CN111986715A

CN111986715A - Recording system and recording method

Info

Publication number: CN111986715A
Application number: CN202010838416.6A
Authority: CN
Inventors: 倪璞; 方小伟; 徐安文
Original assignee: iFlytek Co Ltd
Current assignee: iFlytek Co Ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2020-11-24
Anticipated expiration: 2040-08-19
Also published as: CN111986715B

Abstract

The application provides a recording system and a recording method, wherein the recording system comprises: a first recording device and a second recording device; the first recording device is used for acquiring audio data, obtaining first audio data and controlling the second recording device to synchronously acquire second audio data; acquiring the second audio data, performing reverberation processing on the first audio data and the second audio data to obtain reverberated third audio data, or respectively storing the first audio data and the second audio data; and the second recording equipment is used for synchronously acquiring audio data under the control of the first recording equipment to obtain second audio data and sending the second audio data to the first recording equipment. The recording system can realize synchronous and independent audio acquisition of multiple speakers by means of multiple recording devices, so that the recording system can be competent for voice recording tasks of multiple speakers in a scene of multiple speakers.

Description

Recording system and recording method

Technical Field

The application relates to the technical field of recording, in particular to a recording system and a recording method.

Background

Recording is an effective method for recording the speaking content of a speaker in real time in occasions such as news interviews, meetings or lectures.

The application of recording devices such as a recording pen and the like enables users to conveniently record audio. The existing recording device is usually a single device, and is responsible for recording all sounds in a scene in application. However, the increase of the number of speakers and the change of the positions of the speakers often result in poor recording effect of the recording equipment, and moreover, after the recording of the single recording equipment is completed, an audio file is formed, and the contents of the speeches of different speakers cannot be accurately distinguished in the audio file. Therefore, the conventional recording equipment cannot be competent for recording tasks in a multi-speaker scene, and the recording effect is poor.

Disclosure of Invention

Based on the technical current situation, the application provides a recording system and a recording method, which aim to realize multi-party synchronous recording in the same scene and improve the scene recording quality.

In order to achieve the above purpose, the present application specifically proposes the following technical solutions:

a sound recording system comprising:

a first recording device and a second recording device;

the first recording device is used for acquiring audio data, obtaining first audio data and controlling the second recording device to synchronously acquire second audio data; acquiring the second audio data, performing reverberation processing on the first audio data and the second audio data to obtain reverberated third audio data, or respectively storing the first audio data and the second audio data;

and the second recording equipment is used for synchronously acquiring audio data under the control of the first recording equipment to obtain second audio data and sending the second audio data to the first recording equipment.

Optionally, the first recording device includes a first connection terminal, and the second recording device includes a second connection terminal; when the first connecting terminal and the second connecting terminal are in contact fit, the first recording device and the second recording device are electrically connected and connected through the connecting terminals in contact fit.

Optionally, when the first connection terminal and the second connection terminal are in contact fit, the second recording device sends the second audio data to the first recording device, including:

the second recording equipment passes through connecting terminal will second audio data sends for first recording equipment.

Optionally, the performing, by the first sound recording device, reverberation processing on the first audio data and the second audio data to obtain reverberated third audio data includes:

and after the first connecting terminal and the second connecting terminal are in contact fit, carrying out reverberation processing on first audio data acquired by the first recording equipment and second audio data acquired by the second recording equipment to obtain reverberated third audio data.

Optionally, the first sound recording device and the second sound recording device respectively include a first wireless communication module;

the second audio recording device sends the second audio data to the first audio recording device, including:

and the second sound recording equipment sends the second audio data to the first sound recording equipment through the first wireless communication module.

Optionally, the first sound recording apparatus is further configured to:

sending the collected first audio data to the second recording device through the first wireless communication module, and playing the received second audio data;

the second sound recording device is further configured to:

and receiving and playing the first audio data sent by the first sound recording device through the first wireless communication module.

Optionally, first recording equipment with second recording equipment includes the connection structure that matches each other, works as first recording equipment with when the connection structure cooperation of second recording equipment is connected, first connection terminal with the cooperation of second connection terminal contact.

Optionally, the connecting structure comprises a first magnetic structure and a second magnetic structure with opposite magnetism;

the first magnetic structure is arranged in the first side wall of the first recording device, and the second magnetic structure is arranged in the second side wall of the second recording device; the first connecting terminal and the second connecting terminal are respectively arranged on the first side wall and the second side wall;

when the first side wall of the first recording equipment and the second side wall of the second recording equipment are attached, the first magnetic structure and the second magnetic structure are attracted, and meanwhile, the first connecting terminal and the second connecting terminal are in contact fit.

Optionally, the second connection terminal is embedded in a second side wall of the second recording device, and a through hole corresponding to the second connection terminal is formed in the second side wall;

the first connecting terminal and the first magnetic structure are arranged on a connecting plate in the first recording device, the connecting plate is arranged on the inner surface of the first side wall through an elastic component, and a through hole corresponding to the first connecting terminal on the connecting plate in position is arranged on the first side wall;

when the first side wall is separated from the second side wall, the connecting plate is far away from the inner surface of the first side wall, so that the first connecting terminal is arranged in the first recording device; when the first side wall is attached to the second side wall and the through hole in the first side wall is aligned with the through hole in the second side wall, the first magnetic structure and the second magnetic structure are attracted, the connecting plate is close to the inner surface of the first side wall, and the first connecting terminal penetrates through the through hole in the first side wall and the through hole in the second side wall to be in contact fit with the second connecting terminal.

