WO2022149706A1

WO2022149706A1 - Audio data processing method and electronic device for supporting same

Info

Publication number: WO2022149706A1
Application number: PCT/KR2021/016549
Authority: WO
Inventors: 김진영; 옥동문; 윤영정; 이민; 이순규
Original assignee: 삼성전자 주식회사
Priority date: 2021-01-11
Filing date: 2021-11-12
Publication date: 2022-07-14
Also published as: KR20220101427A

Abstract

Disclosed is an electronic device comprising: a plurality of audio input devices including a first input device and a second input device; a plurality of an audio output devices; a coprocessor including a plurality of input ports and output ports, a synthesis unit, an encoder and a decoder; a main processor; and a memory. The processor can be configured to transmit, to each of a first input port and a second input port included in the plurality of input ports, first audio data acquired using the first input device, and second audio data acquired using the second input device, and transmit, to the coprocessor, a control signal for causing the synthesis unit to synthesize a plurality of pieces of audio data. The coprocessor can be configured to capture the second audio data received through the second input port, generate synthesized data by synthesizing, through the synthesis unit, the captured second audio data and the first audio data received through the first input port, and encode the synthesized data by using the encoder and transmit same to a first application. Other various embodiments identified through the specification are possible.

Description

Audio data processing method and electronic device supporting the same

Various embodiments disclosed in this document relate to an audio data processing method and an electronic device supporting the same.

With the recent development of digital technology, various electronic devices capable of communicating and processing personal information while moving such as a mobile communication terminal, a smart phone, and a tablet personal computer (PC) have been released.

The electronic device may provide various functions to the user by using data obtained from a plurality of input devices. For example, the electronic device acquires audio data using a plurality of audio input devices (eg, a microphone, a Bluetooth receiving circuit, or a USB circuit) to perform various functions (eg, recording and/or media playback). can provide

When the electronic device acquires data using a plurality of input devices, a plurality of data processing paths may be required to process respective data acquired using different input devices. For example, the electronic device uses different data processing paths (eg, an input data processing path or an output data processing path) corresponding to each data to process respective data acquired using different input devices. may need For example, the electronic device may require at least one input data processing path for performing a specified processing operation on the acquired data. As another example, the electronic device may require at least one output data processing path to output processed data to the outside. As the number of input devices operating in the electronic device increases, it is inconvenient to additionally create and/or establish a data processing path.

In addition, when the number of data processing paths increases, power and/or load (eg, load) required for the electronic device to process data may increase. Accordingly, latency or data distortion (eg, data distortion) may occur in an audio data processing process that must be performed within a relatively short time.

An electronic device according to an embodiment disclosed in this document includes a plurality of audio input devices including a first input device and a second input device, an audio output device, a plurality of input ports, an output port, a synthesizer, an encoder, and It may include a coprocessor including a decoder, a main processor operatively coupled to the coprocessor, and a memory. For example, the processor may include first audio data acquired using the first input device and second audio data acquired using the second input device to a first input port included in the plurality of input ports. and a control signal to be transmitted to a second input port, respectively, and a control signal for the synthesizing unit to synthesize a plurality of audio data is configured to be transmitted to the coprocessor, wherein the coprocessor is configured to transmit the second input port received through the second input port. capturing audio data, and mixing the captured second audio data and the first audio data received through the first input port using the synthesizer to generate synthesized data; It may be configured to encode data using the encoder and transmit it to the first application.

A method of processing audio data by an electronic device according to an embodiment disclosed herein includes a plurality of first audio data acquired using a first input device and second audio data acquired using a second input device transmitting to the first input port and the second input port respectively included in the input port of An operation of capturing the second audio data received through an input port, and mixing the captured second audio data and the first audio data received through the first input port using the synthesizing unit ) to generate the synthesized data, and encoding the synthesized data using the encoder and transmitting it to the first application.

Power required by a processor (eg, an application processor (AP) or a digital signal processor (DSP)) when an electronic device according to an embodiment disclosed in this document processes audio data substantially simultaneously through a plurality of input devices Alternatively, the data can be efficiently processed by reducing the load level.

An electronic device according to an embodiment disclosed in this document selectively uses a separately configured synthesizing unit without adding an audio data processing path as many as the number of audio data for audio data acquired using a plurality of input devices. By controlling the data processing path, it is possible to provide an optimized audio service.

In addition, various effects directly or indirectly identified through this document may be provided.

1 is a block diagram of an electronic device in a network environment, according to various embodiments of the present disclosure;

2 is a block diagram of an audio module, according to various embodiments.

3 is a block diagram illustrating components included in an electronic device according to an exemplary embodiment.

4 is a diagram illustrating a software layer of an electronic device according to an exemplary embodiment.

5 is a block diagram illustrating an audio data processing process of an electronic device according to an exemplary embodiment.

6 is a block diagram illustrating an audio data processing process of an electronic device according to an exemplary embodiment.

7 is a block diagram illustrating an audio data processing process of an electronic device according to an exemplary embodiment.

8 is a flowchart illustrating an audio data processing operation of an electronic device according to an exemplary embodiment.

9 is a flowchart illustrating an audio data processing operation of an electronic device according to an exemplary embodiment.

10 is a block diagram illustrating a program according to various embodiments.

In connection with the description of the drawings, the same or similar reference numerals may be used for the same or similar components.

Hereinafter, various embodiments of the present document will be described with reference to the accompanying drawings. However, this is not intended to limit the technology described in this document to specific embodiments, and it should be understood that various modifications, equivalents, and/or alternatives of the embodiments of this document are included. .

1 is a block diagram of an electronic device 101 in a network environment 100, according to various embodiments. Referring to FIG. 1 , in a network environment 100 , an electronic device 101 communicates with an electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or a second network 199 . It may communicate with the electronic device 104 or the server 108 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108 . According to an embodiment, the electronic device 101 includes a processor 120 , a memory 130 , an input module 150 , a sound output module 155 , a display module 160 , an audio module 170 , and a sensor module ( 176), interface 177, connection terminal 178, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196 , or an antenna module 197 . In some embodiments, at least one of these components (eg, the connection terminal 178 ) may be omitted or one or more other components may be added to the electronic device 101 . In some embodiments, some of these components (eg, sensor module 176 , camera module 180 , or antenna module 197 ) are integrated into one component (eg, display module 160 ). can be

The processor 120, for example, executes software (eg, a program 140) to execute at least one other component (eg, a hardware or software component) of the electronic device 101 connected to the processor 120. It can control and perform various data processing or operations. According to one embodiment, as at least part of data processing or operation, the processor 120 converts commands or data received from other components (eg, the sensor module 176 or the communication module 190 ) to the volatile memory 132 . may be stored in , process commands or data stored in the volatile memory 132 , and store the result data in the non-volatile memory 134 . According to an embodiment, the processor 120 is the main processor 121 (eg, a central processing unit or an application processor) or a secondary processor 123 (eg, a graphic processing unit, a neural network processing unit (eg, a graphic processing unit, a neural network processing unit) a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor). For example, when the electronic device 101 includes the main processor 121 and the sub-processor 123 , the sub-processor 123 uses less power than the main processor 121 or is set to be specialized for a specified function. can The auxiliary processor 123 may be implemented separately from or as a part of the main processor 121 .

The secondary processor 123 may, for example, act on behalf of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or when the main processor 121 is active (eg, executing an application). ), together with the main processor 121, at least one of the components of the electronic device 101 (eg, the display module 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the related functions or states. According to an embodiment, the coprocessor 123 (eg, an image signal processor or a communication processor) may be implemented as part of another functionally related component (eg, the camera module 180 or the communication module 190 ). have. According to an embodiment, the auxiliary processor 123 (eg, a neural network processing device) may include a hardware structure specialized for processing an artificial intelligence model. Artificial intelligence models can be created through machine learning. Such learning may be performed, for example, in the electronic device 101 itself on which artificial intelligence is performed, or may be performed through a separate server (eg, the server 108). The learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but in the above example not limited The artificial intelligence model may include a plurality of artificial neural network layers. Artificial neural networks include deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), It may be one of deep Q-networks or a combination of two or more of the above, but is not limited to the above example. The artificial intelligence model may include, in addition to, or alternatively, a software structure in addition to the hardware structure.

The memory 130 may store various data used by at least one component (eg, the processor 120 or the sensor module 176 ) of the electronic device 101 . The data may include, for example, input data or output data for software (eg, the program 140 ) and instructions related thereto. The memory 130 may include a volatile memory 132 or a non-volatile memory 134 .

The program 140 may be stored as software in the memory 130 , and may include, for example, an operating system 142 , middleware 144 , or an application 146 .

The input module 150 may receive a command or data to be used by a component (eg, the processor 120 ) of the electronic device 101 from the outside (eg, a user) of the electronic device 101 . The input module 150 may include, for example, a microphone, a mouse, a keyboard, a key (eg, a button), or a digital pen (eg, a stylus pen).

The sound output module 155 may output a sound signal to the outside of the electronic device 101 . The sound output module 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from or as part of the speaker.

The display module 160 may visually provide information to the outside (eg, a user) of the electronic device 101 . The display module 160 may include, for example, a control circuit for controlling a display, a hologram device, or a projector and a corresponding device. According to an embodiment, the display module 160 may include a touch sensor configured to sense a touch or a pressure sensor configured to measure the intensity of a force generated by the touch.

The audio module 170 may convert a sound into an electric signal or, conversely, convert an electric signal into a sound. According to an embodiment, the audio module 170 acquires a sound through the input module 150 , or an external electronic device (eg, a sound output module 155 ) connected directly or wirelessly with the electronic device 101 . The electronic device 102) (eg, a speaker or headphones) may output a sound.

The sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101 or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the sensed state. can do. According to an embodiment, the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, a humidity sensor, or an illuminance sensor.

