CN204216969U - A kind of voice-communication device of novel meeting stereo process - Google Patents
A kind of voice-communication device of novel meeting stereo process Download PDFInfo
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- CN204216969U CN204216969U CN201420615541.0U CN201420615541U CN204216969U CN 204216969 U CN204216969 U CN 204216969U CN 201420615541 U CN201420615541 U CN 201420615541U CN 204216969 U CN204216969 U CN 204216969U
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Abstract
The utility model discloses a kind of voice-communication device of novel meeting stereo process, comprise: LCD shows, master control MCU, interface circuit, mixed-media network modules mixed-media circuit, speech processes MCU, and at least more than one sound card is connected with described speech processes MCU, this sound card receives the phonetic entry of external voice equipment for gathering, speech processes MCU one end is connected with described master control MCU, the other end is connected with sound card, above-mentioned master control MCU carries out audio mixing by from the voice data of local voip conversation circuit input and the voice data of local microphone input, generate local terminal audio mixing data, speech processes MCU is used for the speech data received by sound card, master control MCU transmits the described local terminal audio mixing data come and carries out cumulative aliasing, to generate extended audio audio mixing data.The utility model scheme receives the voice data of multiple external voice equipment by arranging multiple sound card, and through the stereo process of conference call, finally realizes the call mode of multiple terminal meeting.
Description
Technical field
The utility model belongs to audio/video communication field, especially based on the extension process technology of voice-communication device carrying out Multi-Party Conference voice.
Background technology
Along with development and the maturation of audio frequency and video treatment technology, the video conference based on audio frequency and video treatment technology is arisen at the historic moment.On the other hand, conference telephone becomes the important component part of all enterprise institutions end product combination.Therefore, the multimedia conferencing of integrated senior IP application program and high resolution audio and video technology can improve Consumer's Experience, and finally brings active influence to business exchange.If but wish that VoIP phone also can dock with traditional communication apparatus, as communications on the unified platform such as mobile phone, APP software, computer software, conventional telecommunications phones, now need the server support of some more complicated, this can increase operation cost undoubtedly, and have a lot of destabilizing factor, call tone quality also cannot ensure.In addition, inner at VoIP equally, because each manufacturer server is relatively independent, use the user of different service cannot converse in a meeting.Therefore, in order to solve the problem, be necessary to provide a kind of simple meeting device sound mixing, facilitating dissimilar multiple terminals jointly to participate in same voice conferencing.
Summary of the invention
The purpose of this utility model is the voice-communication device providing a kind of novel meeting stereo process, gathers audio mixing mode achieve multipartite voice meeting by analogue audio frequency.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is, a kind of voice-communication device of novel meeting stereo process, comprise: LCD display, master control MCU, interface circuit, mixed-media network modules mixed-media circuit, speech processes MCU, and at least more than one sound card is connected with described speech processes MCU, described sound card receives the phonetic entry of external voice equipment for gathering, described speech processes MCU one end is connected with described master control MCU, and the other end is connected with described sound card.
Preferably, sound card end is also connected with filter circuit and power amplifier, wherein, described filter circuit be used for filtering outside input strong analog signal with current harmonics and DC component, described power amplifier for changing voice signal power, to ensure that signal is strong and weak within sound card tolerance interval.
Preferably, described master control MCU carries out audio mixing by from the voice data of local voip conversation circuit input and the voice data of local microphone input, generates local terminal audio mixing data, and is responsible for local audio output.
Preferably, described speech processes MCU primary responsibility realizes stereo process, transmits the described local terminal audio mixing data come carry out cumulative aliasing, to generate extended audio audio mixing data for the speech data received by described sound card, described master control MCU.
Preferably, described speech processes MCU is reserved USB interface also, is used for supporting that external USB sound card connects, expansion meeting path.
Preferably, described master control MCU is connected with bluetooth communication module circuit and/or mixed-media network modules mixed-media circuit, exports for the phonetic entry carrying out described local voip conversation circuit.
The voice-communication device of a kind of novel meeting stereo process of the present utility model, by arranging the voice of multiple physics sound card reception from dissimilar external voice equipment, and after audio mixing overlap-add procedure, achieve compatibility and the unification of dissimilar communicating terminal.This implementation is simple, flexibly, improve call tone quality to a certain extent, and the impact of server end in Multi-Party Conference mode process under well avoiding software realization mode.
