CN112684693A - Wearable device and audio processing method thereof - Google Patents

Wearable device and audio processing method thereof Download PDF

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Publication number
CN112684693A
CN112684693A CN202011507423.4A CN202011507423A CN112684693A CN 112684693 A CN112684693 A CN 112684693A CN 202011507423 A CN202011507423 A CN 202011507423A CN 112684693 A CN112684693 A CN 112684693A
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Prior art keywords
audio processing
audio
wearable device
data
chip
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杨鹤
饶国明
肖正飞
张慧敏
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Spreadtrum Communications Shanghai Co Ltd
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Spreadtrum Communications Shanghai Co Ltd
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Priority to CN202011507423.4A priority Critical patent/CN112684693A/en
Publication of CN112684693A publication Critical patent/CN112684693A/en
Priority to PCT/CN2021/131292 priority patent/WO2022127498A1/en
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    • GPHYSICS
    • G04HOROLOGY
    • G04GELECTRONIC TIME-PIECES
    • G04G21/00Input or output devices integrated in time-pieces
    • G04G21/06Input or output devices integrated in time-pieces using voice
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/16Sound input; Sound output
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B5/00Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00Circuits for transducers, loudspeakers or microphones

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Acoustics & Sound (AREA)
  • Telephone Function (AREA)

Abstract

The invention discloses a wearable device and an audio processing method thereof, wherein the wearable device is provided with an audio processing chip; the audio processing method comprises the following steps: acquiring an audio file; and judging whether the acquired audio file is transmitted to an audio processing chip or not according to an audio processing path specified in a preset strategy, if so, calling the audio processing chip to perform audio processing on the audio file and output audio data after the audio processing. According to the invention, by introducing the special audio processing chip and providing a mode of selecting the audio processing path, the access of the master control chip to the LPDDR can be effectively saved, the optimization of the playing flow and the reduction of the front-end data reading frequency are effectively realized, so that the power consumption is effectively reduced on the premise of providing high performance, and the standby time of wearable equipment such as a smart watch is further prolonged.

Description

Wearable device and audio processing method thereof
Technical Field
The invention relates to the field of intelligent terminals, in particular to wearable equipment capable of achieving low power consumption and an audio processing method thereof.
Background
A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. Wearable equipment is not only a hardware equipment, realizes powerful function through software support and data interaction, high in the clouds interaction more, and wearable equipment will bring very big transition to our life, perception.
Wearable devices such as smart watches generally need to support audio use scenarios such as calls, local music played outside, and bluetooth headset music, and need to meet the requirement of smart watches for low power consumption. In order to realize the audio scheme of the low-power-consumption intelligent watch, the aim of saving power consumption is achieved by reducing the performance of the whole main control chip at the cost of sacrificing the performance. However, for users with high demand for function diversity, the problem of power consumption cannot be solved by reducing performance.
At present, based on the chip architecture of the existing wearable devices such as smart watches, the audio processing scheme is executed by the main control chip. However, the main control chip framework involves interaction of a plurality of modules based on LPDDR (LPDDR DRAM, low power consumption double rate dynamic random access memory), which results in that the system cannot sleep for a long time (the final form of saving power consumption), and further results in that the power consumption of a scene requiring performance is high, and the scene requiring low power consumption cannot provide high performance.
Disclosure of Invention
The invention provides wearable equipment and an audio processing method thereof, and aims to overcome the defect that an audio processing scheme of wearable equipment such as a smart watch cannot well meet the requirements of high performance and low power consumption in the prior art.
The invention solves the technical problems through the following technical scheme:
an audio processing method of wearable equipment is provided, wherein an audio processing chip is arranged on the wearable equipment;
the audio processing method comprises the following steps:
acquiring an audio file;
and judging whether the acquired audio file is transmitted to the audio processing chip or not according to an audio processing path specified in a preset strategy, if so, calling the audio processing chip to perform audio processing on the audio file and output audio data after the audio processing.
Optionally, the method further comprises:
and judging whether the acquired audio file is transmitted to the audio processing chip or not according to an audio processing path appointed in a preset strategy, if not, calling a main control chip of the wearable device to perform audio processing on the audio file and output audio data after the audio processing.