The interface 177 may support one or more specified protocols that may be used by the electronic device 101 to directly or wirelessly connect with an external electronic device (eg, the electronic device 102 ). According to an embodiment, the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 178 may include a connector through which the electronic device 101 can be physically connected to an external electronic device (eg, the electronic device 102 ). According to an embodiment, the connection terminal 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

The haptic module 179 may convert an electrical signal into a mechanical stimulus (eg, vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic sense. According to an embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 180 may capture still images and moving images. According to an embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 188 may manage power supplied to the electronic device 101 . According to an embodiment, the power management module 188 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

The battery 189 may supply power to at least one component of the electronic device 101 . According to one embodiment, battery 189 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.

The communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108). It can support establishment and communication performance through the established communication channel. The communication module 190 may include one or more communication processors that operate independently of the processor 120 (eg, an application processor) and support direct (eg, wired) communication or wireless communication. According to one embodiment, the communication module 190 is a wireless communication module 192 (eg, a cellular communication module, a short-range communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (eg, : It may include a local area network (LAN) communication module, or a power line communication module). A corresponding communication module among these communication modules is a first network 198 (eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 199 (eg, legacy It may communicate with the external electronic device 104 through a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (eg, a telecommunication network such as a LAN or a WAN). These various types of communication modules may be integrated into one component (eg, a single chip) or may be implemented as a plurality of components (eg, multiple chips) separate from each other. The wireless communication module 192 uses subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199 . The electronic device 101 may be identified or authenticated.

The wireless communication module 192 may support a 5G network after a 4G network and a next-generation communication technology, for example, a new radio access technology (NR). NR access technology includes high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and access to multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency) -latency communications)). The wireless communication module 192 may support a high frequency band (eg, mmWave band) to achieve a high data rate, for example. The wireless communication module 192 uses various techniques for securing performance in a high-frequency band, for example, beamforming, massive multiple-input and multiple-output (MIMO), all-dimensional multiplexing. It may support technologies such as full dimensional MIMO (FD-MIMO), an array antenna, analog beam-forming, or a large scale antenna. The wireless communication module 192 may support various requirements defined in the electronic device 101 , an external electronic device (eg, the electronic device 104 ), or a network system (eg, the second network 199 ). According to an embodiment, the wireless communication module 192 may include a peak data rate (eg, 20 Gbps or more) for realizing eMBB, loss coverage (eg, 164 dB or less) for realizing mMTC, or U-plane latency for realizing URLLC ( Example: Downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less) can be supported.

The antenna module 197 may transmit or receive a signal or power to the outside (eg, an external electronic device). According to an embodiment, the antenna module 197 may include an antenna including a conductor formed on a substrate (eg, a PCB) or a radiator formed of a conductive pattern. According to an embodiment, the antenna module 197 may include a plurality of antennas (eg, an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 198 or the second network 199 is connected from the plurality of antennas by, for example, the communication module 190 . can be selected. A signal or power may be transmitted or received between the communication module 190 and an external electronic device through the selected at least one antenna. According to some embodiments, other components (eg, a radio frequency integrated circuit (RFIC)) other than the radiator may be additionally formed as a part of the antenna module 197 .

According to various embodiments, the antenna module 197 may form a mmWave antenna module. According to one embodiment, the mmWave antenna module comprises a printed circuit board, an RFIC disposed on or adjacent to a first side (eg, bottom side) of the printed circuit board and capable of supporting a designated high frequency band (eg, mmWave band); and a plurality of antennas (eg, an array antenna) disposed on or adjacent to a second side (eg, top or side) of the printed circuit board and capable of transmitting or receiving signals of the designated high frequency band. can do.

At least some of the components are connected to each other through a communication method between peripheral devices (eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and a signal ( e.g. commands or data) can be exchanged with each other.

According to an embodiment, the command or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199 . Each of the external

electronic devices

102 or 104 may be the same as or different from the electronic device 101 . According to an embodiment, all or a part of operations executed in the electronic device 101 may be executed in one or more external

electronic devices

102 , 104 , or 108 . For example, when the electronic device 101 needs to perform a function or service automatically or in response to a request from a user or other device, the electronic device 101 may perform the function or service itself instead of executing the function or service itself. Alternatively or additionally, one or more external electronic devices may be requested to perform at least a part of the function or the service. One or more external electronic devices that have received the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit a result of the execution to the electronic device 101 . The electronic device 101 may process the result as it is or additionally and provide it as at least a part of a response to the request. For this purpose, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used. The electronic device 101 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing. In another embodiment, the external electronic device 104 may include an Internet of things (IoT) device. The server 108 may be an intelligent server using machine learning and/or neural networks. According to an embodiment, the external electronic device 104 or the server 108 may be included in the second network 199 . The electronic device 101 may be applied to an intelligent service (eg, smart home, smart city, smart car, or health care) based on 5G communication technology and IoT-related technology.

The electronic device according to various embodiments disclosed in this document may have various types of devices. The electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance device. The electronic device according to the embodiment of the present document is not limited to the above-described devices.

The various embodiments of this document and terms used therein are not intended to limit the technical features described in this document to specific embodiments, but it should be understood to include various modifications, equivalents, or substitutions of the embodiments. In connection with the description of the drawings, like reference numerals may be used for similar or related components. The singular form of the noun corresponding to the item may include one or more of the item, unless the relevant context clearly dictates otherwise. As used herein, "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C", and "A , B, or C," each of which may include any one of the items listed together in the corresponding one of the phrases, or all possible combinations thereof. Terms such as "first", "second", or "first" or "second" may simply be used to distinguish an element from other elements in question, and may refer elements to other aspects (e.g., importance or order) is not limited. It is said that one (eg, first) component is “coupled” or “connected” to another (eg, second) component, with or without the terms “functionally” or “communicatively”. When referenced, it means that one component can be connected to the other component directly (eg by wire), wirelessly, or through a third component.

The term “module” used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeable with terms such as, for example, logic, logic block, component, or circuit. can be used as A module may be an integrally formed part or a minimum unit or a part of the part that performs one or more functions. For example, according to an embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of the present document include one or more instructions stored in a storage medium (eg, internal memory 136 or external memory 138) readable by a machine (eg, electronic device 101). may be implemented as software (eg, the program 140) including For example, the processor (eg, the processor 120 ) of the device (eg, the electronic device 101 ) may call at least one of the one or more instructions stored from the storage medium and execute it. This makes it possible for the device to be operated to perform at least one function according to the called at least one command. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The device-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' only means that the storage medium is a tangible device and does not contain a signal (eg, electromagnetic wave), and this term is used in cases where data is semi-permanently stored in the storage medium and It does not distinguish between temporary storage cases.

According to one embodiment, the method according to various embodiments disclosed in this document may be provided in a computer program product (computer program product). Computer program products may be traded between sellers and buyers as commodities. The computer program product is distributed in the form of a device-readable storage medium (eg compact disc read only memory (CD-ROM)), or via an application store (eg Play Store™) or on two user devices ( It can be distributed (eg downloaded or uploaded) directly, online between smartphones (eg: smartphones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily created in a machine-readable storage medium such as a memory of a server of a manufacturer, a server of an application store, or a relay server.

According to various embodiments, each component (eg, a module or a program) of the above-described components may include a singular or a plurality of entities, and some of the plurality of entities may be separately disposed in other components. have. According to various embodiments, one or more components or operations among the above-described corresponding components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (eg, a module or a program) may be integrated into one component. In this case, the integrated component may perform one or more functions of each component of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. . According to various embodiments, operations performed by a module, program, or other component are executed sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations are executed in a different order, or omitted. , or one or more other operations may be added.

2 is a block diagram 200 of an audio module 170, in accordance with various implementations. Referring to FIG. 2 , the audio module 170 may include, for example, an audio input interface 210 , an audio input mixer 220 , an audio output mixer 260 , or an audio output interface 270 . .

The audio input interface 210 is acquired from the outside of the electronic device 101 as part of the input module 150 or through a microphone (eg, a dynamic microphone, a condenser microphone, or a piezo microphone) configured separately from the electronic device 101 . An audio signal corresponding to the sound may be received. For example, when the audio signal is obtained from the external electronic device 102 (eg, a headset or a microphone), the audio input interface 210 is directly connected to the external electronic device 102 through the connection terminal 178 . , or wirelessly (eg, via Bluetooth communication) through the wireless communication module 192 to receive an audio signal. According to an embodiment, the audio input interface 210 may receive a control signal (eg, a volume adjustment signal received through an input button) related to an audio signal obtained from the external electronic device 102 . The audio input interface 210 may include a plurality of audio input channels, and may receive a different audio signal for each corresponding audio input channel among the plurality of audio input channels. According to an embodiment, additionally or alternatively, the audio input interface 210 may receive an audio signal from another component of the electronic device 101 (eg, the processor 120 or the memory 130 ). For example, the electronic device may include a plurality of audio input interfaces 210 . The plurality of audio input interfaces 210 may be referred to as audio input faces corresponding to different audio input devices (eg, a Bluetooth microphone and/or a USB microphone), respectively. For example, the audio input interface 210 corresponding to the Bluetooth microphone may receive an audio signal from at least one audio input channel through the Bluetooth microphone. As another example, the audio input interface 210 corresponding to the USB microphone may receive an audio signal from at least one audio input channel through the USB microphone.

The audio input mixer 220 may synthesize a plurality of input audio signals into at least one audio signal. For example, according to an embodiment, the audio input mixer 220 may synthesize a plurality of analog audio signals input through the audio input interface 210 into at least one analog audio signal. For example, the audio input mixer 220 may synthesize a plurality of analog audio signals received through the aforementioned plurality of audio input interfaces 210 into at least one analog audio signal.

