WO2020233162A1 - 一种多机无线同步分轨录音机、系统及方法 - Google Patents

一种多机无线同步分轨录音机、系统及方法 Download PDF

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Publication number
WO2020233162A1
WO2020233162A1 PCT/CN2020/072908 CN2020072908W WO2020233162A1 WO 2020233162 A1 WO2020233162 A1 WO 2020233162A1 CN 2020072908 W CN2020072908 W CN 2020072908W WO 2020233162 A1 WO2020233162 A1 WO 2020233162A1
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module
recording
track
recorder
bluetooth
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PCT/CN2020/072908
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English (en)
French (fr)
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赵易天
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新中音私人有限公司
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Publication of WO2020233162A1 publication Critical patent/WO2020233162A1/zh
Priority to US17/534,054 priority Critical patent/US11936715B2/en

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B31/00—Arrangements for the associated working of recording or reproducing apparatus with related apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B31/00—Arrangements for the associated working of recording or reproducing apparatus with related apparatus
    • G11B31/003—Arrangements for the associated working of recording or reproducing apparatus with related apparatus with radio receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/72409—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
    • H04M1/72412—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories using two-way short-range wireless interfaces
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/15—Aspects of sound capture and related signal processing for recording or reproduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication

Definitions

  • the present invention relates to the field of recording equipment, in particular to a multi-machine wireless synchronous track dividing recorder, a multi-machine wireless synchronous track dividing recording system and a multi-machine wireless synchronous track dividing recording method.
  • the present invention provides a multi-machine wireless synchronization track splitting using wireless network technology.
  • the recorder is small in size. It uses Bluetooth and WiFi technology to form a wireless mesh network and is connected to a cloud server set up on the Internet. Through a recorder or mobile phone App, multiple recorders in the wireless mesh network can be remotely controlled at the same time.
  • Synchronize the track recording of time information first record the audio on the internal memory of the machine, then transfer the track recording file on the internal memory to the cloud server in real time, and finally on the cloud server according to the synchronization time in the track recording file Information is automatically synthesized into multi-track recording engineering files to meet the needs of highly flexible live multi-track recording and file sharing.
  • a multi-machine wireless synchronization track recorder including a power supply module, an audio input module, an A/D conversion module, an SoC core module (including Bluetooth and WiFi communication modules), and audio Through module, key module, LED indicator module, digital storage module.
  • the power module supplies power to the audio input module and controls the operation of the SoC core module.
  • the SoC core module controls the A/D conversion module, the button module, and the LED indicator module.
  • the SoC core module is bidirectional with the digital storage module and the internal Bluetooth and WiFi communication modules. communication.
  • the power module in the recorder is powered by a battery or USB power source.
  • the Bluetooth communication module in the SoC core module in the recorder is connected with the Bluetooth communication module in other recorders of the same model and the Bluetooth of the mobile phone to form a Bluetooth mesh network.
  • the WiFi communication module in the SoC core module in the recorder is connected to a dedicated cloud server set on the Internet.
  • the audio input module in the recorder is connected to an external microphone or line audio input, and includes a Canon/big three-core hybrid jack, a small three-core jack, and a lotus jack.
  • the amplifier and power supply circuit inside the audio input module it can receive stage wired microphone, wireless microphone, video microphone, shotgun microphone, lavalier microphone, balanced and unbalanced line audio signals, suitable for concert live recording and video shooting auxiliary recording .
  • the A/D conversion module in the recorder converts the analog audio signal into a digital audio format, which is compatible with various sampling rates from 16 bits/44.1 kHz to 24 bits/192 kHz.
  • SoC core module in the recorder records the digital audio signal into an audio file and stores it on the digital storage module.
  • the audio in the recorder directly transmits the audio input signal with the highest fidelity to the external mixing console connected to it through the module.
  • the internal digital storage module in the recorder adopts SD card or digital flash memory or hard disk.
  • the present invention provides a multi-machine wireless synchronization track recording system, including the above-mentioned multiple multi-machine wireless synchronization track recorders, a cloud server and a mobile phone, and Bluetooth communication in the multi-machine wireless synchronization track recorder
  • the module is connected with the Bluetooth communication module in other multi-machine wireless synchronization track recorders and the Bluetooth Bluetooth of the mobile phone to form a Bluetooth mesh network, and the WIFI communication modules in the multiple multi-machine wireless synchronization track recorders are connected to the cloud server .