Optionally, the step of calling the audio processing chip to perform audio processing on the audio file and output audio-processed audio data includes:
calling an audio processing module of the audio processing chip to sequentially perform format analysis and decoding processing on the audio file so as to obtain decoded PCM (Pulse Code Modulation, which refers to a digital data mode of audio) data;
and performing Bluetooth coding on the decoded PCM data through the audio processing module and outputting the coded audio data to a Bluetooth control module (which may refer to a Bluetooth protocol processing module or a Bluetooth device) of the wearable device.
Optionally, in the step of calling the audio processing module, an IRAM (Internal Random Access Memory) of the audio processing chip is called to perform data interaction with the audio processing module.
Optionally, in the step of outputting the encoded audio data to the bluetooth control module, a Static Random Access Memory (SRAM) of the wearable device is called to perform data interaction between the audio processing module and the bluetooth control module.
Optionally, the method further comprises:
and outputting the decoded PCM data to a Codec (audio D (digital) A (analog) conversion module) terminal for digital-to-analog conversion and outputting analog audio data to a loudspeaker of the wearable device.
Optionally, the wearable device comprises a smart watch or a smart bracelet.
A wearable device comprises a control unit and an audio processing chip;
the control unit is configured to acquire an audio file;
the control unit is further configured to judge whether the acquired audio file is transmitted to the audio processing chip according to an audio processing path specified in a preset strategy, and if so, call the audio processing chip to perform audio processing on the audio file and output audio data after the audio processing.
Optionally, the control unit is further configured to determine whether to transmit the acquired audio file to the audio processing chip according to an audio processing path specified in a preset policy, and if not, invoke a main control chip of the wearable device to perform audio processing on the audio file and output audio data after the audio processing.
Optionally, when the audio processing chip is invoked, the control unit is configured to:
calling an audio processing module of the audio processing chip to sequentially perform format analysis and decoding processing on the audio file so as to obtain decoded PCM data;
and carrying out Bluetooth coding on the decoded PCM data through the audio processing module and outputting the coded audio data to a Bluetooth control module of the wearable device.
Optionally, when the audio processing module is invoked, the control unit is configured to invoke an IRAM of the audio processing chip to perform data interaction with the audio processing module.
Optionally, when outputting the encoded audio data to a bluetooth control module, the control unit is configured to invoke an inter-core shared SRAM of the wearable device to perform data interaction between the audio processing module and the bluetooth control module.
Optionally, the control unit is further configured to invoke the audio processing chip to output the decoded PCM data to a Codec terminal for digital-to-analog conversion and output analog audio data to a speaker of the wearable device.
Optionally, the wearable device comprises a smart watch or a smart bracelet.
An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the audio processing method of a wearable device as described above when executing the computer program.
A computer readable medium having stored thereon computer instructions which, when executed by a processor, implement the steps of the audio processing method of a wearable device as described above.
On the basis of the common knowledge in the field, the preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The positive progress effects of the invention are as follows:
according to the wearable device and the audio processing method thereof provided by the invention, by introducing the special audio processing chip and providing a mode of selecting the audio processing path, the access of the master control chip to the LPDDR can be effectively saved, the optimization of the playing flow and the reduction of the front-end data reading frequency are effectively realized, so that the power consumption is effectively reduced on the premise of providing high performance, and the standby time of the wearable devices such as the intelligent watch is further prolonged.
Drawings
The features and advantages of the present disclosure will be better understood upon reading the detailed description of embodiments of the disclosure in conjunction with the following drawings. In the drawings, components are not necessarily drawn to scale, and components having similar relative characteristics or features may have the same or similar reference numerals.
Fig. 1 is a flowchart illustrating an audio processing method of a wearable device according to an embodiment of the invention.
Fig. 2 is a schematic diagram of an audio processing related structure of a wearable device according to another embodiment of the invention.
Fig. 3 is a schematic structural diagram of an electronic device implementing an audio processing method of a wearable device according to another embodiment of the present invention.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
In order to overcome the above existing defects, the present embodiment provides an audio processing method for a wearable device, where the wearable device is provided with an audio processing chip; the audio processing method comprises the following steps: acquiring an audio file; and judging whether the acquired audio file is transmitted to an audio processing chip or not according to an audio processing path specified in a preset strategy, if so, calling the audio processing chip to perform audio processing on the audio file and output audio data after the audio processing.
In this embodiment, preferably, the wearable device is a smart watch or a smart bracelet, but the present embodiment does not specifically limit the type of the wearable device, and the wearable device may be selected accordingly according to actual needs.
In the present embodiment, audio processing can be performed by a dedicated audio processing chip, thereby effectively fulfilling the need to provide high performance and low power consumption.