The audio signal processor 240 may perform various processing on the digital audio signal received through the audio input mixer 220 or the digital audio signal received from other components of the electronic device 101 . For example, according to one embodiment, the audio signal processor 240 may change a sampling rate for one or more digital audio signals, apply one or more filters, perform interpolation processing, amplify or attenuate all or part of a frequency band, You can perform noise processing (such as noise or echo reduction), changing channels (such as switching between mono and stereo), mixing, or specified signal extraction. According to an embodiment, one or more functions of the audio signal processor 240 may be implemented in the form of an equalizer.

The audio output mixer 260 may synthesize a plurality of audio signals to be output into at least one audio signal. For example, according to an embodiment, the audio output mixer 260 may synthesize a plurality of digital audio signals received through the audio signal processor 240 into at least one digital audio signal.

The audio output interface 270 may output the audio signal synthesized by the audio output mixer 260 to the outside of the electronic device 101 through the sound output module 155 . The sound output module 155 may include, for example, a speaker such as a dynamic driver or a balanced armature driver, or a receiver. According to an embodiment, the sound output module 155 may include a plurality of speakers. In this case, the audio output interface 270 may output an audio signal having a plurality of different channels (eg, stereo or 5.1 channel) through at least some of the plurality of speakers. According to an embodiment, the audio output interface 270 is directly connected to the external electronic device 102 (eg, an external speaker or headset) through the connection terminal 178 or wirelessly through the wireless communication module 192 . to output an audio signal.

According to an embodiment, the audio module 170 does not separately include the audio input mixer 220 or the audio output mixer 260 , and uses at least one function of the audio signal processor 240 to provide a plurality of digital audio signals. At least one digital audio signal may be generated by synthesizing them.

According to an embodiment, the audio module 170 is an audio amplifier (not shown) capable of amplifying an analog audio signal input through the audio input interface 210 or an audio signal to be output through the audio output interface 270 . (eg speaker amplification circuit). According to an embodiment, the audio amplifier may be configured as a module separate from the audio module 170 .

3 is a block diagram 300 of components included in an electronic device according to an exemplary embodiment.

Referring to FIG. 3 , according to an embodiment, an electronic device (eg, the electronic device 101 of FIG. 1 ) includes an application processor 320 (eg, the processor 120 of FIG. 1 ), a memory 330 (eg, the electronic device 101 of FIG. 1 ). : the memory 130 of FIG. 1 ), the audio input device 350 , and/or the audio output device 355 (eg, the audio module 170 of FIG. 1 ). The processor 320 may include a main processor 321 (eg, the main processor 121 of FIG. 1 ) and an auxiliary processor 323 (eg, the auxiliary processor 123 of FIG. 1 ). The processor 320 may be operatively coupled to the memory 330 , the audio input device 350 , and/or the audio output device 355 . The configuration of the electronic device illustrated in FIG. 3 is exemplary and embodiments of the present document are not limited thereto. For example, although the auxiliary processor 323 is illustrated as being implemented separately from the main processor 321 , the auxiliary processor 323 may be implemented as a part and/or included in the main processor 321 . As another example, the electronic device may further include components not shown in FIG. 3 (eg, the communication module 190 of FIG. 1 or the interface 177 of FIG. 1 ).

According to various embodiments of the present disclosure, the application processor 320 is a main processor 321 (eg, a central proceeding unit (CPU)) that processes various processors executed in the electronic device (eg, the main processor 121 of FIG. 1 ). ) and an auxiliary processor 323 (eg, the auxiliary processor 123 of FIG. 1 ) for processing processes related to input/output of audio. The application processor 320 may be implemented as a system on chip (SoC).

According to an embodiment, the application processor 320 may be operatively connected to the memory 330 , the audio input device 350 , and/or the audio output device 355 to operate. For example, the application processor 320 may control an audio data processing function provided by the electronic device using information stored in the memory 330 . The application processor 320 may acquire audio data using the audio input device 350 . For example, the auxiliary processor 323 included in the application processor 320 may be a part of an input module included in the electronic device (eg, the input module 150 of FIG. 1 ) or a microphone configured separately from the electronic device (eg, the input module 150 of FIG. 1 ). : Receive a voice signal corresponding to a sound (eg, a song sound) acquired from an external (eg, user) of the electronic device through a dynamic microphone, a condenser microphone, or a piezo microphone, and use the audio input device 350 to Audio data corresponding to the sound may be obtained. For example, when audio data is obtained from an external electronic device (eg, the electronic device 102 (eg, a headset or a microphone) of FIG. 1 ), the audio input interface (eg, the audio input interface 210 of FIG. 2 ) is Directly through the external electronic device and a connection terminal (eg, the connection terminal 178 of FIG. 1 ) or wirelessly (eg, Bluetooth communication) through a wireless communication module (eg, the wireless communication module 192 of FIG. 1 ) It can be connected to receive a voice signal. According to an embodiment, additionally or alternatively, the audio input interface may receive an audio signal from another component (eg, the application processor 320 or the memory 330 ) of the electronic device. For example, the application processor 320 may convert the audio signal into audio data using an analog-to-digital converter (ADC) 351 included in the audio input device 350 . The application processor 320 transmits audio data obtained using the audio input device 350 to an input port included in the auxiliary processor 323 , and causes the main processor 321 to perform an inter-processor communication (IPC) method. may be set to transmit a control signal to the auxiliary processor 323 by the The control signal transmitted by the main processor 321 may be received and processed by a designated layer (eg, the synthesis unit 550 of FIG. 5 ) of the auxiliary processor 323 . The auxiliary processor 323 may be configured to output mixing data using the audio output device 355 . The synthesized data may be referred to as audio data generated by synthesizing at least one audio data transmitted from the audio input device 350 . For example, the application processor 320 may convert the synthesized data into speech using a digital-to-analog converter (DAC) 352 included in the audio output device 355 . According to an embodiment, the auxiliary processor 323 may output a voice signal using the audio output device 355 . For example, the auxiliary processor 323 may externally output a voice signal corresponding to the synthesized data through a sound output module (eg, the sound output module 155 of FIG. 1 ). For example, the sound output module may include a speaker (SPK) or a receiver (RCV) such as a dynamic driver or a balanced armature driver. When the sound output module includes a plurality of speakers, the auxiliary processor 323 outputs an audio signal having a plurality of different channels (eg, stereo or 5.1 channel) through at least some of the plurality of speakers. to control the audio output interface (eg, the audio output interface 270 of FIG. 2 ). For example, the audio output interface may be directly connected to an external electronic device (eg, an external speaker or headset) through a connection terminal or wirelessly through a wireless communication module to output a voice signal. A description of the voice data processing path of the main processor 321 and the auxiliary processor 323 may be disclosed in more detail with reference to FIGS. 4 to 7 to be described later.

According to an embodiment, the auxiliary processor 323 may be implemented and operated separately from or as a part of the main processor 321 . The coprocessor 323 (eg, a digital signal processor (DSP)) may be implemented as part of another functionally related component (eg, the audio module 170 of FIG. 1 ). The coprocessor 323 may include a hardware component and/or a software component specialized for a specified function (eg, an audio data processing function). For example, the components included in the coprocessor 323 include an input port (eg, input port 438 in FIG. 4 ), an output port (eg, output port 439 in FIG. 4 ), an encoder/decoder (eg, input port 438 in FIG. 4 ). : may include at least one of the encoder/decoder 431 of FIG. 4 ), a processing unit (eg, the processing unit 434 of FIG. 4 ), and/or a synthesis unit (eg, the synthesis unit 550 of FIG. 5 ). . The auxiliary processor 323 may process various processes for audio data using the above components. For example, the auxiliary processor 323 may mix at least one audio data transmitted through the audio input device 350 . The input port and the output port, for example, may be referred to as components that are operatively connected to the audio input device 350 and the audio output device 355 respectively to transmit and receive data (eg, audio data). The synthesizer may synthesize, for example, a plurality of input audio data into at least one audio data. The combining unit may include a format converting unit (eg, the format converting unit 651 of FIG. 6 ) and a channel combining unit (eg, the channel combining unit 652 of FIG. 6 ). The auxiliary processor 323 may convert the format of at least a portion of the received audio data by using the format converter included in the synthesizing unit. The auxiliary processor may synthesize a plurality of channel groups respectively corresponding to the plurality of audio input devices into one stream by using the channel combining unit included in the combining unit. The processing unit (eg, the processing unit 434 of FIG. 4 , the processing unit 534 of FIG. 5 , or the processing unit 734 of FIG. 7 ) may, for example, perform various processing functions for a plurality of audio data received through an input port. can be performed. The processing unit changes the sampling rate for a plurality of audio data transmitted from the input port, applies at least one filter, interpolation processing, amplification or attenuation of all or part of the frequency band, noise processing (eg, noise or echo attenuation) , changing channels (eg, switching between mono and stereo), extracting a specified signal, and/or setting a gain. For example, one or more functions of the processing unit may be implemented in the form of an equalizer. According to another embodiment, the processing unit (eg, the processing unit 434 of FIG. 4 , the processing unit 534 of FIG. 5 , or the processing unit 734 of FIG. 7 ) may include the synthesis unit (eg, the synthesis unit 550 of FIG. 5 ). It may be included in the combining unit 660 of 6, the combining unit 750 of Fig. 7) or the encoder/decoder 431. For example, the processing unit 434 may be configured to perform a plurality of audio data (eg: When synthesizing the first audio data and the second audio data), changing the sampling rate of the plurality of audio data transmitted from the input port 438 , applying at least one or more filters, interpolation processing, all or some frequencies It may also perform functions such as amplifying or attenuating bands, processing noise (eg, attenuating noise or echo), changing channels (eg, switching between mono and stereo), extracting a specified signal, and/or setting a gain.