  • the present invention provides a multi-machine wireless synchronization track recording method, which adopts the above-mentioned multi-machine wireless synchronization track recording system, and includes the following steps:
  • the SoC core module of the multi-machine wireless synchronous track recorder starts to synchronously record the audio signal transmitted from the audio input module to the A/D conversion module, and generates an audio file at regular intervals.
  • the SoC core module is embedded in the head of the audio file.
  • the identification code of the current recording program and the synchronization time information is recorded in the recording file, and then the file is stored on the internal digital storage module;
  • the SoC core module transmits the recording files to the cloud server on the Internet for storage through the WiFi communication module.
  • the cloud server automatically synthesizes the multi-track recording engineering file according to the synchronization time information in the sub-track recording file.
  • the Bluetooth communication module in the SoC core module in the multi-machine wireless synchronization track recorder receives instructions from the mobile phone App to set the WiFi connection address to be connected to the WiFi communication module in the SoC core module and Password, connect the multi-machine wireless synchronization track recorder to the cloud server set on the Internet through WiFi, and the SoC core module in the multi-machine wireless synchronization track recorder obtains the synchronization time information through the cloud server or mobile App.
  • Preparation Start the power module to control the turn on of the recorder, use the mobile phone App to connect multiple Bluetooth communication modules in the SoC core module of the same type of recording through Bluetooth, and form the connected recorder into a Bluetooth mesh network, and use the mobile phone App to connect to the network through Bluetooth
  • the WiFi communication module in the SoC core module of all recorders in the network sends the WiFi connection address and password to be connected, and connects all the recorders to a dedicated cloud server set on the Internet through WiFi, and the SoC core module in the recorder passes through the cloud
  • the server or mobile phone App obtains the synchronization time information, connects the audio input module with the line signal of the external microphone or electronic musical instrument for recording, and connects the audio through the module with the external mixer for live sound reinforcement.
  • Start synchronous recording Press the recording button of any recorder in the mesh network or use the mobile phone App to send the control information to all recorders in the mesh network via Bluetooth, and the SoC core module of the recorder starts synchronous recording from the audio input
  • the module transmits the audio signal to the A/D conversion module, and generates an audio file at regular intervals.
  • the SoC core module embeds the unified identification code of the current recording program in the head of the audio file and records the synchronization time information in the recording file , And then store the file on the internal digital storage module.
  • the SoC core module transmits the recording files to the cloud server on the Internet through the WiFi communication module for storage for post-production use.
  • the multi-machine wireless synchronous track recording recorder is small in size, and the wireless network technology can be used to connect multiple recorders responsible for track recording to a wireless mesh network for synchronous recording.
  • Each recorder is not affected by physical
  • the connection line is limited so that it can be freely arranged in the location of different sound sources.
  • Each user is only responsible for simply connecting the line output of his microphone or electronic musical instrument to the audio input module of the recorder, and the original live sound reinforcement
  • the cable used is connected to the audio through the module.
  • All recording file headers are embedded with the unified current recording program identification code and the synchronization time information obtained from the cloud server or mobile phone for later synthesis of multi-track audio files, which is effective This eliminates the tedious work of traditional multi-track recorders that require professional sound engineers to carry out a large number of front-end wiring connections and rear-mounted wire removal storage, as well as the complicated operations of parameter setting and pre-tuning in the multi-track recorder.
  • each user can instantly obtain personal recording files from their own recorder storage and cloud server space, and share multi-track recording engineering files through the cloud server for the first time, thereby greatly improving the efficiency of post-audio production .
  • FIG. 1 is a schematic diagram of the system structure of a multi-unit wireless synchronous track recorder in some embodiments of the present invention
  • Fig. 2 is a schematic diagram of the external connection of a multi-unit wireless synchronized track dividing recorder in some embodiments of the present invention.
  • the present invention provides a multi-machine wireless synchronous track recorder 100 with external communication, including a power supply module 110, an audio input module 120, an A/D conversion module 130, a SoC core module 140, The audio pass module 180, the key module 150, the LED indicator module 160, and the digital storage module 170, wherein the power module 110 supplies power to the audio input module 120 and controls the operation of the SoC core module 140 (for example, powering on and off), and the SoC core module 140 connects and controls The A/D conversion module 130, the key module 150, the LED indicator module 160 and the digital storage module 170.
  • the SoC core module 140 communicates with the digital storage module 170 and the Bluetooth communication module 142 and the WiFi communication module 141 inside the SoC core module 140, respectively.
  • the Bluetooth communication module 142 and the WiFi communication module 141 perform information transmission with external devices.
  • Multiple voice recorders 100 form a Bluetooth network through a Bluetooth communication module and mobile phone Bluetooth.