Specifically, as an embodiment, as shown in fig. 1, the audio processing method of the wearable device provided by this embodiment mainly includes the following steps:
step 101, obtaining an audio file.
In this step, an audio file, such as an audio file in MP3 format, is obtained from the local storage unit of the wearable device or the mobile network.
Step 102, determining whether to transmit the audio file to the audio processing chip, if so, executing step 103, and if not, executing step 105.
In this step, whether to transmit the acquired audio file to the audio processing chip is determined according to an audio processing path specified in a preset policy, if so, step 103 is executed, and if not, step 105 is executed.
In this embodiment, the audio processing path may be specified according to a pre-customized manner, may also be selected according to a real-time selection instruction, and may also be selected according to a type of the obtained audio file.
And 103, calling an audio processing chip to perform audio processing on the audio file. After step 103 is performed, step 104 is performed.
In this step, in response to selecting the audio processing path based on the audio processing chip, the audio processing chip is invoked to perform audio processing on the audio file.
Specifically, the audio processing chip mainly includes an IRAM and an audio processing module (i.e., an audio DSP (Digital Signal processing)).
In this step, an audio processing module is called to perform file format parsing on the audio file to parse out a data structure for decoding, and further to decode to obtain decoded PCM data.
In this step, the self-contained IRAM is called in real time to perform data interaction with the audio processing module, so that the access of LPDDR can be saved, and simultaneously, large data blocks, such as 10s data, can be read at a time, so that the main control chip can keep a deep sleep within 10 s.
And step 104, outputting the audio data by the audio processing chip. After step 104 is executed, the flow ends.
In this step, the audio processing module performs bluetooth coding on the decoded PCM data and outputs the coded audio data to the bluetooth control module of the wearable device.
At this point, the inter-core shared SRAM of the wearable device is invoked to perform data interaction between the audio processing module and the bluetooth control module.
In this embodiment, the inter-core shared SRAM is used for data interaction between the audio processing module and the bluetooth control module, so that power consumption in a bluetooth scene is further saved.
In this step, the decoded PCM data is also output to the Codec terminal for digital-to-analog conversion and outputting analog audio data to a speaker of the wearable device.
And 105, calling the main control chip to perform audio processing on the audio file. After step 105 is performed, step 106 is performed.
In this step, in response to selecting the audio processing path based on the main control chip, the main control chip is invoked to perform audio processing on the audio file.
In this step, the main control chip is called to perform file format parsing on the audio file to parse out a data structure for decoding by the decoder, and the data is transmitted to the decoder to be further decoded to obtain decoded PCM data.
At this time, the LPDDR of the wearable device needs to be called in real time to perform data interaction with the main control chip.
And step 106, outputting the audio data by the main control chip. After step 106 is executed, the flow ends.
In this step, the decoded PCM data is output to the Codec terminal for digital-to-analog conversion, and the analog audio data is output to the speaker for playing.
In this step, the decoded PCM data may also be output to a bluetooth Host (BT Host) for encoding and issuing, and the received Host data may be sent to a bluetooth control module for playing.
According to the audio processing method of the wearable device provided by the embodiment, by introducing the special audio processing chip and providing a mode of selecting the audio processing path, the access of the master control chip to the LPDDR can be effectively saved, the optimization of the playing flow and the reduction of the front-end data reading frequency are effectively realized, so that the power consumption is effectively reduced on the premise of providing high performance, and the standby time of the wearable devices such as the smart watch is further prolonged.
The embodiment also provides a wearable device, and the wearable device utilizes the audio processing method of the wearable device.
In this embodiment, preferably, the wearable device is a smart watch or a smart bracelet, but the present embodiment does not specifically limit the type of the wearable device, and the wearable device may be selected accordingly according to actual needs.
Specifically, as another embodiment, as shown in fig. 2, the wearable device provided in this embodiment mainly includes a control unit (not shown in the figure), a storage unit 21, a main control chip 22, an LPDDR23, a Codec24, a bluetooth host 25, an audio processing chip 26, an SRAM27, a speaker 28, and a bluetooth control module 29, wherein the audio processing chip 26 includes an audio processing module 261 and an IRAM 262.
In this embodiment, the control unit may also be integrated into the main control chip 22 and the main control chip 22 executes corresponding functions, or other processing chips may also execute corresponding functions, and corresponding selection may be performed according to actual requirements.
The control unit is configured to retrieve the audio file from the local storage unit 21 or the mobile network.
