CN103166837A - Media gateway and method for improving voice quality of conference telephone - Google Patents
Media gateway and method for improving voice quality of conference telephone Download PDFInfo
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Abstract
The invention discloses a media gateway and a method for improving voice quality of a conference telephone. The media gateway comprises a coding and decoding conversion module, a voice mixing module and a voice quality improving module additionally arranged between the coding and decoding conversion module and the voice mixing module. The voice quality improving module is used for receiving voice signals output by the coding and decoding conversion module, carrying out power adjustment processing on the voice signals and sending processed voice signals to the voice mixing module; and/or, the voice quality improving module is used for receiving voice mixing signals output by the voice mixing module, carrying out power adjustment processing on the voice mixing signals and sending processed voice mixing signals to the coding and decoding conversion module. By means of the media gateway and the method for improving the voice quality of the conference telephone, the voice quality of the conference telephone is further improved, and hardware resources do not need to be additionally arranged on the media gateway.
Description
Technical Field
The invention relates to the field of communication, in particular to a media gateway and a method for improving the voice quality of a conference call.
Background
With the development of Next Generation Networks (NGN), a conference service is required to be performed in the NGN. In a multi-party conference telephone system, a plurality of participants located at different geographical locations can be simultaneously communicated by voice. And special mixing equipment is arranged in the NGN for the conference service to complete the mixing processing of the conference telephone voice. However, because the input signals of each conference telephone terminal are different, the input signals of a plurality of conference telephones are processed by the sound mixing equipment, so that overlarge voice signals can appear, and participants can hear noise; or the voice signal is too small, and the participants can not hear clearly.
In the prior art, methods for improving the voice quality of a conference call are proposed, and most of the methods for improving the voice quality are implemented by a mixing device, which can improve the voice quality of the conference call to a certain extent, as shown in fig. 1, a conventional media gateway device mainly includes the following functional modules:
a Time Division Multiplexing (TDM) access module: and the data exchange function between a Public Switched Telephone Network (PSTN) and the interior of the media gateway is completed.
A packet receiving and transmitting module: and finishing the transceiving function of the media packet between the external IP network and the inside of the media gateway.
The coding and decoding conversion module: and finishing the function of converting time slot data and IP data of PSTN side Pulse Code Modulation (PCM for short).
The sound mixing module: and completing the sound mixing function of each input voice of the conference telephone.
Wherein:
the conference user A: representing a remote user in a conference call service; the remote user realizes the connection with the media gateway through a packet receiving and transmitting module of the media gateway;
and the conference user B: representing a near-end user in a conference call service; the near-end user realizes the connection with the media gateway through the TDM access module of the media gateway.
As shown in fig. 2, a conventional method for improving the voice quality of a conference call by a media gateway device includes the following steps:
s101: a conference call is established between a far-end conference user A and a near-end conference user B;
s102: the voice input signal of the far-end conference user A is sent to a receiving and transmitting packet module of a media gateway through an external IP network, and is forwarded to a coding and decoding conversion module through the receiving and transmitting packet module, the voice signal of the near-end conference user B is forwarded to the coding and decoding conversion module through a TDM access module, and the coding and decoding conversion module unpacks and decodes the input signal into a PCM signal;
s103: sending the PCM signal to a sound mixing module for sound mixing processing;
s104: after the audio mixing process is finished, the audio mixing module sends the audio mixing signal back to the coding and decoding conversion module, and the coding and decoding conversion module codes and packages the audio mixing signal and sends the audio mixing signal to a conference user;
the remote conference user A is sent to the IP network through the packet receiving and sending module;
and for the near-end conference user B, sending the near-end conference user B to the user side through the TDM access module.
However, there are still some problems in the voice transmitted to each conference phone terminal after being processed by the mixing device, for example, when the power of the signal is too large, the voice may be introduced into the mixing device after being processed, and this problem is related to the mixing algorithm, and the mixing device cannot avoid the problem.
In addition, a method for implementing voice quality control added to a conference telephone terminal is also proposed in the prior art, however, since there are many terminal devices under the NGN, the voice quality situation of each terminal may be different, if the terminal device under each NGN needs to consider the problem of voice quality control independently, that is, each time one terminal user is added, the terminal device needs to consider the problem of voice quality control, and needs to have a corresponding control method. Thus, the cost of the terminal device increases. This is not always acceptable to the user, and not all terminal devices support such voice control functionality.