The memory 330 may store one or more instructions that, when executed, cause the processor 320 to perform various operations of the electronic device 201 . According to an embodiment, the memory 330 may be operatively connected to the application processor 320 , and may transmit stored data to the application processor 320 or store data transmitted from the application processor 320 . For example, the memory 330 may store a parameter related to a data processing operation of the electronic device. According to an embodiment, the memory 330 may store various applications and/or application managers required for the electronic device to perform an audio data processing operation. For example, the memory 330 may store a recording application and/or a media application. The recording application may provide a function of recording audio data corresponding to a voice signal input to the electronic device through a plurality of audio input devices. The media application may provide a function of outputting audio data stored in the memory 330 to the outside.

According to an embodiment, the audio input device 350 may acquire audio data. For example, the application processor 320 may obtain audio data corresponding to a voice (eg, user's utterance) sensed from an external (eg, user) using the audio input device 350 . For example, the application processor 320 may control the audio input device 350 to convert the sensed voice using the analog-to-digital conversion circuit 351 and obtain the converted audio data. Audio data obtained by the audio input device 350 may be referred to as data obtained by converting a received voice into an electrical signal. The audio input device 350 may be configured to transmit the converted audio data to an input port included in the auxiliary processor 323 . For example, the audio input device 350 may include an audio or a device configured to receive an audio signal (eg, a microphone, a Bluetooth receiving circuit, or a USB circuit). Although the audio input device 350 is illustrated as one block in FIG. 3 , the electronic device may include a plurality of audio input devices. For example, the audio input device 350 includes a first input device (eg, the first input device 542-1 of FIG. 5 ) and a second input device (eg, the second input device 542-2 of FIG. 5 ). )) may be included. The electronic device may acquire various audio data using a plurality of audio input devices.

The audio output device 355 may output synthesized data, according to an embodiment. For example, the application processor 320 may be configured to receive the synthesized data generated by the auxiliary processor 323 and output the synthesized data using the audio output device 355 . For example, the application processor 320 may control the audio output device 355 to convert the synthesized data using the digital-to-analog conversion circuit 352 , and to obtain and output the converted voice. For example, the audio output device 355 may include a circuit (eg, a speaker, a Bluetooth transmission circuit, and/or a USB circuit) configured to output an electrical signal as an audio or audio signal.

According to an embodiment, the audio input device 350 and the audio output device 355 may include an audio amplification circuit (eg, a speaker amplification circuit). The audio amplification circuit may amplify a voice received from the audio input device 350 or a voice output from the audio output device 355 . For example, the audio amplifier may be configured as a module separate from the audio input device 350 and the audio output device 355 . According to another embodiment, an audio amplification circuit (eg, a speaker amplification circuit) may be included in the auxiliary processor 323 .

In FIG. 3 , the description of internal components of the coprocessor 323 (eg, an input port, an output port, an encoder/decoder, a processing unit, and/or a synthesis unit) is illustrative and not limited thereto. For example, although the synthesis unit is described as a hardware device included in the auxiliary processor 323, it may also be referred to as a software component that generates synthesized data.

4 is a diagram illustrating a software layer 400 of an electronic device according to an embodiment.

Referring to FIG. 4 , according to an embodiment, the application processor (eg, the application processor 320 of FIG. 3 ) includes an application layer 405 , a platform layer 410 , and a kernel layer 420 . , and/or a program (eg, the program 140 of FIG. 1 ) including the audio layer 430 may be loaded into a memory (eg, the memory 130 of FIG. 1 ) and executed. The application layer 405 , the platform layer 410 , and the kernel layer 420 may be executed and/or implemented in a main processor (eg, the main processor 321 of FIG. 3 ), and the audio layer 430 may be a secondary It may be executed and/or implemented in a processor (eg, the coprocessor 323 of FIG. 3 ).

The layer division according to the description of FIG. 4 may refer to a software layer in which at least a part of a program loaded into a memory is functionally or logically divided.

According to an embodiment, the application layer 405 , the platform layer 410 , the kernel layer 420 , and/or the audio layer 430 may be loaded into a memory address space designated in the memory, respectively. have. According to an embodiment, the audio stream data generated (or loaded) in the memory space of the application layer 405 , the platform layer 410 , and the kernel layer 420 by the main processor is a direct According to a memory access) method (eg, according to the control of a DMA controller included in the application processor), it may be moved (eg, copied) to a memory spece of the audio layer 430 . According to another embodiment, the layer division shown in FIG. 4 may be a layer division determined by a logical memory address on a memory controlled and/or managed by a main processor or an auxiliary processor.

According to an embodiment, audio stream data generated (or loaded) by the main processor is transmitted to the audio layer 430 according to various communication methods (eg, shared memory IPC communication method) through a shared memory allocated to the memory. ) can be moved (eg, copied) to the memory area.

According to an embodiment, the main processor or application layer 405 may include an application 407 . For example, the main processor or application 407 may have a function associated with the processing of audio data (eg, an audio reproduction activation function, an audio reproduction deactivation function, an audio equalizer function, an audio volume control function, an audio reproduction control function, and/or an audio It may mean an application (eg, a recording application or a media application) for controlling a data recording function). The application 407 may provide a user interface that allows a user to control a function related to audio data processing. For example, the application 407 is a recording application that acquires a voice signal from the outside through at least one input device (eg, a microphone, a Bluetooth device, and/or USB) and/or through at least one output device. It may include a media application that outputs a voice signal corresponding to the specified audio data to the outside.

According to an embodiment, the main processor or platform layer 410 may include a multimedia framework 413 , an audio framework 415 , and an audio hardware abstract layer 417 . For example, the multimedia framework 413 may transmit information about audio data to the audio framework 415 . As an example, the multimedia framework 413 selects a stream type of audio data or a type of an audio module (eg, the audio module 170 of FIG. 1 ) (eg, a speaker, a headset, and/or a microphone)). may be transmitted to the audio framework 415 .

According to one embodiment, the main processor or audio hardware abstraction layer 417 includes hardware (eg, the audio input device 350 and/or the audio output device 355 of FIG. 3 ), the application 407 , the multimedia framework ( 413 ), and/or an abstraction layer between the audio framework 415 . The main processor or audio hardware abstraction layer 417 receives the information transmitted by the audio framework 415 , generates a control signal based on the information, and sends the control signal to the interface 421 and the audio driver 423 . can be transmitted For example, the main processor or audio hardware abstraction layer 417 identifies audio data determined to be output from the application 407 to the outside, and includes information related to the audio data (eg, audio data type, audio data processing path, and/or audio data reproduction volume level) may be transferred to the kernel layer 420 .

According to an embodiment, the main processor or interface 421 may transmit a control signal transmitted from the platform layer 410 to the kernel layer 420 . For example, the interface 421 may be a component referred to as an advanced linux sound architecture (ALSA).

According to an embodiment, the main processor or audio driver 423 may control an audio input device or an audio output device. For example, the audio driver 423 may control hardware that acquires audio data from the outside (eg, the audio input device 350 of FIG. 3 ). As another example, the audio driver 423 receives a control signal transmitted by the audio hardware abstraction layer 417 and outputs audio based on the control signal (eg, the audio output device 355 of FIG. 3 ). can control For another example, the audio driver 423 controls hardware (eg, the encoder/decoder 431 , the DSP processing unit 434 , and/or the input/output port module 437 ) driven in the audio layer 430 stage. can do.

According to an embodiment, the audio layer 630 may be referred to as a software layer implemented in a coprocessor (eg, coprocessor 323 of FIG. 3 ). For example, the audio layer 630 processes audio data obtained using the audio input device 442 (eg, the audio input device 350 of FIG. 3 ) included in the input/output device 440 , and processes the processed audio data. Various operations for transmitting audio data to the application 407 may be performed. As another example, the audio layer 630 may process an audio stream transmitted from the platform layer 410 and perform various operations for outputting the audio stream to the audio output device 444 . For example, the audio layer 630 may include an encoder/decoder 431 , a processing unit 434 , and/or an input/output port module 437 .

According to an embodiment, the encoder/decoder 431 may include an encoder 432 and a decoder 433 . For example, the encoder 432 may encode and process audio data obtained by using the audio input device 442 and transmitted via the input port 438 and the processing path 435 . The coprocessor may transmit audio data encoded by the encoder 432 to the kernel layer 420 . As another example, the decoder 433 may decode audio data transmitted from the application 407 through the platform layer 410 and the kernel layer 420 . The auxiliary processor may process the audio data decoded by the decoder 433 using the processing unit 434 and transmit it to the audio output device 444 through the output port 439 .

According to an embodiment, the processing unit 434 may include an input data processing path 435 and an output data processing path 436 . For example, the input data processing path 435 may be referred to as a data processing path in which audio data obtained by using the audio input device 442 and received through the input port 438 is processed by the coprocessor. The coprocessor may transmit at least a portion of the processed audio data to the encoder 432 based on the input data processing path 435 . For another example, the output data processing path 436 may be referred to as a processing path through which decoded audio data transmitted from the decoder 433 is processed. The coprocessor may transmit at least a portion of the processed audio data to the output port 439 based on the output data processing path 436 .

According to an embodiment, the input/output port module 437 may include an input port 438 and an output port 439 . For example, the input port 438 is a physical terminal for receiving data acquired and transmitted from the audio input device 442 or a memory in which data transmitted from the audio input device 442 is recorded (eg, the memory ( 130)))). For example, the input port 438 may include a physical terminal connected to a space in a memory whose value is changed in association with data transmitted from the audio input device 442 . For another example, the output port 439 may include a physical terminal for outputting audio data to the audio output device 444 or a space in a memory in which data transmitted from a coprocessor is recorded. As an example, the output port 439 may include a physical terminal whose current and/or voltage value is changed in association with a value in a space in the memory. In FIG. 4 , the input/output port module 437 is illustrated as including only one input port 438 , but embodiments of the present document are not limited thereto. For example, the electronic device may include a plurality of audio input devices 442 , and may further include a plurality of input ports 438 corresponding to the number of the audio input devices 442 . Specific details of the plurality of audio input devices 442 and the plurality of input ports 438 may be referred to in more detail in the description of FIGS. 5 to 7 to be described later.