Optionally, the first sound recording apparatus is further configured to:

and determining a sound pickup mode according to the contact state of the first connecting terminal and the second connecting terminal.

Optionally, the sound recording system further includes:

the system comprises a control terminal and a server connected with the control terminal;

the control terminal is used for carrying out pickup mode configuration on the first sound recording equipment, receiving audio data sent by the first sound recording equipment and sending the received audio data to the server;

and the server is used for receiving the audio data sent by the control terminal and editing the received audio data.

Optionally, the first recording device collects audio data to obtain first audio data, and controls the second recording device to synchronously collect second audio data, including:

and controlling the second sound recording equipment to synchronously acquire second audio data according to the set sound pickup mode.

A sound recording method is applied to the sound recording system, and the method comprises the following steps:

the method comprises the steps that a first recording device acquires audio data to obtain first audio data, and a second recording device is controlled to acquire second audio data synchronously;

the second recording equipment synchronously acquires audio data under the control of the first recording equipment to obtain second audio data, and sends the second audio data to the first recording equipment;

and the first sound recording equipment performs reverberation processing on the first audio data and the second audio data to obtain reverberated third audio data, or stores the first audio data and the second audio data respectively.

Optionally, the first recording device includes a first connection terminal, and the second recording device includes a second connection terminal; when the first connection terminal and the second connection terminal are in contact fit, the sending the second audio data to the first recording apparatus includes:

the second recording device sends the second audio data to the first recording device through the connecting terminal;

the first sound recording device performs reverberation processing on the first audio data and the second audio data to obtain reverberated third audio data, and the reverberation processing method includes:

after the first recording equipment is in contact fit with the first connecting terminal and the second connecting terminal, reverberation processing is carried out on first audio data collected by the first recording equipment and second audio data collected by the second recording equipment to obtain third audio data after reverberation.

Optionally, the method further includes:

and the second sound recording equipment receives and plays the first audio data sent by the first sound recording equipment through the first wireless communication module.

The sound recording system that this application provided, including first sound recording equipment and second sound recording equipment, audio data can be gathered to first sound recording equipment, obtains first audio data to and control the synchronous collection audio data of second sound recording equipment, obtain second audio data. Meanwhile, the second audio data collected by the second audio recording device is sent to the first audio recording device, and the first audio recording device may perform reverberation processing on the first audio data and the second audio data to obtain third audio data after reverberation, or may store the first audio data and the second audio data respectively. The recording system can realize synchronous and independent audio acquisition of multiple speakers by means of multiple recording devices, so that the recording system can be competent for voice recording tasks of multiple speakers in a scene of multiple speakers.

Meanwhile, the recording system can record the audio of the same speaker from multiple dimensions by means of multiple recording devices, and then perform reverberation processing on the audio data recorded from the multiple dimensions, so that the signal-to-noise ratio of the recording file can be enhanced, and the recording quality can be improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic diagram of a recording system according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of components of recording devices of the recording system according to the embodiment of the present application;

fig. 3 is a schematic structural diagram of another view angle of each recording device of the recording system according to the embodiment of the present application;

fig. 4 is a schematic structural diagram of a combined sound recording device of the sound recording system according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of another combined view angle of the recording devices of the recording system according to the embodiment of the present application;

FIG. 6 is another schematic diagram of a sound recording system provided by an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a first sound recording device of the sound recording system according to an embodiment of the present application;

FIG. 8 is a schematic structural diagram of a second sound recording device of the sound recording system according to the embodiment of the present application;

FIG. 9 is a schematic diagram of a connection structure of a recording system according to an embodiment of the present application when a first recording device and a second recording device are separated;

fig. 10 is a schematic diagram illustrating a connection structure of a first recording device and a second recording device of a recording system according to an embodiment of the present application;

fig. 11 is a flowchart illustrating a recording method according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

An embodiment of the present application provides a recording system, as shown in fig. 1, the recording system includes:

a first sound recording apparatus 1 and a second sound recording apparatus 2;

the first recording device 1 is configured to acquire audio data, obtain first audio data, and control the second recording device 2 to acquire second audio data synchronously; acquiring the second audio data, performing reverberation processing on the first audio data and the second audio data to obtain reverberated third audio data, or respectively storing the first audio data and the second audio data;

and the second recording device 2 is used for synchronously acquiring audio data under the control of the first recording device to obtain second audio data, and sending the second audio data to the first recording device 1.

Specifically, the sound recording system provided in the embodiment of the present application at least includes two sound recording devices, which are the first sound recording device 1 and the second sound recording device 2, respectively. For example, the first and second

sound recording apparatuses

1 and 2 may be a sound recording apparatus such as a recording pen.

The first sound recording device 1 and the second sound recording device 2 can be used separately or combined together. When first recording equipment 1 and second recording equipment 2 separation application, can carry out the audio frequency to different speakers respectively and record, when first recording equipment 1 and second recording equipment 2 combined application, can carry out the audio frequency to same speaker or to same scene and record. Moreover, the first sound recording device 1 and the second sound recording device 2 can realize the same sound recording function, and a wired or wireless data transmission link is arranged between the first sound recording device and the second sound recording device.

In order to store the audio data recorded by the first recording device 1 and the second recording device 2 in a unified manner, so as to facilitate subsequent audio data processing, in the embodiment of the application, after the first recording device 1 and the second recording device 2 collect the audio data, the second recording device 2 sends the collected audio data to the first recording device 1, and the first recording device 1 stores the audio data collected by itself in a unified manner with the audio data collected by the second recording device 2.

