scaler chip is respectively connected with the first EDID memory and the second EDID memory through the EDID switching circuit so as to select to connect the first EDID memory or the second EDID memory according to whether an external audio device is connected.
Furthermore, when the current EDID data is the first EDID data, the computer end system simultaneously transmits the video signal and the audio signal to the display, and the display displays the video signal and simultaneously plays the audio through the external audio equipment.
Further, when the current EDID data is the second EDID data, the computer end system only transmits the video signal to the display; the display displays the video signal, and the computer end plays the audio signal.
Compared with the prior art, the invention has the following differences: 1. EDID: the prior art display has only one EDID and contains audio information. In the display of the present invention, there are two EDIDs, one containing audio information and one containing no audio information. 2. Operating interface of computer system: the default of the prior art system is that the audio playing device is a display, and if a user wants to change the playing device, the user needs to manually select the audio playing device. If the display is connected with external audio playing equipment, the system defaults to play audio by the display; if the display is not connected with the external audio playing device, the system defaults to playing audio by the computer loudspeaker. 3. Line: in the prior technical scheme, only 1 EDID exists in EEPROM. The scheme of the invention is changed to have two EDIDs which are respectively stored in EEPROM and Flash, and an EDID switching control loop is added.
By adopting the technical scheme, the computer end system can automatically identify whether the display has the external playing equipment or not under the condition that a user does not need to manually switch the playing equipment, and judges whether the audio is played by the computer end or the display end. The invention can automatically switch the audio frequency between the computer and the display, does not need the user to manually select the audio frequency playing equipment, has more intelligent audio frequency playing, greatly improves the convenience of audio frequency playing operation, improves the customer experience, reduces the customer complaint and improves the customer satisfaction.
It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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.
Claims (6)
1. A method of automatically switching audio devices, characterized by: which comprises the following steps:
step 1, a display detects whether an external audio device changes; if yes, disconnecting the HPD, and executing the step 2 after the computer end system interrupts the signal input to the display; otherwise, executing step 1;
step 2, the display judges whether to access the external audio equipment; if yes, the display switches the current memory of the EDID reading channel to a first EDID memory for storing first EDID data and executes the step 3, wherein the first EDID data comprises video information and audio information; otherwise, the display switches the current memory of the EDID reading channel to a second EDID memory for storing second EDID data and executes the step 3, wherein the second EDID data only comprises video information;
step 3, the HPD is turned on again by the display, and the computer system captures the corresponding EDID data in the current memory after recognizing the HPD signal;
step 4, the computer system judges whether the obtained EDID data comprises audio information; if yes, the computer end system simultaneously transmits the video signal and the audio signal to the display and executes the step 5; otherwise, the computer end system only transmits the video signal to the display and executes the step 6;
step 5, the display displays the video signal and simultaneously plays the audio signal through the external audio equipment and executes the step 1;
and 6, displaying the video signal on the display, simultaneously playing the audio signal on the computer terminal, and executing the step 1.
2. An apparatus for automatically switching audio devices, which employs the method for automatically switching audio devices of claim 1, wherein: the device comprises a display and a computer end, wherein the display comprises a Scaler chip, a first EDID memory, a second EDID memory, a FLASH memory, a signal interface and an external audio interface which are connected with the Scaler chip; the display is detachably connected with external audio equipment through an external audio interface; the display is connected with the computer end through the signal interface;
the first EDID memory stores first EDID data, the first EDID data including video information and audio information; the second EDID memory stores second EDID data, the second EDID data including only video information; the display reads corresponding EDID data through the ID reading channel according to whether the external audio equipment exists or not; the FLASH memory stores the current EDID data acquired by the EDID reading channel for the calling of the computer system; the computer end outputs video information to the display and outputs or does not output audio information to the display according to the difference of the contents of the current EDID data.
3. The apparatus for automatically switching audio devices of claim 2, wherein: the external audio interface of the display has the HPD function.
4. The apparatus for automatically switching audio devices of claim 2, wherein: the Scaler chip is respectively connected with the first EDID memory and the second EDID memory through the EDID switching circuit so as to be selectively connected with the first EDID memory or the second EDID memory.
5. The apparatus for automatically switching audio devices of claim 2, wherein: when the current EDID data is the first EDID data, the computer end system simultaneously transmits the video signal and the audio signal to the display, and the display displays the video signal and simultaneously plays the audio through the external audio equipment.
6. The apparatus for automatically switching audio devices according to claim 2, wherein: when the current EDID data is the second EDID data, the computer end system only transmits the video signal to the display; the display displays the video signal, and the computer end plays the audio signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210152679.0A CN114554354B (en) | 2022-02-18 | 2022-02-18 | Method for automatically switching audio equipment and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210152679.0A CN114554354B (en) | 2022-02-18 | 2022-02-18 | Method for automatically switching audio equipment and application thereof |
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| Publication Number | Publication Date |
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| CN114554354A true CN114554354A (en) | 2022-05-27 |
| CN114554354B CN114554354B (en) | 2023-11-24 |
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Citations (7)
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|---|---|---|---|---|
| US20090033668A1 (en) * | 2007-07-31 | 2009-02-05 | Pederson Douglas A | Display EDID emulator system and method |
| EP2048652A2 (en) * | 2007-10-09 | 2009-04-15 | Samsung Electronics Co., Ltd. | Display apparatus and method of changing EDID information thereof |
| TW201528124A (en) * | 2013-12-13 | 2015-07-16 | Hon Hai Prec Ind Co Ltd | Display signals switching system and method |
| CN108762707A (en) * | 2018-05-29 | 2018-11-06 | 西安万像电子科技有限公司 | The adaptive approach of multimedia information acquisition, device and system |
| CN208271139U (en) * | 2018-04-19 | 2018-12-21 | 深圳市联鸿泰电子有限公司 | A kind of KVM switcher being switched fast |
| CN111107282A (en) * | 2019-12-05 | 2020-05-05 | 视联动力信息技术股份有限公司 | Video switching method, video switcher, electronic device and storage medium |
| CN113050914A (en) * | 2021-03-31 | 2021-06-29 | 联想(北京)有限公司 | Processing method and output equipment |
-
2022
- 2022-02-18 CN CN202210152679.0A patent/CN114554354B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090033668A1 (en) * | 2007-07-31 | 2009-02-05 | Pederson Douglas A | Display EDID emulator system and method |
| EP2048652A2 (en) * | 2007-10-09 | 2009-04-15 | Samsung Electronics Co., Ltd. | Display apparatus and method of changing EDID information thereof |
| TW201528124A (en) * | 2013-12-13 | 2015-07-16 | Hon Hai Prec Ind Co Ltd | Display signals switching system and method |
| CN208271139U (en) * | 2018-04-19 | 2018-12-21 | 深圳市联鸿泰电子有限公司 | A kind of KVM switcher being switched fast |
| CN108762707A (en) * | 2018-05-29 | 2018-11-06 | 西安万像电子科技有限公司 | The adaptive approach of multimedia information acquisition, device and system |
| CN111107282A (en) * | 2019-12-05 | 2020-05-05 | 视联动力信息技术股份有限公司 | Video switching method, video switcher, electronic device and storage medium |
| CN113050914A (en) * | 2021-03-31 | 2021-06-29 | 联想(北京)有限公司 | Processing method and output equipment |
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| CN114554354B (en) | 2023-11-24 |
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