CN105992093B - A kind of adjustment method and device of Baffle Box of Bluetooth call tone quality - Google Patents
A kind of adjustment method and device of Baffle Box of Bluetooth call tone quality Download PDFInfo
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Abstract
The invention discloses the adjustment methods and device of a kind of Baffle Box of Bluetooth call tone quality, to solve the problems, such as that Bluetooth audio frequency data analysis capabilities and analysis efficiency are low.The device includes: receiving module, data resolution module and voice data preserving module, wherein receiving module is used to obtain the data packet of bluetooth mould group control terminal, and data packet includes the data of data packet and status indicator two parts of data packet；Data resolution module, the data packet for being analyzed and acquired by obtain the parsing result of data packet, and according to parsing result, filter out VoP and be saved in voice data preserving module；Voice data preserving module, for the VoP filtered out to be split as voice data and status indicator two parts, voice data part is saved in L channel and the status indicator part after amplifying x times is saved in right channel, and carry out the synchronism output of left and right acoustic channels data, thus, it is possible to promote the analysis ability and analysis efficiency of Bluetooth audio frequency data.
Description
Technical field
The present invention relates to Bluetooth technology field more particularly to a kind of adjustment methods and device of Baffle Box of Bluetooth call tone quality.
Background technique
As shown in fig.1, by encoded speech data and encrypting when mobile phone communication, then pass through radio frequency signal (RF)
It is sent to speaker.Controller (Controller) end of speaker receives aerial voice data and parsing, then passes through UART (string
Mouthful) it is sent to the end Host (master control) of speaker.Host (master control) carries out some post-processings after receiving data and then just loses to DAC
(digital analog converter) holds output sound from the Speaker (loudspeaker) of speaker, and wherein Controller (controller) is external indigo plant
Tooth mould group, Host (master control) are the main control chips of Baffle Box of Bluetooth.When we think to analyze Controller (controller) hair in real time
It when giving the voice data of Host (master control), generally requires by third party's tool, because of the hardware resource at the end Host (master control)
(dominant frequency, memory, storage) is limited.Third party's tool, that is, UART sniffer (serial ports monitor), usually used has Ellisys
Or Frontline two Bluetooth protocol analyzers.
These Bluetooth protocol analyzers can grab aerial or UART (serial ports) all blue-teeth datas, and exist in real time
The end PC software kit parses data, and the research and debugging to usually bluetooth protocol repertory all have very great help.
But these analysis tools all only support all voice data for exporting as wav format that will be grabbed.Work as use
It derived from audio analysis tool analysis when wav file, may find that certain section of sound is abnormal, at this moment need to confirm this part sound
Frequency is needed back in the matched PC tool of sniffer, according to whether there is packet loss or wrong packet from the blue-teeth data grabbed
Corresponding data frame is found out in the inside, is confirmed whether packet loss or wrong packet according to the status information of frame head, this is one quite cumbersome
With the process of inefficiency.
Obviously there is staccato in white positions as shown in Figure 2, when we want to confirm whether the audio data of white portion occurs
When packet loss, it would be desirable to the timestamp of audio data initial position is first found from PC tool, if Fig. 3 is 148.316s, then plus
The time migration 6.588s for wanting to check position in figure 2 above, obtains 154.904s.Position shown in Fig. 4 is found, as the audio data
Corresponding initial data, the state (status) for analyzing its data frame is that data portion loses (data partially loss),
I.e. corresponding audio data has packet loss.
And mistake is wrapped, then it can not be found from audio analysis tool.
In addition, can not simulate main control end (Host) on PC using audio file derived from UART sniffer carries out packet loss
Compensation deals, can not easily count the error rate and Fault Distribution situation of audio data, and then strongly limit to sound
The analysis ability of frequency evidence.
Summary of the invention
The object of the present invention is to provide the adjustment methods and device of a kind of Baffle Box of Bluetooth call tone quality, to solve the prior art
Bluetooth audio frequency data analysis capabilities and the low problem of analysis efficiency.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of debugging apparatus of Baffle Box of Bluetooth call tone quality, comprising:
Receiving module, for obtaining the data packet of bluetooth mould group control terminal, the data packet include data packet data and
Status indicator two parts of data packet；
Data resolution module, the data packet for being analyzed and acquired by obtain the parsing result of data packet, and tie according to parsing
Fruit filters out VoP and is saved in voice data preserving module；
The voice data preserving module, for the VoP filtered out to be split as voice data and status indicator
Voice data part is saved in L channel and the status indicator part after amplifying x times is saved in right channel by two parts
In, and the synchronism output of left and right acoustic channels data is carried out, wherein x is the positive number of setting.
