Pickup method and device of microphone array
阅读说明：本技术 麦克风阵列的拾音方法及装置 (Pickup method and device of microphone array ) 是由 李霄寒 于 2019-09-25 设计创作，主要内容包括：本发明是关于麦克风阵列的拾音方法及装置。该方法包括：接收输入的拾音模式选择操作；确定所述拾音模式选择操作对应的目标拾音模式；基于所述目标拾音模式进行拾音。通过本发明的技术方案,可确保具有多个麦克风的麦克风阵列能够按照用户意愿正确地拾取想要录制的声音,避免错误录制音源。(The invention relates to a sound pickup method and a sound pickup device of a microphone array. The method comprises the following steps: receiving an input pickup mode selection operation; determining a target sound pickup mode corresponding to the sound pickup mode selection operation; and carrying out sound pickup based on the target sound pickup mode. By the technical scheme of the invention, the microphone array with a plurality of microphones can be ensured to correctly pick up the sound to be recorded according to the desire of a user, and the wrong recording of a sound source is avoided.)
1. A method for picking up sound from a microphone array, comprising:
receiving an input pickup mode selection operation;
determining a target sound pickup mode corresponding to the sound pickup mode selection operation;
and carrying out sound pickup based on the target sound pickup mode.
2. The method of claim 1,
the picking up sound based on the target sound pickup mode includes:
judging whether the current pickup mode is the target pickup mode or not;
when the judgment result is yes, sound pickup is carried out based on the target sound pickup mode;
and when the judgment result is negative, switching the current sound pickup mode to the target sound pickup mode, and carrying out sound pickup based on the target sound pickup mode.
3. The method of claim 1,
the target pickup mode comprises a directional pickup mode or an omnidirectional pickup mode; the microphone array is provided with N microphones,
the omnidirectional pickup pattern is used to pick up received voice of the N microphones,
the directional pickup mode is used for picking up voice received by microphones distributed in a specified direction in the N microphones, the specified direction corresponds to the pickup mode selection operation, and N is a positive integer greater than or equal to 2.
4. The method of claim 1, further comprising:
determining an indication signal corresponding to the target pickup mode;
and prompting a user according to the indication signal, wherein the indication signal comprises at least one of an indicator light signal and a sound signal.
5. The method according to any one of claims 1 to 4,
the microphone array is provided with: a touch button;
the pickup mode selecting operation includes: a rotation or pressing operation for the touch button.
6. A pickup apparatus for a microphone array for a device having the microphone array, comprising:
the receiving module is used for receiving input pickup mode selection operation;
a first determining module, configured to determine a target sound pickup mode corresponding to the sound pickup mode selecting operation;
and the pickup module is used for picking up based on the target pickup mode.
7. The apparatus of claim 6,
the pickup module includes:
the judging submodule is used for judging whether the current pickup mode is the target pickup mode or not;
the sound pickup sub-module is used for carrying out sound pickup based on the target sound pickup mode when the judgment result is yes;
and the processing submodule is used for switching the current sound pickup mode to the target sound pickup mode and carrying out sound pickup based on the target sound pickup mode when the judgment result is negative.
8. The apparatus of claim 6,
the target pickup mode comprises a directional pickup mode or an omnidirectional pickup mode; the microphone array is provided with N microphones,
the omnidirectional pickup pattern is used to pick up received voice of the N microphones,
the directional pickup mode is used for picking up voice received by microphones distributed in a specified direction in the N microphones, the specified direction corresponds to the pickup mode selection operation, and N is a positive integer greater than or equal to 2.
9. The apparatus of claim 6, further comprising:
the second determination module is used for determining an indication signal corresponding to the target pickup mode;
and the prompting module is used for prompting a user according to the indicating signal, and the indicating signal comprises at least one of an indicating lamp signal and a sound signal.
10. The apparatus according to any one of claims 6 to 9,
the microphone array is provided with: a touch button;
the pickup mode selecting operation includes: a rotation or pressing operation for the touch button.
