WO2016115863A1 - 一种数字麦克风 - Google Patents

一种数字麦克风 Download PDF

Info

Publication number
WO2016115863A1
WO2016115863A1 PCT/CN2015/085630 CN2015085630W WO2016115863A1 WO 2016115863 A1 WO2016115863 A1 WO 2016115863A1 CN 2015085630 W CN2015085630 W CN 2015085630W WO 2016115863 A1 WO2016115863 A1 WO 2016115863A1
Authority
WO
WIPO (PCT)
Prior art keywords
digital
microphone
digital microphone
dsp
analog
Prior art date
Application number
PCT/CN2015/085630
Other languages
English (en)
French (fr)
Inventor
杨伯辉
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2016115863A1 publication Critical patent/WO2016115863A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor

Definitions

  • the present invention relates to the field of video conference technologies, and in particular, to a digital microphone.
  • the video conference terminal function not only has audio and video transmission, but also can realize secondary video transmission through dual video streaming technology, such as H.239 and other related protocols.
  • the main video transmits the character image video
  • the auxiliary video transmission needs to share the content
  • some technologies can implement the multi-subsequent video transmission function.
  • many video conferencing terminals cannot perform encoding processing of multiple streams of main video, auxiliary video, audio, etc. at the same time due to insufficient processing capability of the video audio encoding chip.
  • the video conference terminal is generally connected with a digital microphone to collect audio information through a digital microphone.
  • connection manner between the video conference terminal and the digital microphone is generally a wired connection mode. Since the audio interfaces of different types of conference terminals are different, the digital microphone cannot be applied to all conference terminals, and the conference terminal is A limited number of interfaces also limits the number of digital microphones connected.
  • the present invention provides an audio and video processing method, apparatus and system to solve at least the above problems.
  • a digital microphone comprising: a microphone, an analog to digital converter, a digital signal processor (DSP), the microphone being connected to the analog to digital converter, the modulus Passing multiple channels between the converter and the DSP
  • the multichannel Buffered Serial Port (McBSP) is connected, and the digital microphone is further provided with a wireless connection module connected to the DSP.
  • the wireless connection module a wireless access point (AP) debugging interface, and a Wi-Fi Protected Setup (WPS) unit. .
  • AP wireless access point
  • WPS Wi-Fi Protected Setup
  • the digital microphone is further configured with: a VGA (Video Graphics Array) interface or an HDMI (High Definition Multimedia Interface) interface; a video encoder, the video encoder input end and The VGA or the HDMI is connected, and the video encoder output is connected to the DSP through a McBSP.
  • VGA Video Graphics Array
  • HDMI High Definition Multimedia Interface
  • the digital microphone is further provided with: a secondary operational amplifier, the secondary operational amplifier input is connected to the microphone, and the secondary operational amplifier output is connected to the analog to digital converter.
  • the number of microphones is set to at least four.
  • the number of the second operational amplifiers is set to at least two, wherein one of the two operational amplifiers is connected to at least two of the microphones.
  • the VGA is connected to the video encoder through a retractable cable, or the HDMI is connected to the video encoder through a retractable cable.
  • the microphone is connected to the analog-to-digital converter, and the analog-to-digital converter is connected to the DSP through a multi-channel buffer serial port McBSP, and the wireless connection module is connected to the DSP.
  • the digital microphone can wirelessly transmit the collected audio or video information to the conference terminal, which greatly reduces the limited type of the conference terminal and the number of connected digital microphones.
  • FIG. 1 is a first schematic diagram of a digital microphone according to an embodiment of the present invention.
  • FIG. 2 is a second structural diagram of a digital microphone according to an embodiment of the present invention.
  • FIG. 3 is a third structural diagram of a digital microphone in accordance with an embodiment of the present invention.
  • FIG. 1 is a structural diagram of a digital microphone according to an embodiment of the present invention.
  • the digital microphone includes: a microphone 11, an analog-to-digital converter 15, and a digital signal processor.
  • the DSP 17 has a microphone 11 connected to the analog-to-digital converter 15.
  • the analog-to-digital converter 15 and the DSP 17 are connected by a multi-channel buffer serial port McBSP.
  • the digital microphone is further provided with:
  • the wireless connection module 19 is connected to the DSP 17.
  • the wireless connection module 19 can establish a wireless pairing connection with the video conference terminal and perform communication, and transmit the audio information processed by the DSP 17 to the video conference terminal, and the video conference terminal can forward the audio information to the far.