For example, in the embodiment of the present application, the master-slave division is provided for the first sound recording apparatus 1 and the second sound recording apparatus 2 described above. The first sound recording apparatus 1 performs sound recording control of the second sound recording apparatus 2 as a main sound recording apparatus. Specifically, when the first sound recording device 1 starts recording audio data, the first sound recording device 1 sends a control signal to the second sound recording device 2 to control the second sound recording device 2 to start recording audio data synchronously.

Referring to fig. 2, in the embodiment of the present application, the first sound recording apparatus 1 and the second sound recording apparatus 2 described above respectively include

microphone arrays

101 and 201, and

directional microphones

102 and 202, and are capable of performing omnidirectional sound pickup and directional sound pickup, respectively. In actual work, the first sound recording device 1 and the second sound recording device 2 can flexibly control the microphone array to pick up sound or control the directional microphone to pick up sound according to the difference of the sound pickup modes.

For example, in the embodiment of the present application, the sound pickup modes of the first sound recording apparatus 1 and the second sound recording apparatus 2 may be configured, for example, the first sound recording apparatus 1 is set to pickup sound omnidirectionally, the second sound recording apparatus 2 is set to pickup sound directionally at the same time, or both the first sound recording apparatus 1 and the second sound recording apparatus 2 are set to pickup sound omnidirectionally or directionally at the same time.

As an alternative implementation manner, the sound pickup modes of the first sound recording apparatus 1 and the second sound recording apparatus 2 may be set on the first sound recording apparatus 1, for example, the sound pickup mode may be set through the control key 103 on the first sound recording apparatus 1. The first sound recording device 1 sends a sound pickup mode control signal to the second sound recording device 2 according to the set sound pickup mode information, so that the second sound recording device 2 synchronously acquires second audio data according to the set sound pickup mode.

It should be noted that, the "synchronously recording audio data" may be that both the first recording apparatus 1 and the second recording apparatus 2 record audio data at the same time; alternatively, the first sound recording device 1 and the second sound recording device 2 may perform asynchronous audio recording in the same audio scene for different targets, for example, in a conference scene, the first sound recording device 1 and the second sound recording device 2 perform speech recording for different speakers, and at this time, since the first sound recording device 1 and the second sound recording device 2 perform audio recording in the same conference scene, the recorded audio data have relevance in both time and content, it may also be referred to as synchronously recording audio data.

After the second audio data collected by the second audio recording device 2 is sent to the first audio recording device 1, the first audio data collected by the first audio recording device 1 and the second audio data sent by the second audio recording device 2 are stored in a unified manner.

Illustratively, when the first audio data and the second audio data are audio data obtained by performing synchronous audio acquisition on the same speaker of the same audio scene by the first audio recording device 1 and the second audio recording device 2, the first audio recording device 1 performs reverberation on the first audio data and the second audio data to obtain reverberated third audio data, and stores the third audio data. The first audio data, the second audio data, and the third audio data may be subjected to noise reduction processing.

It can be understood that, since the first audio data and the second audio data are audio data obtained by synchronously performing audio acquisition on the same speaker, the first audio data and the second audio data are subjected to noise reduction, reverberation and other processing to obtain third audio data, and the third audio data is stored, so that the signal-to-noise ratio of the stored recording can be higher.

When the first audio data and the second audio data are audio data obtained by performing synchronous audio acquisition on different speakers in the same audio scene by the first audio recording device and the second audio recording device, the first audio recording device 1 stores the first audio data and the second audio data respectively.

It can be understood that, since the first audio data and the second audio data are audio data collected by different speakers in the same audio scene, storing the first audio data and the second audio data separately is beneficial to distinguishing speech contents of different speakers from a recording file of the audio scene.

It should be noted that the sound recording system provided in the embodiment of the present application may further include more sound recording apparatuses, for example, may further include a third sound recording apparatus, a fourth sound recording apparatus, a fifth sound recording apparatus, and the like. The embodiment of the present application only takes the first recording apparatus 1 and the second recording apparatus 2 as examples, and introduces the operation and functions of the recording system composed of a plurality of recording apparatuses proposed in the present application. When the recording system comprises more recording devices, one of the recording devices (for example, the first recording device 1) is used as a main recording device for acquiring audio data, receiving the audio data acquired by the other recording devices, and performing reverberation processing on the audio data acquired by the recording device or respectively storing the audio data; and the other recording devices except the master recording device are used as slave recording devices and are used for synchronously acquiring audio data under the control of the master recording device and sending the acquired audio data to the master recording device. When the recording system provided by the application comprises more recording devices, independent audio acquisition of more speakers in the same audio scene can be realized, and stronger voice noise reduction processing can be realized through audio data acquisition of more dimensions.

It can be seen from the above description that the recording system provided by the embodiment of the present application includes first recording device and second recording device, and first recording device can acquire audio data to obtain first audio data, and control second recording device to acquire audio data synchronously to obtain second audio data. Meanwhile, the second audio data collected by the second audio recording device is sent to the first audio recording device, and the first audio recording device may perform reverberation processing on the first audio data and the second audio data to obtain third audio data after reverberation, or may store the first audio data and the second audio data respectively. The recording system can realize synchronous and independent audio acquisition of multiple speakers by means of multiple recording devices, so that the recording system can be competent for voice recording tasks of multiple speakers in a scene of multiple speakers.