Voice data is analyzed by homemade bluetooth debugging apparatus in this way, purchase UARTsniffer is can be avoided and generates
Relatively large overhead, and the implementation method for making debugging tool by oneself is simple, and hardware requirement is low, only need to have and can receive controller end
The development board of UART interface data function, it is often more important that the audio data after being grabbed by homemade bluetooth debugging apparatus
It is simple and clear, it is easy to analyze, can be used for emulating the end Host to the treatment process of audio data, to is carried out to the processing of the end Host excellent
Change, moreover it is possible to further the voice data of real time phone call be assessed.
Optionally, the type of data packet that the receiving module is obtained from bluetooth mould group control terminal is host controller interface
Any number of combination of HCI command packet, HCI asynchronous data packets, HCI synchronization packets and HCI event package, wherein HCI is synchronous
Data packet is VoP.
Optionally, the data packet being analyzed and acquired by, when obtaining the parsing result of data packet, the data resolution module is specific
For:
After receiving module gets the data packet, for the data portion of data packet, the data of 1 byte are obtained, really
Determine the type of data packet and the packet header length of data packet；
Packet header length based on data packet, obtains the header data of data packet, determines the data length of data packet, is solved
Analyse result.
Optionally, according to parsing result, when filtering out VoP and being saved in voice data preserving module, the data
Parsing module is specifically used for:
According to the parsing result of data packet, judge whether the type of the data packet is HCI synchronization packets, if so,
It is VoP by the packet marking；Otherwise, the data length according to the data packet loses the data packet；
The data packet that all labels are is filtered out, the parsing result based on the VoP will be described
VoP is saved in the voice data preserving module.
Optionally, the VoP filtered out is split as voice data and status indicator two parts, by voice data
Part is saved in L channel and the status indicator part after amplifying x times is saved in right channel, and carries out left and right acoustic channels
When the synchronism output of data, the voice data preserving module is specifically used for:
The VoP filtered out is split as voice data and status indicator two parts, voice data part is saved
It is saved in right channel into L channel and by the status indicator part after amplifying x times, and by the voice number in L channel
Registration process is carried out according to status indicator part in part and corresponding right channel, and carries out synchronism output.
A kind of analytical equipment of Baffle Box of Bluetooth call tone quality, comprising:
Speech data extraction module, the voice number exported in the debugging apparatus for receiving above-mentioned Baffle Box of Bluetooth call tone quality
According to packet, voice data is extracted from the VoP, by the voice data part and status indicator part of VoP
It is separated, obtains the voice data and status indicator of the VoP；
Voice data weight alignment module, for voice data and status indicator based on the VoP, by voice
The size of data packet is adjusted to the size of the VoP of air transmission, and carries out for the status indicator of VoP
Correcting process obtains revised VoP, and is output to voice data preserving module；
Voice data PLC processing module, for obtaining revised VoP, and according to the status indicator of data packet
Judge whether the data of corresponding data packet carry out Discarded Packets compensation processing, if so, carrying out Discarded Packets compensation processing；Otherwise, it carries out
Simple smooth processing, the VoP that obtains that treated, and it is output to the voice data preserving module；
Voice data statistical module is used for from voice data weight alignment module and voice data PLC processing module acquisition place
Data packet in reason is for statistical analysis, obtains statistical result, and is output to the voice data preserving module；
Voice data preserving module is used for voice data weight alignment module, voice data PLC processing module and voice number
The output file of module is saved according to statistics.
In such manner, it is possible to carry out detailed analysis further directed to the voice data of bluetooth debugging apparatus output, analytic process is straight
It sees, analysis efficiency is high, improves the analysis ability for audio data, and analyze visual result.
A kind of adjustment method of Baffle Box of Bluetooth call tone quality, comprising:
The data packet of bluetooth mould group control terminal is obtained, the data packet includes the data of data packet and the state mark of data packet
Know two parts；
The data packet being analyzed and acquired by obtains the parsing result of data packet, and according to parsing result, filters out voice data
It wraps and is saved；
The VoP filtered out is split as voice data and status indicator two parts, voice data part is saved
It is saved in right channel into L channel and by the status indicator part after amplifying x times, and carries out the same of left and right acoustic channels data
Step output, wherein x is the positive number of setting.
