CN106060708B - Play the terminal and method of audio - Google Patents
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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
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Abstract
The embodiment of the invention discloses a kind of terminals for playing audio, comprising: audio processing modules, the audio signal for will acquire are separated, and the first channel audio signal, second sound channel audio signal are obtained；Audio processing modules are also used to handle first channel audio signal, second sound channel audio signal, obtain first part, the second part of first channel audio signal, obtain first part, the second part of the second sound channel audio signal；Audio processing modules, it is also used to the first part of first channel audio signal, second part being sent to earpiece module, it is exported by the earpiece module, the first part of the second sound channel audio signal, second part is sent to loudspeaker module, exported by the loudspeaker module.The embodiment of the present invention also discloses a kind of method for playing audio simultaneously.
Description
Technical Field
The present invention relates to the field of audio processing of mobile terminals, and in particular, to a terminal and method for playing audio.
Background
At present, the thinner the thickness of the mobile terminal is, the more the contradiction between the audio effect and the structural space of the mobile terminal is increasing, most of the mobile terminals are only provided with one loudspeaker to save the structural space, so that only mono sound can be played outwards, and often the loudspeaker of the mobile terminal is limited by the internal space of the mobile terminal, on a frequency response curve, the inflection point of f0 is mostly 800 Hz-900 Hz, so that the low-frequency response of the mobile terminal played outwards through the loudspeaker is difficult to reach the ideal frequency range, and the user experience is reduced.
Disclosure of Invention
In view of this, embodiments of the present invention are expected to provide a terminal and a method for playing an audio, so as to achieve that a low-frequency response of the audio reaches an ideal frequency range, and improve user experience.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention provides a terminal for playing audio, which comprises:
the audio processing module is used for separating the acquired audio signals to obtain a first channel audio signal and a second channel audio signal;
the audio processing module is further configured to process the first channel audio signal and the second channel audio signal to obtain a first portion and a second portion of the first channel audio signal, and obtain a first portion and a second portion of the second channel audio signal;
and the audio processing module is also used for sending the first part and the second part of the first sound channel audio signal to an earphone module, outputting the first part and the second part of the second sound channel audio signal to a loudspeaker module through the earphone module, and outputting the first part and the second part through the loudspeaker module.
In the foregoing solution, the terminal further includes:
and the acquisition module is used for acquiring the audio signal.
In the above scheme, the audio processing module is specifically configured to perform channel separation on an obtained audio signal through an intelligent amplification power device;
and the intelligent amplification power device is further specifically configured to perform frequency division processing on the first channel audio signal and the second channel audio signal.
In the above scheme, the first channel audio signal is a left channel audio signal, and the second channel audio signal is a right channel audio signal; or,
the first channel audio signal is a right channel audio signal, and the second channel audio signal is a left channel audio signal.
In the above solution, the first part is a frequency part that can be identified by the earpiece module and cannot be identified by the speaker module, and the second part is a frequency part that cannot be identified by the earpiece module and can be identified by the speaker module; or,
the first part is a frequency part which cannot be identified by the earphone module and can be identified by the speaker module, and the second part is a frequency part which can be identified by the earphone module and can not be identified by the speaker module.
The invention also provides a method for playing audio, which comprises the following steps:
separating the acquired audio signals to obtain a first channel audio signal and a second channel audio signal;
processing the first channel audio signal and the second channel audio signal to obtain a first part and a second part of the first channel audio signal and obtain a first part and a second part of the second channel audio signal;
and sending the first part and the second part of the first sound channel audio signal to an earphone module, outputting the first part and the second part of the second sound channel audio signal to a loudspeaker module through the earphone module, and outputting the first part and the second part through the loudspeaker module.
In the foregoing solution, before the performing channel separation on the acquired audio signal, the method further includes:
the audio signal is acquired.
In the foregoing solution, the separating the acquired audio signals includes:
carrying out sound channel separation on the obtained audio signal through an intelligent amplification power device;
the processing the first channel audio signal and the second channel audio signal includes:
and performing frequency division processing on the first channel audio signal and the second channel audio signal through the intelligent amplification power device.
In the above scheme, the first channel audio signal is a left channel audio signal, and the second channel audio signal is a right channel audio signal; or,
the first channel audio signal is a right channel audio signal, and the second channel audio signal is a left channel audio signal.
In the above solution, the first part is a frequency part that can be identified by the earpiece module and cannot be identified by the speaker module, and the second part is a frequency part that cannot be identified by the earpiece module and can be identified by the speaker module; or,
the first part is a frequency part which cannot be identified by the earphone module and can be identified by the speaker module, and the second part is a frequency part which can be identified by the earphone module and can not be identified by the speaker module.
The embodiment of the invention provides a terminal and a method for playing audio, wherein a first sound channel audio signal and a second sound channel audio signal are obtained by separating the obtained audio signals; processing the first channel audio signal and the second channel audio signal to obtain a first part and a second part of the first channel audio signal and obtain a first part and a second part of the second channel audio signal; sending the first part and the second part of the first channel audio signal to an earphone module, outputting the first part and the second part of the second channel audio signal through the earphone module, sending the first part and the second part of the second channel audio signal to a loudspeaker module, and outputting the first part and the second part through the loudspeaker module; the earphone module compensates the low-frequency audio signal part missing from the loudspeaker module, the low-frequency characteristic is exerted, under the condition that the industrial setting structure of the terminal is limited (because the double loudspeaker modules cannot be arranged in the terminal with limited space), the characteristic with a wide frequency range after the earphone module and the loudspeaker module are combined is combined, the compensation effect is achieved on the audio, the played audio reaches or is closer to the ideal sound effect, the stereo sound effect is achieved, and the user experience is improved.