Therefore, in view of the above problems in the prior art, there is an urgent need to provide an improved method for improving the voice quality of a conference call by a media gateway, so as to overcome some problems of the voice transmitted to each conference call terminal after being processed by a mixing device.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a media gateway and a method for improving the voice quality of a conference call, so as to further improve the voice quality of the conference call without additionally adding hardware resources to the media gateway.
In order to solve the above technical problem, the present invention provides a media gateway, which comprises an encoding/decoding conversion module, a sound mixing module, and a voice quality improvement module added between the encoding/decoding conversion module and the sound mixing module;
the voice quality improvement module is configured to: receiving the voice signal output by the coding and decoding conversion module, performing power adjustment processing on the voice signal, and sending the processed voice signal to the sound mixing module; and/or, receiving the audio mixing signal output by the audio mixing module, performing power adjustment processing on the audio mixing signal, and sending the processed audio mixing signal to the coding and decoding conversion module.
Further, the media gateway also comprises a data configuration module;
the data configuration module is used for: configuring a voice quality improvement function for turning on or off the voice quality improvement module;
the voice quality improvement module is further configured to: before performing the power adjustment processing on the voice signal or the audio mixing signal, judging whether the data configuration module starts a voice quality improvement function of the voice quality improvement module, and if so, performing the power adjustment processing; otherwise, directly forwarding the voice signal or the mixed sound signal.
Further, the data configuration module is further configured to: presetting a conference telephone voice signal quality threshold parameter;
the voice quality improvement module performs power adjustment processing on the voice signal or the audio mixing signal, and the power adjustment processing includes:
the voice quality improvement module detects the power value of the voice signal or the sound mixing signal, compares the power value with the voice signal quality threshold parameter of the conference telephone, and judges whether the power of the voice signal or the sound mixing signal needs to be adjusted according to the comparison result.
Further, the conference call voice signal quality threshold parameter comprises a power upper limit value, or a power upper limit value and a power lower limit value;
the comparing of the voice quality improvement module with the conference call voice signal quality threshold parameter, and the judging whether the power of the voice signal or the audio mixing signal needs to be adjusted according to the comparison result include:
if the power of the voice signal or the audio mixing signal is larger than the upper limit value of the power, the voice quality improving module weakens the voice signal or the audio mixing signal according to the power;
or,
if the power of the voice signal or the audio mixing signal is larger than the upper limit value of the power, the voice quality improving module weakens the voice signal or the audio mixing signal according to the power;
and if the power of the voice signal or the sound mixing signal is smaller than the lower power limit value, the voice quality improvement module amplifies the voice signal or the sound mixing signal.
Further, the data configuration module presets the same or different voice signal quality threshold parameters for the voice signal and the audio mixing signal.
In order to solve the above technical problem, the present invention further provides a method for improving the voice quality of a conference call, including:
after the telephone conference is established, the media gateway performs power adjustment processing on the decoded voice signal, then enters audio mixing processing to obtain an audio mixing signal, and the audio mixing signal is coded and then is sent to a telephone conference user;
or, the media gateway performs power adjustment processing on the decoded voice signal, then enters audio mixing processing to obtain an audio mixing signal, performs power adjustment processing on the audio mixing signal, encodes the processed audio mixing signal and then sends the encoded audio mixing signal to the teleconference user;
or, the media gateway decodes and mixes the voice signal to obtain a mixed voice signal, performs power adjustment processing on the mixed voice signal, and encodes and transmits the processed mixed voice signal to the teleconference user.
Further, the method further comprises: configuring a voice quality improvement function for opening or closing the media gateway;
before performing the power adjustment processing on the voice signal or the audio mixing signal, judging whether the media gateway starts a voice quality improvement function of the voice quality improvement module, and if so, performing the power adjustment processing; otherwise, the voice signal is directly subjected to sound mixing processing, or the sound mixing signal is directly coded.