Technical Field
The invention relates to the technical field of voice processing, in particular to a pickup method and a pickup device of a microphone array.
Background
At present, when a plurality of sound sources exist, a user may want to record all the sound sources (for example, a reporter interviews one by one), at this time, a recording direction is generally pointed to the sound source direction through an adaptive algorithm and continuously and adaptively adjusts when the sound source direction changes, so that all the sound sources are recorded, but sometimes the user may want to record only one person's sound (for example, record the lecture of a teacher), at this time, the adaptive algorithm is not applicable, and therefore, for a microphone array having a plurality of microphones with different positions, how to correctly pick up the sound to be recorded according to the desire of the user becomes a problem to be solved urgently.
Disclosure of Invention
The embodiment of the invention provides a pickup method and a pickup device of a microphone array. The technical scheme is as follows:
according to a first aspect of the embodiments of the present invention, there is provided a sound pickup method for a microphone array, including:
receiving an input pickup mode selection operation;
determining a target sound pickup mode corresponding to the sound pickup mode selection operation;
and carrying out sound pickup based on the target sound pickup mode.
In one embodiment, the picking up sound based on the target sound pickup mode includes:
judging whether the current pickup mode is the target pickup mode or not;
when the judgment result is yes, sound pickup is carried out based on the target sound pickup mode;
and when the judgment result is negative, switching the current sound pickup mode to the target sound pickup mode, and carrying out sound pickup based on the target sound pickup mode.
In one embodiment, the target pickup mode comprises a directional pickup mode or an omnidirectional pickup mode; the microphone array is provided with N microphones,
the omnidirectional pickup pattern is used to pick up received voice of the N microphones,
the directional pickup mode is used for picking up voice received by microphones distributed in a specified direction in the N microphones, the specified direction corresponds to the pickup mode selection operation, and N is a positive integer greater than or equal to 2.
In one embodiment, the method further comprises:
determining an indication signal corresponding to the target pickup mode;
and prompting a user according to the indication signal, wherein the indication signal comprises at least one of an indicator light signal and a sound signal.
In one embodiment, the microphone array is provided with: a touch button;
the pickup mode selecting operation includes: a rotation or pressing operation for the touch button.
According to a second aspect of the embodiments of the present invention, there is provided a sound pickup apparatus of a microphone array, including:
the receiving module is used for receiving input pickup mode selection operation;
a first determining module, configured to determine a target sound pickup mode corresponding to the sound pickup mode selecting operation;
and the pickup module is used for picking up based on the target pickup mode.
In one embodiment, the pickup module includes:
the judging submodule is used for judging whether the current pickup mode is the target pickup mode or not;
the sound pickup sub-module is used for carrying out sound pickup based on the target sound pickup mode when the judgment result is yes;
and the processing submodule is used for switching the current sound pickup mode to the target sound pickup mode and carrying out sound pickup based on the target sound pickup mode when the judgment result is negative.
In one embodiment, the target pickup mode comprises a directional pickup mode or an omnidirectional pickup mode; the microphone array is provided with N microphones,
the omnidirectional pickup pattern is used to pick up received voice of the N microphones,
the directional pickup mode is used for picking up voice received by microphones distributed in a specified direction in the N microphones, the specified direction corresponds to the pickup mode selection operation, and N is a positive integer greater than or equal to 2.
In one embodiment, the apparatus further comprises:
the second determination module is used for determining an indication signal corresponding to the target pickup mode;
and the prompting module is used for prompting a user according to the indicating signal, and the indicating signal comprises at least one of an indicating lamp signal and a sound signal.
In one embodiment, the microphone array is provided with: a touch button;
the pickup mode selecting operation includes: a rotation or pressing operation for the touch button.