Drawings
Fig. 1 is a schematic diagram of an alternative hardware architecture of a mobile terminal implementing various embodiments of the present invention;
FIG. 2 is a diagram of a wireless communication system for the mobile terminal shown in FIG. 1;
FIG. 3 is a flowchart illustrating a first embodiment of a method for playing audio according to the present invention;
fig. 4 is a front view of the structure of an earpiece module and a speaker module of a terminal according to a first embodiment of the method for playing audio;
fig. 5 is a front view of a structure of an earpiece module and a speaker module of a terminal according to a first embodiment of the method for playing audio;
FIG. 6 is a path diagram of an audio signal according to a first embodiment of a method for playing audio;
FIG. 7 is a flowchart illustrating the operation of a Smart PA chip according to a first embodiment of the method for playing audio;
FIG. 8 is a flowchart illustrating a second embodiment of a method for playing audio according to the present invention;
FIG. 9 is a schematic structural diagram of a terminal according to an embodiment of the present invention for playing audio;
FIG. 10 is a schematic structural diagram of an apparatus for playing audio according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A mobile terminal implementing various embodiments of the present invention will now be described with reference to the accompanying drawings. In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in themselves. Thus, "module" and "component" may be used in a mixture.
The mobile terminal may be implemented in various forms. For example, the terminal described in the embodiments of the present invention may include a mobile terminal such as a mobile phone, a smart phone, a notebook computer, a digital broadcast receiver, a Personal Digital Assistant (PDA), a PAD computer (PAD), a Portable Multimedia Player (PMP), a navigation device, and the like, and a fixed terminal such as a digital TV, a desktop computer, and the like. In the following, it is assumed that the terminal is a mobile terminal. However, it will be understood by those skilled in the art that the configuration according to the embodiment of the present invention can be applied to a fixed type terminal in addition to elements particularly used for moving purposes.
Fig. 1 is a schematic diagram of an alternative hardware structure of a mobile terminal implementing various embodiments of the present invention.
The mobile terminal 100 may include an audio/video (a/V) input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, an interface unit 170, a controller 180, and a power supply unit 190, and the like. Fig. 1 illustrates a mobile terminal having various components, but it is to be understood that not all illustrated components are required to be implemented. More or fewer components may alternatively be implemented. Elements of the mobile terminal will be described in detail below.
The a/V input unit 120 is used to receive an audio or video signal. The a/V input unit 120 may include a camera 121 and a microphone 122, and the camera 121 processes image data of still pictures or video obtained by an image capturing apparatus in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 151. The image frames processed by the cameras 121 may be stored in the memory 160 (or other storage medium) or transmitted via the wireless communication unit 110, and two or more cameras 121 may be provided according to the construction of the mobile terminal. The microphone 122 may receive sounds (audio data) via the microphone in a phone call mode, a recording mode, a voice recognition mode, or the like, and can process such sounds into audio data. The processed audio (voice) data may be converted into a format output transmittable to a mobile communication base station via the mobile communication module 112 in case of a phone call mode. The microphone 122 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting audio signals.
The user input unit 130 may generate key input data according to a command input by a user to control various operations of the mobile terminal. The user input unit 130 allows a user to input various types of information, and may include a keyboard, dome sheet, touch pad (e.g., a touch-sensitive member that detects changes in resistance, pressure, capacitance, etc. due to being touched), scroll wheel, joystick, etc. In particular, when the touch pad is superimposed on the display unit 151 in the form of a layer, a touch screen may be formed.
The sensing unit 140 detects a current state of the mobile terminal 100 (e.g., an open or closed state of the mobile terminal 100), a position of the mobile terminal 100, presence or absence of contact (i.e., touch input) by a user with the mobile terminal 100, an orientation of the mobile terminal 100, acceleration or deceleration movement and direction of the mobile terminal 100, and the like, and generates a command or signal for controlling an operation of the mobile terminal 100. For example, when the mobile terminal 100 is implemented as a slide-type mobile phone, the sensing unit 140 may sense whether the slide-type phone is opened or closed. In addition, the sensing unit 140 can detect whether the power supply unit 190 supplies power or whether the interface unit 170 is coupled with an external device. The sensing unit 140 may include a proximity sensor 141 as will be described below in connection with a touch screen.
The interface unit 170 serves as an interface through which at least one external device is connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The identification module may store various information for authenticating a user using the mobile terminal 100 and may include a User Identity Module (UIM), a Subscriber Identity Module (SIM), a Universal Subscriber Identity Module (USIM), and the like. In addition, a device having an identification module (hereinafter, referred to as an "identification device") may take the form of a smart card, and thus, the identification device may be connected with the mobile terminal 100 via a port or other connection means. The interface unit 170 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal and the external device.