Accompanying drawing explanation
Fig. 1 is the voice connection diagram of the utility model VoIP phone and external communication apparatus;
Fig. 2 is the hardware frame figure of the utility model VoIP phone;
Fig. 3 is speech processes MCU cut-away view in the utility model VoIP phone.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, clear, complete description is carried out to the technical scheme in the utility model embodiment.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.Based on the embodiment in the utility model, the every other embodiment that those skilled in the art obtains all belongs to the scope of the utility model protection.
The object of setting up multiple physics sound card at communication device end of the present utility model is in order to the voice data of external voice equipment is joined in local call meeting as the call that a road is common, because external communication apparatus be independent of the utility model communication device outside the communicating terminal of other types, such as, it can be smart mobile phone, VoIP phone, common phone, or the forms such as computer, if want that the phonetic entry received by above-mentioned all types of communicating terminal is on communication device of the present utility model, each road analog signal can be gathered by the described physics sound card set up, and carry out stereo process with the voice data after local microphone collection.Therefore, the utility model, by communication device, just can complete the adaptation again of the analog audio data to the input of Three-Part protocol equipment after such as VoIP phone increases multiple physics sound card.
Sound card also claims audio card or sonic-effect card, includes physics sound card and virtual sound card two type.Wherein, physics sound card is a kind of hardware realizing conversion mutually between sound wave and digital signal, is the element in multimedia equipment.The basic function of physics sound card changes from the original sound signal such as microphone, CD, then outputs in the sound equipment such as earphone, loud speaker, recorder.The basic function of physics sound card comprises: audio frequency synthesis function of pronunciation, sound mixing function and digital signal processing function, the input and output function of analoging sound signal, digital-to-analogue conversion, analog-to-digital conversion.Above-mentioned sound mixing function realizes primarily of the mixer in physics sound card, controls the size of sound source and audio signal.
Physics sound card mainly comprises following interface usually:
Linear input interface, it is labeled as " Line In ", for receiving the voice signal of input, usual external auxiliary source of sound, Source Music, video tape recorder etc., and the audio output port being generally connected to auxiliary source of sound.
Linear convergent rate interface, it is labeled as " Line Out ", and also known as Line Out interface, the voice signal being responsible for sound card to handle well outputs to active audio amplifier, earphone or other audio frequency multiplying arrangements.
Microphone input interface, it is labeled as " Mic In ", also known as Mic In interface, for receiving the sound of typing, as call voice signal.Microphone input interface is connected with microphone usually.
Speaker output interface, it is labeled as " Speaker " or " SPK ", also known as Speaker interface, for the grafting of the tone frequency channel wire plug of external speaker.
In specific embodiment of the utility model one, local communication device we carry out technical scheme explanation for VoIP phone, in fact we do not need to be concerned about that third party device is the communication apparatus of which kind of type.Fig. 1 is the voice connection diagram of the utility model VoIP phone and external communication apparatus.As known in the figure, local VoIP handset users A passes through other communication apparatus external, as: nonlocal user B, user C, user D are incorporated in same speech communication by phone, notebook, mobile phone respectively.Same speech communication herein can be that user A utilizes local VoIP phone multiparty teleconferencing function to initiate, and also can be common multipartite voice talking mode.In the utility model scheme, on VoIP phone, inside is provided with at least three physics sound cards, and by 3.5mm audio frequency export with this locality outside answer the call, external computerized speech, or local connecting with external mobile phone voice be connected.Wherein, with answer the call outside this locality that to be connected be directly receive handle interface end.Flexibly other three communicating terminals local can be expanded in the Multi-Party Conference of VoIP phone by this kind of scheme.
Fig. 2 is the hardware frame figure of the utility model VoIP phone.As shown in the figure, mainly comprise at VoIP phone end: sound card 1, sound card 2, sound card 3, speech processes MCU, master control MCU, control circuit, LCD display, interface circuit, bluetooth communication module circuit, other audio-frequency function modular circuits, mixed-media network modules mixed-media circuit, LCD display, and in each sound card of connection and external interface part, add one section of filter circuit and voice power amplifier.
Wherein, this filter circuit be used for the strong analog signal of filtering outside input with current harmonics and DC component, voice power amplifier object is, according to actual conditions, changes voice signal strong and weak, ensures that signal is strong and weak within sound card tolerance interval.