As an alternative implementation, the first sound recording apparatus 1 and the second sound recording apparatus 2 are electrically connected and data-link connected through respective connection terminals.

As shown in fig. 2 and 3, the first connection terminal 104 is provided on the first sound recording apparatus 1, while the second connection terminal 204 is provided on the second sound recording apparatus 2. Illustratively, the first connection terminal 104 is disposed on the outer surface of the first sound recording apparatus 1, and the second connection terminal is disposed on the outer surface of the second sound recording apparatus 2, as shown in fig. 4 and 5, when the outer surfaces of the first sound recording apparatus 1 and the second sound recording apparatus 2 contact each other, so that the first connection terminal 104 of the first sound recording apparatus 1 contacts and mates with the second connection terminal 204 of the second sound recording apparatus 2, the first sound recording apparatus 1 and the second sound recording apparatus 2 are electrically connected and data-link connected through the contact-mating connection terminals.

Illustratively, the first connection terminal and the second connection terminal are metal connection terminals, so that when the two terminals are in contact, the electrical connection and the data link connection can be realized. The shapes, structures, sizes and the like of the first connecting terminal and the second connecting terminal are matched, for example, the first connecting terminal is of a convex structure, and the second connecting terminal is of a concave structure with matched shapes and sizes, so that when the first connecting terminal and the second connecting terminal are contacted, the structures of the first connecting terminal and the second connecting terminal are matched with each other, and the contact is firm.

Based on the above arrangement of the first connection terminal 104 and the second connection terminal 204, as an exemplary implementation manner, when the first connection terminal 104 of the first sound recording apparatus 1 and the second connection terminal 204 of the second sound recording apparatus 2 are in contact fit, and the second sound recording apparatus 2 sends the collected second audio data to the first sound recording apparatus 1, the second audio data can be specifically sent to the first sound recording apparatus 1 through the above connection terminals.

It can be understood that when the first recording apparatus 1 and the second recording apparatus 2 are combined in a contact manner as shown in fig. 4 and 5, the first connection terminal 104 of the first recording apparatus 1 and the second connection terminal 204 of the second recording apparatus 2 can be ensured to be matched in a contact manner, and at this time, the first recording apparatus 1 and the second recording apparatus 2 can only be combined together at the same position for audio data acquisition.

For example, the first sound recording device 1 and the second sound recording device 2 may perform audio data acquisition by a microphone array or a directional microphone, respectively.

For example, the first sound recording apparatus 1 and the second sound recording apparatus 2 may be simultaneously set to a directional sound pickup mode in which the directional microphone 102 of the first sound recording apparatus 1 and the directional microphone 202 of the second sound recording apparatus 2 pick up sound, and the microphone array 101 of the first sound recording apparatus 1 and the microphone array 201 of the second sound recording apparatus 2 do not pick up sound.

Alternatively, the first sound recording apparatus 1 and the second sound recording apparatus 2 may be simultaneously set to an omnidirectional sound pickup mode in which the microphone array 101 of the first sound recording apparatus 1 and the microphone array 201 of the second sound recording apparatus 2 pick up sound, and the directional microphone 102 of the first sound recording apparatus 1 and the directional microphone 202 of the second sound recording apparatus 2 do not pick up sound.

It can be determined that when the first connection terminal 104 of the first sound recording apparatus 1 and the second connection terminal 204 of the second sound recording apparatus 2 are in contact fit, they can only simultaneously perform synchronous audio capture with respect to the same target, for example, with respect to the same speaker, or with respect to the same audio scene, and the audio contents captured by both are actually the same audio contents.

At this time, the first audio recording device 1 performs reverberation processing on the first audio data collected by the first audio recording device 1 and the second audio data collected by the second audio recording device 2, that is, performs reverberation processing on the first audio data collected by the first audio recording device 1 and the second audio data collected by the second audio recording device 2 after the first connection terminal 104 of the first audio recording device 1 and the second connection terminal 204 of the second audio recording device 2 are in contact fusion, so as to obtain third audio data after reverberation.

That is, the first sound recording device 1 performs reverberation processing on the first audio data and the second audio data respectively collected by the first sound recording device 1 and the second sound recording device 2 after the combination, so as to obtain reverberated third audio data.

The first sound recording device 1 and the second sound recording device 2 in the sound recording system provided by the embodiment of the application respectively comprise first wireless communication modules, so that the first sound recording device 1 and the second sound recording device 2 can realize wireless data transmission through respective first wireless communication modules. The first wireless communication module may be a wifi module, a bluetooth module, or other conventional wireless communication modules.

Based on the setting of the first wireless communication module, when the first sound recording device 1 sends a control signal to the second sound recording device 2, the control signal can be sent through the first wireless communication module, and simultaneously, when the second sound recording device 2 sends the collected second audio data to the first sound recording device 1, the collected second audio data can be sent to the first sound recording device 1 through the first wireless communication module.

Due to the arrangement of the first wireless communication module, the first sound recording apparatus 1 and the second sound recording apparatus 2 can perform data transmission in a separated state. Therefore, the first recording apparatus 1 and the second recording apparatus 2 can be flexibly separated to different positions for audio data acquisition.

For example, in the same audio scene, the first sound recording device 1 and the second sound recording device 2 can be respectively placed at different positions, and audio data acquisition is carried out on the whole scene. After the second audio data collected by the second audio recording device 2 is sent to the first audio recording device 1, the first audio recording device 1 performs reverberation processing on the first audio data and the second audio recording data collected by itself, so that audio data with a higher signal-to-noise ratio corresponding to the audio scene can be obtained.