In addition, when the mobile terminal 100 is connected with an external cradle, the interface unit 170 may serve as a path through which power is supplied from the cradle to the mobile terminal 100 or may serve as a path through which various command signals input from the cradle are transmitted to the mobile terminal. Various command signals or power input from the cradle may be used as signals for recognizing whether the mobile terminal is accurately mounted on the cradle. The output unit 150 is configured to provide output signals (e.g., audio signals, video signals, alarm signals, vibration signals, etc.) in a visual, audio, and/or tactile manner. The output unit 150 may include a display unit 151, an audio output module 152, an alarm unit 153, and the like.
The display unit 151 may display information processed in the mobile terminal 100. For example, when the mobile terminal 100 is in a phone call mode, the display unit 151 may display a User's Interface (UI) or a Graphical User Interface (GUI) related to a call or other communication (e.g., text messaging, multimedia file downloading, etc.). When the mobile terminal 100 is in a video call mode or an image capturing mode, the display unit 151 may display a captured image and/or a received image, a UI or GUI showing a video or an image and related functions, and the like.
Meanwhile, when the display unit 151 and the touch pad are overlapped with each other in the form of a layer to form a touch screen, the display unit 151 may serve as an input device and an output device. The display unit 151 may include at least one of a Liquid Crystal Display (LCD), a thin film transistor LCD (TFT-LCD), an Organic Light Emitting Diode (OLED) display, a flexible display, a three-dimensional (3D) display, and the like. Some of these displays may be configured to be transparent to allow a user to see from the outside, which may be referred to as transparent displays, and a typical transparent display may be, for example, a Transparent Organic Light Emitting Diode (TOLED) display or the like. Depending on the particular desired implementation, the mobile terminal 100 may include two or more display units (or other display devices), for example, the mobile terminal may include an external display unit (not shown) and an internal display unit (not shown). The touch screen may be used to detect a touch input pressure as well as a touch input position and a touch input area.
The audio output module 152 may convert audio data stored in the memory 160 into an audio signal and output as sound when the mobile terminal is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output module 152 may provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output module 152 may include a speaker, a buzzer, and the like.
The alarm unit 153 may provide an output to notify the mobile terminal 100 of the occurrence of an event. Typical events may include call reception, message reception, key signal input, touch input, and the like. In addition to audio or video output, the alarm unit 153 may provide output in different ways to notify the occurrence of an event. For example, the alarm unit 153 may provide an output in the form of vibration, and when a call, a message, or some other incoming communication (communicating communication) is received, the alarm unit 153 may provide a tactile output (i.e., vibration) to inform the user thereof. By providing such a tactile output, the user can recognize the occurrence of various events even when the user's mobile phone is in the user's pocket. The alarm unit 153 may also provide an output notifying the occurrence of an event via the display unit 151 or the audio output module 152.
The memory 160 may store software programs or the like for processing and controlling operations performed by the controller 180, or may temporarily store data (e.g., a phonebook, messages, still images, videos, etc.) that has been output or is to be output. Also, the memory 160 may store data regarding various ways of vibration and audio signals output when a touch is applied to the touch screen.
The memory 160 may include at least one type of storage medium including a flash memory, a hard disk, a multimedia card, a card-type memory (e.g., SD or DX memory, etc.), a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, an optical disk, and the like. Also, the mobile terminal 100 may cooperate with a network storage device that performs a storage function of the memory 160 through a network connection.
The controller 180 generally controls the overall operation of the mobile terminal. For example, the controller 180 performs control and processing related to voice calls, data communications, video calls, and the like. In addition, the controller 180 may include a multimedia module 181 for reproducing (or playing back) multimedia data, and the multimedia module 181 may be constructed within the controller 180 or may be constructed separately from the controller 180. The controller 180 may perform a pattern recognition process to recognize a handwriting input or a picture drawing input performed on the touch screen as a character or an image.
The power supply unit 190 receives external power or internal power and provides appropriate power required to operate various elements and components under the control of the controller 180.
The various embodiments described herein may be implemented in a computer-readable medium using, for example, computer software, hardware, or any combination thereof. For a hardware implementation, the embodiments described herein may be implemented using at least one of an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a processor, a controller, a microcontroller, a microprocessor, an electronic unit designed to perform the functions described herein, and in some cases, such embodiments may be implemented in the controller 180. For a software implementation, the implementation such as a process or a function may be implemented with a separate software module that allows performing at least one function or operation. The software codes may be implemented by software applications (or programs) written in any suitable programming language, which may be stored in the memory 160 and executed by the controller 180.
Up to now, the mobile terminal has been described in terms of its functions. Hereinafter, a slide-type mobile terminal among various types of mobile terminals, such as a folder-type, bar-type, swing-type, slide-type mobile terminal, and the like, will be described as an example for the sake of brevity. Accordingly, the present invention can be applied to any type of mobile terminal, and is not limited to a slide type mobile terminal.
The mobile terminal 100 as shown in fig. 1 may be configured to operate with communication systems such as wired and wireless communication systems and satellite-based communication systems that transmit data via frames or packets.
A communication system in which a mobile terminal according to the present invention is operable will now be described with reference to fig. 2.
Such communication systems may use different air interfaces and/or physical layers. For example, the air interface used by the communication system includes, for example, Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Code Division Multiple Access (CDMA), and Universal Mobile Telecommunications System (UMTS) (in particular, Long Term Evolution (LTE)), global system for mobile communications (GSM), and the like. By way of non-limiting example, the following description relates to a CDMA communication system, but such teachings are equally applicable to other types of systems.