The control unit is further configured to determine whether to transmit the acquired audio file to the audio processing chip 26 according to an audio processing path specified in the preset policy, if so, invoke the audio processing chip 26 to perform audio processing on the audio file and output audio data after the audio processing, and if not, invoke the main control chip 22 to perform audio processing on the audio file and output the audio data after the audio processing.
In this embodiment, the audio processing path may be specified according to a pre-customized manner, may also be selected according to a real-time selection instruction, and may also be selected according to a type of the obtained audio file.
Specifically, in response to selecting the audio processing path based on the audio processing chip 26, the control unit is further configured to invoke the audio processing module 261 to perform file format parsing on the audio file to parse out the data structure for decoding, and further perform decoding to obtain decoded PCM data.
At this time, the control unit is also configured to call the IRAM262 of the audio processing chip 26 itself in real time to perform data interaction with the audio processing module 261, so that access of the LPDDR23 can be saved.
The decoded PCM data is bluetooth-encoded by the audio processing module 261 and the encoded audio data is output to the bluetooth control module 29.
At this time, the control unit is also configured to call the inter-core shared SRAM27 to perform data interaction between the audio processing module 261 and the bluetooth control module 29.
The control unit is further configured to invoke the audio processing module 261 to output the decoded PCM data to the Codec24 terminal for digital-to-analog conversion and output the analog audio data to the speaker 28.
In response to selecting the audio processing path based on the master chip 22, the control unit is configured to invoke the master chip 22 to perform file format parsing on the audio file to parse out the data structure for decoding by the decoder, and to transmit the data to the decoder for further decoding to obtain decoded PCM data.
At this time, the control unit is configured to call LPDDR23 in real time to perform data interaction with the master chip 22.
The control unit is further configured to output the PCM data decoded by the main control chip 22 to the Codec24 for digital-to-analog conversion, and output the analog audio data to the speaker 28 for playing.
The control unit is further configured to output the PCM data decoded by the main control chip 22 to the bluetooth Host 25 for encoding and sending, and send the received Host data to the bluetooth control module 29 for playing.
The wearable equipment that this embodiment provided through introducing special audio frequency and handling the chip and providing the mode of selecting the audio frequency and handling the route, can save the access of main control chip to LPDDR effectively, has realized optimizing the broadcast flow effectively and has reduced the front end data and read the frequency to under having realized providing the prerequisite of high performance, reduced the consumption effectively, and then it is long to have promoted the standby of wearable equipment such as intelligent wrist-watch.
Fig. 3 is a schematic structural diagram of an electronic device according to another embodiment of the present invention. The electronic device comprises a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the audio processing method of the wearable device as in the above embodiments when executing the program. The electronic device 30 shown in fig. 3 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiment of the present invention.
As shown in fig. 3, the electronic device 30 may be embodied in the form of a general purpose computing device, which may be, for example, a server device. The components of the electronic device 30 may include, but are not limited to: the at least one processor 31, the at least one memory 32, and a bus 33 connecting the various system components (including the memory 32 and the processor 31).
The bus 33 includes a data bus, an address bus, and a control bus.
The memory 32 may include volatile memory, such as Random Access Memory (RAM)321 and/or cache memory 322, and may further include Read Only Memory (ROM) 323.
Memory 32 may also include a program/utility 325 having a set (at least one) of program modules 324, such program modules 324 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which, or some combination thereof, may comprise an implementation of a network environment.
The processor 31 executes various functional applications and data processing, such as an audio processing method of the wearable device in the above embodiment of the present invention, by running the computer program stored in the memory 32.
The electronic device 30 may also communicate with one or more external devices 34 (e.g., keyboard, pointing device, etc.). Such communication may be through input/output (I/O) interfaces 35. Also, model-generating device 30 may also communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet) via network adapter 36. As shown in FIG. 3, network adapter 36 communicates with the other modules of model-generating device 30 via bus 33. It should be understood that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the model-generating device 30, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (disk array) systems, tape drives, and data backup storage systems, etc.
It should be noted that although in the above detailed description several units/modules or sub-units/modules of the electronic device are mentioned, such a division is merely exemplary and not mandatory. Indeed, the features and functionality of two or more of the units/modules described above may be embodied in one unit/module according to embodiments of the invention. Conversely, the features and functions of one unit/module described above may be further divided into embodiments by a plurality of units/modules.
The present embodiment also provides a computer-readable storage medium on which a computer program is stored, which when executed by a processor implements the steps in the audio processing method of the wearable device as in the above embodiments.
