CN103117065A - Average opinion grading phonetic test device, control method thereof and phonetic test method - Google Patents
Average opinion grading phonetic test device, control method thereof and phonetic test method Download PDFInfo
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Abstract
The invention discloses an average opinion grading management operating system (MOS) phonetic test device, a control method of the average opinion grading MOS phonetic test device and a phonetic test method. The test device is a mobile terminal which comprises an MOS module which is embedded in the mobile terminal. The MOS module comprises an encoding and decoding appliance which comprises a digital-analog converter and an analog-digital converter. The digital-analog converter is used for converting a digital sound signal which is output through a processor of the mobile terminal into an analog audio signal and sending the audio signal to a voice frequency matching circuit. The analog-digital converter is used for converting the analog audio signal which is input through the matching circuit into a digital audio signal and sending the digital audio signal to the processor of the terminal. The audio matching circuit is used for matching the analog audio signal output through the digital analog converter, sending the analog audio signal to an audio input end of the mobile terminal, matching the analog audio signal output through the audio output end of the mobile terminal and sending the analog audio signal to the analog-digital converter. The MOS phonetic test device is convenient to carry, high in reliability and low in cost.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of mean opinion score tone testing device and control method thereof, tone testing method.
Background technology
Along with the development of radio network technique and popularizing gradually of network, the client improves constantly the requirement of the whole QoS of voice of network, can say, the quality of voice quality directly affects the user for the selection of operator.And in prior art, the test and appraisal to the voice quality quality are mainly to realize by mean opinion score (Mean Opinion Score, MOS) test.The MOS test philosophy is exactly audio file and audio sample file subjective speech quality assessment (the Perceptual Evaluation of Speech Quality that will collect by transmission link, PESQ) algorithm compares evaluation and test, thereby reaches the purpose of estimating objectively quality of speech signal.Can accurate audio sample file be played to transmission terminal exactly and the scoring of MOS test is basic, and collect accurately sound signal from transmission terminal.
Traditional MOS voice collecting scheme as shown in Figure 1, the audio-frequency unit of testing mobile phone is connected to MOS box 102 by tone frequency channel wire 101, MOS box 102 is connected on notebook computer 104 by USB (universal serial bus) (Universal Serial BUS, USB line) 103.In MOS when test,, notebook computer 104 is sent to MOS box 102 by USB line 103 with sample audio file forms such as () WAV.It is simulating signal with digital signal transition that 102 pairs of sample audio file of MOS box are carried out D/A conversion, through match circuit and tone frequency channel wire 101 with voice transfer to caller testing mobile phone 105; 105 this moments of caller testing mobile phone and called testing mobile phone 106 have been in talking state (can directly control by manual dialup or AT instruction); Voice signal is sent to by eating dishes without rice or wine on called testing mobile phone 106 through a series of conversions.Called testing mobile phone 106 is sent to MOS box 102 with voice signal by tone frequency channel wire 101.It is digital signal with analog-signal transitions that 102 pairs of voice signals of MOS box carry out the A/D conversion, forms audio file; Again audio file is delivered to notebook computer 104 by the USB oral instructions.Adopt the PESQ algorithm that audio file and the sample audio file that receives compared scoring on notebook computer 104.
Can see that existing method of testing needs notebook computer, MOS box and testing mobile phone to cooperatively interact and could realize the MOS tone testing, indispensable.Its shortcoming is: at first, for the more and more indoor and outdoor coverage tests that need to walk about now, existing scheme weight is heavier, carries inconvenience; Secondly, more due to the link that has a plurality of cable connecting links and need manually to arrange, cause reliability relatively poor.The more important thing is the complicated operation of this method of testing: testing different networkings needs different testing mobile phones, and the Audio Matching circuit that will regulate simultaneously the MOS box coordinates with it.this point is along with China Mobile has clearly proposed it first at Long Term Evolution (Long Term Evolution, LTE) frequency requirement of terminal aspect: must support at least time-division Long Term Evolution (Time Division LTE, TD-LTE), Frequency Division Duplexing (FDD) Long Term Evolution (Frequency Division Duplexing LTE, FDD-LTE), global system for mobile communications (Globle Systerm for Mobile Communications, GSM), TD SDMA (Time Division-Synchronous Code Division Multiple Access, TD-SCDMA), CDMA (Wideband Code Division Multiple Access, WCDMA) after five kinds of standards, become more outstanding.
Summary of the invention
The technical matters that (one) will solve
The technical problem to be solved in the present invention is: a kind of easy to carry, reliability is high, cost is low mean opinion score tone testing device and control method thereof are provided, and the language testing method.
(2) technical scheme
For addressing the above problem, on the one hand, a kind of mean opinion score MOS tone testing device is characterized in that described proving installation is mobile terminal, comprises the MOS module that is embedded in described mobile terminal;
Described MOS module comprises:
Codec comprises digital to analog converter and analog to digital converter, and described digital to analog converter is used for the digital audio and video signals of the processor output of mobile terminal is converted to simulated audio signal and is sent to the Audio Matching circuit; Described analog to digital converter converts digital audio and video signals to for the simulated audio signal that the Audio Matching circuit is imported into and is sent to the processor of mobile terminal;
The Audio Matching circuit, be sent to the audio input end of mobile terminal after being used for the simulated audio signal that described digital to analog converter is exported is mated, and be sent to described analog to digital converter after the simulated audio signal that the audio output of mobile terminal is exported is mated.
Preferably, described proving installation further comprises the first selector switch, and an end is connected with described audio output, and the other end selects to connect the loudspeaker of described Audio Matching circuit or mobile terminal according to switch-over control signal.
Preferably, described proving installation further comprises the second selector switch, and an end is connected with described audio input end, and the other end selects to connect the microphone of described Audio Matching circuit or mobile terminal according to switch-over control signal.
Preferably, described proving installation further comprises the 3rd switch, is connected between described processor and described codec, is used for according to the switch-over control signal connection or disconnects described processor and codec.
Preferably, described codec is the general-purpose serial bus USB codec, comprises the usb protocol controller that is connected between described analog to digital converter, described digital to analog converter and described processor;
Described processor comprises USB interface, between described codec and described processor by being connected to the USB connection between described usb protocol controller and described USB interface.
Preferably, the processor of described mobile terminal comprises the testing evaluation module, is used for the sample audio file of processor transmission and the diaphone frequency file of reception are compared scoring.
On the other hand, the present invention also provides a kind of control method of above-mentioned MOS tone testing device, comprising:
Control mobile terminal and enter tone playing state;
The processor of mobile terminal is sent to sample audio file the codec of MOS module;
Described codec carries out described sample audio file to obtain simulated audio signal also through being input to the audio input end of mobile terminal after the Audio Matching Circuit Matching after digital-to-analog conversion;
Mobile terminal sends the described simulated audio signal of described audio input end input to Correspondent Node;
Control mobile terminal and enter recording state;
The simulated audio signal that the received communication opposite end sends;
Export the simulated audio signal of described reception to described Audio Matching circuit by audio output, then through being sent to the analog to digital converter of described codec after described Audio Matching Circuit Matching;
Described analog to digital converter forms the simulated audio signal that receives audio file and is sent to processor after analog to digital conversion.
Preferably, described proving installation also comprises:
One end is connected with described audio output, the other end is selected the first selector switch of the loudspeaker of the described Audio Matching circuit of connection or mobile terminal according to switch-over control signal;
One end is connected with described audio input end, the other end is selected the second selector switch of the microphone of the described Audio Matching circuit of connection or mobile terminal according to switch-over control signal; And,
Be connected to the 3rd switch between described processor and described codec;
When not needing to carry out the MOS tone testing, mobile terminal sends the first switch-over control signal, according to described the first switch-over control signal: described the first selector switch selects to be communicated with described audio output and described loudspeaker, the second selector switch selects to be communicated with described audio input end and described microphone, the 3rd switch disconnects, and mobile terminal has call function;
When needs carry out the MOS tone testing, mobile terminal sends the second switch-over control signal, according to described the second switch-over control signal: described the first selector switch selects to be communicated with described audio output and described Audio Matching circuit, described the second selector switch selects to be communicated with described audio input end and described Audio Matching circuit, described the 3rd switch is closed, and mobile terminal has the tone testing function.
Preferably, the processor of described mobile terminal comprises the testing evaluation module;
Also comprise after at described analog to digital converter, the simulated audio signal that receives being formed audio file after analog to digital conversion and being sent to the step of processor of described mobile terminal:
The testing evaluation module of described processor compares scoring with the sample audio file of transmission and the diaphone frequency file of reception, obtains the step of tone testing result.
Another aspect, the present invention also provides a kind of MOS tone testing method, comprising:
The first mobile terminal and the second mobile terminal enter talking state, and wherein said the first mobile terminal and the second mobile terminal are above-mentioned MOS tone testing device;
Control the first mobile terminal and enter tone playing state, the second mobile terminal enters recording state;
The processor output sample audio file of the first mobile terminal obtains the first simulated audio signal after the MOS resume module by described the first mobile terminal, is sent to described the second mobile terminal after the audio input end input by the first mobile terminal again;
Export the MOS resume module of the second mobile terminal after described the second described the first simulated audio signal of mobile terminal reception to by audio output, obtain outputing to after the first audio file the processor of the second mobile terminal, compare scoring with sample audio file in described the second mobile terminal processor;
Control the first mobile terminal and enter recording state, the second mobile terminal enters tone playing state;
The processor output sample audio file of the second mobile terminal obtains the second simulated audio signal after the MOS resume module by described the second mobile terminal, is sent to described the first mobile terminal after the audio input end input by the second mobile terminal again;
Export the MOS resume module of the first mobile terminal after described the first described the second simulated audio signal of mobile terminal reception to by audio output, obtain outputing to after the second audio file the processor of the first mobile terminal, compare scoring with sample audio file in described the first mobile terminal processor.
(3) beneficial effect
The present invention can be embedded into the function of MOS box in testing mobile phone, makes whole language testing installation weight greatly alleviate, and is convenient for carrying;
The present invention is integrated and automatic control setting due to the height of proving installation, has reduced the manually-operated link and has greatly improved testing reliability simultaneously;
The present invention tests different networkings and can automatically select the Audio Matching circuit by software because the Audio Matching circuit is embedded, and is easy to operate.
Description of drawings
Fig. 1 is the structural representation block diagram of prior art MOS language testing device;
Fig. 2 is structural representation block diagram a kind of according to the embodiment of the present invention of MOS tone testing device;
Fig. 3 is for being the structural representation according to the another kind of MOS tone testing of embodiment of the present invention device;
The control method process flow diagram of Fig. 4 MOS tone testing a kind of according to embodiment of the present invention device tone testing function;
Fig. 5 is process flow diagram a kind of according to the embodiment of the present invention of MOS tone testing method.
Embodiment
That the present invention is described in detail is as follows below in conjunction with drawings and Examples.
Embodiment one:
Figure 2 shows that a kind of MOS tone testing device of the present embodiment record, described proving installation is mobile terminal 200, comprises the MOS module 210 that is embedded in described mobile terminal 200;
Described MOS module 210 comprises:
Codec 211 comprises digital to analog converter 211a and analog to digital converter 211b, and described digital to analog converter 211a is used for the digital audio and video signals of processor 220 outputs of mobile terminal 200 is converted to simulated audio signal and is sent to Audio Matching circuit 212; Described analog to digital converter 211b converts digital audio and video signals to for the simulated audio signal that Audio Matching circuit 212 is imported into and is sent to the processor 220 of mobile terminal 200;
Therefore the present embodiment can select Audio Matching circuit 212 to test different networkings by corresponding software in mobile terminal 200 because Audio Matching circuit 212 is embedded in mobile terminal 200 automatically, easy to operate.
The present embodiment is embedded in MOS module 210 in mobile terminal 200, are connected by the existing processor 220 of mobile terminal 200 itself, audio input end 230 codec 211 and the Audio Matching circuit 212 that connects respectively MOS module 210 with audio output, making does not need mobile terminal 200 is carried out too large change, just can complete the embedded of MOS module 210, make the MOS tone testing installation cost that obtains low, measure reliable, volume is little, easy to carry.
Embodiment two:
Figure 3 shows that a kind of MOS tone testing device of the present embodiment record, the present embodiment comprises identical codec 310 and Audio Matching circuit 320 with embodiment one, but in the present embodiment, described proving installation also comprises:
The first selector switch 360, one ends are connected with described audio output 340, and the other end selects to connect the loudspeaker 390 of described Audio Matching circuit 320 or mobile terminal according to switch-over control signal;
The second selector switch 370, one ends are connected with described audio input end 330, and the other end selects to connect the microphone 3100 of described Audio Matching circuit 320 or mobile terminal according to switch-over control signal;
The 3rd switch 380 is connected between described processor 350 and described codec 310, is used for according to the switch-over control signal connection or disconnects described processor 350 and codec 310.
When described the first selector switch 360 selects to be communicated with described audio output 340 and described loudspeaker 390, the second selector switch 370 selects to be communicated with described audio input end 330 and described microphone 3100, when the 3rd switch 380 disconnects, the voice signal that mobile terminal receives is delivered to loudspeaker 390 through digital-to-analog conversion and amplification, and the user just can hear sound; The user is during by microphone 3100 speech, become digital signal by analog to digital conversion again by the sound of microphone 3100 inputs and sent into and output to Correspondent Node after the processor 350 of mobile terminal is processed.Can find out, this moment, mobile terminal was the common mobile terminal with normal talking function, for example mobile phone.
when described the first selector switch 360 selects to be communicated with described audio output 340 and described Audio Matching circuit 320, described the second selector switch 370 selects to be communicated with described audio input end 330 and described Audio Matching circuit 320, during described the 3rd switch 380 closure, formation is from processor 350---the sample audio file output audio link of codec 310---Audio Matching circuit 320---audio input end 330,---the audio file input voice frequency link of Audio Matching circuit 320---codec 310---processor 350 and from audio output 340, at this moment, mobile terminal has the tone testing function.
In the present embodiment, described codec 310 is general-purpose serial bus USB codec 310, comprises the usb protocol controller 313 that is connected between described analog to digital converter 311, described digital to analog converter 312 and described processor 350;
Described processor 350 comprises USB interface 351, between described codec 310 and described processor 350 by being connected to the USB connection between described usb protocol controller 313 and described USB interface 351.Certainly, in other embodiments of the invention, also can complete data transmission between processor 350 and codec 310 by the circuit of other form.
In the present embodiment, the processor 350 of described mobile terminal comprises the testing evaluation module, is used for the sample audio file of processor 350 transmissions and the diaphone frequency file of reception are compared scoring.When the processing power of mobile terminal processor 350 is higher, can the testing evaluation module be set directly in processor 350, compare scoring, make the volume and weight of proving installation further reduce, easy to use.For example the present embodiment can select the Snapdragon S4 of Qualcomm to move processor 350, and it not only supports all world-leading 2G, 3G and 4G LTE standard, and the frequency range of multi-core CPU is up to every core 1.5GHz ~ 2.5GHz.In other embodiments of the invention, when the processing power of mobile middle-end processor 350 is inadequate, also can complete by modes such as external computers the step of described testing evaluation.
Embodiment three:
The present embodiment has been put down in writing a kind of control method of MOS tone testing device of embodiment two announcements.
Described MOS tone testing device:
When not needing to carry out the MOS tone testing, mobile terminal sends the first switch-over control signal, according to described the first switch-over control signal: described the first selector switch selects to be communicated with described audio output and described loudspeaker, the second selector switch selects to be communicated with described audio input end and described microphone, the 3rd switch disconnects, and mobile terminal has call function;
When needs carry out the MOS tone testing, mobile terminal sends the second switch-over control signal, according to described the second switch-over control signal: described the first selector switch selects to be communicated with described audio output and described Audio Matching circuit, described the second selector switch selects to be communicated with described audio input end and described Audio Matching circuit, described the 3rd switch is closed, and mobile terminal has the tone testing function.
Concrete, in the time of need to carrying out the MOS tone testing, the 3rd switch of mobile terminal is at first closed, and codec is moved terminal recognition, sets up data link through work such as initialization.Described the first selector switch and the second selector switch switch to audio input end and output terminal to be connected on the Audio Matching circuit and set up voice frequency link with codec subsequently.
As shown in Figure 4, the control implementation procedure of the tone testing function of described mobile terminal is as follows:
S410: control mobile terminal and enter tone playing state;
S420: the processor of mobile terminal is sent to sample audio file the codec of MOS module;
S430: described codec carries out described sample audio file to obtain simulated audio signal also through being input to the audio input end of mobile terminal after the Audio Matching Circuit Matching after digital-to-analog conversion;
S440: mobile terminal sends the described simulated audio signal of described audio input end input to Correspondent Node;
S450: control mobile terminal and enter recording state;
S460: the simulated audio signal of received communication opposite end transmission;
S470: export the simulated audio signal of described reception to described Audio Matching circuit by audio output, then through being sent to the analog to digital converter of described codec after described Audio Matching Circuit Matching;
S480: described analog to digital converter forms the simulated audio signal that receives audio file and is sent to processor after analog to digital conversion;
S490: the testing evaluation module of described processor compares scoring with the sample audio file of transmission and the diaphone frequency file of reception, obtains the tone testing result.
Embodiment four:
Figure 5 shows that the process flow diagram of a kind of MOS tone testing method of the present embodiment record, comprising:
S510: the first mobile terminal and the second mobile terminal enter talking state, and wherein said the first mobile terminal and the second mobile terminal are identical, are the MOS tone testing device of embodiment one or embodiment two records; The first mobile terminal and the second mobile terminal synchronization module by mobile terminal in this process is completed clock synchronous;
S520: control the first mobile terminal and enter tone playing state, the second mobile terminal enters recording state;
S530: the processor output sample audio file of the first mobile terminal, obtain the first simulated audio signal after the MOS resume module by described the first mobile terminal, be sent to again described the second mobile terminal after the audio input end input by the first mobile terminal;
S540: the MOS resume module that exports the second mobile terminal after described the second described the first simulated audio signal of mobile terminal reception by audio output to, obtain outputing to after the first audio file the processor of the second mobile terminal, compare scoring with sample audio file (sample audio file that this sample audio file and first moves processor is identical) in described the second mobile terminal processor;
S550: control the first mobile terminal and enter recording state, the second mobile terminal enters tone playing state;
S560: the processor output sample audio file of the second mobile terminal, obtain the second simulated audio signal after the MOS resume module by described the second mobile terminal, be sent to again described the first mobile terminal after the audio input end input by the second mobile terminal;
S570: the MOS resume module that exports the first mobile terminal after described the first described the second simulated audio signal of mobile terminal reception by audio output to, obtain outputing to after the second audio file the processor of the first mobile terminal, compare scoring with sample audio file in described the first mobile terminal processor.
The present invention is embedded into the function of MOS box in testing mobile phone, makes whole language testing installation weight greatly alleviate, and is convenient for carrying, and has reduced the manually-operated link and has greatly improved testing reliability simultaneously.
Above embodiment only is used for explanation the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (10)
1. a mean opinion score MOS tone testing device, is characterized in that, described proving installation is mobile terminal, comprises the MOS module that is embedded in described mobile terminal;
Described MOS module comprises:
Codec comprises digital to analog converter and analog to digital converter, and described digital to analog converter is used for the digital audio and video signals of the processor output of mobile terminal is converted to simulated audio signal and is sent to the Audio Matching circuit; Described analog to digital converter converts digital audio and video signals to for the simulated audio signal that the Audio Matching circuit is imported into and is sent to the processor of mobile terminal;
The Audio Matching circuit, be sent to the audio input end of mobile terminal after being used for the simulated audio signal that described digital to analog converter is exported is mated, and be sent to described analog to digital converter after the simulated audio signal that the audio output of mobile terminal is exported is mated.
2. MOS tone testing device as claimed in claim 1, it is characterized in that, described proving installation further comprises the first selector switch, and an end is connected with described audio output, and the other end selects to connect the loudspeaker of described Audio Matching circuit or mobile terminal according to switch-over control signal.
3. MOS tone testing device as claimed in claim 1, it is characterized in that, described proving installation further comprises the second selector switch, and an end is connected with described audio input end, and the other end selects to connect the microphone of described Audio Matching circuit or mobile terminal according to switch-over control signal.
4. MOS tone testing device as claimed in claim 1, it is characterized in that, described proving installation further comprises the 3rd switch, is connected between described processor and described codec, is used for according to the switch-over control signal connection or disconnects described processor and codec.
5. MOS tone testing device as claimed in claim 1, is characterized in that,
Described codec is the general-purpose serial bus USB codec, comprises the usb protocol controller that is connected between described analog to digital converter, described digital to analog converter and described processor;
Described processor comprises USB interface, between described codec and described processor by being connected to the USB connection between described usb protocol controller and described USB interface.
6. MOS tone testing device as claimed in claim 1, is characterized in that, the processor of described mobile terminal comprises the testing evaluation module, is used for the sample audio file of processor transmission and the diaphone frequency file of reception are compared scoring.
7. the control method of a MOS tone testing device claimed in claim 1, is characterized in that, comprises
Control mobile terminal and enter tone playing state;
The processor of mobile terminal is sent to sample audio file the codec of MOS module;
Described codec carries out described sample audio file to obtain simulated audio signal also through being input to the audio input end of mobile terminal after the Audio Matching Circuit Matching after digital-to-analog conversion;
Mobile terminal sends the described simulated audio signal of described audio input end input to Correspondent Node;
Control mobile terminal and enter recording state;
The simulated audio signal that the received communication opposite end sends;
Export the simulated audio signal of described reception to described Audio Matching circuit by audio output, then through being sent to the analog to digital converter of described codec after described Audio Matching Circuit Matching;
Described analog to digital converter forms the simulated audio signal that receives audio file and is sent to processor after analog to digital conversion.
8. control method as claimed in claim 7, is characterized in that, described proving installation also comprises:
One end is connected with described audio output, the other end is selected the first selector switch of the loudspeaker of the described Audio Matching circuit of connection or mobile terminal according to switch-over control signal;
One end is connected with described audio input end, the other end is selected the second selector switch of the microphone of the described Audio Matching circuit of connection or mobile terminal according to switch-over control signal; And,
Be connected to the 3rd switch between described processor and described codec;
When not needing to carry out the MOS tone testing, mobile terminal sends the first switch-over control signal, according to described the first switch-over control signal: described the first selector switch selects to be communicated with described audio output and described loudspeaker, the second selector switch selects to be communicated with described audio input end and described microphone, the 3rd switch disconnects, and mobile terminal has call function;
When needs carry out the MOS tone testing, mobile terminal sends the second switch-over control signal, according to described the second switch-over control signal: described the first selector switch selects to be communicated with described audio output and described Audio Matching circuit, described the second selector switch selects to be communicated with described audio input end and described Audio Matching circuit, described the 3rd switch is closed, and mobile terminal has the tone testing function.
9. control method as claimed in claim 7, is characterized in that, the processor of described mobile terminal comprises the testing evaluation module;
Also comprise after at described analog to digital converter, the simulated audio signal that receives being formed audio file after analog to digital conversion and being sent to the step of processor of described mobile terminal:
The testing evaluation module of described processor compares scoring with the sample audio file of transmission and the diaphone frequency file of reception, obtains the step of tone testing result.
10. a MOS tone testing method, is characterized in that, comprising:
The first mobile terminal and the second mobile terminal enter talking state, and wherein said the first mobile terminal and the second mobile terminal are the described MOS tone testing of any one device in claim 1-6;
Control the first mobile terminal and enter tone playing state, the second mobile terminal enters recording state;
The processor output sample audio file of the first mobile terminal obtains the first simulated audio signal after the MOS resume module by described the first mobile terminal, is sent to described the second mobile terminal after the audio input end input by the first mobile terminal again;
Export the MOS resume module of the second mobile terminal after described the second described the first simulated audio signal of mobile terminal reception to by audio output, obtain outputing to after the first audio file the processor of the second mobile terminal, compare scoring with sample audio file in described the second mobile terminal processor;
Control the first mobile terminal and enter recording state, the second mobile terminal enters tone playing state;
The processor output sample audio file of the second mobile terminal obtains the second simulated audio signal after the MOS resume module by described the second mobile terminal, is sent to described the first mobile terminal after the audio input end input by the second mobile terminal again;
Export the MOS resume module of the first mobile terminal after described the first described the second simulated audio signal of mobile terminal reception to by audio output, obtain outputing to after the second audio file the processor of the first mobile terminal, compare scoring with sample audio file in described the first mobile terminal processor.
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