Or, the first recording device 1 and the second recording device 2 may perform audio data acquisition for different sound sources in the same audio scene, for example, in a conference scene, perform audio data acquisition for different speakers, then the second recording device 2 sends the acquired second audio data to the first recording device 1, the first recording device 1 stores the first audio data acquired by itself and the second audio data sent by the second recording device 2, respectively, to obtain a recording file corresponding to the conference, and in the recording file, since the audio data corresponding to the different speakers are stored respectively, the recording file can clearly distinguish recording contents of different speakers.

As an alternative implementation, when the first sound recording device 1 and the second sound recording device 2 are in a separated state, the two-character conversation mode can be operated. At this time, the first recording device 1 and the second recording device 2 respectively perform audio acquisition for one character, the directional microphones of the first recording device 1 and the second recording device 2 are operated, the microphone array is not operated, and the sound reception distance is controlled to be short-distance sound reception. Thus, the first recording device 1 and the second recording device 2 respectively perform audio acquisition only directionally aiming at one role, and the distinctiveness of the acquired audio content can be fully ensured.

Further, the first recording apparatus 1 and the second recording apparatus 2 in the embodiment of the present application further have audio output interfaces respectively for outputting audio signals.

Illustratively, the audio output interface may be any audio output interface, and the audio output interface may be connected to an audio playing device such as an earphone and a speaker to implement playing of an audio signal.

When the first recording device 1 and the second recording device 2 are separated and audio acquisition is performed respectively for different sound sources, for example, audio data acquisition is performed respectively for different speakers, the first recording device 1 also transmits the first audio data acquired by itself to the second recording device 2 in addition to the second recording device 2 transmitting the second audio data acquired by itself to the first recording device 1.

After receiving second audio data sent by the second recording device 2, the first recording device 1 plays the second audio data through an audio output interface; and after the second sound recording device 2 receives the first audio data sent by the first sound recording device 1, playing the first audio data through the audio output interface. The audio data transmission between the first sound recording device 1 and the second sound recording device 2 is realized through the first wireless communication module.

According to the audio data transmission and playing processing, the audio data collected by the first recording device 1 is played on the second recording device 2, the audio data collected by the second recording device 2 is played on the first recording device 1, and meanwhile, the first recording device 1 can also store the audio data collected by the first recording device 1 and the second recording device respectively. At this moment, the first recording device 1 and the second recording device 2 work in an interphone mode, and a wireless talkback function is achieved.

It can be understood that the connection terminal and the wireless communication module are simultaneously provided on the first sound recording apparatus 1 and the second sound recording apparatus 2, so that the first sound recording apparatus 1 and the second sound recording apparatus 2 can be used in combination or separately, and when the two are combined or separated, different sound pickup modes can be realized. The setting of the sound pickup mode of the first sound recording apparatus 1 and the second sound recording apparatus 2 may be set based on the state where the two are separated or combined.

For example, when the two are combined, the two may work in the microphone array omnidirectional sound pickup mode at the same time, and at this time, the first sound recording apparatus 1 performs reverberation processing on the audio data collected by the two; when the two are separated, the two can respectively carry out audio data acquisition for different sound sources, and at the moment, the first recording equipment 1 respectively stores the audio data acquired by the two.

As an alternative implementation manner, whether the first recording apparatus 1 and the second recording apparatus 2 process the separation state or the combination state may be determined according to whether the first connection terminal 104 of the first recording apparatus 1 and the second connection terminal 204 of the second recording apparatus 2 are in contact matching.

For example, the first sound recording apparatus 1 detects whether the first connection terminal 104 is in contact with the second connection terminal 204 of the second sound recording apparatus 2, and if so, it may be determined that the first sound recording apparatus 1 and the second sound recording apparatus 2 are in a combined state, and at this time, it may be set that the two sound recording apparatuses operate in an omnidirectional sound pickup mode or a directional sound pickup mode; if there is no contact, it can be determined that the first sound recording device 1 and the second sound recording device 2 are in a separated state, and at this time, it can be set that the two sound recording devices operate in the two-character talking mode or the wireless intercom mode as described above.

Further, referring to fig. 6, the sound recording system according to the embodiment of the present application further includes a control terminal 3, and a server 4 connected to the control terminal 3.

The first sound recording device 1 further comprises a second wireless communication module inside, and the second wireless communication module is used for being in wireless connection with the control terminal 3 to achieve wireless data transmission. The second wireless communication module can be a wifi module, a bluetooth module and the like.

The server 4 may be any type of server, for example, a server cabinet or a cloud server. The control terminal 3 and the server 4 are connected in communication through a wired or wireless link.

Based on the second wireless communication module, the first sound recording device 1 and the control terminal 3 establish a wireless channel, and the control terminal 3 can configure the sound pickup mode of the first sound recording device 1 through the wireless channel, and can receive the audio data sent by the first sound recording device 1 through the wireless channel and send the received audio data to the server 4. The audio data sent by the first recording device 1 may be data after reverberation obtained by performing reverberation processing on the audio data acquired by the first recording device 1 and the second recording device 2, or may be stored audio data acquired by the first recording device 1 and the second recording device 2 synchronously.

On the other hand, after the first sound recording apparatus 1 determines whether the first connection terminal 104 and the second connection terminal 204 of the second sound recording apparatus 2 are in contact fit by detecting whether the two are in the combined state or the separated state, the preferred sound pickup mode of the two in the current state can be determined according to the two states, and the determined preferred sound pickup mode is sent to the control terminal, so as to achieve the purpose of providing a reference for the sound pickup mode for the control terminal.