  • the conference terminal can establish a wireless pairing connection with the video conference terminal and perform communication, and transmit the audio information processed by the DSP 17 to the video conference terminal, and the video conference terminal can forward the audio information to the far.
  • the conference terminal can establish a wireless pairing connection with the video conference terminal and perform communication, and transmit the audio information processed by the DSP 17 to the video conference terminal, and the video conference terminal can forward the audio information to the far.
  • the conference terminal can establish a wireless pairing connection with the video conference terminal and perform communication, and transmit the audio information processed by the DSP 17 to the video conference terminal, and the video conference terminal can forward the audio information to the far.
  • the microphone 11 is connected to the analog-to-digital converter 15, and the analog-to-digital converter 15 and the DSP 17 are connected through a multi-channel buffer serial port McBSP, and the wireless connection module 19 is connected to the DSP 17.
  • the digital microphone can wirelessly transmit the collected audio or video information to the conference terminal, which greatly reduces the limited type of the conference terminal and the number of connected digital microphones.
  • FIG. 2 is a schematic diagram of a digital microphone structure according to an embodiment of the present invention.
  • an AP debugging interface 101 may be disposed in the wireless connection module 19, and the AP debugging interface 101 may be adopted.
  • Configure the AP parameters of the video conference terminal such as the SSID (Service Set Identifier) and password.
  • the video conference terminal can detect the specified video conference terminal and establish a pairing connection.
  • a WPS unit 103 may be disposed in the wireless connection module 19, and the video conference terminal can automatically configure the SSI D and the wireless encryption key of the terminal through the WPS unit 103, and Establish a paired connection.
  • the above automatic configuration process has two methods. First, a PIN (Pin Input Configuration) code for identifying a digital microphone is input on an AP (Wireless Access Point) of the video conference terminal; second, by digital The button on the microphone triggers the connection process with the AP of the video conference terminal. The AP of the video conference terminal detects that a digital microphone is prompted by the AP user interface after the request is established. The user also confirms the button on the AP. The AP of the video conferencing terminal and the digital microphone can automatically complete the binding.
  • PIN Packe Input Configuration
  • the digital microphone includes four microphones 11, two two-stage operational amplifiers 13, wherein each two microphones 11 pass through a two-stage operational amplifier 13 and analog to digital conversion The device 15 is connected.
  • FIG. 3 is a schematic diagram of a digital microphone structure according to an embodiment of the present invention.
  • the digital microphone may be provided with a VGA interface 21 or an HDMI interface 23 and a video encoder 25.
  • the code stream input end of the video encoder 25 is connected to the VGA interface 21 or the HDMI interface 23, and the output end thereof is connected to the multi-channel buffer serial port DSP 17 through the McBSP.
  • the digital microphone obtains the video information through the VGA interface 21 or the HDMI interface 23, and then is encoded by the video encoder 25, and is wirelessly transmitted to the video conference terminal through the DSP 17.
  • the video conference terminal can perform no processing, and the video information is forwarded to the video conference terminal.
  • Remote video conferencing terminal is a schematic diagram of a digital microphone structure according to an embodiment of the present invention.
  • the digital microphone may be provided with a VGA interface 21 or an HDMI interface 23 and a video encoder 25.
  • the code stream input end of the video encoder 25 is connected to the VGA interface 21 or the HDMI interface 23, and
  • the VGA interface 21 or the HDMI interface 23 is coupled to the video encoder 25 via a retractable cable.
  • the digital microphone can be connected to the video conference terminal in a star-type manner and wirelessly communicated, and does not need to be connected to the video conference terminal in a cascading manner in a wired connection, and the mixing of the plurality of digital microphones is uniformly processed by the video conference terminal. .
  • the present invention relates to the field of video conferencing technology, and provides a digital microphone, including: a microphone, an analog to digital converter, a digital signal processor DSP, the microphone is connected to the analog to digital converter, and the analog to digital converter and the The DSPs are connected by a multi-channel buffer serial port McBSP, and the digital microphone is further provided with a wireless connection module connected to the DSP.
  • the digital microphone can wirelessly transmit the collected audio or video information to the conference terminal, which greatly reduces the limited range of the conference terminal type and the number of connected digital microphones.