The technical scheme provided by the embodiment of the invention can have the following beneficial effects:
by receiving the sound pickup mode selection operation, it is possible to specify whether the user desires to pick up an omnidirectional sound source or a sound source in a certain direction, and thus, it is possible to specify a target sound pickup mode corresponding to the sound pickup mode selection operation and to pick up sound in accordance with the target sound pickup mode, thereby ensuring that a microphone array having a plurality of microphones can correctly pick up sound to be recorded as intended by the user and preventing erroneous recording of a sound source.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a flow chart illustrating a method of picking up sound by a microphone array according to an exemplary embodiment.
Fig. 2 is a flow chart illustrating another method of picking up sound by a microphone array according to an example embodiment.
Fig. 3 is a schematic diagram illustrating a microphone array structure according to an exemplary embodiment.
Fig. 4 is a flowchart illustrating a further method of picking up sound by a microphone array according to an exemplary embodiment.
Fig. 5 is a block diagram illustrating a sound pickup apparatus of a microphone array according to an exemplary embodiment.
Fig. 6 is a block diagram illustrating another pickup arrangement for a microphone array according to an example embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
In order to solve the above technical problem, an embodiment of the present invention provides a sound collecting method for a microphone array, which may be used in a sound collecting program, system or device for the microphone array, and an implementation subject of the method may be a terminal or a server, and a plurality of microphones are disposed on the microphone array, as shown in fig. 1, the method includes steps S101 to S103:
in step S101, an input sound pickup mode selection operation is received;
in step S102, a target sound pickup mode corresponding to the sound pickup mode selection operation is determined;
the target sound-collecting pattern is used for indicating whether sound sources in different directions collected by all microphones in the microphone array or sound sources collected by microphones located in a certain direction in the microphone array are collected.
In step S103, sound is collected based on the target sound collection pattern.
By receiving the sound pickup mode selection operation, it is possible to specify whether the user desires to pick up an omnidirectional sound source or a sound source in a certain direction, and thus, it is possible to specify a target sound pickup mode corresponding to the sound pickup mode selection operation and to pick up sound in accordance with the target sound pickup mode, thereby ensuring that a microphone array having a plurality of microphones can correctly pick up sound to be recorded as intended by the user and preventing erroneous recording of a sound source.
As shown in fig. 2, in an embodiment, the picking up sound based on the target sound pickup mode includes:
in step S201, it is determined whether the current sound pickup mode is the target sound pickup mode;
in step S202, when the determination result is yes, sound is picked up based on the target sound pickup mode;
in step S203, when the determination result is negative, the current sound pickup mode is switched to the target sound pickup mode, and sound pickup is performed based on the target sound pickup mode.
When the current sound pickup mode is the target sound pickup mode, the sound pickup mode of the microphone array is the sound pickup mode expected by the user, so that the sound pickup operation can be carried out in time by directly utilizing the target sound pickup mode; when the current sound pickup mode is not the target sound pickup mode, the current sound pickup mode of the microphone array is not the sound pickup mode expected by the user, so that the current sound pickup mode can be automatically switched to the target sound pickup mode to perform sound pickup operation by the target sound pickup mode, and sound pickup operation can be performed according to the sound pickup mode expected by the user by the sound pickup mode switching operation to pick up the sound source expected to be recorded by the user.
In one embodiment, the target pickup mode comprises a directional pickup mode or an omnidirectional pickup mode; the microphone array is provided with N microphones, and a schematic structural diagram of the microphone array is shown in fig. 3.
As shown in fig. 3, the present invention adds a rotatable disk (rotatable steering wheel) to the fixed chassis of the circular microphone array, and adds a knob at a position above the disk, and the knob is fixed relative to the disk. The knob responds to the poking action of a user to drive the disc to rotate and responds to the pressing action of the user. With the microphone array as shown in fig. 3, the steps as shown in fig. 4 can be performed:
when a user needs to record all the sound sources of the multi-target sound source, the user presses the knob once, and at the moment, the device displays that the device is in an omnidirectional self-adaptive recording state by using lamplight. The device then uses an adaptive algorithm to record the sound from multiple sources.