Referring to fig. 2, the CDMA wireless communication system may include a plurality of mobile terminals 100, a plurality of Base Stations (BSs) 270, Base Station Controllers (BSCs) 275, and a Mobile Switching Center (MSC) 280. The MSC280 is configured to interface with a Public Switched Telephone Network (PSTN) 290. The MSC280 is also configured to interface with a BSC275, which may be coupled to the base station 270 via a backhaul. The backhaul may be constructed according to any of several known interfaces including, for example, E1/T1, ATM, IP, PPP, frame Relay, HDSL, ADSL, or xDSL. It will be understood that a system as shown in fig. 2 may include multiple BSCs 275.
Each BS270 may serve one or more sectors (or regions), each sector covered by a multi-directional antenna or an antenna pointing in a particular direction being radially distant from the BS 270. Alternatively, each partition may be covered by two or more antennas for diversity reception. Each BS270 may be configured to support multiple frequency allocations, with each frequency allocation having a particular frequency spectrum (e.g., 1.25MHz,5MHz, etc.).
The intersection of partitions with frequency allocations may be referred to as a CDMA channel. The BS270 may also be referred to as a Base Transceiver Subsystem (BTS) or other equivalent terminology. In such a case, the term "base station" may be used to generically refer to a single BSC275 and at least one BS 270. The base stations may also be referred to as "cells". Alternatively, each sector of a particular BS270 may be referred to as a plurality of cell sites.
As shown in fig. 2, a Broadcast Transmitter (BT)295 transmits a broadcast signal to the mobile terminal 100 operating within the system. In fig. 2, several Global Positioning System (GPS) satellites 300 are shown. The satellite 300 assists in locating at least one of the plurality of mobile terminals 100.
In fig. 2, a plurality of satellites 300 are depicted, but it is understood that useful positioning information may be obtained with any number of satellites. Other techniques that can track the location of the mobile terminal may be used instead of or in addition to GPS tracking techniques. In addition, at least one GPS satellite 300 may selectively or additionally process satellite DMB transmission.
As a typical operation of the wireless communication system, the BS270 receives reverse link signals from various mobile terminals 100. The mobile terminal 100 is generally engaged in conversations, messaging, and other types of communications. Each reverse link signal received by a particular base station 270 is processed within the particular BS 270. The obtained data is forwarded to the associated BSC 275. The BSC provides call resource allocation and mobility management functions including coordination of soft handoff procedures between BSs 270. The BSCs 275 also route the received data to the MSC280, which provides additional routing services for interfacing with the PSTN 290. Similarly, the PSTN290 interfaces with the MSC280, the MSC interfaces with the BSCs 275, and the BSCs 275 accordingly control the BS270 to transmit forward link signals to the mobile terminal 100.
Based on the above mobile terminal hardware structure and communication system, various embodiments of the present invention are proposed.
Example one
The method for playing audio provided by the embodiment of the present invention may be implemented on a terminal for playing audio, and the terminal related to the present invention may include terminals such as a mobile phone, a smart phone, a notebook computer, a digital broadcast receiver, a Personal Digital Assistant (PDA), a tablet computer (PAD), a Portable Multimedia Player (PMP), a navigation device, and the like.
If the terminal has an operating system, the operating system may be UNIX, Linux, Windows, Mac OS X, Android (Android), Windows Phone, or the like.
Application software (APP) is a third-party Application program of the intelligent terminal, and a user can work, entertain, acquire information and the like through various Application software, and the formats of the APP include ipa, pxl, deb, apk and the like.
Fig. 3 is a flowchart of a first embodiment of a method for playing audio according to the present invention, and as shown in fig. 3, the method for playing audio according to the embodiment of the present invention may include the following steps:
step 301, separating the acquired audio signals to obtain a first channel audio signal and a second channel audio signal.
The terminal performs sound channel separation on the acquired audio signal to obtain a first sound channel audio signal and a second sound channel audio signal; wherein the first channel audio signal may be a left channel audio signal, and the second channel audio signal may be a right channel audio signal; alternatively, the first channel audio signal may be a right channel audio signal, and the second channel audio signal may be a left channel audio signal.
For example, the terminal may enable the Smart PA chip to operate in a binaural mode by changing a register configuration of the Smart PA chip disposed inside the terminal in advance, and at this time, when the Smart PA chip receives an audio signal separation task sent by the terminal, the Smart PA chip may separate left and right channels of the obtained audio signal to obtain a left channel audio signal and a right channel audio signal.
In the embodiments of the present invention, the power amplifier is not limited to various types of audio power amplifiers, and in order to ensure power consumption of the mobile terminal and audio signal processing efficiency, the embodiments of the present invention are explained with an intelligent power amplifier Smart PA chip.
Step 302, processing the first channel audio signal and the second channel audio signal to obtain a first portion and a second portion of the first channel audio signal, and obtain a first portion and a second portion of the second channel audio signal.
The terminal performs frequency division processing on the first channel audio signal and the second channel audio signal acquired in step 301 to obtain a first part and a second part of the first channel audio signal, and obtain a first part and a second part of the second channel audio signal; the first part may be a frequency part which can be identified by an earphone module of the terminal and cannot be identified by a speaker module of the terminal, and the second part may be a frequency part which cannot be identified by the earphone module of the terminal and can be identified by the speaker module of the terminal; or, the first part may be a frequency part that cannot be identified by an earpiece module of the terminal and that can be identified by a speaker module of the terminal, and the second part may be a frequency part that can be identified by the earpiece module of the terminal and that cannot be identified by the speaker module of the terminal.
