CN105677288B - System and method for realizing simultaneous driving of internal and external audio output devices - Google Patents
System and method for realizing simultaneous driving of internal and external audio output devices Download PDFInfo
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- CN105677288B CN105677288B CN201511021382.7A CN201511021382A CN105677288B CN 105677288 B CN105677288 B CN 105677288B CN 201511021382 A CN201511021382 A CN 201511021382A CN 105677288 B CN105677288 B CN 105677288B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/16—Sound input; Sound output
- G06F3/162—Interface to dedicated audio devices, e.g. audio drivers, interface to CODECs
Abstract
The application discloses bass equipment, bass detection circuit and inside and outside audio output equipment simultaneous driving's realization system and method, this application through design a bass detection wiring end on bass equipment's audio connector, and the bass is listened the wiring end and is articulated a detection resistance, has realized a bass equipment with bass detection sign, simultaneously through for electronic equipment provide one kind with bass equipment assorted bass detection circuit, realized the effective function of listening when external bass equipment inserts electronic equipment, electronic equipment utilizes bass detection circuit can effectively distinguish bass equipment's access, on this basis, the accessible carries out drive control to electronic equipment sound card chip's audio output, realizes inside and outside audio output equipment's simultaneous driving. Therefore, the problem of simultaneous driving of the internal audio output device and the external audio output device is solved, the application of the scheme is not limited to a certain operating system or a certain product, and the universality is high.
Description
Technical Field
The invention belongs to the technical field of drive control of audio output, and particularly relates to a system and a method for realizing simultaneous drive of internal and external audio output equipment.
Background
At present, the simplicity, lightness and thinness have become the mainstream trend of apparatuses In the industry, such as notebook computers, tablet computers, smart phones, and AIO (All In One). However, with increasingly sophisticated and lightweight designs, devices such as notebook computers and AIOs are increasingly poor in bass performance due to limitations on product size. In order to solve the bass problem of such devices, the industry has preliminarily proposed a mode of simultaneously applying an external subwoofer (commonly called a subwoofer) and an internal loudspeaker, namely, controlling the internal loudspeaker and the external subwoofer to simultaneously output audio, and balancing the bass effect of such devices by superposing the sound effects of the external devices.
This application requires ensuring that the internal and external audio output devices can be driven simultaneously. However, in the current industry, only a mature scheme for driving the internal and external audio output devices non-simultaneously (i.e., driving the internal speaker when the earphone/audio device is not inserted, and not driving the internal speaker when the earphone/audio device is inserted) is implemented, and the application for driving the internal and external audio output devices simultaneously is relatively small, and only a single enterprise implements a simultaneous driving scheme limited to its internal products, for example, apple company implements a scheme for driving the internal speaker and the external subwoofer simultaneously, which can only be applied to IOS (IPhone OS, apple mobile operating system).
Disclosure of Invention
In view of the above, the present invention provides a system and a method for implementing simultaneous driving of internal and external audio output devices, which aims to solve the problem of universality of simultaneous driving of the internal and external audio output devices.
Therefore, the invention discloses the following technical scheme:
a bass apparatus comprising a bass filter circuit, a speaker connected to the bass filter circuit, and an audio connector connected to the bass filter circuit, the audio connector comprising:
a bass detection terminal;
one end of the detection resistor is connected with the bass detection terminal, and the other end of the detection resistor is connected with the common end GND.
Above bass equipment, preferably, the audio connector further includes:
the left sound channel terminal and the right sound channel terminal are connected with the bass filter circuit;
and the first grounding end is connected with the bass filter circuit and is connected with a common end GND in parallel.
A bass detection circuit comprises a sound card chip and an audio interface, wherein the sound card chip comprises a bass detection pin; the audio interface comprises a bass detection end connected with the bass detection pin.
Above-mentioned bass detection circuit, it is preferable, sound card chip still includes left channel pin, right channel pin, then audio interface still includes:
a left channel audio output end connected with a left channel pin of the sound card chip;
a right channel audio output end connected with a right channel pin of the sound card chip;
and a second ground terminal connected to the common terminal GND.
An implementation system for simultaneous driving of internal and external audio output devices, comprising an electronic device and a bass device as claimed in claim 1 or 2, the electronic device comprising a built-in audio output device and a bass detection circuit as claimed in claim 3 or 4, wherein:
when the audio connector of the bass equipment is connected with the audio interface of the electronic equipment, the bass detection terminal is connected with the bass detection terminal.