Further, the method further comprises: presetting a conference telephone voice signal quality threshold parameter;
the media gateway performing power adjustment processing on the voice signal or the audio mixing signal includes:
and the media gateway detects the power value of the voice signal or the sound mixing signal, compares the power value with the quality threshold parameter of the voice signal of the conference telephone, and judges whether the power of the voice signal or the sound mixing signal needs to be adjusted according to the comparison result.
Further, the conference call voice signal quality threshold parameter comprises a power upper limit value, or a power upper limit value and a power lower limit value;
the media gateway performing power adjustment processing on the voice signal or the audio mixing signal includes:
if the power of the voice signal or the audio mixing signal is larger than the upper limit value of the power, the media gateway weakens the voice signal or the audio mixing signal;
or,
if the power of the voice signal or the audio mixing signal is larger than the upper limit value of the power, the media gateway weakens the voice signal or the audio mixing signal;
and if the power of the voice signal or the audio mixing signal is smaller than the lower power limit value, the media gateway amplifies the voice signal or the audio mixing signal.
Further, the quality threshold parameters of the conference call voice signal preset for the voice signal and the audio mixing signal are the same or different.
Compared with the prior art, the media gateway and the method for improving the voice quality of the conference telephone provided by the invention can overcome the defect that the voice sent to each conference telephone terminal after being processed by the audio mixing equipment in the prior art has some problems, further improve the voice quality of the conference telephone, and do not need to additionally increase hardware resources by the media gateway.
Drawings
Fig. 1 is a diagram of a conventional media gateway device;
fig. 2 is a flow chart of a method for improving the voice quality of a conference call by a conventional media gateway device;
fig. 3 is a diagram of a media gateway for improving the voice quality of a conference call in an embodiment;
FIG. 4 is a flowchart illustrating a method for improving the voice quality of a conference call according to an embodiment;
FIG. 5 is a flow chart of a method for improving the voice quality of a conference call by a media gateway in an application example;
FIG. 6 is a flow chart of a power adjustment process performed by the voice quality improvement module on a voice signal in an exemplary application;
fig. 7 is a flowchart of a method for improving the voice quality of a conference call by a media gateway in another application example;
fig. 8 is a flowchart of a method for improving the voice quality of a conference call by a media gateway in another application example.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
Example (b):
as shown in fig. 3, the present embodiment provides a media gateway for improving the voice quality of a conference call, which includes a codec conversion module, a mixing module, and a voice quality improvement module added between the codec conversion module and the mixing module, wherein,
the voice quality improvement module is configured to: receiving the voice signal output by the coding and decoding conversion module, performing power adjustment processing on the voice signal, and sending the processed voice signal to the sound mixing module; and/or, receiving the audio mixing signal output by the audio mixing module, performing power adjustment processing on the audio mixing signal, and sending the processed audio mixing signal to the coding and decoding conversion module.
In this embodiment, the voice quality improvement module may be an independent module or device, and is formed by a voice processing chip, where the voice processing chip has a voice power adjustment function, and the voice quality improvement module may be integrated into the codec conversion module, and may perform voice quality improvement processing on a conference call voice signal and a mixed sound signal by using the voice chip.
In addition, the conference call voice quality improvement function is turned on, which may increase the consumption of gateway resources, and the function is recommended to be turned off for gateways without conference call service or with normal conference call voice quality. Therefore, the media gateway in this embodiment further includes a data configuration module connected to the voice quality improvement module, and can flexibly configure a voice quality improvement function of turning on or off the voice quality improvement module according to an actual application situation;
the voice quality improvement module is further configured to: before performing the power adjustment processing on the voice signal or the audio mixing signal, judging whether the data configuration module starts a voice quality improvement function of the voice quality improvement module, and if so, performing the power adjustment processing; otherwise, the voice signal is directly subjected to sound mixing processing, or the sound mixing signal is directly coded.
In addition, in practical application, the requirements of the conference call voice quality are different for different application scenarios, and the situations of the voice adjustment are correspondingly different, and the data configuration module is further configured to: presetting a conference telephone voice signal quality threshold parameter; preferably, the data configuration module may be configured to set a preset power adjustment range for the speech signal output by the codec conversion module and the preset power adjustment range for the speech signal output by the mixing module to be the same or different.