Fig. 4 is a front view of a structure of an earpiece module and a speaker module of a terminal according to a first embodiment of a method for playing audio of the present invention, and fig. 5 is a front view of a structure of an earpiece module and a speaker module of a terminal according to a first embodiment of a method for playing audio of the present invention, as shown in fig. 4 and 5, 41 and 51 are earpiece modules of a terminal, and 42 and 52 are speaker modules of a terminal, wherein the speaker module of a terminal is not limited to be disposed at the bottom of a terminal, but may be disposed at the back of a terminal or other suitable positions (not shown in fig. 4 and 5).
The specifications of several different speaker modules and earphone modules are shown in table 1.
TABLE 1
For example, the terminal sends an audio signal frequency division processing task to the Smart PA chip, the Smart PA chip performs frequency division processing on the obtained left channel audio signal and right channel audio signal, and specifically, the Smart PA chip divides the frequency of the left channel audio signal into a frequency part which can be recognized by the headphone module and cannot be recognized by the speaker module, that is, a left channel low-frequency audio signal, and a frequency part which cannot be recognized by the headphone module and can be recognized by the speaker module, that is, a left channel high-frequency audio signal, according to the frequency parameter range of the audio signal which can be recognized by the headphone module and the frequency parameter range of the audio signal which can be recognized by the speaker module; the Smart PA chip divides the frequency of the right channel audio signal into a frequency part which can be identified by the earphone module and cannot be identified by the loudspeaker module, namely a right channel low-frequency audio signal, and a frequency part which cannot be identified by the earphone module and can be identified by the loudspeaker module, namely a right channel high-frequency audio signal, according to the frequency parameter range of the audio signal which can be identified by the earphone module and the frequency parameter range of the audio signal which can be identified by the loudspeaker module;
the frequency parameter range of the audio signal which can be identified by the earphone module and the frequency parameter range of the audio signal which can be identified by the loudspeaker module are parameters which are set by manufacturers in a factory.
Step 303, sending the first part and the second part of the first channel audio signal to an earphone module, outputting the first part and the second part of the second channel audio signal through the earphone module, sending the first part and the second part of the second channel audio signal to a speaker module, and outputting the first part and the second part through the speaker module.
The terminal sends the first part and the second part of the first sound channel audio signal to an earphone module, outputs the first part and the second part of the second sound channel audio signal through the earphone module, and sends the first part and the second part of the second sound channel audio signal to a loudspeaker module and outputs the first part and the second part of the second sound channel audio signal through the loudspeaker module; specifically, the earphone module may output a portion (low-frequency audio signal portion) of the first channel audio signal that matches a frequency portion that can be recognized by itself, and discard a portion (high-frequency audio signal portion) that does not match the frequency portion that can be recognized by itself; the speaker module may output a portion (high-frequency audio signal portion) of the second channel audio signal that corresponds to a frequency portion that can be recognized by itself, and discard a portion (low-frequency audio signal portion) that does not correspond to a frequency portion that can be recognized by itself.
Fig. 6 is a path diagram of an audio signal according to a first embodiment of the method for playing audio, as shown in fig. 6, a receiver module with an F0 inflection point of 350Hz and a power peak of 1W, and a speaker module with an F0 inflection point of 800Hz and a power peak of 3.4W are disposed on a terminal; the Smart PA chip sends the two parts of the left channel audio signal after frequency division to the earphone module and sends the two parts of the right channel audio signal after frequency division to the loudspeaker module; the earphone module outputs the left channel low-frequency audio signal part which can be identified by the earphone module, abandons the left channel high-frequency audio signal part which cannot be identified by the earphone module, outputs the right channel high-frequency audio signal part which can be identified by the earphone module, and abandons the right channel low-frequency audio signal part which cannot be identified by the earphone module.
Fig. 7 is a flowchart of a Smart PA chip according to a first embodiment of a method for playing audio in the present invention, and as shown in fig. 7, the Smart PA chip not only can separate a sound channel from an audio signal and perform frequency division, but also can protect a power amplifier device, obtain a feedback signal sent by a headphone module and a feedback signal sent by a speaker module, detect the feedback signal obtained in real time through a Box modeling data algorithm of the Smart PA chip, dynamically adjust an output power corresponding to the frequency-divided audio signal to be equal to a power peak of the power amplifier device, and avoid a risk of burning the device when the maximum performance of the power amplifier device is exerted; the Box modeling is a group of data of the limit vibration amplitude of the current Box device on a specific sweep frequency signal, the vibration amplitude is measured by using a laser range finder, and a Smart PA chip takes the vibration amplitude as a basis to increase the volume to the maximum under the condition of ensuring that the sound amplitude does not exceed the maximum bearing capacity of the power amplifier.
The low-frequency audio signal part missing from the loudspeaker module is compensated through the earphone module, the low-frequency characteristic is exerted, and under the condition that the industrial setting structure of the terminal is limited (because the double loudspeaker modules cannot be arranged in the terminal with limited space), the characteristic of wide frequency range after the earphone module and the loudspeaker module are combined is combined, so that the audio compensation effect is achieved, and the stereo sound effect is also achieved.