According to an embodiment, the electronic device (eg, the electronic device 101 of FIG. 1 ) uses the audio input device 442 (eg, the audio input device 350 of FIG. 3 ) included in the input/output device 440 . to obtain audio data. The audio input device 442 may be referred to as a component constituting an audio module (eg, the audio module 170 of FIG. 1 or FIG. 2 ) included in the electronic device. Although only one audio input device 442 is illustrated in FIG. 4 , embodiments of the present document are not limited thereto, and audio data may be acquired from a plurality of audio input devices. For example, the electronic device may acquire various audio data from the outside by using the plurality of audio input devices 442 . The audio input device 442 may convert the acquired voice into audio data using the ADC 351 . The converted audio data may be transmitted to the input port 438 included in the audio layer 430 .

According to an embodiment, the electronic device may output audio data using the audio output device 444 (eg, the audio output device 355 of FIG. 3 ) included in the input/output device 440 . The audio output device 444 may be referred to as a component of an audio module (eg, the audio module 170 of FIG. 1 or FIG. 2 ) included in the electronic device. The division of layers and the inclusion relationship of components shown in FIG. 4 are exemplary, and embodiments of the present document are not limited thereto. For example, although only one audio output device 444 is illustrated in FIG. 4 , the electronic device may output audio data through a plurality of audio output devices. For another example, in FIG. 4 , the encoder/decoder 431 is shown included in the audio layer 430 , but the encoder/decoder 431 is the kernel layer 420 , the platform layer 410 , and/or It may be additionally or alternatively included in the application layer 405 .

According to an embodiment, the electronic device may include various audio data processing paths. For example, a path corresponding to reference number 480 may be referred to as a processing path of audio data obtained using the audio input device 442 . As another example, a path corresponding to reference number 490 may be referred to as a processing path of audio data transmitted from the application 407 . The electronic device receives an external input (eg, a user input) for performing an audio data processing operation through the input/output device 440 , and generates various audio data processing paths 480 and/or 490 in response to the external input. can do.

5 is a block diagram 500 illustrating an audio data processing process of an electronic device according to an exemplary embodiment.

According to an embodiment, the electronic device (eg, the electronic device 101 of FIG. 1 ) uses a plurality of input devices 542-1 and 542-2 (eg, the audio input device 350 of FIG. 3 ). to obtain audio data. For example, the electronic device may acquire first audio data using the first input device 542-1 and may acquire second audio data using the second input device 542-2. As an example, the first audio data may be transmitted to the first input port 538 - 1 included in the audio layer 530 (eg, the audio layer 430 of FIG. 4 ) through the first processing path 580a. have. As another example, the second audio data may be transmitted to the second input port 538 - 2 included in the audio layer 530 through the second processing path 580b. The main processor included in the electronic device (eg, the main processor 321 of FIG. 3 ) transmits the acquired audio data to the input port using the plurality of input devices 542-1 and 542-2. can do.

According to an embodiment, the electronic device may process the plurality of audio data received by the plurality of input ports 538 - 1 and 538 - 2 included in the audio layer 530 based on a specified processing path. For example, the electronic device may transmit the first audio data transmitted to the first input port 538 - 1 to the synthesizer 550 through the first processing path 580a. As another example, the electronic device may transmit the second audio data transmitted to the second input port 538 - 2 to the combining unit 550 through the second processing path 580b. For example, in the second input port 538 - 2 terminal, the electronic device may capture and/or duplicate the second audio data. The electronic device may transmit the second audio data captured and/or copied from the second input port 538 - 2 to the synthesis unit 550 through the second processing path 580b.

According to an embodiment, the electronic device may mix various audio data using the synthesizer 550 . For example, the electronic device may generate synthesized data obtained by synthesizing audio data output from the first input port 538 - 1 and the second input port 538 - 2 using the synthesizing unit 550 . The electronic device processes the synthesized data output from the combining unit 550 through the third processing path 580c (eg, the input data processing path 435 of FIG. 4 ) through the processing unit 534 (eg, the processing unit 434 of FIG. 4 ). )) can be transmitted.

According to an embodiment, the electronic device may perform various processing functions on audio data using the processing unit 534 . For example, the electronic device may change a sampling rate of audio data transmitted to the processing unit 534 (eg, synthesized data transmitted from the synthesis unit 550 ), apply at least one or more filters, perform interpolation processing, Alternatively, you can amplify or attenuate some frequency bands, process noise (e.g. noise or echo attenuation), change channels (e.g. switch between mono and stereo), extract a specified signal, and/or set a gain value. have. For example, one or more functions of the processing unit 534 may be implemented in the form of an equalizer. The electronic device may transmit the synthesized data output from the processing unit 534 to the encoder 532 (eg, the encoder 432 of FIG. 4 ) through the third processing path 580c.

According to an embodiment, the electronic device may encode audio data using the encoder 532 . For example, the electronic device may encode synthesized data processed and output by the processor 534 using the encoder 532 . The electronic device may transmit the encoded audio data to the application 507 (eg, the application 407 of FIG. 4 ) included in the application layer 505 (eg, the application layer 405 of FIG. 4 ). For example, the electronic device may transmit the encoded audio data to a first application (eg, a recording application) included in the application 507 through the third processing path 580c.

According to an embodiment, the above-described operation of the electronic device in the audio layer 530 may be an operation performed under the control of an auxiliary processor (eg, the auxiliary processor 323 of FIG. 3 ) included in the electronic device.

According to an embodiment, the electronic device may record at least a part of the audio data encoded by the encoder 532 by using the application 507 . For example, the electronic device stores at least a portion of the encoded audio data in a first application and/or memory (eg, the memory 130 of FIG. 1 ), and other applications (eg, media application) other than the first application It can be loaded when driving.

According to an embodiment, the above-described operation of the electronic device in the application layer 505 may be an operation performed under the control of a main processor included in the electronic device (eg, the main processor 321 of FIG. 3 ).

According to an embodiment, the electronic device receives an external input (eg, a user input) for performing an audio data processing operation through an input/output device (eg, the input/output device 440 of FIG. 4 ), and responds to the external input Thus, various audio data processing paths (eg, the first processing path 580a, the second processing path 580b, and/or the third processing path 580c) may be generated.

Hereinafter, in the description of FIG. 6 , the data processing process performed by the first input port 538 - 1 , the second input port 538 - 2 , and the synthesizer 550 included in the audio layer 530 will be described in more detail later. can do.

6 is a block diagram 600 illustrating an audio data processing process of an electronic device according to an exemplary embodiment.

The block diagram 600 shown in FIG. 6 shows some of the components included in the audio layer 530 shown in FIG. 5 (a first input port 538-1, a second input port 538-2); and the synthesizing unit 550) is an enlarged block diagram 600. According to an embodiment, the components shown in FIG. 6 will be described later under the control of an auxiliary processor (eg, the auxiliary processor 323 of FIG. 3 ) included in the electronic device (eg, the electronic device 101 of FIG. 1 ). actions can be performed.

According to one embodiment, the first input port 638-1 (eg, the first input port 538-1 of FIG. 5) and the second input port 638-2 (eg, the second input of FIG. 5) Port 538-2) is a first input device (eg, first input device 542-1 in FIG. 5) and a second input device (eg, second input device 542-2 in FIG. 5), respectively. It is possible to receive the first audio data and the second audio data transmitted from the . For example, the first input port 638 - 1 may receive the first audio data through the first processing path 680a (eg, the first processing path 580a of FIG. 5 ). As another example, the second input port 638 - 2 may receive the second audio data through the second processing path 680b (eg, the second processing path 580b of FIG. 5 ).

According to an embodiment, the first input port 638 - 1 may transmit the first audio data to the combining unit 650 (eg, the combining unit 550 of FIG. 5 ) through the first processing path 680a. have.

According to an embodiment, the second input port 638 - 2 may include a data capture unit 631 and a data duplicator 632 . For example, the data capture unit 631 may capture at least a portion of audio data received by the second input port 638 - 2 . For example, the data capture unit 631 may capture at least a portion of the second audio data received from the second input device in a designated time unit (eg, 1 ms unit). For example, the data duplicator 632 may duplicate at least a portion of the audio data. For example, the data duplicating unit 632 may duplicate at least a portion of the second audio data captured by the data capturing unit 631 after being received from the second input device. The second input port 638 - 2 may transmit the second audio data processed by the data capture unit 631 and the data duplicator 632 to the synthesis unit 650 through the second processing path 680b. . According to another embodiment, the data capture unit 631 and/or the data duplicator 632 are not included in the second input port 638-2, but may be configured separately. For example, the data capture unit 631 may be configured to detect the second input port 638 - 2 and may capture at least a portion of audio data. For example, the data duplicating unit 632 may not be included in the second input port 638 - 2 and may duplicate at least a portion of the second audio data captured by the data capturing unit 631 .

According to an embodiment, the data duplicating unit 632 may be omitted. For example, the second input port 638 - 2 may transmit the second audio data processed by the data capture unit 631 to the synthesis unit 650 through the second processing path 680b. As another example, the second audio data captured by the data capture unit 631 configured to detect the second input port 638 - 2 may be transmitted to the synthesis unit 650 through the second processing path 680b. have.