The voice quality improvement module performs power adjustment processing on the voice signal or the audio mixing signal, and the power adjustment processing includes:
the voice quality improvement module detects the power value of the voice signal or the audio mixing signal, compares the power value with the voice signal quality threshold parameter of the conference telephone, and judges whether the power of the voice signal or the audio mixing signal needs to be adjusted according to the comparison result.
The conference call voice signal quality threshold parameter comprises a power upper limit value, or a power upper limit value and a power lower limit value;
the comparing of the voice quality improving module with the quality threshold parameter of the voice signal of the conference call, and the judging whether the power of the voice signal or the audio mixing signal needs to be adjusted according to the comparing result comprises:
if the power of the voice signal or the audio mixing signal is larger than the upper limit value of the power, the voice quality improving module weakens the voice signal or the audio mixing signal according to the power;
or,
if the power of the voice signal or the audio mixing signal is larger than the upper limit value of the power, the voice quality improving module weakens the voice signal or the audio mixing signal;
and if the power of the voice signal or the mixed sound signal is smaller than the lower power limit value, the voice quality improvement module amplifies the voice signal or the mixed sound signal.
Wherein the attenuated or amplified adjustment range can be locally configured by the speech quality improvement module itself. Or directly attenuated or amplified to the upper and lower power limits.
As shown in fig. 4, with the above media gateway, this embodiment further provides a method for improving the voice quality of a conference call, which includes the following steps:
s201: a user establishes a teleconference;
s202: the media gateway performs power adjustment processing on the decoded voice signal, and then enters audio mixing processing to obtain an audio mixing signal;
in this step, or the media gateway may also directly send the decoded voice signal to the audio mixing module for audio mixing processing without performing power adjustment processing on the voice signal, so as to obtain an audio mixing signal;
s203: carrying out power adjustment processing on the voice signal after the audio mixing is finished;
after step S202 is executed, step S204 may be directly executed without skipping step S203.
S204: and coding the voice signal after the step S202 or S203 and then sending the coded voice signal to the teleconference user.
In the above steps S202 and S203, a voice quality improvement function of the media gateway may also be configured to be turned on or off, before the power adjustment processing is performed on the voice signal or the audio mixing signal, it is determined whether the media gateway turns on the voice quality improvement function of the voice quality improvement module, and if the media gateway turns on the voice quality improvement function, the power adjustment processing is performed; otherwise, the voice signal is directly subjected to sound mixing processing, or the sound mixing signal is directly coded.
Wherein, a conference telephone voice signal quality threshold parameter is preset; as a preferred mode, the preset quality threshold parameters of the conference call voice signal for the voice signal and the audio mixing signal may be the same or different, and the performing, by the media gateway, the power adjustment processing on the voice signal or the audio mixing signal includes:
and the media gateway detects the power value of the voice signal or the sound mixing signal, compares the power value with the quality threshold parameter of the voice signal of the conference telephone, and judges whether the power of the voice signal or the sound mixing signal needs to be adjusted according to the comparison result.
As a preferred mode, the conference call voice signal quality threshold parameter includes a power upper limit value, or a power upper limit value and a power lower limit value;
the media gateway performing power adjustment processing on the voice signal or the audio mixing signal includes:
if the power of the voice signal or the audio mixing signal is larger than the upper limit value of the power, the media gateway weakens the voice signal or the audio mixing signal;
or,
if the power of the voice signal or the audio mixing signal is larger than the upper limit value of the power, the media gateway weakens the voice signal or the audio mixing signal;
and if the power of the voice signal or the audio mixing signal is smaller than the lower power limit value, the media gateway amplifies the voice signal or the audio mixing signal.
In an application example, a media gateway shown in fig. 3 in this embodiment is adopted, where:
the conference user A: representing a remote user in a conference call service; the remote user realizes the connection with the media gateway through the packet receiving and sending module;
conference user B, conference user C: representing a near-end user in a conference call service; the near-end user realizes the connection with the media gateway through the TDM access module.
As shown in fig. 5, a specific process of improving the voice quality of the conference call by the media gateway in this embodiment is described, which includes the following steps:
s301: conference users A, B and C establish a conference call;
in practical applications, more users may participate in the conference at the same time.