In the above system, preferably, when the audio connector of the bass device is connected to the audio interface of the electronic device, the left channel terminal is connected to the left channel audio output terminal; the right sound channel wiring terminal is connected with the right sound channel audio output end.
An implementation method for driving an internal audio output device and an external audio output device simultaneously comprises the following steps based on the system:
when external audio output equipment is accessed to the electronic equipment, determining the equipment type of the external audio output equipment;
and if the external audio output equipment is the bass equipment, simultaneously carrying out drive control on the internal audio output equipment and the external audio output equipment.
In the above method, preferably, the determining the device type of the external audio output device includes:
acquiring a current value detected by a bass detection pin of the sound card chip;
judging whether the current value is a preset value or not; the size of the preset value is determined by the resistance value of the detection resistor;
if yes, the external audio output equipment is the bass equipment.
In the method, it is preferable that the driving control of the internal audio output device and the external audio output device simultaneously includes:
adjusting the output mode of the sound card chip to be that two groups of audios are output simultaneously; one group of audio output is used for outputting left and right channel audio to the built-in audio output device, and the other group of audio output is used for outputting left and right channel audio to the external audio output device;
and driving the audio lines respectively corresponding to the two groups of audio outputs so as to enable the audio lines to be in a working state.
According to the scheme, the system and the method for simultaneously driving the internal and external audio output devices are characterized in that a bass detection terminal is designed on an audio connector of the bass device, a detection resistor is hung on the bass detection terminal, the bass device with a bass detection mark is realized, meanwhile, an effective detection function when the external bass device is connected into the electronic device is realized by providing a bass detection circuit matched with the bass device for the electronic device, the electronic device utilizes the bass detection circuit to effectively identify the connection of the bass device, and on the basis, the driving control can be carried out on the audio output of a sound card chip of the electronic device through the bass output, so that the internal and external audio output devices are simultaneously driven. Therefore, the problem of simultaneous driving of the internal audio output device and the external audio output device is solved, the application of the scheme is not limited to a certain operating system or a certain product, and the universality is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a first bass apparatus according to a first embodiment of the present application;
fig. 2 is a schematic structural diagram of a second embodiment of a bass detection circuit provided in the present application;
fig. 3 is a flowchart of a fourth implementation method for driving the internal and external audio output devices simultaneously according to the present application.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.
Example one
Referring to fig. 1, fig. 1 is a schematic structural diagram of a first bass device provided in the present application, where the bass device includes a bass filter circuit 101, a speaker 102 connected to the bass filter circuit 101, and an audio connector 103 connected to the bass filter circuit 101, where the audio connector 103 includes:
a bass detection terminal 1031;
a detection resistor 1032 having one end connected to the bass detection terminal 1031 and the other end connected to the common terminal GND;
a left channel terminal 1033 and a right channel terminal 1034 connected to the bass filter circuit 101;
and a first ground terminal 1035 connected to the bass filter circuit 101 and connected to the common terminal GND.
The left channel terminal 1033 is configured to output a left channel audio output by a sound card chip of the electronic device for the bass device, the right channel terminal 1034 is configured to output a right channel audio output by a sound card chip of the electronic device for the bass device, and the accessed left and right channel audios respectively realize bass playing through a filtering function of the bass filtering circuit 101 and a bass amplifying function of the speaker 102.
The current industry has only realized the non-simultaneous drive scheme of comparatively ripe inside and outside audio output equipment, when not detecting external audio equipment (like the earphone) to insert promptly, drives electronic equipment's built-in loudspeaker and carries out audio output, then drives external audio equipment and carries out audio output when detecting external audio equipment to insert. Based on this, in order to solve the problem of driving the internal audio output device and the external bass device of the light and thin products such as notebook, AIO, etc. simultaneously, and further solve the problem of bass performance of such products, the present application designs a bass detection terminal 1031 on the audio connector 103 of the bass device, and connects a detection resistor 1032 to the bass detection terminal 1031, for example, specifically connects a 100K Ω resistor, etc., so as to serve as the appointed identification of the bass device to support the access identification of the bass device.
The bass equipment can adopt a 4-end type 3.5-inch audio connector, and 4 pins (pins) on the audio connector are a left sound channel terminal, a right sound channel terminal, a grounding terminal and a bass detection terminal respectively.