When a user needs to record the sound of the sound source in a specific direction, the user presses the button once, and at the moment, the device displays the recording state in the specific direction by using lamplight and displays the sound pickup direction by using the lamplight. Then the user rotates the steering wheel by the control knob, so that the pickup direction is directed to the sound source direction, and the sound in the direction can be picked up by a strong signal-to-noise ratio.
Omnidirectional sound pickup in fig. 4 refers to an omnidirectional sound pickup mode, and directional sound pickup refers to a directional sound pickup mode.
The omnidirectional pickup mode is used for picking up received voice of the N microphones, that is, picking up voice in each direction within a range of 360 °.
The directional sound pickup mode is used for picking up the voice received by the microphones distributed in the specified direction (namely picking up the voice in the specific direction), wherein the specified direction corresponds to the sound pickup mode selection operation, and N is a positive integer greater than or equal to 2. N may be 7, etc.
The rotatable steering wheel may be integral with the knob, the knob turning with the user when turning the rotatable steering wheel. The above-mentioned specified direction can be determined by calculating the rotation angle of the rotatable steering wheel.
After the designated direction is determined, directional sound pickup can be realized by increasing the gain of the sound source collected by the microphone in the designated direction and suppressing the gain of the sound source collected by the microphone in the designated direction.
In one embodiment, the method further comprises:
determining an indication signal corresponding to the target pickup mode;
and prompting a user according to the indication signal, wherein the indication signal comprises at least one of an indicator light signal and a sound signal.
After the target sound pickup mode is determined, a corresponding indication signal can be determined, then the user is prompted according to the indication signal, and the user is reminded whether the target sound pickup mode is used correctly or not.
The indication signal includes, but is not limited to, an indicator light signal (for example, colors of indicator lights corresponding to different sound pickup modes may be different), a sound signal (for example, contents of sound signals corresponding to different sound pickup modes may be different), and the like, and may also be a text signal, and the like.
When the indicator signal is an indicator light signal, the indicator light signal can be emitted in a specific direction in the directional pickup mode, and the indicator light signal can be emitted in all directions (i.e., the entire clockwise direction or the counterclockwise direction) of the rotatable steering wheel in the omnidirectional pickup mode.
In one embodiment, the microphone array is provided with: a touch button;
the pickup mode selecting operation includes: a rotation or pressing operation for the touch button.
The rotation may be clockwise or counterclockwise and the pressing may be a pressing for a predetermined length of time.
The microphone array is also provided with a touch button, and the touch button is added to enable a user to trigger the microphone array to determine a specific sound pickup mode through manual operation of the touch button so as to correctly perform sound pickup operation.
Finally, it is clear that: the above embodiments can be freely combined by those skilled in the art according to actual needs.
Corresponding to the sound pickup method of the microphone array provided by the embodiment of the present invention, the embodiment of the present invention further provides a sound pickup apparatus of the microphone array, as shown in fig. 5, the apparatus includes:
a
a first determining
and a
As shown in fig. 6, in one embodiment, the
a judgment sub-module 5031 configured to judge whether a current sound pickup mode is the target sound pickup mode;
a sound pickup sub-module 5032 configured to, when the determination result is yes, perform sound pickup based on the target sound pickup mode;
a
In one embodiment, the target pickup mode comprises a directional pickup mode or an omnidirectional pickup mode; the microphone array is provided with N microphones,
the omnidirectional pickup pattern is used to pick up received voice of the N microphones,
the directional pickup mode is used for picking up voice received by microphones distributed in a specified direction in the N microphones, the specified direction corresponds to the pickup mode selection operation, and N is a positive integer greater than or equal to 2.
In one embodiment, the apparatus further comprises:
the second determination module is used for determining an indication signal corresponding to the target pickup mode;
and the prompting module is used for prompting a user according to the indicating signal, and the indicating signal comprises at least one of an indicating lamp signal and a sound signal.
In one embodiment, the microphone array is provided with: a touch button;
the pickup mode selecting operation includes: a rotation or pressing operation for the touch button. Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.