S302: the voice input signal of the far-end conference user A is forwarded to the coding and decoding conversion module through the receiving and transmitting packet module of the media gateway, the voice signals of the near-end conference users B and C are forwarded to the coding and decoding conversion module through the TDM access module of the media gateway, and the coding and decoding conversion module unpacks and decodes the input signal into a PCM signal and sends the PCM signal to the voice quality improvement module;
s303: the voice quality improving module carries out power adjustment processing on the PCM signal;
in the application example, the voice quality improvement function of opening the media gateway is configured in advance, and a conference call voice signal quality threshold parameter is set; the process of performing the power adjustment processing on the voice signal by the voice quality improving module is shown in fig. 6, and includes the following steps:
s401: judging whether the media gateway starts a voice quality improvement function of the voice quality improvement module, if so, executing a step S402; otherwise, directly entering the sound mixing process;
s402: detecting the power value of the voice signal or the mixed sound signal, comparing the power value with the quality threshold parameter of the conference telephone voice signal, and executing a step S403 if the power value is greater than the upper power limit value; otherwise, executing step S404;
s403: attenuating the voice signal;
s404: and amplifying the voice signal.
After the power adjustment processing is executed, the following operations are executed:
s304: sending the adjusted voice signal to a sound mixing module for sound mixing processing;
s305: and sending the mixed sound signal after the sound mixing to a coding and decoding conversion module, coding and sending to the conference users A, B and C.
As shown in fig. 7, in another application example, a specific process of improving the voice quality of a conference call by a media gateway in the present embodiment is described, which includes the following steps:
s501: conference users A, B and C establish a conference call;
s502: the voice input signal of the far-end conference user A is forwarded to the coding and decoding conversion module through the receiving and transmitting packet module of the media gateway, the voice signals of the near-end conference users B and C are forwarded to the coding and decoding conversion module through the TDM access module of the media gateway, and the coding and decoding conversion module unpacks and decodes the input signal into a PCM signal and sends the PCM signal to the sound mixing module;
s503: the sound mixing module carries out sound mixing processing on the PCM signal;
s504: sending the sound mixing signal after completing the sound mixing to a voice quality improving module;
s505: the voice quality improving module carries out power adjustment processing on the audio mixing signal;
the process of performing the power adjustment processing on the audio mixing signal by the voice quality improvement module is the same as that of performing the power adjustment processing on the PCM signal in fig. 6, except that in step S401, it is determined whether the media gateway turns on the voice quality improvement function of the voice quality improvement module, and if not, the audio mixing signal is directly sent to the codec conversion module to enter the encoding processing.
S506: sending the adjusted audio mixing signal to the coding and decoding conversion module, coding and sending to conference users A, B and C;
in the two application examples, the power of the voice signal before the audio mixing process is completed and the power of the audio mixing signal after the audio mixing process is completed are respectively adjusted, and the noise generated after the processing of the audio mixing device is filtered, so that the quality of the voice transmitted to each conference telephone terminal is improved.
As shown in fig. 8, in another application example, a specific process of improving the voice quality of a conference call by a media gateway in the present embodiment is described, which includes the following steps:
s601 to S604 are the same as the above steps S301 to S304;
s605: sending the mixed sound signal after the sound mixing is finished to a voice quality improving module, and carrying out power adjustment processing on the mixed sound signal by the voice quality improving module;
the process of performing the power adjustment processing on the audio mixing signal by the voice quality improvement module is the same as that of performing the power adjustment processing on the PCM signal in fig. 6, except that in step S401, it is determined whether the media gateway turns on the voice quality improvement function of the voice quality improvement module, and if not, the audio mixing signal is directly sent to the codec conversion module to enter the encoding processing.
S606: and sending the adjusted audio mixing signal to the coding and decoding conversion module, coding the audio mixing signal and sending the coded audio mixing signal to conference users A, B and C.
The encoding and decoding conversion module encodes and packages each output signal and sends the encoded and packaged output signal to a conference user;
the remote conference user A is sent to the IP network through the packet receiving and sending module;
and for the near-end conference users B and C, sending the near-end conference users B and C to the user side through the TDM access module.