The server 4 receives the audio data transmitted from the control terminal 3, and performs editing processing on the received audio data, for example, voice recognition, text transcription, editing of recorded contents of different speakers in the same audio scene into a conversation document, and the like.

As an alternative embodiment, referring to fig. 7, the first sound recording apparatus 1 described above specifically includes:

the system comprises a microphone array 101, a directional microphone 102, a control key 103, a connecting terminal 104, a processor 105, a first wireless communication module 106, a second wireless communication module 107, a storage module 108, a charging management module 109, a lithium battery 110, a power management module 111, a USB interface 112 and an audio coding module 113.

The connection relationship of the above parts can be seen in fig. 7.

The two parts of the microphone array 101 and the directional microphone 102 can be recorded respectively, and 2 paths of audio data streams are output after the recorded audio data are processed by an algorithm.

The microphone array 101 is used for 360-degree all-around sound pickup in a conference scene, high-performance silicon microphones with good consistency are adopted, the self-adaptive distance reaches 5 meters, and the small conference scene is completely met. The microphone array comprises 2 microphones. As shown in figure 2, the microphones are arranged into a linear array, the pickup sampling frequency of more than or equal to 16K/24bit is adopted, and the algorithms of wave beam noise reduction, echo cancellation and the like are combined, so that the output recording data stream is more beneficial to improving the accuracy of voice recognition transcription.

The directional microphone 102 adopts a large-volume electret process microphone, has directional and remote sound pickup capabilities, adopts high sampling rate and high precision (such as more than or equal to 48KHZ and 24bit) sound pickup acquisition, and provides high-fidelity recorded and stored data by combining noise reduction and voice enhancement algorithms. The electret microphone is a single directional microphone and is placed at the top of the recording equipment to ensure directional sound pickup.

The audio encoding module 113 converts analog audio output by microphones (microphone array and directional microphone) into digital audio, and transmits all digital audio data to the processor 105 for performing related algorithm operation through digital interfaces such as I2S/TDM, SPI, and the like. In order to ensure the synchronism and timeliness of audio data, each path of analog audio needs an independent ADC (digital-to-analog conversion), for example, 2 microphone arrays +1 path of electrets, and 3 paths of ADCs are needed, and the 3 paths of ADCs can be completed by combining a single multi-path ADC.

The processor 105 is configured to receive audio data of the microphone array 101 and the directional microphone 102, and perform voice algorithm operations such as voice enhancement, data scheduling transmission, peripheral cooperative logic control, and interactive management of system applications.

The first wireless communication module 106 can enable the first sound recording apparatus 1 to perform data communication with the second sound recording apparatus 2, for example, seamlessly and timely transmitting the audio data stream collected by the second sound recording apparatus 2 to the first sound recording apparatus 1 in real time for identification, transcription, hearing back, retrieval, analysis and archiving. The second wireless communication module 107 enables the first sound recording device to communicate with a mobile phone or a server, and uploads an audio file for identification and transcription.

The control keys 103 can specifically comprise a power key function selection key and the like, have the functions of keys and indicator lamps, and can realize visual and diversified human-computer interaction interfaces.

The storage module 108 is used for storing system code and all audio data, wherein the stored audio data can be exported to other devices through the USB interface 112 or the wireless communication module.

The connection terminal 104 serves as a connection interface with the second recording apparatus 2, and is configured to be electrically connected to the second recording apparatus 2, determine whether the first recording apparatus 1 and the second recording apparatus 2 are in a separated or combined state, and enable connection of a power supply portion of a USB interface, so that when the USB interface of any one of the first recording apparatus 1 and the second recording apparatus 2 is powered on, the first recording apparatus 1 and the second recording apparatus 2 can both be charged at the same time.

The power management module 111, the lithium battery 110, and the charging management module 109 form a power supply management part of the system.

As shown in fig. 8, the second sound recording apparatus 2 includes:

the system comprises a microphone array 201, a directional microphone 202, a control key 203, a connecting terminal 204, a processor 205, a first wireless communication module 206, a storage module 207, a charging management module 208, a lithium battery 209, a power management module 210, a USB interface 211 and an audio coding module 212.

The connection relationship between the above-mentioned parts can be seen in fig. 8, and the functions of the parts are the same as those of the first recording apparatus 1, as described in the above-mentioned embodiment.

It should be noted that, referring to fig. 2, the connection terminals of the first recording apparatus 1 and the second recording apparatus 2 are respectively composed of three contact terminals, namely, a USB +5V (USB positive electrode) terminal, a USB ground terminal, and a single-wire interface terminal.

When the first recording apparatus 1 and the second recording apparatus 2 are combined together so that the connection terminals thereof are in contact fit, the USB +5V terminal and the USB gnd terminal thereof are connected, respectively, and at this time, when the USB interface of either recording apparatus is energized, the two recording apparatuses can be charged, respectively.

When the connecting terminals of the first recording device 1 and the second recording device 2 are contacted, the single-wire interface terminals of the first recording device and the second recording device are contacted and conducted, and data transmission can be realized through the single-wire interface.

For example, the embodiment of the present application further provides a connecting structure for the first sound recording apparatus 1 and the second sound recording apparatus 2, and the connecting structures of the first sound recording apparatus 1 and the second sound recording apparatus 2 are mutually matched, so that when the connecting structures of the first sound recording apparatus 1 and the second sound recording apparatus 2 are combined, the first sound recording apparatus 1 and the second sound recording apparatus 2 can be mutually connected to be firmly combined.