  • the present invention provides a hardware recording device, which can use wireless network technology to connect multiple recorders responsible for track recording into a wireless mesh network for synchronous recording.
  • Each recorder is not restricted by physical connection lines in the music scene and can Arrange freely in the location of different sound sources.
  • Each user only needs to connect the line output of his microphone or electronic musical instrument to the audio input module of the recorder, and connect the original live sound reinforcement cable with The audio can be connected through the module.
  • the header of all recording files is embedded with the unified current recording program identification code and the synchronization time information obtained from the cloud server or mobile phone for the later synthesis of multi-track audio files, effectively eliminating the traditional multi-track audio files.
  • the track recorder requires a professional sound engineer to perform a lot of tedious work of pre-wiring connection and post-removal storage, as well as complex operations of parameter setting and pre-tuning in the multi-track recorder.
  • each user can instantly obtain personal recording files from their own recorder storage and cloud server space, and share multi-track recording engineering files through the cloud server for the first time, thereby greatly improving the efficiency of post-audio production .
  • Preparation Start the power module 110 to control the start of the recorder, use the mobile phone App to connect multiple Bluetooth communication modules 142 in the SoC core module 140 of the same type of recording through Bluetooth, and form the connected recorders into a Bluetooth mesh network, and use the mobile phone App to pass Bluetooth sends the WiFi connection address and password to be connected to the WiFi communication module 141 in the SoC core module 140 of all voice recorders in the mesh network, and connects all voice recorders 100 to a dedicated cloud server set on the Internet through WiFi, and the recorder is in
  • the SoC core module 140 obtains the synchronization time information through the cloud server or mobile phone App, connects the audio input module with the line signal of the external microphone or electronic musical instrument for recording, and connects the audio through the module 180 with the external mixer 200 for Live sound reinforcement.
  • the input module 120 transmits the audio signal to the A/D conversion module 130 and generates an audio file at regular intervals.
  • the SoC core module 140 embeds the unified identification code of the current recording program in the head of the audio file and records the synchronization time information In the recording file, the file is then stored on the internal digital storage module 170.
  • the SoC core module 140 transmits the recording file to a cloud server on the Internet through the WiFi communication module 141 for storage for post-production use.
  • the power module 110 in the recorder 100 is powered by a battery or USB power source, and the power module 110 is activated to control the audio input module 120 and the SoC core module 140 to enter the working state.
  • the Bluetooth communication module 142 in the SoC core module 140 in the recorder 100 is connected with the Bluetooth communication module 142 in other recorders of the same model and the Bluetooth of the mobile phone to form a Bluetooth mesh network.
  • the Bluetooth communication module 142 in the SoC core module 140 in the recorder 100 receives an instruction from the mobile phone App to set the WiFi connection address and password to be connected to the WiFi communication module 141 in the SoC core module 140, and the recorder 100 passes WiFi Connect with the cloud server installed on the Internet.
  • the audio input module 120 in the recorder 100 is connected to an external microphone or line audio input, and includes a Canon/large three-core hybrid jack, a small three-core jack, and a lotus jack.
  • the internal signal amplification and power supply circuit it can receive the stage Wired microphones, wireless microphones, video microphones, shotgun microphones, lavalier microphones, balanced and unbalanced line audio signals, and transmit the signals to the A/D conversion module 130. It is suitable for various live recordings of concerts, conferences, group teaching and auxiliary recording of video shooting.
  • the A/D conversion module 130 in the recorder 100 converts the analog audio signal from the audio input module 120 into a digital audio format, which is compatible with various formats ranging from 16 bits/44.1 kHz to 24 bits/192 kHz. Kind of sampling rate.
  • the SoC core module 140 is controlled to start recording the digital audio signal transmitted from the audio input module 120 to the A/D conversion module 130, and at regular intervals An audio file is generated, and then the file is stored on the digital storage module 170.
  • the audio in the recorder 100 is directly transmitted to the external mixer 200 connected to the audio input signal with the highest fidelity through the module 180.
  • the internal digital storage module 170 in the recorder 100 adopts an SD card or a digital flash memory or a hard disk to locally store the audio files recorded by the SoC core module 140.
  • the SoC core module 140 in the recorder 100 automatically transmits the recorded audio files to a cloud server set on the Internet through the internal WiFi communication module 141 for backup storage, and the SoC core module 140 will compare the digital storage module at any time If there is insufficient capacity of the digital storage module, the SoC core module 140 will automatically delete the files that were recorded first and have been fully synchronized to the cloud server in the order of the recording time. Free up recording capacity for the digital storage module 170.