In the above application example, the power adjustment processing is performed on the voice signal output by the codec conversion module, and the power adjustment processing is performed on the audio mixing signal output by the audio mixing module, so that the dual power adjustment further improves the improvement of the voice quality of the conference call, so that a conference user can enjoy a better voice session without additionally adding hardware resources to the media gateway.
It can be seen from the foregoing embodiments that, compared with the prior art, the media gateway and the method for improving the voice quality of a conference call provided in the foregoing embodiments are based on the structure of the existing media gateway, where a voice quality improving module is added between the codec conversion module and the audio mixing module, and the voice quality improving module performs power adjustment processing on the voice signal of the conference call output by the codec conversion module and/or the audio mixing signal after audio mixing is completed by the audio mixing module, so as to overcome the drawback that, after processing by the audio mixing device in the prior art, there are some problems in the voice sent to each conference call terminal, further improve the voice quality of the conference call, and do not require additional hardware resources to be added by the media gateway.
It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing the relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module/unit in the above embodiments may be implemented in the form of hardware, and may also be implemented in the form of a software functional module. The present invention is not limited to any specific form of combination of hardware and software.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Various other embodiments may be devised in accordance with the teachings of the present invention without departing from the spirit and scope thereof, and it should be understood that various changes and modifications may be effected therein by those skilled in the art without departing from the spirit and scope of the invention.
Claims (10)
1. A media gateway comprises a coding/decoding conversion module and a sound mixing module, and is characterized in that a voice quality improvement module is added between the coding/decoding conversion module and the sound mixing module;
the voice quality improvement module is configured to: receiving the voice signal output by the coding and decoding conversion module, performing power adjustment processing on the voice signal, and sending the processed voice signal to the sound mixing module; and/or, receiving the audio mixing signal output by the audio mixing module, performing power adjustment processing on the audio mixing signal, and sending the processed audio mixing signal to the coding and decoding conversion module.
2. The media gateway of claim 1,
the media gateway also comprises a data configuration module;
the data configuration module is used for: configuring a voice quality improvement function for turning on or off the voice quality improvement module;
the voice quality improvement module is further configured to: before performing the power adjustment processing on the voice signal or the audio mixing signal, judging whether the data configuration module starts a voice quality improvement function of the voice quality improvement module, and if so, performing the power adjustment processing; otherwise, directly forwarding the voice signal or the mixed sound signal.
3. The media gateway of claim 2,
the data configuration module is further configured to: presetting a conference telephone voice signal quality threshold parameter;
the voice quality improvement module performs power adjustment processing on the voice signal or the audio mixing signal, and the power adjustment processing includes:
the voice quality improvement module detects the power value of the voice signal or the sound mixing signal, compares the power value with the voice signal quality threshold parameter of the conference telephone, and judges whether the power of the voice signal or the sound mixing signal needs to be adjusted according to the comparison result.
4. The media gateway of claim 3,
the conference call voice signal quality threshold parameter comprises a power upper limit value, or a power upper limit value and a power lower limit value;
the comparing of the voice quality improvement module with the conference call voice signal quality threshold parameter, and the judging whether the power of the voice signal or the audio mixing signal needs to be adjusted according to the comparison result include:
if the power of the voice signal or the audio mixing signal is larger than the upper limit value of the power, the voice quality improving module weakens the voice signal or the audio mixing signal according to the power;
or,
if the power of the voice signal or the audio mixing signal is larger than the upper limit value of the power, the voice quality improving module weakens the voice signal or the audio mixing signal according to the power;
and if the power of the voice signal or the sound mixing signal is smaller than the lower power limit value, the voice quality improvement module amplifies the voice signal or the sound mixing signal.
5. A media gateway according to claim 3 or 4,
the data configuration module presets the same or different voice signal quality threshold parameters for the voice signal and the sound mixing signal.
6. A method of improving conference call voice quality, comprising:
after the telephone conference is established, the media gateway performs power adjustment processing on the decoded voice signal, then enters audio mixing processing to obtain an audio mixing signal, and the audio mixing signal is coded and then is sent to a telephone conference user;
or, the media gateway performs power adjustment processing on the decoded voice signal, then enters audio mixing processing to obtain an audio mixing signal, performs power adjustment processing on the audio mixing signal, encodes the processed audio mixing signal and then sends the encoded audio mixing signal to the teleconference user;
or, the media gateway decodes and mixes the voice signal to obtain a mixed voice signal, performs power adjustment processing on the mixed voice signal, and encodes and transmits the processed mixed voice signal to the teleconference user.