Audio data after grabbing in this way is simple and clear, is easy to analyze, can be used for emulating the end Host to the place of audio data
Reason process, to be optimized to the processing of the end Host, moreover it is possible to further assess the voice data of real time phone call.
Optionally, from bluetooth mould group control terminal obtain type of data packet be host controller interface HCI command packet,
Any number of combination of HCI asynchronous data packets, HCI synchronization packets and HCI event package, wherein HCI synchronization packets are voice number
According to packet.
Optionally, the data packet being analyzed and acquired by obtains the parsing result of data packet, specifically includes:
After getting the data packet, for the data portion of data packet, the data of 1 byte is obtained, determine data packet
Type and data packet packet header length；
Packet header length based on data packet, obtains the header data of data packet, determines the data length of data packet, is solved
Analyse result.
Optionally, it according to parsing result, filters out VoP and is saved in voice data preserving module, specifically include:
According to the parsing result of data packet, judge whether the type of the data packet is HCI synchronization packets, if so,
It is VoP by the packet marking；Otherwise, the data length according to the data packet loses the data packet；
The data packet that all labels are is filtered out, the parsing result based on the VoP will be described
VoP is saved.
Optionally, the VoP filtered out is split as voice data and status indicator two parts, by voice data
Part is saved in L channel and the status indicator part after amplifying x times is saved in right channel, and carries out left and right acoustic channels
The synchronism output of data, specifically includes:
The VoP filtered out is split as voice data and status indicator two parts, voice data part is saved
It is saved in right channel into L channel and by the status indicator part after amplifying x times, and by the voice number in L channel
Registration process is carried out according to status indicator part in part and corresponding right channel, and carries out synchronism output.
A kind of analysis method of Baffle Box of Bluetooth call tone quality, comprising:
The VoP exported in the adjustment method according to Baffle Box of Bluetooth call tone quality is received, from the VoP
The voice data part of VoP and status indicator part are separated, obtain the voice by middle extraction voice data
The voice data and status indicator of data packet；
The size of VoP is adjusted to pass in the air by voice data and status indicator based on the VoP
The size of defeated VoP, and it is modified processing for the status indicator of VoP, obtain revised language
Sound data packet, and exported；
It obtains revised VoP, and judges that the data of corresponding data packet are according to the status indicator of data packet
No progress Discarded Packets compensation processing, if so, carrying out Discarded Packets compensation processing；Otherwise, simple smooth processing is carried out, obtains that treated
VoP, and exported；
Statistical is carried out from the data packet in voice data weight alignment module and voice data PLC processing module acquisition processing
Analysis, obtains statistical result, and exported；
The file for obtaining output is saved.
In such manner, it is possible to carry out detailed analysis further directed to the voice data of bluetooth debugging apparatus output, analytic process is straight
It sees, analysis efficiency is high, improves the analysis ability for audio data, and analyze visual result.
Detailed description of the invention
Fig. 1 is the debugging apparatus schematic diagram of call voice data in the prior art；
Fig. 2 is that audio data the schematic diagram of packet loss occurs；
Fig. 3 and Fig. 4 passes through audio analysis job analysis result schematic diagram to be existing；
Fig. 5 is the debugging apparatus schematic diagram of the call voice data during the present invention is implemented；
Fig. 6 is the structural schematic diagram of UART tool during the present invention is implemented；
Fig. 7 is the structure connection diagram of UART tool in the embodiment of the present invention；
Fig. 8 is the operation principle schematic diagram of UART tool in the embodiment of the present invention；
Fig. 9 is UART data process of analysis schematic diagram in the embodiment of the present invention；
Figure 10 is the voice data schematic diagram that UART tool is saved in the embodiment of the present invention；
Figure 11 is the amplified schematic diagram of the voice data of UART tool preservation in the embodiment of the present invention；
Figure 12 is the operation principle schematic diagram of Baffle Box of Bluetooth call tone quality analytical equipment in the embodiment of the present invention；
Figure 13 is the structural framing schematic diagram of analytical equipment in the embodiment of the present invention；
Figure 14 is the status diagram of hollow middle data packet and the end UART VoP of the embodiment of the present invention；
Figure 15 is the output result schematic diagram of analytical equipment in the embodiment of the present invention；
Figure 16 is voice data schematic diagram of the voice data after overweight registration process in the embodiment of the present invention in Figure 11；
Figure 17 is that the voice data in the embodiment of the present invention in Figure 11 shows by the voice data of PLC before and after treatment