  • the present invention provides a multi-machine wireless synchronization track recording system, including the above-mentioned multiple multi-machine wireless synchronization track track recorders 100, a cloud server 300, and a mobile phone 400.
  • the multi-machine wireless synchronization track track recorder 100 The Bluetooth communication module 141 in the multi-machine wireless synchronization track recorder is connected with the Bluetooth communication module and the mobile phone Bluetooth to form a Bluetooth mesh network, and the WIFI communication module 141 in the multiple multi-machine wireless synchronization track recorder 100 Connect with the cloud server 300.
  • the present invention provides a multi-machine wireless synchronization track recording method, which adopts the above-mentioned multi-machine wireless synchronization track recording system, and includes the following steps:
  • the SoC core module 140 of the multi-machine wireless synchronization track recorder 100 starts to synchronously record the audio signal transmitted from the audio input module 120 to the A/D conversion module 130, and generates an audio file at regular intervals.
  • the SoC core module 140 records the audio file Embedded in the header of the unified current recording program identification code and record the synchronization time information in the recording file, and then store the file on the internal digital storage module 170;
  • the SoC core module 140 transmits the recording file to the cloud server 300 on the Internet through the WiFi communication module 141 for storage.
  • the method further includes the following steps: the cloud server 300 automatically synthesizes the multi-track recording engineering file according to the synchronization time information in the sub-track recording file.
  • the recording includes the following steps: the Bluetooth communication module 142 in the SoC core module 140 in the multi-machine wireless synchronization track recorder 100 receives an instruction from the mobile phone App to set the WiFi communication module 141 in the SoC core module to be connected WiFi connection address and password, connect the multi-machine wireless synchronization track recorder 100 to the cloud server 300 set on the Internet through WiFi, and the SoC core module 140 in the multi-machine wireless synchronization track recorder 100 through the cloud server 300 or mobile phone 400 Obtain synchronization time information.