When the bass equipment is connected to the electronic equipment through the audio connector 103, the detecting resistor 1032 can be connected to the sound card chip of the electronic equipment through the bass detecting terminal 1031, so that the sound card chip of the electronic equipment can identify that the connected external equipment is the bass equipment through the detecting resistor, and further, a scheme for simultaneously driving the built-in loudspeaker and the external bass equipment of the electronic equipment can be realized to provide a basis for identifying the bass equipment.
Example two
Referring to fig. 2, fig. 2 is a schematic structural diagram of a second embodiment of a bass detection circuit provided in the present application, where the bass detection circuit includes a sound card chip 201 and an audio interface 202, and the sound card chip 201 includes a bass detection pin 2011; the audio interface 202 includes a bass detection terminal 2021 connected to the bass detection pin 2011.
The sound card chip 201 further includes a left channel pin 2012 and a right channel pin 2013, and correspondingly the audio interface 202 further includes:
a left channel audio output 2022 connected to the left channel pin 2012 of the sound card chip 201;
a right channel audio output 2023 connected to the right channel pin 2013 of the sound card chip 201;
and a second ground terminal 2024 connected to the common terminal GND.
The bass detection circuit provided by the embodiment is matched with the bass device provided by the first embodiment.
The bass detection circuit is integrated in electronic equipment such as a notebook computer, an AIO and the like and provides the access identification function of external bass equipment for the electronic equipment. When the audio connector 103 of the bass device is connected to the audio interface 202 of the electronic device, the bass detection terminal 1031, the left channel terminal 1033, and the right channel terminal 1034 of the bass device are respectively connected to the bass detection terminal 2021, the left channel audio output terminal 2022, and the right channel audio output terminal 2023 of the bass detection circuit.
Therefore, when bass equipment is accessed, the electronic equipment can utilize the bass detection circuit to detect the appointed identification of the bass equipment, namely, the detection resistor 1032 hooked at the bass detection terminal 1031, so as to identify the accessed external equipment as the bass equipment.
Specifically, when the bass equipment is connected to the electronic equipment, the detection resistor 1032 of the bass equipment is connected to the sound card chip of the electronic equipment through the bass detection terminal 1031 of the audio connector of the bass equipment and the bass detection terminal 2021 of the audio interface of the bass detection circuit, and at this time, since the sound card chip has a corresponding power supply, the circuit where the detection resistor 1032 is located is turned on, so that a current value with a fixed magnitude is generated at the bass detection terminal 2021, the magnitude of the current value is specifically determined by the resistance value of the detection resistor 1032, and the electronic equipment can detect the current value through the bass detection pin 2011 of the sound card chip, thereby realizing the identification of the connected bass equipment.
In an actual application scenario, an earphone jack of the electronic device can be specifically used as an audio interface of the bass detection circuit, that is, the existing earphone jack of the electronic device can be used for simultaneously providing access functions of different types of external audio output devices such as earphones and bass devices, when the interface is connected to the bass device, a fourth pin in the interface except for the left and right channel audio output ends and the grounding end is used for providing the bass detection function, and when the interface is connected to the earphone, the fourth pin is used for providing a mic (microphone) connection function.
EXAMPLE III
The embodiment discloses a system for simultaneously driving an internal audio output device and an external audio output device, which comprises an electronic device and a bass device as described in the first embodiment, wherein the electronic device comprises the internal audio output device and a bass detection circuit as described in the second embodiment.
The electronic device may be a notebook computer, a tablet computer, a smart phone, an AIO, or the like, and the built-in audio output device may be a built-in speaker of the electronic device.
Based on the description of the second embodiment, when the audio connector 103 of the bass device is connected to the audio interface 202 of the electronic device, the bass detection terminal 1031, the left channel terminal 1033, and the right channel terminal 1034 of the bass device are respectively connected to the bass detection terminal 2021, the left channel audio output terminal 2022, and the right channel audio output terminal 2023 of the bass detection circuit. When a bass device is accessed, the electronic device can identify the accessed device as a bass device through the appointed identification of the bass device, that is, the detection resistor 1032 of the bass device.
On this basis, the electronic device can adjust the output mode of the sound card chip, for example, the current single-group audio output mode (left and right channel audio output of the built-in speaker) is adjusted to the mode of simultaneously outputting the inner and outer two groups of audio, so as to provide support for the simultaneous driving of the built-in speaker and the external bass device, and further, the simultaneous output of the audio of the built-in speaker and the external bass device can be realized.