Speech processes MCU, except connecting multiple sound card, also reserved USB interface, is used for supporting that external USB sound card connects, expansion meeting path.Speech processes MCU is controlled by one-stage control circuit by master control MCU, and the MCU of master control simultaneously transmits local terminal voice data to speech processes MCU, carries out mixing operation by speech processes MCU.Described speech processes MCU is the main control chip selecting the above audio frequency input in a support 4 road, primary responsibility realizes stereo process, by the speech data received from each sound card, and carry out stereo process further from the local terminal audio mixing data that master control MCU transmission comes, generate extended audio audio mixing data.Internal support hardware noise is eliminated, and hardware echo cancellation performance, the functions such as gain control, for selecting additional function.
Fig. 3 is speech processes MCU cut-away view in the utility model VoIP phone.The structure of the inner concrete audio mixing mode of known speech processes MCU as shown in Figure 3.Sound card 1, sound card 2, sound card 3, and the external sound card of a road USB is connected on speech processes MCU.Above-mentioned four road sound cards input audio frequency through collect and transmit to speech processes MCU.In addition, in conjunction with the local terminal speech data passed over from master control MCU, namely above-mentioned local terminal audio mixing data, are carried out one-accumulate aliasing in speech processes MCU chip inside, and generation extended audio audio mixing data output to individual channel and get on.Before output, need to deduct this path and originally inputted data, ensure there is no echo.Final output size of data controls by the control circuit of master control MCU, data is multiplied by or divided by a coefficient, increases or reduce volume.
Master control MCU, many VoIP hardware circuits on main connection VoIP phone, comprising: LCD display, interface circuit, mixed-media network modules mixed-media circuit, bluetooth communication module circuit, and other audio-frequency function modules.Master control MCU is the core processing module of whole VoIP phone, in the utility model scheme, mainly carry out local stereo process to generate local terminal audio mixing data, be about to carry out audio mixing from the voice data of local voip conversation circuit input and the voice data of local microphone input.Wherein local voip conversation circuit input comprises: the voice data of bluetooth communication module circuits and networks modular circuit input, the input of local microphone audio frequency is mainly received by interface circuit.
Bluetooth communication module circuit, belongs to a part for VoIP phone, the phonetic entry of terminal equipment near being received by bluetooth communication pattern.
Mixed-media network modules mixed-media circuit, can receive the multichannel IP session voice from network terminal.
Other audio-frequency function modules, comprise EHS, RJ9, handle, hands-free, be responsible for the input and output of VoIP phone local voice, comprise handle, hand free device is by the connection of stereo process in master control MCU, also comprising of being connected with stereo process is described from bluetooth communication module circuit, the voice data of mixed-media network modules mixed-media circuit, give speech processes MCU again by data good for audio mixing and carry out secondary audio mixing, by data by sound card as shown in the figure, comprise USB peripheral hardware part and transmit each peripheral hardware connection device, by this audio mixing transmission several times, any participant side can effectively connect, accept to transmit voice, intercommunication interconnects, just really achieve accessible conferencing function in many ways.
Interface circuit, major function is responsible for the interface circuits such as VoIP phone dial key.
LCD shows, and shows under the control of master control MCU to the state of current each communication line, and for UI interface display in audio conference process or operating interactive order input.
In the utility model, audio frequency accesses terminal and is not limited to VoIP phone, and the voice-communication device be connected with its voice can comprise common phone, computer, smart mobile phone etc.The hardware interface part be connected with sound card, the utility model is not limited to and uses 3.5mm audio interface, can also RJ9 audio interface, usb mode with etc. some other audio interface, meet coupling connection between each equipment.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (9)
1. the voice-communication device of a novel meeting stereo process, comprise: LCD display, master control MCU, interface circuit, mixed-media network modules mixed-media circuit, it is characterized in that, described voice-communication device also comprises: speech processes MCU, and at least more than one sound card is connected with described speech processes MCU, described sound card receives the phonetic entry of external voice equipment for gathering, described speech processes MCU one end is connected with described master control MCU, and the other end is connected with described sound card.
2. voice-communication device according to claim 1, it is characterized in that, described sound card end is also connected with filter circuit and power amplifier, wherein, described filter circuit be used for filtering outside input strong analog signal with current harmonics and DC component, described power amplifier for changing voice signal power, to ensure that signal is strong and weak within sound card tolerance interval.