It is intended to；
Figure 18 is the amplified schematic diagram of the part of speech data of Figure 17 in the embodiment of the present invention；
Figure 19 is the output result schematic diagram of the speech data analysis statistical module of analytical equipment during the present invention is implemented；
Figure 20 is the part of speech schematic diagram data for influencing PLC processing that analytical equipment is input in the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, is not whole embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to solve the disadvantage that serial ports monitor (UART sniffer) is unable to satisfy to audio data efficient analysis, in conjunction with
Self-demand, using homemade UART tool, specific framework is as shown in fig.5, self-control serial ports monitors tool (UART tool)
It is mainly made of UART receiving module, UART data resolution module and UART voice data preserving module three parts, specific module
It constitutes refering to shown in Fig. 6.UART receiving module is responsible for the initialization of UART associated hardware interfaces and reception and the hair of UART data
It send and (only needs receive capabilities here)；UART data resolution module be mainly responsible for from UART receiving module obtain UART data and by
Data parsing is carried out according to the format of Bluetooth Host Controller interface (HCI) data, is given to obtain desired SCO data packet
UART voice data preserving module；UART voice data preserving module, which is mainly responsible for, saves voice data according to specific format
It into storage medium, can both be saved in storage card, and can also be transferred on PC and be saved by universal serial bus (USB).
Requirement due to UART tool to hardware is relatively low, so can be readily convenient in development resources usually
The development board for finding the condition of satisfaction made.The plate for having selected old UTS2825 scheme to carry in present invention implementation
Son is used as UART tool, has the UART interface and card slot for meeting RS232 standard.By Baffle Box of Bluetooth development board bluetooth mould group
TX mouthfuls of leads of UART, be connected on RX mouthfuls of leads of UART of UART tool, be inserted into the safe digital card of an enough capacity
(SD card) powers on voice data when can grab call in real time to plank and is analyzed.It needs to guarantee in addition there are a bit
Be two boards altogether, otherwise UART can not normal sending and receiving data, specific schematic diagram is refering to shown in Fig. 7
Below by taking UART receiving module, UART data resolution module and UART voice data preserving module as an example, introduce
UART tool working principle is as follows, specifically sees shown in Fig. 8:
Step 800:UART tool receiving module obtains the data packet of bluetooth mould group control terminal, and data packet includes data packet
Data and data packet status indicator two parts.
Further, the type of data packet that UART tool receiving module is obtained from bluetooth mould group control terminal is HCI command number
According to packet, any number of combination of HCI asynchronous data packets, HCI synchronization packets and HCI event package, wherein HCI synchronization packets are language
Sound data packet.
It is defined according to bluetooth core specification, the interaction at the end Controller and the end Host is completed by HCI, HCI
It is divided into following 4 seed type packet, is specifically shown in Table 1
Table 1
Specifically, the format of the data packet of HCI specified in agreement is seen shown in Fig. 9, here by 4 kinds of HCI data packets
Format is summarized as following 4 expression formulas.
HCI Command Packet:1byte type+3bytes header+N bytes data (N=header
[2])
HCI ACL Data Packet:1byte type+4bytes header+N bytes data (N=header
[2]|(header[3]<<8))
HCI Synchronous Data Packet:1byte type+3bytes header+N bytes data (N=
header[2])
HCI Event Packet:1byte type+2bytes header+N bytes data (N=header [1])
Specifically, VoP includes the data of data packet and status indicator two parts of data packet.Refering to 2 institute of table
Showing, the status indicator of VoP is indicated with binary representation, there are 00,01,10,11 4 seed types, and data are then
For the voice data really needed when analysis.The correspondence meaning of four type offset of status indicator can probably understand preferably packet, mistake
Packet, packet loss, part packet loss, wherein the status indicator of data packet, is sent by bluetooth module controller and is included in data packet.
Table 2
The data packet that the data resolution module of step 801:UART tool is analyzed and acquired by obtains the parsing knot of data packet
Fruit, and according to parsing result, filter out the voice data preserving module that VoP is saved in UART tool.
Specifically, the data packet that the data resolution module of UART tool is analyzed and acquired by, obtains the parsing knot of data packet
Fruit, detailed process are as follows: after UART tool receiving module gets data packet, for the data portion of data packet, obtain 1 word
The data of section determine the type of data packet and the packet header length of data packet；It is based further on the packet header length of data packet, obtains number
According to the header data of packet, the data length of data packet is determined, obtain parsing result.