Abstract

本发明提供了一种数字麦克风，包括：话筒、模数转换器、数字信号处理器DSP，所述话筒与所述模数转换器连接，所述模数转换器与所述DSP之间通过多通道缓冲串行口McBSP相连接，所述数字麦克风还设置有：无线连接模块，与所述DSP相连接。通过本发明，使得数字麦克风可以通过无线方式将采集的音频或视频信息发送给会议终端，大大减小了会议终端类型以及所连接数字麦克风数量的受限范围。

Description

一种数字麦克风 技术领域
本发明涉及视频会议技术领域，尤其涉及一种数字麦克风。
背景技术
在相关技术中，视频会议终端功能不仅有音频、视频的传输，还可以通过双视频流传输技术，例如H.239等相关协议实现辅视频的传输。相关技术中，主视频传送人物图像视频，辅视频传送需要共享的内容，还有一些技术能够实现多辅视频传输功能。
在相关技术中，很多视频会议终端由于本身视频音频编码芯片的处理能力不足，无法同时进行主视频、辅视频、音频等多路码流的编码处理。例如在手机上使用的软会议电视终端，在进行视频会议时，手机通常能提供一路主视频和一路音频给远端，无法提供第2路视频及音频给远端。因此，视频会议终端一般会连接有数字麦克风，通过数字麦克风采集音频信息。
在相关技术中，视频会议终端与数字麦克风的之间的连接方式一般为有线连接方式，由于不同类型会议终端的音频接口等都不相同，数字麦克风不能适用于所有的会议终端，而且由于会议终端接口数量有限也会限制连接数字麦克风的数量。
发明内容
为了解决相关技术中视频会议终端连接数字麦克风数量有限以及数字麦克风不能适用于不同类型会议终端的技术问题，本发明提供了一种音视频处理方法、装置及系统，以至少解决上述问题。
根据本发明，提供了一种数字麦克风，包括：话筒、模数转换器、数字信号处理器(Digital Signal Processor，简称为DSP)，所述话筒与所述模数转换器连接，所述模数转换器与所述DSP之间通过多通道缓 冲串行口(Multichannel Buffered Serial Port，简称为McBSP)相连接，所述数字麦克风还设置有：无线连接模块，与所述DSP相连接。
可选地，所述无线连接模块内还设置有以下至少之一：无线访问接入点(Wireless Access Point，简称为AP)调试接口、无线保护设置(Wi-Fi Protected Setup，简称为WPS)单元。
可选地，所述数字麦克风还设置有：VGA(Video Graphics Array，视频图形阵列)接口或HDMI(High Definition Multimedia Interface，高清晰度多媒体)接口；视频编码器，所述视频编码器输入端与所述VGA或所述HDMI相连接，所述视频编码器输出端通过McBSP与所述DSP相连接。
可选地，所述数字麦克风内还设置有：二级运算放大器，所述二级运算放大器输入端与所述话筒相连，所述二级运算放大器输出端与所述模数转换器相连。
可选地，所述话筒数量设置为至少4个。
可选地，所述二级运算放大器数量设置为至少2个，其中，一个所述二级运算放大器与至少2个所述话筒相连接。
可选地，所述VGA通过可伸缩线缆与所述视频编码器相连接，或者，所述HDMI通过可伸缩线缆与所述视频编码器相连接。
通过本发明，话筒与模数转换器连接，该模数转换器与DSP之间通过多通道缓冲串行口McBSP相连接，无线连接模块与该DSP相连接。使得数字麦克风可以通过无线方式将采集的音频或视频信息发送给会议终端，大大减小了会议终端类型以及所连接数字麦克风数量的受限范围。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是根据本发明实施例的数字麦克风结构图一；
图2是根据本发明实施例的数字麦克风结构图二；
图3是根据本发明实施例的数字麦克风结构图三。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
本发明实施例提供了一种数字麦克风，图1是根据本发明实施例的数字麦克风结构图一，如图1所示，该数字麦克风包括：话筒11、模数转换器15、数字信号处理器DSP17，话筒11与模数转换器15连接，模数转换器15与DSP17之间通过多通道缓冲串行口McBSP相连接，所述数字麦克风还设置有：
无线连接模块19，与DSP17相连接。
其中，该无线连接模块19可以与视频会议终端建立无线配对连接并进行通讯，将DSP17处理后的音频信息传送到视频会议终端，该视频会议终端可以不做任何处理，即将该音频信息转发给远端的会议终端。
通过本发明实施例，话筒11与模数转换器15连接，该模数转换器15与DSP17之间通过多通道缓冲串行口McBSP相连接，无线连接模块19与该DSP17相连接。使得数字麦克风可以通过无线方式将采集的音频或视频信息发送给会议终端，大大减小了会议终端类型以及所连接数字麦克风数量的受限范围。
图2是根据本发明实施例的数字麦克风结构图二，在本发明的一个实施方式中，如图2所示，无线连接模块19内可以设置有AP调试接口101，可以通过该AP调试接口101配置视频会议终端的AP参数，比如SSID(Service Set Identifier，服务集标识)、密码等，视频会议终端就可以检测到指定的视频会议终端并建立配对连接。
在本发明的一个实施方式中，如图2所示，无线连接模块19内可以设置有WPS单元103，视频会议终端通过该WPS单元103可以自动配置该终端的SSI D及无线加密密钥，并建立配对连接。上述自动配置过程有两种方法，其一，在视频会议终端的AP(Wireless Access Point，无线访问接入点)上输入用于识别数字麦克风的PIN(Pin Input Configuration)码；其二，通过数字麦克风上的按键触发与视频会议终端的AP之间建立连接流程，视频会议终端的AP检测到有数字麦克风在请求建链后，通过AP用户接口进行提示，用户在AP上也通过按键进行确认后，视频会议终端的AP与数字麦克风就能自动完成绑定。
在本发明的一个实施方式中，如图2所示，该数字麦克风包含四个话筒11、两个二级运算放大器13，其中，每两个话筒11通过一个二级运算放大器13与模数转换器15相连。
图3是根据本发明实施例的数字麦克风结构图三，在本发明的一个实施方式中，如图3所示，该数字麦克风可以设置有VGA接口21或HDMI接口23及视频编码器25，该视频编码器25的码流输入端与VGA接口21或HDMI接口23相连，其输出端通过McBSP与多通道缓冲串行口DSP17相连接。数字麦克风通过VGA接口21或HDMI接口23获取视频信息后由视频编码器25进行编码，通过DSP17以无线方式发送给视频会议终端，通过该视频会议终端可以不做任何处理，即将该视频信息转发给远端的视频会议终端。
在本发明的一个实施方式中，VGA接口21或HDMI接口23通过可伸缩线缆与视频编码器25相连接。其中，数字麦克风可以星型方式与视频会议终端相连接并进行无线通信，而不需要以有线连接中的级联方式与视频会议终端连接，该多个数字麦克风的混音由视频会议终端统一处理。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在 本发明的保护范围之内。
工业实用性
本发明涉及视频会议技术领域，提供了一种数字麦克风，包括：话筒、模数转换器、数字信号处理器DSP，所述话筒与所述模数转换器连接，所述模数转换器与所述DSP之间通过多通道缓冲串行口McBSP相连接，所述数字麦克风还设置有：无线连接模块，与所述DSP相连接。通过本发明，使得数字麦克风可以通过无线方式将采集的音频或视频信息发送给会议终端，大大减小了会议终端类型以及所连接数字麦克风数量的受限范围。

Claims (7)

  1. 一种数字麦克风，包括：
    话筒、模数转换器、数字信号处理器DSP，所述话筒与所述模数转换器连接，所述模数转换器与所述DSP之间通过多通道缓冲串行口McBSP相连接，所述数字麦克风还设置有：
    无线连接模块，所述无线连接模块与所述DSP相连接。
  2. 根据权利要求1所述的数字麦克风，其中，所述无线连接模块内还设置有以下至少之一：
    无线访问接入点AP调试接口；
    无线保护设置WPS单元。
  3. 根据权利要求1所述的数字麦克风，其中，所述数字麦克风还设置有：
    视频图形阵列接口VGA或高清晰度多媒体接口HDMI；
    视频编码器，所述视频编码器输入端与所述VGA或所述HDMI相连接，所述视频编码器输出端通过McBSP与所述DSP相连接。
  4. 根据权利要求1至3任一项所述的数字麦克风，其中，所述数字麦克风内还设置有：
    二级运算放大器，所述二级运算放大器输入端与所述话筒相连，所述二级运算放大器输出端与所述模数转换器相连。
  5. 根据权利要求4所述的数字麦克风，其中，所述话筒数量设置为至少4个。
  6. 根据权利要求5所述的数字麦克风，其中，所述二级运算放大器数量设置为至少2个，其中，一个所述二级运算放大器与至少2个所述话筒相连接。
  7. 根据权利要求3所述的数字麦克风，其中，所述VGA通过可伸缩线 缆与所述视频编码器相连接，或者，所述HDMI通过可伸缩线缆与所述视频编码器相连接。
PCT/CN2015/085630 2015-01-22 2015-07-30 一种数字麦克风 WO2016115863A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201520045792.4 2015-01-22
CN201520045792.4U CN204377088U (zh) 2015-01-22 2015-01-22 一种数字麦克风

Publications (1)

Publication Number Publication Date
WO2016115863A1 true WO2016115863A1 (zh) 2016-07-28

Family

ID=53333263

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/085630 WO2016115863A1 (zh) 2015-01-22 2015-07-30 一种数字麦克风

Country Status (2)

Country Link
CN (1) CN204377088U (zh)
WO (1) WO2016115863A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106789133A (zh) * 2017-01-19 2017-05-31 广州市花都区国光音频科技中心（普通合伙） 一种新型的数字会议系统
CN113411719A (zh) * 2021-06-17 2021-09-17 杭州海康威视数字技术股份有限公司 一种麦克风级联系统、麦克风及终端

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204377088U (zh) * 2015-01-22 2015-06-03 中兴通讯股份有限公司 一种数字麦克风
CN110519550B (zh) * 2019-08-21 2021-06-11 合肥虚实文化发展股份有限公司 一种具有话筒连结结构的会议系统
CN112822429A (zh) * 2019-11-18 2021-05-18 中兴通讯股份有限公司 麦克风的无线接入方法、装置、电子设备以及存储介质

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2907145Y (zh) * 2006-04-04 2007-05-30 中国科学院声学研究所 一种多信道无线麦克风系统
CN101047408A (zh) * 2006-03-31 2007-10-03 中国科学院声学研究所 一种数字化无线麦克风系统
CN101753383A (zh) * 2008-12-02 2010-06-23 中兴通讯股份有限公司 一种分布式麦克系统
KR20110010870A (ko) * 2009-07-27 2011-02-08 최준수 회의용 무선 마이크 시스템
CN204377088U (zh) * 2015-01-22 2015-06-03 中兴通讯股份有限公司 一种数字麦克风

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101047408A (zh) * 2006-03-31 2007-10-03 中国科学院声学研究所 一种数字化无线麦克风系统
CN2907145Y (zh) * 2006-04-04 2007-05-30 中国科学院声学研究所 一种多信道无线麦克风系统
CN101753383A (zh) * 2008-12-02 2010-06-23 中兴通讯股份有限公司 一种分布式麦克系统
KR20110010870A (ko) * 2009-07-27 2011-02-08 최준수 회의용 무선 마이크 시스템
CN204377088U (zh) * 2015-01-22 2015-06-03 中兴通讯股份有限公司 一种数字麦克风

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106789133A (zh) * 2017-01-19 2017-05-31 广州市花都区国光音频科技中心（普通合伙） 一种新型的数字会议系统
CN113411719A (zh) * 2021-06-17 2021-09-17 杭州海康威视数字技术股份有限公司 一种麦克风级联系统、麦克风及终端

Also Published As

Publication number Publication date
CN204377088U (zh) 2015-06-03

Similar Documents

Publication Publication Date Title
WO2016115863A1 (zh) 一种数字麦克风
US20100189286A1 (en) Audio conference system
WO2013102046A1 (en) Making calls using an additional terminal
US20120269359A1 (en) Media distribution system
CN101262558B (zh) 传递影像信号的方法与系统
WO2018077105A1 (zh) 一种双流会议装置及方法
CN102510468B (zh) 一种激活摄像机预置位的方法及视频会议终端系统
CN106601262A (zh) 一种高清蓝牙音频收发终端及通信系统
US11095982B2 (en) Speaker apparatus, electronic apparatus connected therewith, and controlling method thereof
US20160219418A1 (en) Hybrid terminal capable of avoiding signals originated by own terminal
US10469667B2 (en) Conferencing system including a remote microphone and method of using the same
JP6984457B2 (ja) 通信システム、通信装置、通信制御プログラム、中継装置、中継プログラム
CN103888182A (zh) 一种无线音频设备及基于其的有线音频中继方法
WO2016045233A1 (zh) 一种可采集声场信息的通信装置及通信方法
US20150373060A1 (en) Using Smart TV Capabilities to Enhance Audio/Video Call
CN102480672A (zh) 音效处理装置、多音源音效应用系统以及方法
CN101924968A (zh) 一种音频转换器
US9398620B1 (en) Simultaneous voice and audio traffic between two devices on a wireless personal-area network
US20180317056A1 (en) Ptt communication method and apparatus through multiple ptt channels
WO2016082538A1 (zh) 一种音视频处理方法、装置及系统
JP3221050U (ja) 多機能即時音声翻訳装置
US9872158B2 (en) Voice protocol connector apparatus
JP2016510534A (ja) Ｍｐｅｇ２−ｔｓ互換データストリームを無線で送信するための送信装置
CN204795592U (zh) 助听器通讯系统
JP3204519U (ja) 補聴器の通信システム

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15878534

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15878534

Country of ref document: EP

Kind code of ref document: A1