7. The method of claim 6,
the method further comprises the following steps: configuring a voice quality improvement function for opening or closing the media gateway;
before performing the power adjustment processing on the voice signal or the audio mixing signal, judging whether the media gateway starts a voice quality improvement function of the voice quality improvement module, and if so, performing the power adjustment processing; otherwise, the voice signal is directly subjected to sound mixing processing, or the sound mixing signal is directly coded.
8. The method of claim 6,
the method further comprises the following steps: presetting a conference telephone voice signal quality threshold parameter;
the media gateway performing power adjustment processing on the voice signal or the audio mixing signal includes:
and the media gateway detects the power value of the voice signal or the sound mixing signal, compares the power value with the quality threshold parameter of the voice signal of the conference telephone, and judges whether the power of the voice signal or the sound mixing signal needs to be adjusted according to the comparison result.
9. The method of claim 8,
the conference call voice signal quality threshold parameter comprises a power upper limit value, or a power upper limit value and a power lower limit value;
the media gateway performing power adjustment processing on the voice signal or the audio mixing signal includes:
if the power of the voice signal or the audio mixing signal is larger than the upper limit value of the power, the media gateway weakens the voice signal or the audio mixing signal;
or,
if the power of the voice signal or the audio mixing signal is larger than the upper limit value of the power, the media gateway weakens the voice signal or the audio mixing signal;
and if the power of the voice signal or the audio mixing signal is smaller than the lower power limit value, the media gateway amplifies the voice signal or the audio mixing signal.
10. The method of claim 8,
and the preset quality threshold parameters of the conference telephone voice signals for the voice signals and the audio mixing signals are the same or different.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109217899A (en) * | 2017-07-06 | 2019-01-15 | 成都鼎桥通信技术有限公司 | A kind of speech loudness method of adjustment and device |
| WO2020034853A1 (en) * | 2018-08-14 | 2020-02-20 | 西安中兴新软件有限责任公司 | Voice signal processing method and device, and storage medium |
| CN112356774A (en) * | 2020-09-24 | 2021-02-12 | 湖北亿咖通科技有限公司 | Vehicle-mounted entertainment system for sounding warning sound and function diagnosis method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101166317A (en) * | 2006-10-17 | 2008-04-23 | 智多微电子（上海）有限公司 | A method and corresponding device for providing mobile equipment with sound mixing function |
| CN101267222A (en) * | 2007-03-13 | 2008-09-17 | 智多微电子（上海）有限公司 | Device for controlling multi-channel sound signal volume adjustment in mobile device sound mixing device |
-
2011
- 2011-12-13 CN CN2011104141861A patent/CN103166837A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101166317A (en) * | 2006-10-17 | 2008-04-23 | 智多微电子（上海）有限公司 | A method and corresponding device for providing mobile equipment with sound mixing function |
| CN101267222A (en) * | 2007-03-13 | 2008-09-17 | 智多微电子（上海）有限公司 | Device for controlling multi-channel sound signal volume adjustment in mobile device sound mixing device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109217899A (en) * | 2017-07-06 | 2019-01-15 | 成都鼎桥通信技术有限公司 | A kind of speech loudness method of adjustment and device |
| WO2020034853A1 (en) * | 2018-08-14 | 2020-02-20 | 西安中兴新软件有限责任公司 | Voice signal processing method and device, and storage medium |
| CN110830643A (en) * | 2018-08-14 | 2020-02-21 | 西安中兴新软件有限责任公司 | Voice signal processing method and device and storage medium |
| CN110830643B (en) * | 2018-08-14 | 2021-11-16 | 西安中兴新软件有限责任公司 | Voice signal processing method and device and storage medium |
| CN112356774A (en) * | 2020-09-24 | 2021-02-12 | 湖北亿咖通科技有限公司 | Vehicle-mounted entertainment system for sounding warning sound and function diagnosis method thereof |
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Application publication date: 20130619 |