For example, the connection structure provided with the first recording apparatus 1 and the second recording apparatus 2 may be a snap structure, a slide groove structure, or the like.

Further, the installation positions of the connection structures of the first sound recording device 1 and the second sound recording device 2 are set, so that when the connection structures of the first sound recording device 1 and the second sound recording device 2 are connected in a matching manner, the first connection terminal 104 of the first sound recording device 1 is in contact fit with the second connection terminal 204 of the second sound recording device 2.

As an exemplary implementation manner, the present embodiment utilizes a magnetic structure as a connection structure between the first sound recording apparatus 1 and the second sound recording apparatus 2. For example, the magnetic blocks with matched magnetism are respectively arranged on the first recording device 1 and the second recording device 2, so that when the first recording device 1 and the second recording device 2 are close to each other, the two devices are automatically attracted together.

It is assumed that the first connection terminal 104 of the first sound recording apparatus 1 is disposed on the first side wall of the first sound recording apparatus 1, and the second connection terminal 204 of the second sound recording apparatus 2 is disposed on the second side wall of the second sound recording apparatus 2. The embodiment of the present invention installs the first magnetic structure 114 inside the first side wall of the first recording apparatus 1 and installs the second magnetic structure 214 inside the second side wall of the second recording apparatus 2. And the magnetic properties of the first magnetic structure 114 and the second magnetic structure 214 are made opposite. The first magnetic structure 114 and the second magnetic structure 214 are respectively composed of a set number of magnetic blocks, in the embodiment of the present application, the first magnetic structure 114 is respectively composed of two magnetic blocks, and the second magnetic structure 214 is composed of two magnetic blocks.

Based on the above arrangement, the positions of the first magnetic structure 114 and the second magnetic structure 214 are adjusted, so that when the first sidewall of the first recording apparatus 1 is attached to the second sidewall of the second recording apparatus 2, the first magnetic structure 114 and the second magnetic structure 214 attract each other, and meanwhile, the first connection terminal 104 on the first sidewall of the first recording apparatus 1 is in contact fit with the second connection terminal 204 on the second sidewall of the second recording apparatus 2.

According to the above arrangement of the embodiment of the present application, when the side walls of the first recording apparatus 1 and the second recording apparatus 2, which are provided with the connection terminals, are close to each other, the first recording apparatus and the second recording apparatus can be automatically attracted, and simultaneously, the contact terminals of the first recording apparatus and the second recording apparatus are in contact fit.

Further, referring to fig. 9, as a preferred implementation manner, in the embodiment of the present application, the second connection terminal 204 of the second sound recording apparatus 2 is embedded in the second side wall of the second sound recording apparatus 2, and a through hole corresponding to the position of the second connection terminal 204 is disposed on the second side wall. Meanwhile, the second magnetic structure 214 inside the second sound recording apparatus 2 is fixedly installed inside the second sidewall.

The first connection terminal 104 and the first magnetic structure 114 are disposed on a connection board 115 inside the second recording apparatus 1, the connection board 115 is disposed on an inner surface of the first sidewall through an elastic member 116 (e.g., a spring, a leaf spring, etc.), such that the connection board 115 can be close to the first sidewall or away from the first sidewall when the elastic member 116 is compressed or relaxed.

Through holes corresponding to the positions of the first connection terminals 104 on the connection plate 115 are provided on the first side wall. Simultaneously, adjust position and size etc. to each part for based on the setting after the adjustment, reach following effect:

for example, as shown in fig. 9, when the first side wall is separated from the second side wall, that is, when the first recording apparatus 1 is far away from the second recording apparatus 2, the first magnetic structure 114 is far away from the second magnetic structure 115, and the magnetic force therebetween is small, and under the elastic force of the elastic member 116, the connection plate 115 is far away from the inner surface of the first side wall, and the first connection terminal 104 is disposed in the inner space of the first recording apparatus 1.

Referring to fig. 10, when the first side wall is attached to the second side wall, that is, the first recording apparatus 1 and the second recording apparatus 2 are combined together, and the through hole on the first side wall is aligned with the through hole on the second side wall, the first magnetic structure 114 is closer to the second magnetic structure 214, and the two tend to attract each other due to the magnetic force. Under the action of the magnetic force, the connecting plate 115 is pressed close to the inner surface of the first side wall, so that the first connecting terminal 104 on the connecting plate 115 passes through the through hole on the first side wall and the through hole on the second side wall and is in contact fit with the second connecting terminal 204 embedded in the second side wall.

Through the setting, the connecting terminals of the first recording device 1 and the second recording device 2 are automatically hidden when the first recording device and the second recording device are separated, on one hand, the appearance of the first recording device and the second recording device in a separated state can be ensured to be neat, and on the other hand, the connecting terminals can be prevented from leaking outwards to cause short circuit or other faults.

In another embodiment, the recording system further includes a recording unit, which is configured to perform recording on the recording medium, and the recording unit is configured to perform recording on the recording medium.

Referring to fig. 11, the recording method includes:

s101, acquiring audio data by first recording equipment to obtain first audio data, and controlling second recording equipment to synchronously acquire second audio data;

s102, the second recording device synchronously acquires audio data under the control of the first recording device to obtain second audio data, and the second audio data are sent to the first recording device;

s103, the first sound recording device performs reverberation processing on the first audio data and the second audio data to obtain reverberated third audio data, or stores the first audio data and the second audio data respectively.