According to the scheme, the utility model provides an inside and outside audio output equipment simultaneous driving's realization system, through design a bass on bass's audio connector listen the wiring end, and the bass is listened the wiring end and is articulated a detection resistor, has realized a bass equipment with bass is listened the sign, simultaneously through for electronic equipment provide one kind with bass equipment assorted bass detection circuit, realized the effective function of listening when external bass equipment inserts electronic equipment, electronic equipment utilizes bass detection circuit can effectively distinguish bass equipment's access, on this basis, the accessible carries out drive control to the audio output of electronic equipment sound card chip, realizes inside and outside audio output equipment's simultaneous driving. Therefore, the problem of simultaneous driving of the internal audio output device and the external audio output device is solved, the application of the scheme is not limited to a certain operating system or a certain product, and the universality is high.
Example four
Referring to fig. 3, fig. 3 is a flowchart of a fourth embodiment of a method for implementing simultaneous driving of internal and external audio output devices according to the present application, where the method is based on the system disclosed in the third embodiment, and the method may include the following steps:
s301: and when external audio output equipment is accessed to the electronic equipment, determining the equipment type of the external audio output equipment.
Specifically, when an external audio output device is connected to an electronic device, whether the device type of the external audio output device is the bass device can be identified by detecting whether the current value of a bass detection pin of a sound card chip is a predetermined value, wherein the size of the predetermined value is determined by the resistance value of a detection resistor in the bass device. And if the current value of the bass detection pin of the sound card chip is the preset value, the accessed equipment can be identified as bass equipment. Otherwise, the accessed device is other types of external audio devices, such as earphones and the like.
S302: and if the external audio output equipment is the bass equipment, simultaneously carrying out drive control on the internal audio output equipment and the external audio output equipment.
When the external audio output equipment is recognized as bass equipment, the current single-group audio output mode of a sound card chip of the electronic equipment can be adjusted to be two groups of audio output modes for simultaneously outputting the internal and external audios by utilizing the sound card drive, for example, the current single-group audio output mode of 'left and right channels output of an internal loudspeaker' of the sound card chip can be adjusted to be two groups of audio simultaneous output modes of 'left and right channels output of the internal loudspeaker + left and right channels output of the external bass equipment', on the basis, the audio lines of the internal and external audio equipment are simultaneously driven, so that the audio lines of the two sets of audio equipment are in a working state, the simultaneous output of the audio of the internal loudspeaker and the external bass equipment is finally realized, and the bass effect of the electronic equipment can be effectively improved by the superposition of the sound effect of the external bass equipment.
According to the scheme, the implementation method for simultaneously driving the internal and external audio output devices provided by the application comprises the steps that a bass detection wiring terminal is designed on an audio connector of the bass device, the bass detection wiring terminal is connected with a detection resistor in an articulated mode, the bass device with a bass detection mark is realized, meanwhile, an effective detection function when the external bass device is connected into the electronic device is realized by providing a bass detection circuit matched with the bass device for the electronic device, the electronic device utilizes the bass detection circuit to effectively identify the connection of the bass device, and on the basis, the driving control can be carried out on the audio output of a sound card chip of the electronic device through the bass detection circuit, so that the internal and external audio output devices are driven simultaneously. Therefore, the problem of simultaneous driving of the internal audio output device and the external audio output device is solved, the application of the scheme is not limited to a certain operating system or a certain product, and the universality is high.
From the above description of the embodiments, it is clear to those skilled in the art that the present application can be implemented by software plus necessary general hardware platform. Based on such understanding, the technical solutions of the present application may be essentially or partially implemented in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments or some parts of the embodiments of the present application.
Finally, it is further noted that, herein, relational terms such as first, second, third, fourth, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A bass apparatus, comprising a bass filter circuit, a loudspeaker connected to the bass filter circuit, and an audio connector connected to the bass filter circuit, wherein the audio connector comprises:
a bass detection terminal;
one end of the detection resistor is connected with the bass detection terminal, and the other end of the detection resistor is connected with a common end GND; the detection resistor is used for: under the condition that the bass equipment is connected into the electronic equipment, a bass detection pin on a sound card chip of built-in audio output equipment of the electronic equipment is used for controlling the electronic equipment to identify the bass equipment based on the detection resistor, at least a single group of audio output mode and an internal and external two groups of audio output modes are configured in the sound card chip, when the connection of the bass equipment is detected based on the bass detection pin on the sound card chip, the electronic equipment adjusts the output mode of the sound card chip into the internal and external two groups of audio output modes, and drives and controls the audio output of the sound card chip based on the adjusted output mode, so that the internal and external audio output equipment can be driven simultaneously;
the audio connector is used for being connected into an earphone jack of electronic equipment, the earphone jack is provided with a pin used for providing a mic connection function, and the pin is used for providing a bass detection function when the earphone jack is connected into the bass equipment.