Specifically, the data resolution module of UART tool filters out VoP and is saved according to according to parsing result
The voice data preserving module of UART tool, detailed process are as follows: according to the parsing result of data packet, judge the type of data packet
It whether is HCI synchronization packets, if so, being voice data school bag by the packet marking；Otherwise, according to the number of the data packet
According to length, which is lost；Filter out the data packet that all labels are, the solution based on the VoP
The VoP is saved in the voice data preserving module of UART tool by analysis result.
For example, as shown in fig.9, the data parsing of UART tool is mainly the cyclic process of state conversion, first
The type state of 1 byte data parsing data packet, i.e. execution step 901 are obtained when initial, are then converted to parsing packet header state,
Step 902 is executed, the header data for obtaining data packet is parsed, and determines the length of data, is finally parsing data packet
The voice data that the data packet is sent to UART tool is then saved mould if VoP by data, i.e. execution step 903
Block, if not VoP, then carry out discard processing for the VoP according to the length of the data packet.In these three mistakes
Cheng Zhong, there is the abnormal original state i.e. step 901 that can all return to parsing Packet type in any one state, same when being resolved to HCI
When step data packet (Synchronous Data Packet), the VoP as needed gives the VoP
The voice data preserving module of UART tool is handled, and for the data packet of other three types, then it directly skips over, continues to solve
Analyse remaining data packet.
The VoP filtered out is split as voice data by the voice data preserving module of step 802:UART tool
With status indicator two parts, voice data part is saved in L channel and protects the status indicator part after amplifying x times
It is stored in right channel, and carries out the synchronism output of left and right acoustic channels data, wherein x is the positive number of setting.
For example, the language that the voice data preserving module of UART tool will be received from the data resolution module of UART tool
Sound data packet (Synchronous Data Packet) is split as voice data (Data) and status indicator two parts.
Specifically, the VoP filtered out is split as voice data by the voice data preserving module of UART tool
With status indicator two parts, voice data part is saved in L channel and protects the status indicator part after amplifying x times
Be stored in right channel, and by L channel voice data part and corresponding right channel in status indicator part be aligned
Processing, and carry out synchronism output.
In order to keep the voice data result preserved more intuitive, preferably, voice data preserving module is by voice number
According to being partially saved in L channel, and the value of status indicator carries out 1000 times and amplifies and be saved in the corresponding right channel of voice data
In.As shown in fig.10, the top of the segmentation of white line shown in white ovals 1 is left channel data, it is below right data, i.e.,
Primary voice data when top is call, is the corresponding status of voice data below.By white bottom shown in white ovals 2
Image as shown in figure 11 is obtained after corresponding left and right acoustic channels amplification, can intuitively find out that data shown in white ovals 1 are
One numerical value is all 0 flat line, packet loss occurs, while its corresponding right channel numerical value such as white ovals 2 show a number
The flat line that value is 2000, also implies that packet loss occurs in corresponding voice data.And what can just be omited from Figure 10 finds out this
The voice data of call is more satisfactory, and the place for packet loss and wrong packet occur is less, it can be seen that UART Tool is directed to voice
Data are analyzed more quick and precisely.
The file of one entitled sco.pcm of voice data preserving module final output of UART Tool, from Figure 10
See the result schematic diagram of audio analysis tool UART Tool output.
A kind of analytical equipment of Baffle Box of Bluetooth call tone quality is also provided in the embodiment of the present invention, is applied in client, it can
By running the function that program realizes the analytical equipment at the end PC, it is aligned again with speech data extraction module, voice data below
For module, voice data PLC processing module, voice data statistical module and voice data preserving module, analysis dress is introduced
The working principle set is as follows, specifically sees shown in Figure 12, wherein the framework of analytical equipment is seen shown in Figure 13:
Step 120: the speech data extraction module of analytical equipment receives the VoP exported in UART Tool, from
Voice data is extracted in the VoP, the voice data part of VoP and status indicator part are separated,
Obtain the voice data and status indicator of the VoP；
Step 121: voice data weight voice data and state of the alignment module based on the VoP of analytical equipment
The size of VoP, is adjusted to the size of the VoP of air transmission, and for VoP by mark
Status indicator is modified processing, obtains revised VoP, and is output to voice data preserving module；
Step 122: the voice data PLC processing module of analytical equipment obtains revised VoP, and according to number
Judge whether to need to carry out Discarded Packets compensation processing according to the status indicator of packet, if so, carrying out Discarded Packets compensation processing；Otherwise, it carries out
Simple smoothing processing, the VoP that obtains that treated, and it is output to voice data preserving module.