  • the beneficial effects of the present invention are: the use of an audio interface compatible with all microphones and line signals and a high-sampling AD converter, through the local recording and cloud server synchronization storage, can be used for concerts, conferences, collective teaching and various live recordings
  • the recording files of video shooting-assisted recording are instantly and automatically transferred to the cloud server, which effectively solves the time-consuming and inefficient problems caused by the tedious work of a large number of manual transfer and file transfer of existing recorders, and eliminates the storage of portable recorders
  • the hidden danger of insufficient capacity also greatly facilitates audio editors who are not on-site to download recording files synchronously and perform post-editing work in time.

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Abstract

本发明涉及一种多机无线同步分轨录音机，包括电源模块、音频输入模块、A/D转换模块、SoC核心模块(含蓝牙和WiFi通讯模块)、音频通过模块、按键模块、LED指示模块、数字存储模块。其中，电源模块给音频输入模块供电和控制SoC核心模块的运行，SoC核心模块控制A/D转换模块、按键模块、LED指示模块，SoC核心模块分别与数字存储模块以及内部蓝牙和WiFi通讯模块双向通讯。本发明多机无线同步分轨录音机体积小巧，采用无线网络技术可将多台负责分轨录音的录音机连成无线网状网络进行同步录音。还提供了对应的录音系统及方法。

Description

一种多机无线同步分轨录音机、系统及方法 技术领域
本发明涉及录音设备领域，具体而言，涉及一种多机无线同步分轨录音机、一种多机无线同步分轨录音系统及一种多机无线同步分轨录音方法。
背景技术
现有多轨录音设备应用在音乐现场演出的录音时，需要专业录音师进行大量前置布线连接和后置拆线收纳工作，包括将各种话筒和音频线路信号集中通过多通道调音台接入到多轨录音机，以及在录音机中进行复杂参数设定和预调音的操作。这样既花费高昂的器材成本又耗费大量的时间，同时录音师的水平也会给录音品质和结果带来很大的不确定性，而且集中化的多轨录音设备由于体积大、接线多所以需要占用较大的现场空间，在众多空间有限的中小型演出场地中很难使用。另外，因为所有音频信号源在现有多轨录音设备中被集中录制在一个多轨录音工程文件中，如果每个音乐演奏员想得到自己演奏的单独录音文件，则需要请录音师将分轨文件一轨一轨地从多轨录音工程文件中导出再转发给每个人，耗费大量时间和精力。
发明内容
为了解决现有产品和技术中操作复杂、效率低、受场地空间限制、被录音者无法及时获得自己演奏的单独录音文件的问题，本发明提供一种采用无线网络技术的多机无线同步分轨录音机。该录音机体积小巧，采用蓝牙和WiFi技术组成无线网状网络并与设置在互联网上的云服务器相连接，通过一台录音机或手机App可同时遥控在无线网状网络内的多台录音机进行带有同步时间信息的分轨录音，先将音频录制在本机的内部存储器上，再将内部存储器上的分轨录音文件即时传输到云服务器，最后在云服务器上依据分轨录音文件内的同步时间信息自动合成多轨录音工程文件，满足高灵活度的音乐现场多轨录音和文件即时分享需求。
本发明解决其技术问题所采用的技术方案是：一种多机无线同步分轨录音机，包括电源模块、音频输入模块、A/D转换模块、SoC核心模块(含蓝牙和WiFi通讯模块)、音频通过模块、按键模块、LED指示模块、数字存储模块。其中，电源模块给音频输入模块供电和控制SoC核心模块的运行，SoC核心模块控制A/D转换模块、按键模块、LED指示模块，SoC核心模块分别与数字存储模块以及内部蓝牙和WiFi通讯模块双向通讯。
进一步的，所述录音机中的电源模块采用电池或USB电源供电。
进一步的，所述录音机中的SoC核心模块中的蓝牙通讯模块与其它同款录音机中的蓝牙通讯模块和手机蓝牙相连接，组成蓝牙网状网络。
进一步的，所述录音机中的SoC核心模块中的WiFi通讯模块与设置在互联网上的专用云服务器相连接。
进一步的，所述录音机中的音频输入模块与外部话筒或线路音频输入相连接，包括卡农/大三芯混合插口、小三芯插口、莲花插口。配合音频输入模块内部的放大和供电电路，可接收舞台有线话筒、无线话筒、视频话筒、枪式话筒、领夹话筒、平衡和非平衡线路音频信号，适用于音乐会现场录音和视频拍摄辅助录音。
进一步的，所述录音机中的A/D转换模块将模拟音频信号转换为数字音频格式，兼容从16比特/44.1千赫到24比特/192千赫之间的各种采样率。
进一步的，所述录音机中的SoC核心模块将数字音频信号录制成音频文件并存储在数字存储模块上。
进一步的，所述录音机中的音频通过模块将音频输入信号用最高的保真度直接传输给与之相连的外部调音台。
进一步的，所述录音机中的内部数字存储模块采用SD卡或数字闪存或硬盘。
第二方面，本发明提供了一种多机无线同步分轨录音系统，包括上述的多个多机无线同步分轨录音机、云服务器和手机，所述多机无线同步分轨录音机中的蓝牙通讯模块与其他多机无线同步分轨录音机中的蓝牙通讯模块及手机蓝牙蓝牙相连接，组成蓝牙网状网络，所述多个多机无线同步分轨录音机中的WIFI通讯模块与所述云服务器连接。
第三方面，本发明提供了一种多机无线同步分轨录音方法，采用了上述的多机无线同步分轨录音系统，包括如下步骤：
用户按下蓝牙网状网络中任何一台录音机的录音按键或用手机App通过蓝牙给在蓝牙网状网络中的所有录音机发送开始录音的控制信息；
多机无线同步分轨录音机的SoC核心模块开始同步录制从音频输入模块传输到A/D转换模块的音频信号，并每隔一段时间生成一个音频文件，SoC核心模块在音频文件的头部嵌入统一的当前录音节目的标识码并将同步时间信息记录在录音文件中，再将文件存储在内部数字存储模块上；
同一时间，SoC核心模块通过WiFi通讯模块将录音文件传输到互联网上的云服务器进行存储。
进一步地，还包括如下步骤：云服务器依据分轨录音文件内的同步时间信息自动合成多轨录音工程文件。
进一步地，录音之前包括如下步骤：所述多机无线同步分轨录音机中的SoC核心模块中的蓝牙通讯模块接收来自手机App的指令设置SoC核心模块中的WiFi通讯模块要连接的WiFi连接地址和密码，将多机无线同步分轨录音机通过WiFi与设置在互联网上的云服务器相连接，多机无线同步分轨录音机中的SoC核心模块通过云服务器或手机App获得同步时间信息。
本发明工作原理：
准备工作：启动电源模块控制录音机开机，用手机App通过蓝牙连接多台同款录音中的SoC核心模块中的蓝牙通讯模块并将已连接的录音机组成蓝牙网状网络，用手机App通过蓝牙向网状网络中所有录音机的SoC核心模块中的WiFi通讯模块发送要连接的WiFi连接地址和密码，并将所有录音机通过WiFi与设置在互联网上的专用云服务器相连接，录音机中的SoC核心模块通过云服务器或手机App获得同步时间信息，将音频输入模块与外部话筒或电子乐器的线路信号相连接用于录音，将音频通过模块与外部调音台相连接用于现场扩声。
开始同步录音：按下网状网络中任何一台录音机的录音按键或用手机App通过蓝牙给在网状网络中的所有录音机发送开始录音的控制信息，录音机的SoC核心模块开始同步录制从音频输入模块传输到A/D转换模块的音频信号，并每隔一段时间生成一个音频文件，SoC核心模块在音频文件的头部嵌入统一的当前录音节目的标识码并将同步时间信息记录在录音文件中，再将文件存储在内部数字存储模块上。同一时间，SoC核心模块通过WiFi通讯模块将录音文件传输到互联网上的云服务器存储供后期制作使用。
本发明的有益效果是：多机无线同步分轨录音机体积小巧，采用无线网络技术可将多台负责分轨录音的录音机连成无线网状网络进行同步录音，每台录音机在音乐现场不受物理连接线限制从而可以自由地布置在不同声音源的所在位置，每位使用者只需要负责将自己的话筒或电子乐器的线路输出简单地连接到录音机的音频输入模块，并将原有现场扩声用的连接线与音频通过模块相连接即可，所有录音文件头部都被嵌入统一的当前录音节目标识码和从云服务器或手机获取的同步时间信息以供后期合成多轨音频文件使用，有效地消除了传统多 轨录音机需要专业录音师进行大量前置布线连接和后置拆线收纳的繁琐工作以及在多轨录音机中进行参数设定和预调音的复杂操作。另一方面，每位使用者都可以从自己的录音机存储器和云服务器空间中即时获得个人的录音文件，以及通过云服务器第一时间共享多轨录音工程文件，从而大大提高了后期音频制作的效率。
附图说明
通过参考附图会更加清楚的理解本发明的特征和优点，附图是示意性的而不应理解为对本发明进行任何限制，在附图中：
图1为本发明一些实施例中的多机无线同步分轨录音机的系统结构示意图；
图2为本发明一些实施例中的多机无线同步分轨录音机的外部连接示意图。
具体实施方式
为了能够更清楚地理解本发明的上述目的、特征和优点，下面结合附图和具体实施方式对本发明进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是，本发明还可以采用其他不同于在此描述的其他方式来实施，因此，本发明的保护范围并不受下面公开的具体实施例的限制。
如图1、图2所示，本发明提供了一种带外部通讯的多机无线同步分轨录音机100，包括电源模块110、音频输入模块120、A/D转换模块130、SoC核心模块140、音频通过模块180、按键模块150、LED指示模块160、数字存储模块170，其中电源模块110给音频输入模块120供电和控制SoC核心模块140的运行(例如通断电)，SoC核心模块140连接控制A/D转换模块130、按键模块150、LED指示模块160和数字存储模块170，SoC核心模块140分别与数字存储模块170以及SoC核心模块140内部的蓝牙通讯模块142和WiFi通讯模块141双向通讯。所述蓝牙通讯模块142和WiFi通讯模块141与外部的设备进行信息传输。多台录音机100通过蓝牙通讯模块和手机蓝牙组成蓝牙网络。本发明提供了一种硬件的录音设备，能够采用无线网络技术可将多台负责分轨录音的录音机连成无线网状网络进行同步录音，每台录音机在音乐现场不受物理连接线限制从而可以自由地布置在不同声音源的所在位置，每位使用者只需要负责将自己的话筒或电子乐器的线路输出简单地连接到录音机的音频输入模块，并将原有现场扩声用的 连接线与音频通过模块相连接即可，所有录音文件头部都被嵌入统一的当前录音节目标识码和从云服务器或手机获取的同步时间信息以供后期合成多轨音频文件使用，有效地消除了传统多轨录音机需要专业录音师进行大量前置布线连接和后置拆线收纳的繁琐工作以及在多轨录音机中进行参数设定和预调音的复杂操作。另一方面，每位使用者都可以从自己的录音机存储器和云服务器空间中即时获得个人的录音文件，以及通过云服务器第一时间共享多轨录音工程文件，从而大大提高了后期音频制作的效率。
运行原理如下：
准备工作：启动电源模块110控制录音机开机，用手机App通过蓝牙连接多台同款录音中的SoC核心模块140中的蓝牙通讯模块142并将已连接的录音机组成蓝牙网状网络，用手机App通过蓝牙向网状网络中所有录音机的SoC核心模块140中的WiFi通讯模块141发送要连接的WiFi连接地址和密码，并将所有录音机100通过WiFi与设置在互联网上的专用云服务器相连接，录音机中的SoC核心模块140通过云服务器或手机App获得同步时间信息，将音频输入模块与外部话筒或电子乐器的线路信号相连接用于录音，将音频通过模块180与外部调音台200相连接用于现场扩声。
开始同步录音：按下网状网络中任何一台录音机的录音按键或用手机App通过蓝牙给在网状网络中的所有录音机发送开始录音的控制信息，录音机的SoC核心模块140开始同步录制从音频输入模块120传输到A/D转换模块130的音频信号，并每隔一段时间生成一个音频文件，SoC核心模块140在音频文件的头部嵌入统一的当前录音节目的标识码并将同步时间信息记录在录音文件中，再将文件存储在内部数字存储模块170上。同一时间，SoC核心模块140通过WiFi通讯模块141将录音文件传输到互联网上的云服务器存储供后期制作使用。
进一步的，所述录音机100中的电源模块110采用电池或USB电源供电，启动电源模块110控制音频输入模块120和SoC核心模块140进入工作状态。
进一步的，所述录音机100中的SoC核心模块140中的蓝牙通讯模块142与其它同款录音机中的蓝牙通讯模块142和手机蓝牙相连接，组成蓝牙网状网络。
进一步的，所述录音机100中的SoC核心模块140中的蓝牙通讯模块142接收来自手机App的指令设置SoC核心模块140中的WiFi通讯模块141要连接的WiFi连接地址和密码，将录音机100通过WiFi与设置在互联网上的云服务器相连接。
进一步的，所述录音机100中的音频输入模块120与外部话筒或线路音频输入相连接，包 括卡农/大三芯混合插口、小三芯插口、莲花插口，配合内部信号放大和供电电路，可接收舞台有线话筒、无线话筒、视频话筒、枪式话筒、领夹话筒、平衡和非平衡线路音频信号，并将信号传输给A/D转换模块130。适用于音乐会、会议、集体教学各类现场录音和视频拍摄辅助录音。
进一步的，所述录音机100中的A/D转换模块130将来自音频输入模块120的模拟音频信号转换为数字音频格式，兼容从16比特/44.1千赫到24比特/192千赫之间的各种采样率。
进一步的，所述录音机100中的按键模块150的录音按键被按下时，控制SoC核心模块140开始录制从音频输入模块120传输到A/D转换模块130的数字音频信号，并每隔一段时间生成一个音频文件，再将文件存储在数字存储模块170上。
进一步的，所述录音机100中的音频通过模块180将音频输入信号用最高的保真度直接传输给与之相连的外部调音台200。
进一步的，所述录音机100中的内部数字存储模块170采用SD卡或数字闪存或硬盘，在本地存储由SoC核心模块140录制的音频文件。
进一步的，所述录音机100中的SoC核心模块140通过内部WiFi通讯模块141将已录制的音频文件自动传输到设置在互联网上的云服务器做备份存储，SoC核心模块140会随时比对数字存储模块170中的文件和云服务器上的文件的同步备份结果，如果出现数字存储模块容量不足时，SoC核心模块140会按录音时间的先后顺序自动删除先录制的且已完全同步到云服务器的文件，为数字存储模块170腾出可录音容量。
第二方面，本发明提供了一种多机无线同步分轨录音系统，包括上述的多个多机无线同步分轨录音机100、云服务器300和手机400，所述多机无线同步分轨录音机100中的蓝牙通讯模块141与其他多机无线同步分轨录音机中的蓝牙通讯模块及手机蓝牙相连接，组成蓝牙网状网络，所述多个多机无线同步分轨录音机100中的WIFI通讯模块141与所述云服务器300连接。