2. The bass apparatus of claim 1, wherein the audio connector further comprises:
the left sound channel terminal and the right sound channel terminal are connected with the bass filter circuit;
and the first grounding end is connected with the bass filter circuit and is connected with a common end GND in parallel.
3. A bass detection circuit is applied to electronic equipment, the electronic equipment comprises a built-in audio output device and a sound card chip for controlling the built-in audio output device, the circuit comprises the sound card chip for controlling the built-in audio output device and an audio interface, the sound card chip comprises a bass detection pin for identifying the bass equipment based on a detection resistor of the bass equipment; when the access of bass equipment is detected based on a bass detection pin on the sound card chip, the electronic equipment adjusts the output mode of the sound card chip into a mode of simultaneously outputting two groups of inner and outer audios, and drives and controls the audio output of the sound card chip based on the adjusted output mode so as to realize the simultaneous driving of the inner and outer audio output equipment;
the audio interface includes with bass is listened the bass and is listened the end that the pin links to each other, the audio interface is electronic equipment's earphone socket, bass is listened the end and is used for providing mic connection function's pin for electronic equipment, and this pin is in earphone socket inserts when bass equipment, be used for providing the bass and listen the function.
4. The circuit of claim 3, wherein the sound card chip further comprises a left channel pin and a right channel pin, and the audio interface further comprises:
a left channel audio output end connected with a left channel pin of the sound card chip;
a right channel audio output end connected with a right channel pin of the sound card chip;
and a second ground terminal connected to the common terminal GND.
5. An implementation system for simultaneous driving of internal and external audio output devices, comprising an electronic device and a bass device as claimed in claim 1 or 2, the electronic device comprising a built-in audio output device and a bass detection circuit as claimed in claim 3 or 4, wherein:
when the audio connector of the bass equipment is connected with the audio interface of the electronic equipment, the bass detection terminal is connected with the bass detection terminal.
6. The system of claim 5, wherein when the audio connector of the bass device is connected to the audio interface of the electronic device, the left channel terminal is connected to the left channel audio output; the right sound channel wiring terminal is connected with the right sound channel audio output end.
7. A method for implementing simultaneous driving of internal and external audio output devices, the method comprising, based on the system of claim 5 or 6:
when external audio output equipment is accessed to the electronic equipment, determining the equipment type of the external audio output equipment;
and if the external audio output equipment is the bass equipment, simultaneously carrying out drive control on the internal audio output equipment and the external audio output equipment.
8. The method of claim 7, wherein determining the device type of the external audio output device comprises:
acquiring a current value detected by a bass detection pin of the sound card chip;
judging whether the current value is a preset value or not; the size of the preset value is determined by the resistance value of the detection resistor;
if yes, the external audio output equipment is the bass equipment.
9. The method of claim 7, wherein the simultaneously performing drive control on the internal audio output device and the external audio output device comprises:
adjusting the output mode of the sound card chip to be that two groups of audios are output simultaneously; one group of audio output is used for outputting left and right channel audio to the built-in audio output device, and the other group of audio output is used for outputting left and right channel audio to the external audio output device;
and driving the audio lines respectively corresponding to the two groups of audio outputs so as to enable the audio lines to be in a working state.
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| CN201352852Y (en) * | 2009-01-07 | 2009-11-25 | 深圳市同洲电子股份有限公司 | Device for automatically detecting and outputting single track or stereo |
| CN105933811B (en) * | 2010-10-02 | 2018-11-20 | 广州市智专信息科技有限公司 | A kind of earphone, corresponding audiogenic device and control method |
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| CN101179871A (en) * | 2006-11-10 | 2008-05-14 | 鸿富锦精密工业（深圳）有限公司 | Earphone and audio play device |
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| CN201601811U (en) * | 2010-02-02 | 2010-10-06 | 李锐 | Attachable subwoofer and portable sound box combination device |
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