According to the method for playing the audio, provided by the embodiment of the invention, the acquired audio signals are separated to obtain a first channel audio signal and a second channel audio signal; processing the first channel audio signal and the second channel audio signal to obtain a first part and a second part of the first channel audio signal and obtain a first part and a second part of the second channel audio signal; sending the first part and the second part of the first channel audio signal to an earphone module, outputting the first part and the second part of the second channel audio signal through the earphone module, sending the first part and the second part of the second channel audio signal to a loudspeaker module, and outputting the first part and the second part through the loudspeaker module; the earphone module compensates the low-frequency audio signal part missing from the loudspeaker module, the low-frequency characteristic is exerted, under the condition that the industrial setting structure of the terminal is limited (because the double loudspeaker modules cannot be arranged in the terminal with limited space), the characteristic with a wide frequency range after the earphone module and the loudspeaker module are combined is combined, the compensation effect is achieved on the audio, the played audio reaches or is closer to the ideal sound effect, the stereo sound effect is achieved, and the user experience is improved.
Example two
To further illustrate the object of the present invention, the above embodiments are further illustrated.
In the embodiment of the invention, the terminal is exemplified by a smart phone, the earphone module is an earphone with an F0 inflection point of 350Hz and a power peak value of 1W, and the speaker module is a speaker with an F0 inflection point of 800Hz and a power peak value of 3.4W.
Fig. 8 is a flowchart of a second method for playing audio according to the present invention, and as shown in fig. 8, the method for playing audio according to the present invention may include the following steps:
step 801, acquiring an audio signal.
A music player in the smart phone outputs an audio signal, and an acquisition module acquires the audio signal.
Step 802, separating the acquired audio signals to obtain a left channel audio signal part and a right channel audio signal part.
A Smart PA chip in the Smart phone can obtain an audio signal through an Inter-IC Sound (I2S) and a two-wire serial bus (I2C) which are built in an Integrated Circuit; the Smart PA chip judges whether a switch pin of the chip is in a single-channel mode or a stereo-channel mode, wherein the single-channel mode or the stereo-channel mode can be set by a user in advance, and in addition, which channel enters a receiver or a loudspeaker can also be set by the user; and when the Smart PA chip determines that the working mode is the stereo mode, performing left-right channel separation on the acquired audio signal to obtain a left-channel audio signal part and a right-channel audio signal part.
And step 803, performing frequency division processing on the left channel audio signal part and the right channel audio signal part to obtain a left channel low-frequency audio signal part and a high-frequency audio signal part, and obtain a right channel low-frequency audio signal part and a high-frequency audio signal part.
The Smart PA chip obtains a low-frequency audio signal part of a left sound channel, a high-frequency audio signal part of the left sound channel, a low-frequency audio signal part of a right sound channel and a high-frequency audio signal part of the right sound channel according to parameter ranges of a receiver and a loudspeaker on the Smart phone; wherein the earpiece is capable of identifying the low frequency audio signal portion of the left channel and the speaker is capable of identifying the high frequency audio signal portion of the right channel.
The Smart PA chip can acquire a feedback signal sent by a receiver and a feedback signal sent by a loudspeaker, the feedback signals acquired in real time are detected through a Box modeling data algorithm, the output power corresponding to the audio signal after frequency division is dynamically adjusted to be equal to the power peak value of the power amplifier device, and the danger of burning the device is avoided under the condition that the maximum performance of the power amplifier device is exerted; for example, the obtained power peak value of the receiver is 1W, and at this time, the maximum power value of the low-frequency audio signal part of the left channel can be dynamically adjusted to 1W, so that the maximum performance of the receiver is exerted; the peak value of the acquired power of the loudspeaker is 3.4W, and at this time, the maximum power value of the high-frequency audio signal part of the right channel can be dynamically adjusted to 3.4W, so that the maximum performance of the loudspeaker is exerted.
Furthermore, if the smart phone is designed to have a waterproof function, the space sealing of the receiver can be completely ensured, and the low-frequency characteristic of the receiver can be fully exerted.
And step 804, sending the left channel low-frequency audio signal part and the high-frequency audio signal part to a receiver, outputting the signals through the receiver, sending the right channel low-frequency audio signal part and the high-frequency audio signal part to a loudspeaker, and outputting the signals through the loudspeaker.
The Smart PA chip sends the left channel low-frequency audio signal part and the high-frequency audio signal part to the receiver, the receiver can output the left channel low-frequency audio signal part which can be identified by the receiver, and the left channel high-frequency audio signal part which cannot be identified by the receiver is abandoned; meanwhile, the Smart PA chip sends the right channel low-frequency audio signal part and the high-frequency audio signal part to the loudspeaker, the loudspeaker outputs the right channel high-frequency audio signal part which can be identified by the loudspeaker, and the right channel low-frequency audio signal part which cannot be identified by the loudspeaker is abandoned. The earphone compensates the low-frequency audio signal part missing from the loudspeaker, the low-frequency characteristic is exerted, and under the condition that the industrial setting structure of the terminal is limited (because double loudspeakers cannot be arranged in the terminal with limited space), the characteristic of wide frequency range after the earphone and the loudspeaker are combined is combined, so that the audio compensation effect is achieved, and the stereo sound effect is achieved.