According to an embodiment, the combining unit 650 may include a format converting unit 651 and a channel combining unit 652 . For example, the format converter 651 may perform an operation of converting the format of at least some data among audio data received from different audio input devices. For example, the format converter 651 may set the format of the second audio data transmitted from the second input port 638-2 to be the same as the format of the first audio data transmitted from the first input port 638-1. can be converted For example, the channel combining unit 652 may mix a plurality of channels to be included in one stream. For example, the channel combining unit 652 may combine the first channel group corresponding to the first audio input device and the second channel group corresponding to the second audio input device into one stream. The first channel group includes at least one channel through which audio data received through the first input device are processed through the first input port 638 - 1 and the synthesizing unit 650 , and the second channel group includes the second channel group The audio data received from the second input device 638 - 2 may include at least one channel through which the second input port 638 - 2 and the synthesizer 650 are processed. The auxiliary processor (eg, the auxiliary processor 323 of FIG. 3 ) includes a format conversion unit 651 of the synthesizing unit 650 and a control signal received from the main processor (eg, the main processor 321 of FIG. 3 ). The channel combining unit 652 may be controlled.

7 is a block diagram 700 illustrating an audio data processing process of an electronic device according to an exemplary embodiment.

According to an embodiment, the electronic device (eg, the electronic device 101 of FIG. 1 ) uses a plurality of input devices 742-1 and 742-2 (eg, the audio input device 350 of FIG. 3 ). to obtain audio data. For example, the electronic device obtains first audio data using the first input device 742-1 (eg, the first input device 542-1 of FIG. 5 ), and the second input device 742 - 2) (eg, the second input device 542 - 2 of FIG. 5 ) may be used to acquire second audio data. For example, the electronic device may acquire first audio data through CH 1, CH 2, and/or CH 3 of the first channel group 745-1 corresponding to the first input device 742-1. have. As another example, the electronic device may acquire the second audio data through CH 4 of the second channel group 745 - 2 corresponding to the second input device 742 - 2 . Since the first input device 742-1 and the second input device 742-2 may have different parameter values (eg, a sample rate and/or a bit rate), the first The audio data may be referred to as audio data obtained in a format different from the second audio data.

According to an embodiment, the first audio data obtained by using the first input device 742-1 is the first input port 738-1 (eg, the first input port 538-1 of FIG. 5). can be transmitted to For example, the main processor (eg, the main processor 321 of FIG. 3 ) may first input the first audio data acquired using the first input device 542-1 through the first processing path 780a. port 738-1.

According to an embodiment, the second audio data obtained by using the second input device 742 - 2 is the second input port 738 - 2 (eg, the second input port 538 - 2 of FIG. 5 ). can be transmitted to For example, the main processor may transmit the second audio data obtained using the second input device 542 - 2 to the second input port 738 - 2 through the second processing path 780b.

According to an embodiment, the second input port 738-2 includes a data capture unit 731 (eg, the data capture unit 631 of FIG. 6 ) and a data replication unit 733 (eg, the data replication of FIG. 6 ). portion 632). For example, the data capture unit 731 may capture at least a portion of audio data received by the second input port 738 - 2 . For example, the data capture unit 731 may capture at least a portion of the second audio data received from the second input device 742 - 2 in a specified time unit (eg, 1 ms unit). For example, the data duplicator 632 may duplicate at least a portion of the audio data received by the second input port 738 - 2 . For example, the data duplicating unit 733 may duplicate at least a portion of the second audio data captured by the data capturing unit 731 after being received from the second input device 742 - 2 . The second input port 738 - 2 outputs the second audio data processed by the data capture unit 731 and the data duplicator 733 to the synthesis unit 750 (eg, the synthesis unit 550 in FIG. 5 ). can be transmitted

According to an embodiment, the synthesizer 750 may receive the first audio data and the second audio data from the first input port 738 - 1 and the second input port 738 - 2 , respectively. For example, the first audio data may be referred to as audio data acquired using the first input device 742-1 through the first channel group 745-1. As another example, the second audio data may be referred to as audio data acquired using the second input device 742 - 2 through the second channel group 745 - 2 . The first audio data may be audio data transmitted to the synthesizer 750 through the first processing path 780a and the second audio data may be transmitted through the second processing path 780b.

According to an embodiment, the combining unit 750 may include a format converting unit 751 and a channel combining unit 752 . For example, the format converter 751 may perform an operation of converting the format of at least some data among audio data received from different audio input devices. For example, the format converter 751 may set the format of the second audio data transmitted from the second input port 738-2 to be the same as the format of the first audio data transmitted from the first input port 738-1. can be converted For example, the channel combining unit 752 may mix a plurality of channels to be included in one stream. For example, the channel combining unit 752 may combine the first channel group 745-1 corresponding to the first audio input device and the second channel group 745-2 corresponding to the second audio input device into one stream ( 745-3) can be synthesized. The first channel group 745 - 1 includes at least one channel (CH 1 , CH) through which audio data received through the first input device are processed through the first input port 738 - 1 and the synthesis unit 750 . 2, and CH 3), and the second channel group 745-2 receives audio data received from the second input device 738-2 through the second input port 738-2 and the synthesizer 750. It may include at least one channel (CH 4 ) processed via . The synthesized data synthesized by the channel combining unit 752 of the combining unit 750 may include data of multiple channels included in one stream 745 - 3 . The auxiliary processor (eg, the auxiliary processor 323 of FIG. 3 ) is a synthesizer 750 based on the control signal received from the main processor (eg, the main processor 321 of FIG. 3 ) through the fourth path 770 . It can control the format conversion unit 751 and the channel synthesis unit 752 of the . The auxiliary processor may transmit the synthesized data synthesized by the synthesizer 750 to the processing unit 734 through a third path 780c (eg, the input data processing path 435 of FIG. 4 ).

According to an embodiment, the description of the processing unit 734 , the encoder 732 , and the application 707 will be replaced with the description of the processing unit 534 , the encoder 532 , and the application 507 of FIG. 5 . can For example, the processing unit 734 receives the synthesized data output from the synthesizer 750 through the third path 780c, performs a processing operation specified for the synthesized data, and transfers the processed synthesized data to the third path ( 7780c) to the encoder 732 .

8 is a flowchart of an audio data processing operation of an electronic device 800 according to an exemplary embodiment.

According to an embodiment, the electronic device (eg, the electronic device 101 of FIG. 1 ) may perform the operations illustrated in FIG. 8 . For example, the processor of the electronic device (eg, the processor 120 of FIG. 1 ) performs the operations of FIG. 8 when instructions stored in the memory (eg, the memory 130 of FIG. 1 ) are executed. can be set.

In operation 805, the electronic device (eg, the electronic device 101 of FIG. 1 ) may obtain audio data from a plurality of audio input devices. For example, the electronic device uses a first input device (eg, the first input device 542-1 of FIG. 5 ) and a second input device (eg, the second input device 542-2 of FIG. 5 ). Thus, the first audio data and the second audio data may be obtained, respectively. As another example, the electronic device may perform an operation in which the main processor (eg, the main processor 321 of FIG. 3 ) controls the first input device and the second input device to acquire the first audio data and the second audio data. can be done The main processor transfers the acquired first audio data and the second audio data to a first input port (eg, the first input port 538-1 of FIG. 5) included in the auxiliary processor (eg, the auxiliary processor 323 of FIG. 3). )) and the second input port (eg, the second input port 538-2 of FIG. 5), respectively. For example, the main processor transmits the acquired first audio data to a first input port (eg, the first input port 538 - 1 of FIG. 5 ) included in the auxiliary processor (eg, the auxiliary processor 323 of FIG. 3 ). ), and transmit the second audio data to the second input port (eg, the second input port 538-2 of FIG. 5) included in the coprocessor (eg, the coprocessor 323 of FIG. 3). have.

In operation 810 , the electronic device may synthesize a plurality of audio data using a synthesizer (eg, the synthesizer 550 of FIG. 5 ). According to an embodiment, the electronic device may mix the first audio data and the second audio data transmitted from the first input port and the second input port to the synthesizer using the synthesizer. The electronic device may perform an operation in which the auxiliary processor controls the synthesizer to synthesize the first audio data and the second audio data. For example, the synthesizer may receive the captured first audio data in a specified time unit (eg, 1 ms unit) from the first input port. For another example, the synthesizing unit includes a data capture unit (eg, the data capturing unit 631 of FIG. 6 ) and the data replicating unit (eg, the data replicating unit 632 of FIG. 6 ) included in the second input port for a specified time. After being captured in units (eg, in units of 1 ms), the duplicated second audio data may be received. The synthesizer may synthesize the received first audio data and the second audio data. For example, the combining unit may include a format converting unit (eg, the format converting unit 651 of FIG. 6 ) and the channel combining unit 652 . The synthesizer may convert the format of the second audio data into the same format as that of the first audio data by using the format converter. The synthesizing unit uses the channel synthesizing unit to include a first channel group corresponding to the first audio input device (eg, the first channel group 745-1 of FIG. 7 ) and a second audio input device corresponding to the second audio input device. A two-channel group (eg, the second channel group 745-2 of FIG. 7 ) may be synthesized into one stream. For example, the first channel group includes at least one channel (eg, CH 1 in FIG. 7 ) for allowing audio data (eg, first audio data) received from the first input device to pass through the first input port and the synthesizer. , CH 2 , and/or CH 3). As another example, the second channel group includes at least one channel (eg, CH 4 in FIG. 7 ) for allowing audio data (eg, second audio data) received from the second input device to pass through the second input port and the synthesizer. ) may be included.

In operation 815 , the electronic device may transmit the synthesized data generated by the synthesizer to an input data processing path (eg, the input data processing path 435 of FIG. 4 ). For example, the electronic device may transmit the synthesized data through an input data processing path included in the processing unit (eg, the processing unit 734 of FIG. 7 ). The input data processing path may be referred to as an audio data processing path generated in response to driving of a plurality of input devices. For example, the electronic device may perform an operation in which the auxiliary processor processes (eg, post-processing) the synthesized data generated by the synthesizer through an input data processing path.