Step 123: the voice data statistical module of analytical equipment is from voice data weight alignment module and voice data PLC
The data packet managed in module acquisition processing is for statistical analysis, obtains statistical result, and be output to voice data preserving module.
Step 124: the voice data preserving module of analytical equipment will be at voice data weight alignment module, voice data PLC
Reason module and the output result of voice data statistical module are saved.
For example, the analytical equipment can be developed quickly using sco.pcm file as input using resource powerful on PC
One console application program, the processing at emulation master control (Host) end, is analyzed so as to the Processing Algorithm to the end Host
And optimization.
Refering to fig. 1 shown in 3, the end PC console application program (analytical equipment) is mainly by 5 module compositions.Wherein, voice
Data extraction module 130 is responsible for extracting voice data from the sco.pcm file of input, and voice data and status indicator are separated
Come and gives voice data weight alignment module 131.The purpose of voice data weight alignment module 131 is an attempt to restore aerial really number
According to packet and its state.Refering to fig. 1 shown in 4, since the recombination at the end controller (Controller) leads to the master control (Host) given
Data packet (Packet) size at end becomes 48bytes, not with the Packet size 60bytes that uses when aerial actual transmissions
Deng, and then cause to waste the partial data for being practically without packet loss in the air for packet loss due to status indication.For these waves
Take, voice data weight alignment module 131 size of Packet can be reverted to 60bytes from 48bytes and to correct its corresponding
State；Voice data weight alignment module 131 can data give the progress of voice data PLC processing module 132 end PC by treated
Simulation process gives voice data statistical module 133 assistant analysis, gives each phase data preserving module 134 and carries out output knot
Fruit saves；Voice data PLC processing module 132 is mainly will be on the PLC processing code migrating to PC at the end Host on Baffle Box of Bluetooth
Synchronize simulation process.The module includes that Discarded Packets compensation processing is judged whether to according to state；Voice data counts mould
Language near when 133 principal statistical of block leads to not obtain optimal PLC treatment effect due to no enough forward direction valid data
Error rate in the sound data section time；Voice data preserving module 134 is mainly by voice data weight alignment module 131, voice
Data PLC processing module 132 and the output result of voice data statistical module 133 are saved in file.
Refering to fig. 1 shown in 5, using sco.pcm file as input, the end PC console application program (analytical equipment) is final defeated
Tri- files of realign_sco.pcm, plc_sco.pcm and info_sco.txt respectively correspond voice data weight alignment module out
131, voice data PLC processing module 132 and the processing result of voice data statistical module 133.Front is shown refering to 16
Figure 11 is by treated the result of voice data weight alignment module 131, it can be seen that shown in Figure 11 white ovals 3 originally label for
The corresponding position label of packet loss does not preferably wrap (00) to the data of part packet loss as shown in Figure 16 white ovals after amendment.
It is solid that a sample rate is 8KHz that user can see with audio analysis tool open plc_sco.pcm file
Sound frequency file, as shown in figure 17.Wherein, white horizontal line top be divided into left channel data represent carry out PLC compensation before language
Sound data, white horizontal line lower part are divided into right data and represent the progress compensated voice data of PLC.By white bottom in Figure 17
Shown in data amplify, obtain result shown in Figure 18.In the frame of Figure 18, top voice data has disconnected part following
Voice data is continuous, that is, the compensated result of PLC.Sub comparison in this way, user can be to processing result not
Voice data at satisfied is analyzed, and the place dealt with improperly is seen if there is.
Figure 19 is speech data analysis statistical module as a result, the first row means the forward direction at 11.100s first
Valid data are inadequate, may cause that PLC treatment effect is undesirable, have 25% data invalid in forward direction 60ms, and practical
After carrying out PLC processing, it is invalid for having 50% data in forward direction 60ms.It is exactly the position of 11.100s at vertical dotted line in Figure 20
It sets, it can be seen that be implicitly present in the packet loss of one section of long period before vertical dotted line, will affect PLC treatment effect.But due to this
It is precisely quiet data in period, so influence only very slight when final sound output.