According to the method for playing the audio, the acquired audio signals are separated by using a Smart PA chip, and a left channel audio signal part and a right channel audio signal part are obtained; performing frequency division processing on the left channel audio signal part and the right channel audio signal part to obtain a left channel low-frequency audio signal part and a high-frequency audio signal part, and obtaining a right channel low-frequency audio signal part and a high-frequency audio signal part; the left channel low-frequency audio signal part and the high-frequency audio signal part are sent to a receiver module and output through the receiver module, and the right channel low-frequency audio signal part and the high-frequency audio signal part are sent to a loudspeaker module and output through the loudspeaker module; combine the earphone module with the speaker module, utilize the earphone module to compensate the low frequency audio signal part of speaker module disappearance, performance low frequency characteristic, under the limited (because can't set up two speaker modules in the limited terminal in space) condition of industry setting structure at terminal, combine the characteristic that has wide frequency range behind earphone module and the speaker module combination, not only have the compensation effect to the audio frequency, the audio frequency that makes the broadcast reaches or more is close to ideal sound effect, but also realized the stereophonic effect, user experience has been improved.
EXAMPLE III
Fig. 9 is a schematic structural diagram of an embodiment of a terminal for playing audio according to the present invention, and as shown in fig. 9, a terminal 09 for playing audio according to an embodiment of the present invention includes: an audio processing module 91, an earphone module 92 and a loudspeaker module 93; wherein,
the audio processing module 91 is configured to separate the acquired audio signals to obtain a first channel audio signal and a second channel audio signal;
the audio processing module 91 is further configured to process the first channel audio signal and the second channel audio signal to obtain a first portion and a second portion of the first channel audio signal, and obtain a first portion and a second portion of the second channel audio signal;
the audio processing module 91 is further configured to send the first part and the second part of the first channel audio signal to the earpiece module 92, output through the earpiece module 92, send the first part and the second part of the second channel audio signal to the speaker module 93, and output through the speaker module 93.
Further, the terminal further includes: an acquisition module 94; wherein,
the obtaining module 94 is configured to obtain the audio signal.
Further, the audio processing module 91 is specifically configured to perform channel separation on the acquired audio signal through an intelligent amplification power unit Smart PA chip;
and the Smart PA chip is further specifically configured to perform frequency division processing on the first channel audio signal and the second channel audio signal.
Further, the first channel audio signal is a left channel audio signal, and the second channel audio signal is a right channel audio signal; or,
the first channel audio signal is a right channel audio signal, and the second channel audio signal is a left channel audio signal.
Further, the first part is a frequency part which can be identified by the earpiece module 92 and which cannot be identified by the speaker module 93, and the second part is a frequency part which cannot be identified by the earpiece module 92 and which can be identified by the speaker module 93; or,
the first portion is a frequency portion that is not recognized by the earpiece module 92 and that is recognized by the speaker module 93, and the second portion is a frequency portion that is recognized by the earpiece module 92 and that is not recognized by the speaker module 93.
The terminal of this embodiment may be configured to execute the technical solution of the above-described method embodiment, and the implementation principle and the technical effect are similar, which are not described herein again.
In practical applications, the audio Processing module 91 and the obtaining module 94 can be implemented by a Central Processing Unit (CPU), a microprocessor Unit (MPU), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), or the like in the terminal.
Fig. 10 is a schematic structural diagram of an embodiment of an apparatus for playing audio according to the present invention, and as shown in fig. 10, the apparatus 010 for playing audio according to the embodiment of the present invention includes an interface 101, a bus 102, a memory 103, and a processor 104, where the interface 101, the memory 103, and the processor 104 are connected via the bus 102, the memory 103 is used to store instructions, and the processor 104 reads the instructions to:
separating the acquired audio signals to obtain a first channel audio signal and a second channel audio signal;
processing the first channel audio signal and the second channel audio signal to obtain a first part and a second part of the first channel audio signal and obtain a first part and a second part of the second channel audio signal;
and sending the first part and the second part of the first sound channel audio signal to an earphone, outputting the first part and the second part of the second sound channel audio signal to a loudspeaker through the earphone, and outputting the first part and the second part through the loudspeaker.
Further, the processor 104 reads the instructions to:
the audio signal is acquired.
Further, the processor 104 reads the instruction to specifically:
carrying out sound channel separation on the obtained audio signal through an intelligent amplification power device Smart PA chip;
the processing the first channel audio signal and the second channel audio signal includes:
and performing frequency division processing on the first channel audio signal and the second channel audio signal through the Smart PA chip.
Further, the first channel audio signal is a left channel audio signal, and the second channel audio signal is a right channel audio signal; or,
the first channel audio signal is a right channel audio signal, and the second channel audio signal is a left channel audio signal.
Further, the first part is a frequency part which can be identified by the earphone module and cannot be identified by the loudspeaker, and the second part is a frequency part which cannot be identified by the earphone module and can be identified by the loudspeaker; or,
the first part is a frequency part which cannot be identified by the earphone and can be identified by the loudspeaker, and the second part is a frequency part which can be identified by the earphone and can not be identified by the loudspeaker.
The apparatus of this embodiment may be configured to implement the technical solutions of the above-described method embodiments, and the implementation principles and technical effects are similar, which are not described herein again.