More specific examples, among others, that the readable storage medium may employ may include, but are not limited to: a portable disk, a hard disk, random access memory, read only memory, erasable programmable read only memory, optical storage device, magnetic storage device, or any suitable combination of the foregoing.
In a possible embodiment, the invention may also be implemented in the form of a program product comprising program code for causing a terminal device to perform the steps of the audio processing method implementing the wearable device as in the above embodiment, when the program product is run on the terminal device.
Where program code for carrying out the invention is written in any combination of one or more programming languages, the program code may execute entirely on the user device, partly on the user device, as a stand-alone software package, partly on the user device and partly on a remote device or entirely on the remote device.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims (16)

1. The audio processing method of the wearable equipment is characterized in that an audio processing chip is arranged on the wearable equipment;
the audio processing method comprises the following steps:
acquiring an audio file;
and judging whether the acquired audio file is transmitted to the audio processing chip or not according to an audio processing path specified in a preset strategy, if so, calling the audio processing chip to perform audio processing on the audio file and output audio data after the audio processing.
2. The audio processing method of claim 1, further comprising:
and judging whether the acquired audio file is transmitted to the audio processing chip or not according to an audio processing path appointed in a preset strategy, if not, calling a main control chip of the wearable device to perform audio processing on the audio file and output audio data after the audio processing.
3. The audio processing method of claim 1, wherein the step of invoking the audio processing chip to perform audio processing on the audio file and output audio-processed audio data comprises:
calling an audio processing module of the audio processing chip to sequentially perform format analysis and decoding processing on the audio file so as to obtain decoded PCM data;
and carrying out Bluetooth coding on the decoded PCM data through the audio processing module and outputting the coded audio data to a Bluetooth control module of the wearable device.
4. The audio processing method of claim 3, wherein in the step of calling the audio processing module, the IRAM of the audio processing chip is called to perform data interaction with the audio processing module.
5. The audio processing method of claim 3, wherein in the step of outputting the encoded audio data to a Bluetooth control module, inter-core shared SRAM of the wearable device is invoked to perform data interaction between the audio processing module and the Bluetooth control module.
6. The audio processing method of claim 3, further comprising:
and outputting the decoded PCM data to a Codec end for digital-to-analog conversion and outputting analog audio data to a loudspeaker of the wearable device.
7. The audio processing method according to any one of claims 1 to 6, wherein the wearable device comprises a smart watch or a smart bracelet.
8. A wearable device is characterized by comprising a control unit and an audio processing chip;
the control unit is configured to acquire an audio file;
the control unit is further configured to judge whether the acquired audio file is transmitted to the audio processing chip according to an audio processing path specified in a preset strategy, and if so, call the audio processing chip to perform audio processing on the audio file and output audio data after the audio processing.
9. The wearable device of claim 8, wherein the control unit is further configured to determine whether to transmit the acquired audio file to the audio processing chip according to an audio processing path specified in a preset policy, and if not, invoke a main control chip of the wearable device to perform audio processing on the audio file and output audio data after the audio processing.
10. The wearable device of claim 8, wherein when the audio processing chip is invoked, the control unit is configured to:
calling an audio processing module of the audio processing chip to sequentially perform format analysis and decoding processing on the audio file so as to obtain decoded PCM data;
and carrying out Bluetooth coding on the decoded PCM data through the audio processing module and outputting the coded audio data to a Bluetooth control module of the wearable device.
11. The wearable device of claim 10, wherein when the audio processing module is invoked, the control unit is configured to invoke an IRAM of the audio processing chip to perform data interaction with the audio processing module.
12. The wearable device of claim 10, wherein when outputting the encoded audio data to a bluetooth control module, the control unit is configured to invoke inter-core shared SRAM of the wearable device to perform data interaction between the audio processing module and the bluetooth control module.
13. The wearable device of claim 10, wherein the control unit is further configured to invoke the audio processing chip to output the decoded PCM data to a Codec terminal for digital-to-analog conversion and output analog audio data to a speaker of the wearable device.
14. The wearable device according to any of claims 8-13, wherein the wearable device comprises a smart watch or a smart bracelet.
15. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the computer program performs the steps of the audio processing method of the wearable device according to any of claims 1 to 7.
16. A computer readable medium having stored thereon computer instructions, characterized in that the computer instructions, when executed by a processor, implement the steps of the audio processing method of a wearable device according to any of claims 1-7.
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