The hardware interface that bluetooth module controller (Controller) end is communicated with the end master control (Host) is in addition to using UART
(H4), it is also possible to use USB, SD, UART (H5), the other interfaces of PCM.Which kind of hardware communication interface no matter is used, can be used
The same adjustment method, only the acquisition methods of data are different.
In conclusion the data packet of bluetooth mould group control terminal is obtained in the embodiment of the present invention by homemade UART tool,
Data packet includes the data of data packet and status indicator two parts of data packet；And the data packet being analyzed and acquired by, obtain data
The parsing result of packet, and according to parsing result, it filters out VoP and is saved in voice data preserving module；And it will screening
VoP out is split as voice data and status indicator two parts, voice data part is saved in L channel and
Status indicator part after amplifying x times is saved in right channel, and carries out the synchronism output of left and right acoustic channels data, is passed through in this way
Homemade bluetooth debugging apparatus can be avoided to analyze voice data and buy the relatively large overhead that UART sniffer is generated, and
Self-control UART tool implementation method is simple, and hardware requirement is low, and need to only have can receive controller end UART interface data function
Development board, it is often more important that by UART tool grab after audio data it is simple and clear, be easy to analyze, can be used for
The end Host is emulated to the treatment process of audio data, to optimize to the processing of the end Host, moreover it is possible to further to real time phone call
Voice data assessed.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention
The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of debugging apparatus of Baffle Box of Bluetooth call tone quality characterized by comprising
Receiving module, for obtaining the data packet of bluetooth mould group control terminal, the data packet includes the data and data of data packet
Status indicator two parts of packet；
Data resolution module, the data packet for being analyzed and acquired by obtain the parsing result of data packet, and according to parsing result,
It filters out VoP and is saved in voice data preserving module；
The voice data preserving module, for the VoP filtered out to be split as voice data and status indicator two
Point, voice data part is saved in L channel and the status indicator part after amplifying x times is saved in right channel, with
And by L channel voice data part and corresponding right channel in status indicator part carry out registration process, and synchronize
Output, wherein x is the positive number of setting.
2. device as described in claim 1, which is characterized in that the data that the receiving module is obtained from bluetooth mould group control terminal
Packet type is host controller interface HCI command packet, HCI asynchronous data packets, HCI synchronization packets and HCI event package
Any number of combination, wherein HCI synchronization packets are VoP.
3. device as described in claim 1, which is characterized in that the data packet being analyzed and acquired by obtains the parsing knot of data packet
When fruit, the data resolution module is specifically used for:
After receiving module gets the data packet, for the data portion of data packet, the data of 1 byte is obtained, determine number
According to the type of packet and the packet header length of data packet；
Packet header length based on data packet, obtains the header data of data packet, determines the data length of data packet, obtains parsing knot
Fruit.
4. device as claimed in claim 1,2 or 3, which is characterized in that according to parsing result, filter out VoP preservation
When to voice data preserving module, the data resolution module is specifically used for:
According to the parsing result of data packet, judge whether the type of the data packet is HCI synchronization packets, if so, by institute
Stating packet marking is VoP；Otherwise, the data length according to the data packet loses the data packet；
Filter out it is all mark the data packet for being, the parsing result based on the VoP is by the voice
Data packet is saved in the voice data preserving module.
5. a kind of analytical equipment of Baffle Box of Bluetooth call tone quality characterized by comprising
Speech data extraction module, for receiving the VoP exported in the described device in claim 1, from institute's predicate
Voice data is extracted in sound data packet, the voice data part of VoP and status indicator part are separated, is obtained
The voice data and status indicator of the VoP；
Voice data weight alignment module, for voice data and status indicator based on the VoP, by voice data
The size of packet is adjusted to the size of the VoP of air transmission, and is modified for the status indicator of VoP
Processing, obtains revised VoP, and be output to voice data preserving module；
Voice data PLC processing module judges for obtaining revised VoP, and according to the status indicator of data packet
Whether the data of corresponding data packet carry out Discarded Packets compensation processing, if so, carrying out Discarded Packets compensation processing；Otherwise, it carries out simple
Smoothing processing, the VoP that obtains that treated, and it is output to the voice data preserving module；
Voice data statistical module, for from voice data weight alignment module and voice data PLC processing module acquisition processing
Data packet it is for statistical analysis, obtain statistical result, and be output to the voice data preserving module；
Voice data preserving module, for by voice data weight alignment module, voice data PLC processing module and voice data to be united
The output file of meter module is saved.