It should be noted that, in this document, 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 like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A terminal for playing audio, the terminal comprising:
the audio processing module is used for separating the acquired audio signals to obtain a first channel audio signal and a second channel audio signal;
the audio processing module is further configured to process the first channel audio signal and the second channel audio signal to obtain a first portion and a second portion of the first channel audio signal, and obtain a first portion and a second portion of the second channel audio signal;
the audio processing module is further configured to send the first part and the second part of the first channel audio signal to an earpiece module, output the first part and the second part of the second channel audio signal through the earpiece module, send the first part and the second part of the second channel audio signal to a speaker module, and output the first part and the second part through the speaker module;
the audio processing module is further configured to obtain a feedback signal sent by the earphone module and a feedback signal sent by the speaker module; adjusting the output power of the first part of the first channel audio signal or the output power of the second part of the first channel audio signal to the power peak value of the earphone module according to the sending feedback signal of the earphone module and outputting the power peak value; and adjusting the output power of the first part of the second channel audio signal or the output power of the second part of the second channel audio signal to the power peak value of the loudspeaker according to the feedback signal sent by the loudspeaker module and outputting the adjusted output power.
2. The terminal of claim 1, further comprising:
and the acquisition module is used for acquiring the audio signal.
3. The terminal according to claim 1, wherein the audio processing module is specifically configured to perform channel separation on the acquired audio signal through an intelligent amplification power device;
and the intelligent amplification power device is further specifically configured to perform frequency division processing on the first channel audio signal and the second channel audio signal.
4. A terminal according to claim 1, 2 or 3, wherein the first channel audio signal is a left channel audio signal and the second channel audio signal is a right channel audio signal; or,
the first channel audio signal is a right channel audio signal, and the second channel audio signal is a left channel audio signal.
5. A terminal according to claim 1, 2 or 3, wherein the first part is a frequency part which is recognizable by the earpiece module and unrecognizable by the speaker module, and the second part is a frequency part which is unrecognizable by the earpiece module and recognizable by the speaker module; or,
the first part is a frequency part which cannot be identified by the earphone module and can be identified by the speaker module, and the second part is a frequency part which can be identified by the earphone module and can not be identified by the speaker module.
6. A method of playing audio, the method comprising:
separating the acquired audio signals to obtain a first channel audio signal and a second channel audio signal;
processing the first channel audio signal and the second channel audio signal to obtain a first part and a second part of the first channel audio signal and obtain a first part and a second part of the second channel audio signal;
sending the first part and the second part of the first channel audio signal to an earphone module, outputting the first part and the second part of the second channel audio signal through the earphone module, sending the first part and the second part of the second channel audio signal to a loudspeaker module, and outputting the first part and the second part through the loudspeaker module;
acquiring a feedback signal sent by the earphone module and a feedback signal sent by the loudspeaker module; adjusting the output power of the first part of the first channel audio signal or the output power of the second part of the first channel audio signal to the power peak value of the earphone module according to the sending feedback signal of the earphone module and outputting the power peak value; and adjusting the output power of the first part of the second channel audio signal or the output power of the second part of the second channel audio signal to the power peak value of the loudspeaker according to the feedback signal sent by the loudspeaker module and outputting the adjusted output power.
7. The method of claim 6, wherein prior to the channel separating the acquired audio signals, the method further comprises:
the audio signal is acquired.
8. The method of claim 6, wherein the separating the acquired audio signals comprises:
carrying out sound channel separation on the obtained audio signal through an intelligent amplification power device;
the processing the first channel audio signal and the second channel audio signal includes:
and performing frequency division processing on the first channel audio signal and the second channel audio signal through the intelligent amplification power device.
9. The method of claim 6, 7 or 8, wherein the first channel audio signal is a left channel audio signal and the second channel audio signal is a right channel audio signal; or,
the first channel audio signal is a right channel audio signal, and the second channel audio signal is a left channel audio signal.
10. The method of claim 6, 7 or 8, wherein the first portion is a frequency portion that is recognizable by the earpiece module and unrecognizable by the speaker module, and the second portion is a frequency portion that is unrecognizable by the earpiece module and recognizable by the speaker module; or,
the first part is a frequency part which cannot be identified by the earphone module and can be identified by the speaker module, and the second part is a frequency part which can be identified by the earphone module and can not be identified by the speaker module.
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| CN106506855B (en) * | 2016-11-30 | 2020-04-14 | 努比亚技术有限公司 | Method and device for realizing stereo balance and mobile terminal |
| CN106502623A (en) * | 2016-12-01 | 2017-03-15 | 北京小米移动软件有限公司 | Audio output device and method |
| CN107124674B (en) * | 2017-06-20 | 2019-11-08 | 歌尔科技有限公司 | A kind of audio-frequency inputting method of bluetooth headset, device and bluetooth headset |
| CN108810860B (en) * | 2018-05-22 | 2022-05-17 | 维沃移动通信有限公司 | Audio transmission method, terminal equipment and main earphone |
| CN110874203A (en) * | 2018-09-04 | 2020-03-10 | 中兴通讯股份有限公司 | Screen sounding controller, method, device, terminal and storage medium |
| CN110677770B (en) * | 2019-08-30 | 2021-01-12 | 维沃移动通信有限公司 | Sound production control method, electronic device, and medium |
| CN112788168A (en) * | 2019-11-04 | 2021-05-11 | 深圳市万普拉斯科技有限公司 | Audio output module and electronic equipment |
| CN113115178B (en) * | 2021-05-12 | 2022-11-01 | 西安易朴通讯技术有限公司 | Audio signal processing method and device |
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