第三方面，本发明提供了一种多机无线同步分轨录音方法，采用了上述的多机无线同步分轨录音系统，包括如下步骤：
用户按下蓝牙网状网络中任何一台录音机的录音按键或用手机App通过蓝牙给在蓝牙网状网络中的所有录音机发送开始录音的控制信息；
多机无线同步分轨录音机100的SoC核心模块140开始同步录制从音频输入模块120传 输到A/D转换模块130的音频信号，并每隔一段时间生成一个音频文件，SoC核心模块140在音频文件的头部嵌入统一的当前录音节目的标识码并将同步时间信息记录在录音文件中，再将文件存储在内部数字存储模块170上；
同一时间，SoC核心模块140通过WiFi通讯模块141将录音文件传输到互联网上的云服务器300进行存储。
进一步地，还包括如下步骤：云服务器300依据分轨录音文件内的同步时间信息自动合成多轨录音工程文件。
进一步地，录音之前包括如下步骤：所述多机无线同步分轨录音机100中的SoC核心模块中140的蓝牙通讯模块142接收来自手机App的指令设置SoC核心模块中的WiFi通讯模块141要连接的WiFi连接地址和密码，将多机无线同步分轨录音机100通过WiFi与设置在互联网上的云服务器300相连接，多机无线同步分轨录音机100中的SoC核心模块140通过云服务器300或手机400获得同步时间信息。
本发明的有益效果是：采用兼容所有话筒和线路信号的音频接口和高采样率的AD转换器，通过本机录音和云服务器同步存储，可将音乐会、会议、集体教学各类现场录音和视频拍摄辅助录音的录音文件即时自动传输到云服务器上，有效地解决了现有录音机需要大量手工转存和传输文件的繁琐工作所带来的耗时和效率低下的问题，消除了便携录音机存储容量不足的隐患，同时也极大地方便了不在现场的音频剪辑人员同步下载录音文件并及时进行后期编辑工作。
在本发明中，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。术语“多个”指两个或两个以上，除非另有明确的限定。
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。

Claims (9)

  1. 一种多机无线同步分轨录音机，其特征在于，包括电源模块、音频输入模块、A/D转换模块、SoC核心模块、音频通过模块、按键模块、LED指示模块、数字存储模块，其中，电源模块给音频输入模块供电和控制SoC核心模块的运行，SoC核心模块与A/D转换模块、按键模块、LED指示模块和数字存储模块连接，所述A/D转换模块和所述音频通过模块与所述音频输入模块连接，所述SoC核心模块含有蓝牙通讯模块和WIFI通讯模块，所述SoC核心模块分别与数字存储模块以及蓝牙通讯模块和WIFI通讯模块双向通讯。
  2. 根据权利要求1所述的多机无线同步分轨录音机，其特征在于，所述蓝牙通讯模块与其他多机无线同步分轨录音机中的蓝牙通讯模块及手机蓝牙相连接，组成蓝牙网状网络。
  3. 根据权利要求1所述的多机无线同步分轨录音机，其特征在于，所述SoC核心模块将数字音频信号录制成音频文件并存储在所述数字存储模块上。
  4. 根据权利要求1所述的多机无线同步分轨录音机，其特征在于，音频通过模块用于将音频输入信号用最高的保真度直接传输给与之相连的外部调音台。
  5. 根据权利要求1所述的多机无线同步分轨录音机，其特征在于，所述WiFi通讯模块用于与设置在互联网上的专用云服务器连接。
  6. 一种多机无线同步分轨录音系统，其特征在于，包括如权利要求1～5任一所述的多个多机无线同步分轨录音机、云服务器和手机，所述多机无线同步分轨录音机中的蓝牙通讯模块与其他多机无线同步分轨录音机中的蓝牙通讯模块及手机蓝牙蓝牙相连接，组成蓝牙网状网络，所述多个多机无线同步分轨录音机中的WIFI通讯模块与所述云服务器连接。
  7. 一种多机无线同步分轨录音方法，其特征在于，采用了权利要求6中所述的多机无线同步分轨录音系统，包括如下步骤：
    用户按下蓝牙网状网络中任何一台录音机的录音按键或用手机App通过蓝牙给在蓝牙网状网络中的所有录音机发送开始录音的控制信息；
    多机无线同步分轨录音机的SoC核心模块开始同步录制从音频输入模块传输到A/D转换模块的音频信号，并每隔一段时间生成一个音频文件，SoC核心模块在音频文件的头部嵌入统一的当前录音节目的标识码并将同步时间信息记录在录音文件中，再将文件存储在内部数字存储模块上；
    同一时间，SoC核心模块通过WiFi通讯模块将录音文件传输到互联网上的云服务器进行存储。
  8. 根据权利要求7所述的多机无线同步分轨录音方法，其特征在于，还包括如下步骤：云服务器依据分轨录音文件内的同步时间信息自动合成多轨录音工程文件。
  9. 根据权利要求7所述的多机无线同步分轨录音方法，其特征在于，录音之前包括如下步骤：所述多机无线同步分轨录音机中的SoC核心模块中的蓝牙通讯模块接收来自手机App的指令设置SoC核心模块中的WiFi通讯模块要连接的WiFi连接地址和密码，将多机无线同步分轨录音机通过WiFi与设置在互联网上的云服务器相连接，多机无线同步分轨录音机中的SoC核心模块通过云服务器或手机App获得同步时间信息。
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