6. a kind of adjustment method of Baffle Box of Bluetooth call tone quality characterized by comprising
The data packet of bluetooth mould group control terminal is obtained, the data packet includes the data of data packet and the status indicator two of data packet
Part；
The data packet being analyzed and acquired by obtains the parsing result of data packet, and according to parsing result, filters out VoP simultaneously
It is saved；
The VoP filtered out is split as voice data and status indicator two parts, voice data part is saved in a left side
It is saved in right channel in sound channel and by the status indicator part after amplifying x times, and by the voice data portion in L channel
Divide and carry out registration process with status indicator part in corresponding right channel, and carry out synchronism output, wherein x is the positive number of setting.
7. method as claimed in claim 6, which is characterized in that the type of data packet obtained from bluetooth mould group control terminal is host
Any number of combination of control unit interface HCI command packet, HCI asynchronous data packets, HCI synchronization packets and HCI event package,
Middle HCI synchronization packets are VoP.
8. method as claimed in claim 6, which is characterized in that the data packet being analyzed and acquired by obtains the parsing knot of data packet
Fruit specifically includes:
After getting the data packet, for the data portion of data packet, the data of 1 byte is obtained, determine the class of data packet
The packet header length of type and data packet；
Packet header length based on data packet, obtains the header data of data packet, determines the data length of data packet, obtains parsing knot
Fruit.
9. the method as described in claim 6,7 or 8, which is characterized in that according to parsing result, filter out VoP preservation
To voice data preserving module, specifically include:
According to the parsing result of data packet, judge whether the type of the data packet is HCI synchronization packets, if so, by institute
Stating packet marking is VoP；Otherwise, the data length according to the data packet loses the data packet；
Filter out it is all mark the data packet for being, the parsing result based on the VoP is by the voice
Data packet is saved.
10. a kind of analysis method of Baffle Box of Bluetooth call tone quality characterized by comprising
The VoP according to the method output in claim 6 is received, extracts voice data from the VoP,
The voice data part of VoP and status indicator part are separated, the voice data of the VoP is obtained
And status indicator；
The size of VoP is adjusted to air transmission by voice data and status indicator based on the VoP
The size of VoP, and it is modified processing for the status indicator of VoP, obtain revised voice number
According to packet, and exported；
Obtain revised VoP, and according to the status indicator of data packet judge corresponding data packet data whether into
Row Discarded Packets compensation processing, if so, carrying out Discarded Packets compensation processing；Otherwise, simple smooth processing is carried out, the voice that obtains that treated
Data packet, and exported；
It is for statistical analysis from the data packet in voice data weight alignment module and voice data PLC processing module acquisition processing,
Statistical result is obtained, and is exported；
The file for obtaining output is saved.
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| CN201510099083.9A CN105992093B (en) | 2015-03-05 | 2015-03-05 | A kind of adjustment method and device of Baffle Box of Bluetooth call tone quality |
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| CN201510099083.9A CN105992093B (en) | 2015-03-05 | 2015-03-05 | A kind of adjustment method and device of Baffle Box of Bluetooth call tone quality |
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| CN102882846A (en) * | 2012-08-17 | 2013-01-16 | 广东世纪网通信设备有限公司 | IP voice restoration method and device |
| CN103955205A (en) * | 2014-04-16 | 2014-07-30 | 苏州汇川技术有限公司 | Remote debugging system and method of elevator controller |
| CN104283699A (en) * | 2013-07-01 | 2015-01-14 | 中兴通讯股份有限公司 | Method and device for determining service types |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20020016937A1 (en) * | 2000-08-02 | 2002-02-07 | Henry Houh | Method and apparatus for utilizing a network processor as part of a test system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102882846A (en) * | 2012-08-17 | 2013-01-16 | 广东世纪网通信设备有限公司 | IP voice restoration method and device |
| CN104283699A (en) * | 2013-07-01 | 2015-01-14 | 中兴通讯股份有限公司 | Method and device for determining service types |
| CN103955205A (en) * | 2014-04-16 | 2014-07-30 | 苏州汇川技术有限公司 | Remote debugging system and method of elevator controller |
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Address after: Room 105-1023, No.6 Baohua Road, Hengqin New District, Zhuhai City, Guangdong Province Patentee after: Ju Li (Zhuhai) Microelectronics Co., Ltd Address before: 519085 Guangdong city of Zhuhai province Hengqin Baohua Road No. 6, room 105 -1023 Patentee before: JUXIN (ZHUHAI) MICROELECTRONICS Co.,Ltd. |