The recording method provided by the embodiment of the application is applied to a recording system consisting of a first recording device and a second recording device, wherein during recording, the first recording device acquires audio data to obtain first audio data, and controls the second recording device to synchronously acquire second audio data; the second recording equipment synchronously acquires audio data under the control of the first recording equipment to obtain second audio data, and sends the second audio data to the first recording equipment; and the first sound recording equipment performs reverberation processing on the first audio data and the second audio data to obtain reverberated third audio data, or stores the first audio data and the second audio data respectively. The recording method can realize synchronous and independent audio acquisition of multiple speakers by means of multiple recording devices of the recording system, so that the voice recording task of multiple speakers in a scene of multiple speakers can be performed.

Meanwhile, the recording method can record the audio frequency of the same speaker from multiple dimensions by means of multiple recording devices, and then perform reverberation processing on the audio frequency data recorded from the multiple dimensions, so that the signal to noise ratio of the recording file can be enhanced, and the recording quality can be improved.

As an optional implementation manner, the first sound recording device includes a first connection terminal, and the second sound recording device includes a second connection terminal; when the first connection terminal and the second connection terminal are in contact fit, the sending the second audio data to the first recording apparatus includes:

As an optional implementation manner, the first sound recording device and the second sound recording device respectively include a first wireless communication module;

As an optional implementation manner, the method further includes:

Specifically, the specific processing contents of each processing step of the recording method may be described in the function descriptions of each part in each embodiment of the recording system, and in addition, the recording method may further include other processing contents corresponding to the functions of each part of the recording system, and may be specifically described in the embodiment of the recording system, which is not repeated here.

While, for purposes of simplicity of explanation, the foregoing method embodiments have been described as a series of acts or combination of acts, it will be appreciated by those skilled in the art that the present application is not limited by the order of acts or acts described, as some steps may occur in other orders or concurrently with other steps in accordance with the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.

It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other. For the device-like embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The steps in the method of each embodiment of the present application may be sequentially adjusted, combined, and deleted according to actual needs, and technical features described in each embodiment may be replaced or combined.

The modules and sub-modules in the device and the terminal in the embodiments of the application can be combined, divided and deleted according to actual needs.

In the several embodiments provided in the present application, it should be understood that the disclosed terminal, apparatus and method may be implemented in other manners. For example, the above-described terminal embodiments are merely illustrative, and for example, the division of a module or a sub-module is only one logical division, and there may be other divisions when the terminal is actually implemented, for example, a plurality of sub-modules or modules may be combined or integrated into another module, or some features may be omitted or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.

The modules or sub-modules described as separate parts may or may not be physically separate, and parts that are modules or sub-modules may or may not be physical modules or sub-modules, may be located in one place, or may be distributed over a plurality of network modules or sub-modules. Some or all of the modules or sub-modules can be selected according to actual needs to achieve the purpose of the solution of the present embodiment.

In addition, each functional module or sub-module in the embodiments of the present application may be integrated into one processing module, or each module or sub-module may exist alone physically, or two or more modules or sub-modules may be integrated into one module. The integrated modules or sub-modules may be implemented in the form of hardware, or may be implemented in the form of software functional modules or sub-modules.

Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software unit executed by a processor, or in a combination of the two. The software cells may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sound recording system, comprising:

a first recording device and a second recording device;

2. The audio recording system of claim 1, wherein said first audio recording device includes a first connection terminal and said second audio recording device includes a second connection terminal; when the first connecting terminal and the second connecting terminal are in contact fit, the first recording device and the second recording device are electrically connected and connected through the connecting terminals in contact fit.

3. The audio recording system of claim 2, wherein the second audio recording device transmits the second audio data to the first audio recording device when the first connection terminal and the second connection terminal are in contact mating, comprising:

4. The sound recording system of claim 3, wherein the first sound recording device performs reverberation processing on the first audio data and the second audio data to obtain reverberated third audio data, and the reverberation processing comprises:

5. The audio recording system of claim 1, wherein the first audio recording device and the second audio recording device each comprise a first wireless communication module;

6. The audio recording system of claim 5, wherein said first audio recording device is further configured to:

the second sound recording device is further configured to:

7. The audio recording system of claim 2, wherein said first audio recording device and said second audio recording device include mating connection structures, and wherein said first connection terminal and said second connection terminal are in contact engagement when said first audio recording device and said second audio recording device are in engagement.

8. The audio recording system of claim 7, wherein said coupling structure comprises first and second magnetic structures of opposite magnetic polarity;

9. The audio recording system according to claim 8, wherein the second connecting terminal is embedded in a second side wall of the second audio recording device, and a through hole corresponding to the second connecting terminal is provided in the second side wall;

10. The audio recording system of claim 2, wherein said first audio recording device is further configured to:

11. The sound recording system of claim 1, further comprising:

12. The audio recording system of claim 11, wherein the first audio recording device acquires audio data, obtains first audio data, and controls the second audio recording device to acquire second audio data synchronously, including:

13. A sound recording method applied to the sound recording system according to any one of claims 1 to 12, the method comprising:

14. The method of claim 13, wherein the first sound recording device includes a first connection terminal and the second sound recording device includes a second connection terminal; when the first connection terminal and the second connection terminal are in contact fit, the sending the second audio data to the first recording apparatus includes:

15. The method of claim 13, wherein the first audio recording device and the second audio recording device each comprise a first wireless communication module;

16. The method of claim 15, further comprising: