CN109147822B - System and method for VOLTE voice recording and voice quality evaluation - Google Patents
System and method for VOLTE voice recording and voice quality evaluation Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000013441 quality evaluation Methods 0.000 title claims abstract description 14
- 239000012792 core layer Substances 0.000 claims abstract description 69
- 239000010410 layer Substances 0.000 claims abstract description 65
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 238000001303 quality assessment method Methods 0.000 claims description 16
- 238000004891 communication Methods 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000007405 data analysis Methods 0.000 abstract 1
- 239000013256 coordination polymer Substances 0.000 description 6
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
- G10L25/51—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination
- G10L25/60—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination for measuring the quality of voice signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/2236—Quality of speech transmission monitoring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/42221—Conversation recording systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention relates to a system for VOLTE voice recording and voice quality evaluation, which comprises an application layer subsystem, a voice-to-audio data transmission subsystem and a voice-to-audio data analysis subsystem, wherein the application layer subsystem is used for transmitting voice-to-audio data and calculating data; the core layer subsystem is used for managing voice audio data; the application layer subsystem comprises an APP (application) module for evaluating the voice quality; and the audio file management module is used for carrying out AMR data transmission with the core layer subsystem. The invention also relates to a method for realizing VOLTE voice recording and voice quality evaluation control based on the system. By adopting the system and the method, the interference of the environment on the audio caused by the traditional Mic port recording mode is avoided; the audio data directly records the audio by opening an internal voice channel, and audio encoding and decoding of the AP subsystem are not needed, so that the influence on the audio possibly caused by the audio is avoided; the audio in the traditional mode needs to be encoded and decoded through the AMR format, and the standards of the AMR format have hundreds, so that the implementation is complex.
Description
Technical Field
The invention relates to the field of audio processing, in particular to the technical field of voice quality assessment and recording, and specifically relates to a system and a method for VOLTE voice recording and voice quality assessment.
Background
The traditional VOLTE voice evaluation test method is that a VOLTE call is established between two mobile phones, then a standard audio file is played at one end, the audio file is received at the other end and recorded through a Mic port, after the call is ended, the recorded audio is compared with the standard audio by a receiving end, and then the voice quality is evaluated.
The recording at the receiving end is carried out through the MIC interface of the mobile phone, the audio recorded by the recording mode is subjected to audio coding and decoding, and is easily interfered by the surrounding environment, the audio quality can be influenced, and the evaluation result of the voice quality is further influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a system and a method for VOLTE voice recording and voice quality assessment, wherein the system directly records through an internal audio channel, avoids the interference of external environment factors on audio, and prevents audio signals from being lost.
In order to achieve the above object, the system for VOLTE voice recording and voice quality assessment and the method thereof of the present invention are as follows:
the VOLTE voice recording and voice quality evaluation system is mainly characterized by comprising:
the application layer subsystem is used for transmitting voice audio data and calculating and analyzing the data;
the core layer subsystem is connected with the application layer subsystem and is used for managing voice audio data.
Preferably, the application layer subsystem includes:
the APP module is connected with the core layer subsystem and is used for evaluating the voice quality;
and the audio file management module is connected with the core layer subsystem and is used for carrying out AMR data transmission with the core layer subsystem.
Preferably, the core layer subsystem includes:
the voice management module is connected with the application layer subsystem and is used for transmitting AMR data;
the system TCP/IP service layer is connected with the voice management module and is used for converting data between IP data and AMR data;
and the physical layer is connected with the system TCP/IP service layer and is used for packaging AMR data into IP data.
Preferably, the system is based on LC1860 chip platform.
The VOLTE voice recording and voice quality evaluation method is mainly characterized by comprising the following steps of:
(1) The application layer subsystem and the core layer subsystem establish VOLTE communication;
(2) The application layer subsystem reads local standard voice audio data and sends the data to the core layer subsystem, and the core layer subsystem carries out AMR coding on the data and sends the data to the opposite terminal on an air interface;
(3) The core layer subsystem receives data and reports the data to the application layer subsystem through AMR decoding, and the application layer subsystem reads the data and locally stores the data as an audio file;
(4) The application layer subsystem calculates and analyzes the audio file through the APP module and displays the voice quality score.
Preferably, the application layer subsystem in the step (2) sends data to the core layer subsystem, specifically including the following steps:
the application layer subsystem opens a channel, empties a Buffer of the core layer subsystem, and inquires a Buffer state of the core layer subsystem;
(2.2) filling Buffer by the core layer subsystem, judging whether filling is finished, if yes, continuing the step (2.3); otherwise, continuing to fill the Buffer;
(2.3) the application layer subsystem sending PCM data to the core layer subsystem;
(2.4) inquiring the Buffer state of the core layer subsystem and filling the Buffer, judging whether the application layer subsystem finishes transmitting data, if so, informing the core layer subsystem that the transmission is finished, and emptying the Buffer of the core layer subsystem; otherwise, continuing to step (2.3).
Preferably, the core layer subsystem in the step (3) receives data, and specifically includes the following steps:
the core layer subsystem of (3.1) opens a channel;
(3.2) the core layer subsystem receiving data transmitted by the application layer subsystem;
(3.3) the core layer subsystem exits transmission.
By adopting the system and the method for VOLTE voice recording and voice quality evaluation, the interference of the environment on the audio caused by the traditional Mic port recording mode is avoided; the audio data directly records the audio by opening an internal voice channel, and audio encoding and decoding of the AP subsystem are not needed, so that the influence on the audio possibly caused by the audio is avoided; the audio in the traditional mode needs to be encoded and decoded through the AMR format, and the standards of the AMR format have hundreds, so that the implementation is complex. The PCM format adopted by the data directly recorded in the interior is only two standards, and the encoding and decoding formats are simple and easy to realize.
Drawings
Fig. 1 is a schematic diagram of a prior art VOLTE speech evaluation test method.
Fig. 2 is a general architecture diagram of a system for VOLTE voice recording and voice quality assessment according to the present invention.
Fig. 3 is a specific flowchart of transmitting data from an AP end to a CP end in the method for voice recording and voice quality assessment of VOLTE according to the present invention.
Fig. 4 is a specific flow chart of a CP-end receiving data of the method for voice recording and voice quality assessment of VOLTE according to the present invention.
Detailed Description
In order to more clearly describe the technical contents of the present invention, a further description will be made below in connection with specific embodiments.
The invention provides a novel VOLTE voice quality assessment recording technology, audio data is directly recorded through an internal audio channel instead of a mobile phone Mic port, so that the interference of external environment factors on audio is avoided, audio signals are not lost, and the accuracy of voice quality assessment is further improved.
The VOLTE voice recording and voice quality evaluation system of the invention comprises:
the application layer subsystem is used for transmitting voice audio data and calculating and analyzing the data;
the core layer subsystem is connected with the application layer subsystem and is used for managing voice audio data.
Preferably, the application layer subsystem includes:
the APP module is connected with the core layer subsystem and is used for evaluating the voice quality;
and the audio file management module is connected with the core layer subsystem and is used for carrying out AMR data transmission with the core layer subsystem.
Preferably, the core layer subsystem includes:
the voice management module is connected with the application layer subsystem and is used for transmitting AMR data;
the system TCP/IP service layer is connected with the voice management module and is used for converting data between IP data and AMR data;
and the physical layer is connected with the system TCP/IP service layer and is used for packaging AMR data into IP data.
Preferably, the system is based on LC1860 chip platform.
In a specific embodiment of the present invention, the method for voice recording and voice quality assessment of VOLTE includes the following steps:
(1) The application layer subsystem establishes VOLTE communication with the core layer subsystem;
(2) The application layer subsystem reads the local standard voice audio data and sends the local standard voice audio data to the core layer subsystem, and the core layer subsystem carries out AMR coding on the data and sends the data to the opposite terminal on an air interface;
(2.1) opening a channel by the application layer subsystem, emptying a Buffer of the core layer subsystem, and inquiring the Buffer state of the core layer subsystem;
(2.2) filling Buffer by the core layer subsystem, judging whether filling is finished, if yes, continuing the step (2.3); otherwise, continuing to fill the Buffer;
(2.3) the application layer subsystem transmitting PCM data to the core layer subsystem;
(2.4) inquiring the Buffer state of the core layer subsystem and filling the Buffer, judging whether the application layer subsystem finishes transmitting data, if so, informing the core layer subsystem that the transmission is finished, and emptying the Buffer of the core layer subsystem; otherwise, continuing to step (2.3).
(3) The core layer subsystem receives the data and reports the data to the application layer subsystem through AMR decoding, and the application layer subsystem reads the data and locally stores the data as an audio file;
(3.1) the core layer subsystem opens a channel;
(3.2) the core layer subsystem receives the data sent by the application layer subsystem;
(3.3) the core layer subsystem exits the transmission.
(4) And the application layer subsystem calculates and analyzes the audio file through the APP module and displays the voice quality score.
In the specific implementation mode of the invention, the AP subsystem is an application layer subsystem, the CP subsystem is a core layer subsystem, the AP application is a voice quality evaluation application program, the specific Manager is a voice management subsystem, and the TCP/IP is a system TCP/IP service layer.
Based on LC1860 intelligent mobile phone basic software, the system defines a new data interaction flow between the AP subsystem and the CP subsystem, realizes the transmission and storage of AMR data, and adds a voice evaluation application program to the AP subsystem to realize voice quality evaluation.
And (3) uplink data transmission flow: the AP side reads the standard audio file at a specific sampling rate and sends the standard audio file to the CP side, and the special Manager transmits AMR data sent from the AP side to the TCP/IP layer, encapsulates the AMR data into IP data and sends the IP data to the opposite end through the Volte link through the bottom layer.
And (3) downlink data transmission flow: IP data received from an air interface via a Volte link is converted into AMR data through a TCP/IP layer, and the special Manager transmits the AMR data to an AP side and stores the AMR data as an audio file.
The specific implementation method in the specific implementation mode of the invention comprises the following steps:
(1) Based on LC1860 chip platform.
(2) And establishing the VOLTE call between the two systems through the App application.
(3) The transmitting end AP subsystem reads the local standard voice audio data and transmits the local standard voice audio data to the CP subsystem, and the local standard voice audio data is transmitted on an air interface after AMR coding.
(4) The receiving end CP subsystem receives the data and reports the data to the AP subsystem through AMR decoding, and the AP subsystem reads and locally stores the data as an audio file.
(5) And analyzing the audio file through the APP, and calculating and displaying the voice quality score.
By adopting the system and the method for VOLTE voice recording and voice quality evaluation, the interference of the environment on the audio caused by the traditional Mic port recording mode is avoided; the audio data directly records the audio by opening an internal voice channel, and audio encoding and decoding of the AP subsystem are not needed, so that the influence on the audio possibly caused by the audio is avoided; the audio in the traditional mode needs to be encoded and decoded through the AMR format, and the standards of the AMR format have hundreds, so that the implementation is complex. The PCM format adopted by the data directly recorded in the interior is only two standards, and the encoding and decoding formats are simple and easy to realize.
In this specification, the invention has been described with reference to specific embodiments thereof. It will be apparent, however, that various modifications and changes may be made without departing from the spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.
Claims (7)
1. A system for VOLTE voice recording and voice quality assessment, said system comprising:
the application layer subsystem is used for transmitting voice audio data and calculating and analyzing the data;
the core layer subsystem is connected with the application layer subsystem and is used for managing voice audio data;
the system realizes VOLTE voice recording and voice quality evaluation control, and specifically comprises the following steps:
(1) The application layer subsystem and the core layer subsystem establish VOLTE communication;
(2) The application layer subsystem reads the local standard voice audio data and sends the local standard voice audio data to the core layer subsystem, and the core layer subsystem carries out AMR coding on the data and sends the data to the opposite terminal on an air interface;
(3) The core layer subsystem receives data and reports the data to the application layer subsystem through AMR decoding, and the application layer subsystem reads the data and locally stores the data as an audio file;
(4) The application layer subsystem calculates and analyzes the audio file through the APP module and displays the voice quality score.
2. The system for VOLTE voice recording and voice quality assessment according to claim 1, wherein said application layer subsystem comprises:
the APP module is connected with the core layer subsystem and is used for evaluating the voice quality;
and the audio file management module is connected with the core layer subsystem and is used for carrying out AMR data transmission with the core layer subsystem.
3. The system for VOLTE voice recording and voice quality assessment according to claim 1, wherein said core layer subsystem comprises:
the voice management module is connected with the application layer subsystem and is used for transmitting AMR data;
the system TCP/IP service layer is connected with the voice management module and is used for converting data between IP data and AMR data;
and the physical layer is connected with the system TCP/IP service layer and is used for packaging AMR data into IP data.
4. The system for VOLTE voice recording and voice quality assessment according to claim 1, wherein the system is based on LC1860 chip platform.
5. A method for implementing VOLTE voice recording and voice quality assessment control based on a system for VOLTE voice recording and voice quality assessment, the system comprising:
the application layer subsystem is used for transmitting voice audio data and calculating and analyzing the data;
the core layer subsystem is connected with the application layer subsystem and is used for managing voice audio data;
the method is characterized by comprising the following steps:
(1) The application layer subsystem and the core layer subsystem establish VOLTE communication;
(2) The application layer subsystem reads the local standard voice audio data and sends the local standard voice audio data to the core layer subsystem, and the core layer subsystem carries out AMR coding on the data and sends the data to the opposite terminal on an air interface;
(3) The core layer subsystem receives data and reports the data to the application layer subsystem through AMR decoding, and the application layer subsystem reads the data and locally stores the data as an audio file;
(4) The application layer subsystem calculates and analyzes the audio file through the APP module and displays the voice quality score.
6. The method for implementing VOLTE voice recording and voice quality evaluation control according to claim 5, wherein the application layer subsystem in step (2) sends data to the core layer subsystem, specifically comprising the steps of:
(2.1) opening a channel by the application layer subsystem, emptying a Buffer of the core layer subsystem, and inquiring a Buffer state of the core layer subsystem;
(2.2) filling Buffer by the core layer subsystem, judging whether filling is finished, if yes, continuing the step (2.3); otherwise, continuing to fill the Buffer;
(2.3) the application layer subsystem sending PCM data to the core layer subsystem;
(2.4) inquiring the Buffer state of the core layer subsystem and filling the Buffer, judging whether the application layer subsystem finishes transmitting data, if so, informing the core layer subsystem that the transmission is finished, and emptying the Buffer of the core layer subsystem; otherwise, continuing to step (2.3).
7. The method for implementing VOLTE voice recording and voice quality evaluation control according to claim 5, wherein the core layer subsystem in step (3) receives data, specifically comprising the steps of:
the core layer subsystem of (3.1) opens a channel;
(3.2) the core layer subsystem receiving data transmitted by the application layer subsystem;
(3.3) the core layer subsystem exits transmission.
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