In operation 820, the electronic device may transmit the processed composite data to the first application. For example, the electronic device may transmit and encode synthesized data processed through the input data processing path to an encoder (eg, the encoder 732 of FIG. 7 ). The electronic device may transmit the encoded composite data to a first application (eg, a recording application) among a plurality of applications (eg, the application 707 of FIG. 7 ). For example, the electronic device transmits synthesized data encoded by the coprocessor using the encoder via a kernel layer (eg, the kernel layer 420 of FIG. 4 ) and a platform layer (eg, the platform layer 410 of FIG. 4 ). Thus, an operation of controlling transmission to the first application among the applications (eg, the application 407 of FIG. 4 ) included in the application layer (eg, the application layer 405 of FIG. 4 ) may be performed.

According to an embodiment, the electronic device (eg, the electronic device 101 of FIG. 1 ) may perform the operations illustrated in FIG. 9 . For example, the processor of the electronic device (eg, the processor 120 of FIG. 1 ) performs the operations of FIG. 9 when instructions stored in the memory (eg, the memory 130 of FIG. 1 ) are executed. can be set.

In operation 910 , the electronic device may determine whether an input data processing path (eg, the input data processing path 435 of FIG. 4 ) exists. For example, the electronic device has an input data processing path for processing first audio data received from a first input device among a plurality of audio input devices (eg, the first input device 542-1 of FIG. 5 ). can determine whether Additionally or alternatively, the electronic device may identify the number of audio input devices that perform an operation of acquiring audio data among a plurality of audio input devices. The electronic device may determine whether to generate an input data processing path only when the number of audio input devices performing an operation of acquiring audio data exceeds a specified number (eg, two).

In operation 910, if it is determined that the first input data processing path exists (eg, operation 910 - Yes), the electronic device may perform operation 913 .

In operation 910, if it is determined that the first input data processing path does not exist (eg, operations 910 - No), the electronic device may perform operation 920 .

In operation 913, the electronic device may identify audio input devices that are being operated. For example, the electronic device may identify that the first input device is performing an operation of acquiring audio data. As another example, the electronic device may identify that the first input device and the second input device are performing an operation of acquiring audio data.

In operation 915 , the electronic device may acquire second audio data through a second input device (eg, the second input device 542 - 2 of FIG. 5 ). For example, the electronic device transmits the second audio data obtained using the second input device to the audio layer 530 through a second input port (eg, the second input port 538-2 of FIG. 5). can be transmitted

In operation 917 , the electronic device may transmit the second audio data to a synthesizer (eg, the synthesizer 550 of FIG. 5 ). For example, the electronic device may transmit the second audio data acquired using the second input device to the synthesizer via the second input port. For example, the second input port and the synthesizer may be referred to as hardware or software components included in an audio layer (eg, the audio layer 530 of FIG. 5 ) among software layers included in the electronic device.

In operation 920, the electronic device may generate an input data processing path. For example, the electronic device may generate an input data processing path (eg, the third processing path 580c of FIG. 3 ) for processing synthesized data of the first audio data and the second audio data. The generated input data processing path processes at least one data output from the synthesizer (eg, the processing unit 534 of FIG. 5 ), an encoder (eg, the encoder 532 of FIG. 5 ), and an application (eg, FIG. 5 ). may be referred to as a data processing path via the application 507 of

In operation 930, the electronic device may synthesize a plurality of audio data and transmit it to the input data processing path. For example, the electronic device may synthesize the first audio data and the second audio data using the synthesizer. The combining unit may include a format converting unit (eg, the format converting unit 651 of FIG. 6 ) and a channel combining unit (eg, the channel combining unit 652 of FIG. 6 ). The electronic device converts the second audio data into the same format as the first audio data using the format converter, and synthesizes the first channel group and the second channel group into one stream using the channel combiner. can do. For example, the electronic device uses the channel synthesizer to include first audio data included in a first channel group corresponding to the first audio input device and second channel group corresponding to the second audio input device. Composite data may be generated by synthesizing the second audio data. The electronic device may transmit the composite data to the input data processing path. For example, the electronic device encodes the synthesized data processed through the input data processing path using an encoder (eg, the encoder 732 of FIG. 7 ), and transmits the encoded synthesized data to the first application (eg: It can be transmitted to a recording application). The electronic device may store the recorded composite data in a memory (eg, the memory 130 of FIG. 1 ) using the first application. For example, the electronic device may identify output data determined to be output to the outside by a second application (eg, a media application) from among composite data recorded using the first application. As an example, in the electronic device, the main processor (eg, the main processor 321 of FIG. 3 ) corresponds to at least a part of the synthesized data, and outputs the output data determined to be externally output by the second application to the auxiliary processor (eg, the main processor 321 of FIG. 3 ). An operation for controlling transmission to the auxiliary processor 323 may be performed. The coprocessor decodes the output data using a decoder (eg, the decoder 433 of FIG. 4 ), and sends the decoded output data to a processing unit and an output port (eg, the output port 439 of FIG. 4 ). It may be transmitted to an audio output device (eg, the audio output device 444 of FIG. 4 ) via the . The processor may output the output data to the outside using an audio output device.

10 is a block diagram 1000 illustrating a program 140 according to various embodiments. According to an embodiment, the program 140 is an operating system 142 for controlling one or more resources of the electronic device 101 , middleware 144 , or an application 146 executable in the operating system 142 ( Example: application 407 of FIG. 4 ) may be included. Operating system 142 may include, for example, Android ^TM , iOS ^TM , Windows ^TM , Symbian ^TM , Tizen ^TM , or Bada ^TM . At least some of the programs 140 are, for example, preloaded into the electronic device 101 at the time of manufacture, or an external electronic device (eg, the electronic device 102 or 104 ), or a server (eg, the electronic device 102 or 104 ) when used by a user. 108))) or may be updated.

The operating system 142 may control management (eg, allocation or retrieval) of one or more system resources (eg, a process, memory, or power) of the electronic device 101 . The operating system 142 may additionally or alternatively include other hardware devices of the electronic device 101 , for example, the input module 150 , the sound output module 155 , the display module 160 , and the audio module 170 . , sensor module 176 , interface 177 , haptic module 179 , camera module 180 , power management module 188 , battery 189 , communication module 190 , subscriber identification module 196 , or It may include one or more driver programs for driving the antenna module 197 .

The middleware 144 may provide various functions to the application 146 so that functions or information provided from one or more resources of the electronic device 101 may be used by the application 146 . The middleware 144 includes, for example, an application manager 1001 , a window manager 1003 , a multimedia manager 1005 , a resource manager 1007 , a power manager 1009 , a database manager 1011 , and a package manager 1013 . ), a connectivity manager 1015 , a notification manager 1017 , a location manager 1019 , a graphics manager 1021 , a security manager 1023 , a call manager 1025 , or a voice recognition manager 1027 . can

The application manager 1001 may manage the life cycle of the application 146 , for example. The window manager 1003 may manage one or more GUI resources used in a screen, for example. The multimedia manager 1005, for example, identifies one or more formats required for playback of media files, and encodes or decodes a corresponding media file among the media files using a codec suitable for the selected format. can be done The resource manager 1007 may, for example, manage the space of the source code of the application 146 or the memory of the memory 130 . The power manager 1009 may, for example, manage the capacity, temperature, or power of the battery 189 , and use the corresponding information to determine or provide related information required for the operation of the electronic device 101 . . According to an embodiment, the power manager 1009 may interwork with a basic input/output system (BIOS) (not shown) of the electronic device 101 .

The database manager 1011 may create, retrieve, or modify a database to be used by the application 146 , for example. The package manager 1013 may manage installation or update of an application distributed in the form of a package file, for example. The connectivity manager 1015 may manage, for example, a wireless connection or a direct connection between the electronic device 101 and an external electronic device. The notification manager 1017 may provide, for example, a function for notifying the user of the occurrence of a specified event (eg, an incoming call, a message, or an alarm). The location manager 1019 may manage location information of the electronic device 101 , for example. The graphic manager 1021 may manage, for example, one or more graphic effects to be provided to a user or a user interface related thereto.

The security manager 1023 may provide, for example, system security or user authentication. The telephony manager 1025 may manage, for example, a voice call function or a video call function provided by the electronic device 101 . The voice recognition manager 1027, for example, transmits the user's voice data to the server 108, and based at least in part on the voice data, a command corresponding to a function to be performed in the electronic device 101; Alternatively, the converted text data may be received from the server 108 based at least in part on the voice data. According to an embodiment, the middleware 1044 may dynamically delete some existing components or add new components. According to an embodiment, at least a portion of the middleware 144 may be included as a part of the operating system 142 or implemented as software separate from the operating system 142 .

The application 146 includes, for example, home 1051 , dialer 1053 , SMS/MMS 1055 , instant message (IM) 1057 , browser 1059 , camera 1061 , alarm 1063 . , Contact 1065, Voice Recognition 1067, Email 1069, Calendar 1071, Media Player 1073, Album 1075, Watch 1077, Health 1079 (such as exercise or blood sugar) measuring biometric information), or environmental information 1081 (eg, measuring atmospheric pressure, humidity, or temperature information). According to an embodiment, the application 146 may further include an information exchange application (not shown) capable of supporting information exchange between the electronic device 101 and an external electronic device. The information exchange application may include, for example, a notification relay application configured to transmit specified information (eg, call, message, or alarm) to an external electronic device, or a device management application configured to manage the external electronic device. have. The notification relay application, for example, transmits notification information corresponding to a specified event (eg, mail reception) generated in another application (eg, the email application 1069) of the electronic device 101 to the external electronic device. can Additionally or alternatively, the notification relay application may receive notification information from the external electronic device and provide it to the user of the electronic device 101 .

The device management application is, for example, a power source (eg, turn-on or turn-off) of an external electronic device that communicates with the electronic device 101 or some components thereof (eg, a display module or a camera module of the external electronic device). ) or a function (eg brightness, resolution, or focus). The device management application may additionally or alternatively support installation, deletion, or update of an application operating in an external electronic device.