3. voice-communication device according to claim 2, is characterized in that, described master control MCU carries out audio mixing by from the voice data of local voip conversation circuit input and the voice data of local microphone input, generates local terminal audio mixing data.
4. voice-communication device according to claim 3, it is characterized in that, described speech processes MCU primary responsibility realizes stereo process, transmit the described local terminal audio mixing data come carry out cumulative aliasing, to generate extended audio audio mixing data for the speech data that described sound card is received, described master control MCU.
5. voice-communication device according to claim 4, is characterized in that, described speech processes MCU is reserved USB interface also, is used for supporting that external USB sound card connects, expansion meeting path.
6. voice-communication device according to claim 5, is characterized in that, the hardware interface be connected with described sound card can be: 3.5mm audio interface, RJ9 audio interface.
7. voice-communication device according to claim 6, is characterized in that, described master control MCU is connected with bluetooth communication module circuit and/or mixed-media network modules mixed-media circuit, exports for the phonetic entry carrying out described local voip conversation circuit.
8. voice-communication device according to claim 7, is characterized in that, described voice-communication device is VoIP phone.
9. voice-communication device according to claim 8, is characterized in that, comprises: common phone, computer, smart mobile phone with described external voice equipment.
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| CN201420615541.0U CN204216969U (en) | 2014-10-23 | 2014-10-23 | A kind of voice-communication device of novel meeting stereo process |
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| CN201420615541.0U CN204216969U (en) | 2014-10-23 | 2014-10-23 | A kind of voice-communication device of novel meeting stereo process |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057191A (en) * | 2016-05-19 | 2016-10-26 | 广州颐希颉信息科技有限公司 | Audio synthesis processing method and system |
| CN106601263A (en) * | 2016-12-01 | 2017-04-26 | 武汉斗鱼网络科技有限公司 | Method and system used for acquiring sound of sound card and microphone and audio mixing |
| CN111343349A (en) * | 2020-02-25 | 2020-06-26 | 厦门亿联网络技术股份有限公司 | USB telephone device supporting multi-equipment conference application and control method thereof |
| CN111447332A (en) * | 2020-02-19 | 2020-07-24 | 广州广哈通信股份有限公司 | Scheduling terminal mainboard and scheduling terminal |
| CN113572888A (en) * | 2021-06-17 | 2021-10-29 | 厦门亿联网络技术股份有限公司 | Multi-channel equipment working system |
| CN113573259A (en) * | 2021-06-17 | 2021-10-29 | 厦门亿联网络技术股份有限公司 | Dual-mode voice communication system |
-
2014
- 2014-10-23 CN CN201420615541.0U patent/CN204216969U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057191A (en) * | 2016-05-19 | 2016-10-26 | 广州颐希颉信息科技有限公司 | Audio synthesis processing method and system |
| CN106601263A (en) * | 2016-12-01 | 2017-04-26 | 武汉斗鱼网络科技有限公司 | Method and system used for acquiring sound of sound card and microphone and audio mixing |
| CN111447332A (en) * | 2020-02-19 | 2020-07-24 | 广州广哈通信股份有限公司 | Scheduling terminal mainboard and scheduling terminal |
| CN111343349A (en) * | 2020-02-25 | 2020-06-26 | 厦门亿联网络技术股份有限公司 | USB telephone device supporting multi-equipment conference application and control method thereof |
| EP3873072A1 (en) * | 2020-02-25 | 2021-09-01 | Yealink (Xiamen) Network Technology Co., Ltd. | Usb phone supporting multi-device conference application and control method thereof |
| US11641426B2 (en) | 2020-02-25 | 2023-05-02 | Yealink (Xiamen) Network Technology Co., Ltd. | USB phone supporting multi-device conference application and control method thereof |
| CN113572888A (en) * | 2021-06-17 | 2021-10-29 | 厦门亿联网络技术股份有限公司 | Multi-channel equipment working system |
| CN113573259A (en) * | 2021-06-17 | 2021-10-29 | 厦门亿联网络技术股份有限公司 | Dual-mode voice communication system |
| US20220407954A1 (en) * | 2021-06-17 | 2022-12-22 | Yealink (Xiamen) Network Technology Co., Ltd. | Multipath device working system |
| US11962714B2 (en) * | 2021-06-17 | 2024-04-16 | Yealink (Xiamen) Network Technology Co., Ltd. | Multipath device working system |
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