An electronic device according to an embodiment disclosed in this document includes a plurality of audio input devices including a first input device and a second input device, an audio output device, a plurality of input ports, an output port, a synthesizer, an encoder, and It may include a coprocessor including a decoder, a main processor operatively coupled to the coprocessor, and a memory. The processor may be configured to receive first audio data acquired using the first input device and second audio data acquired using the second input device, a first input port and a second input device included in the plurality of input ports. It is configured to transmit a control signal to each port, and to transmit a control signal for the synthesizing unit to synthesize a plurality of audio data to the co-processor, wherein the co-processor captures the second audio data received through the second input port. (capture), the captured second audio data and the first audio data received through the first input port are mixed using the synthesizer to generate synthesized data, and the synthesized data is combined with the encoder may be set to be encoded and transmitted to the first application using .

According to an embodiment, the synthesis unit includes a format conversion unit and a channel synthesis unit, and the auxiliary processor converts the second audio data into the same format as the first audio data using the format conversion unit. and synthesizing a first channel group corresponding to the first input device and a second channel group corresponding to the second input device into one stream using the channel combining unit. can be

According to an embodiment, the first channel group includes at least one channel for allowing audio data received from the first input device to pass through the first input port and the synthesizing unit, and the second channel group includes: , at least one channel for allowing audio data received from the second input device to pass through the second input port and the synthesizing unit.

According to an embodiment, the second input port includes a data capture unit, and the auxiliary processor is configured to capture the second audio data received from the second input device in a specified time unit by using the data capture unit. More can be set.

According to an embodiment, the second input port further includes a data duplicating unit, and the auxiliary processor uses the data duplicating unit to duplicate the captured second audio data, and to reproduce the duplicated second audio data. It may be further configured to be transmitted to the synthesizing unit.

According to an embodiment of the present disclosure, when it is determined that at least two or more audio input devices among the plurality of audio input devices perform an operation of acquiring audio data, the processor is configured to include the first audio received from the first input device. and generate an input data processing path for processing data, and the coprocessor may be further configured to transmit the first audio data received through the first input port to the input data processing path.

According to an embodiment, the auxiliary processor may be further configured to transmit the second audio data received through the second input port to the input data processing path.

According to an embodiment, the processor may be further configured to record the composite data using the first application and output at least a portion of the recorded composite data to the outside using a second application. have.

According to an embodiment, the processor is further configured to transmit, to the coprocessor, output data corresponding to at least a portion of the synthesized data and determined to be externally output by the second application, and the coprocessor is configured to: further configured to decode data using the decoder, and transmit the decoded output data to the audio output device via an output data processing path and the output port, wherein the processor is configured to: It may be further set to output to the outside using an audio output device.

According to an embodiment, the first application may correspond to a recording application, and the second application may correspond to a media application.

According to an embodiment disclosed in this document, a method for providing a function for an electronic device to process audio data includes first audio data acquired using a first input device and first audio data acquired using a second input device transmitting the second audio data to the first input port and the second input port included in the plurality of input ports, respectively, and transmitting a control signal to the coprocessor for synthesizing the plurality of audio data by the synthesizing unit included in the coprocessor performing, capturing the second audio data received through the second input port, and synthesizing the captured second audio data and the first audio data received through the first input port It may include an operation of generating synthesized data by mixing using the unit, and an operation of encoding the synthesized data using the encoder and transmitting the synthesized data to a first application.

According to an embodiment, the synthesizing unit includes a format converting unit and a channel synthesizing unit, and mixing the captured second audio data and the first audio data received through the first input port using the synthesizing unit. ) to generate the synthesized data, converting the second audio data into the same format as that of the first audio data using the format converting unit and using the channel combining unit to convert the first input and synthesizing a first channel group corresponding to the device and a second channel group corresponding to the second input device into one stream.

According to an embodiment, the second input port includes a data capture unit, and the capturing of the second audio data received through the second input port may include using the data capture unit to capture the second audio data. 2 The method may include capturing the second audio data received from the input device in a specified time unit.

According to an embodiment, the second input port further includes a data duplicating unit, and the capturing of the second audio data received through the second input port includes using the data duplicating unit, The method may further include duplicating the captured second audio data and transmitting the duplicated second audio data to the synthesizer.

According to an embodiment, in a method for providing a function for an electronic device to process audio data, when it is determined that at least two audio input devices among the plurality of audio input devices perform an operation of acquiring audio data, generating an input data processing path for processing the first audio data received from the first input device and transmitting the first audio data received through the first input port to the input data processing path may include more.

According to an embodiment, the method for providing a function for an electronic device to process audio data may further include transmitting the second audio data received through the second input port to the input data processing path. can

According to an embodiment, in a method for providing a function for an electronic device to process audio data, the composite data is recorded using the first application, and at least a portion of the recorded composite data is recorded as a second application. An operation of outputting to the outside using an application may be further included.

According to an embodiment, in the method for providing a function for processing audio data by an electronic device, output data corresponding to at least a part of the synthesized data and determined to be externally output by the second application is transmitted to the coprocessor decoding the output data using the decoder, transmitting the decoded output data to the audio output device via an output data processing path and the output port, and transmitting the output data to the audio output device. The method may further include outputting to the outside using an audio output device.

Claims

In an electronic device,

a plurality of audio input devices including a first input device and a second input device;

audio output device;

a coprocessor comprising a plurality of input ports, output ports, a synthesizer, an encoder, and a decoder;

a main processor operatively coupled to the coprocessor; and

Memory; including,

The processor is:

Transmitting first audio data acquired using the first input device and second audio data acquired using the second input device to a first input port and a second input port included in the plurality of input ports, respectively do,

and the synthesizing unit is configured to transmit a control signal for synthesizing a plurality of audio data to the coprocessor,

The coprocessor is:

capturing the second audio data received through the second input port;

generating synthesized data by mixing the captured second audio data and the first audio data received through the first input port using the synthesizer;

The electronic device is configured to encode the synthesized data using the encoder and transmit it to a first application.
The method according to claim 1,

The synthesizing unit includes a format converting unit and a channel synthesizing unit,

The coprocessor is:

converting the second audio data into the same format as that of the first audio data using the format conversion unit;

The former is further configured to synthesize a first channel group corresponding to the first input device and a second channel group corresponding to the second input device into one stream by using the channel synthesizing unit; Device.
3. The method according to claim 2,

The first channel group includes at least one channel for allowing audio data received from the first input device to pass through the first input port and the synthesizing unit,

The second channel group includes at least one channel for allowing audio data received from the second input device to pass through the second input port and the synthesizing unit.
The method according to claim 1,

The second input port includes a data capture unit,

The coprocessor is:

The electronic device is further configured to capture the second audio data received from the second input device in a specified time unit by using the data capture unit.
5. The method according to claim 4,

The second input port further comprises a data replication unit,

The coprocessor is:

Duplicating the captured second audio data by using the data duplicating unit,

The electronic device is further configured to transmit the duplicated second audio data to the synthesizing unit.
The method according to claim 1,

The processor is:

When it is determined that at least two audio input devices among the plurality of audio input devices perform an operation of acquiring audio data, an input data processing path is generated for processing the first audio data received from the first input device is further set to

The coprocessor is:

The electronic device is further configured to transmit the first audio data received through the first input port to the input data processing path.
7. The method of claim 6,

The coprocessor is:

The electronic device is further configured to transmit the second audio data received through the second input port to the input data processing path.
The method according to claim 1,

The processor is:

The electronic device is further configured to record the composite data using the first application and output at least a portion of the recorded composite data to the outside using a second application.
9. The method of claim 8,

The processor is:

Further configured to transmit output data corresponding to at least a part of the composite data and determined to be output by the second application to the auxiliary processor,

The coprocessor is:

further configured to decode the output data using the decoder, and transmit the decoded output data to the audio output device via an output data processing path and the output port,

The processor is:

The electronic device is further configured to output the output data to the outside using the audio output device.
10. The method of claim 9,

The first application corresponds to a recording application,

The second application corresponds to a media application, the electronic device.
A method for providing a function for an electronic device to process audio data, the method comprising:

transmitting the first audio data acquired using the first input device and the second audio data acquired using the second input device to the first input port and the second input port included in the plurality of input ports, respectively;

transmitting, to the auxiliary processor, a control signal for allowing a synthesis unit included in the auxiliary processor to synthesize a plurality of audio data;

capturing the second audio data received through the second input port;

generating synthesized data by mixing the captured second audio data and the first audio data received through the first input port using the synthesizer; and

encoding the synthesized data using the encoder and transmitting the encoded data to a first application; A method comprising
12. The method of claim 11,

The synthesizing unit includes a format converting unit and a channel synthesizing unit,

generating synthesized data by mixing the captured second audio data and the first audio data received through the first input port using the synthesizer,

converting the second audio data into the same format as the first audio data using the format converter; and

synthesizing a first channel group corresponding to the first input device and a second channel group corresponding to the second input device into one stream using the channel combining unit; A method comprising
13. The method of claim 12,

The first channel group includes at least one channel for allowing audio data received from the first input device to pass through the first input port and the synthesizing unit;

The second channel group includes at least one channel for allowing audio data received from the second input device to pass through the second input port and the synthesizing unit.
12. The method of claim 11,

The second input port includes a data capture unit,

The operation of capturing the second audio data received through the second input port includes:

capturing the second audio data received from the second input device in a designated time unit by using the data capture unit; A method comprising
15. The method of claim 14,

The second input port further comprises a data replication unit,

The operation of capturing the second audio data received through the second input port includes:

duplicating the captured second audio data using the data duplicating unit; and

transmitting the duplicated second audio data to the synthesizer; A method further comprising: