A desktop intelligent multi-directional sound pickup method and system

Abstract

The application provides a desktop intelligent multi-direction sound pickup method and system, relates to the technical field of sound pickup, and comprises the following steps: obtaining a starting trigger signal of a microphone; obtaining a sound source direction parameter based on the starting trigger signal; determining a sound pickup microphone serial number and a corresponding sound source range direction parameter according to the sound source direction parameter and the sound pickup microphone relationship; the sound source range direction parameter comprises a sound source range direction distance and a sound source range direction angle; analyzing the sound source range direction parameter and the sound pickup microphone serial number to determine a horizontal adjustment parameter of the microphone; controlling the microphone to perform horizontal adjustment according to the horizontal adjustment parameter and the sound pickup microphone serial number; obtaining a sound pickup range image based on the sound pickup microphone serial number; analyzing the sound source range direction parameter and the sound pickup range image to determine a vertical adjustment parameter of the microphone; and controlling the microphone to perform vertical adjustment according to the vertical adjustment parameter and the sound pickup microphone serial number. The application has the effect of guaranteeing good sound pickup effect of the microphone.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sound pickup, in particular to a desktop intelligent multi-direction sound pickup method and system. BACKGROUND

[0002] Multi-direction sound pickup generally refers to the ability of an audio device (such as a microphone) to capture sound from multiple directions, which is widely used in conference systems, voice recognition, smart speakers, recording devices and other fields, with the purpose of improving voice collection effect in complex environments.

[0003] In related technologies, multi-direction sound pickup usually uses a microphone array, for example, when holding an offline meeting, a microphone is placed on each seat, and all microphones are connected to a central audio processing unit, which controls the voice collection of the participants, and then performs gain control, echo cancellation, and automatic mixing, and finally outputs the sound through a speaker device.

[0004] For the related technologies in the above, the microphone placed on each seat collects the voice of the participants, but due to the different heights and postures of the participants, the microphone on the seat cannot accurately aim at the participants, resulting in poor sound pickup effect of the microphone, which still has room for improvement. SUMMARY

[0005] In order to ensure good sound pickup effect of the microphone, the present application provides a desktop intelligent multi-direction sound pickup method and system.

[0006] In a first aspect, the present application provides a desktop intelligent multi-direction sound pickup method, which adopts the following technical solution:

[0007] A desktop intelligent multi-direction sound pickup method, comprising:

[0008] obtaining a start trigger signal of a preset microphone;

[0009] obtaining a sound source direction parameter based on the start trigger signal;

[0010] determining a sound pickup microphone serial number and a corresponding sound source range direction parameter according to the sound source direction parameter and a preset sound pickup microphone relationship; the sound source range direction parameter includes a sound source range direction distance and a sound source range direction angle;

[0011] analyzing the sound source range direction parameter and the sound pickup microphone serial number to determine a horizontal adjustment parameter of the microphone;

[0012] controlling the microphone to perform horizontal adjustment according to the horizontal adjustment parameter and the sound pickup microphone serial number;

[0013] obtaining a sound pickup range image based on the sound pickup microphone serial number;

[0014] analyzing the sound source range azimuth parameter and the pickup range image to determine a vertical adjustment parameter of the microphone;

[0015] controlling the microphone to make vertical adjustment according to the vertical adjustment parameter and the pickup microphone serial number.

[0016] By adopting the above technical solution, the pickup microphone serial number and the corresponding sound source range azimuth parameter are determined according to the sound source azimuth parameter and the pickup microphone relationship, the horizontal adjustment parameter is determined after analyzing the sound source range azimuth parameter and the pickup microphone serial number, the vertical adjustment parameter is determined after analyzing the sound source range azimuth parameter and the pickup range image, and the microphone corresponding to the pickup microphone serial number is adjusted in the horizontal and vertical directions according to the horizontal adjustment parameter and the vertical adjustment parameter, so that the microphone can accurately aim at the person, thereby ensuring the good pickup effect of the microphone.

[0017] Optionally, the step of analyzing the sound source range azimuth parameter and the pickup microphone serial number to determine the horizontal adjustment parameter of the microphone comprises:

[0018] analyzing the sound source range azimuth parameter to determine the total number of range sound sources;

[0019] judging whether the total number of range sound sources meets the requirement of a single sound source number;

[0020] if yes, determining a first azimuth angle processing parameter according to the pickup microphone serial number and a preset microphone angle processing relationship;

[0021] analyzing the sound source range azimuth parameter, the pickup microphone serial number and the first azimuth angle processing parameter to determine the horizontal adjustment parameter of the microphone;

[0022] if no, obtaining range sound source speech content and pickup speech content based on the sound source range azimuth parameter;

[0023] analyzing the sound source range azimuth parameter, the pickup microphone serial number, the range sound source speech content and the pickup speech content to determine the horizontal adjustment parameter of the microphone.

[0024] By adopting the above technical solution, when it is determined that the total number of range sound sources meets the requirement of a single sound source number, the first azimuth angle processing parameter is determined according to the pickup microphone serial number and the microphone angle processing relationship, and then the horizontal adjustment parameter is determined after analyzing the first azimuth angle processing parameter, the sound source range azimuth parameter and the pickup microphone serial number; when it does not meet the requirement, the horizontal adjustment parameter is determined according to the sound source range azimuth parameter, the pickup microphone serial number, the range sound source speech content and the pickup speech content, so that the microphone can cope with the situation of single person and multiple persons speaking, thereby ensuring the pickup effect of the microphone.

[0025] Optionally, the step of analyzing the sound source range azimuth parameter, the pickup microphone serial number and the first azimuth processing parameter to determine the horizontal adjustment parameter of the microphone comprises:

[0026] determining the microphone azimuth angle and the microphone horizontal distance according to the pickup microphone serial number and the preset microphone azimuth relationship;

[0027] analyzing the microphone azimuth angle and the sound source range azimuth angle to determine the horizontal adjustment direction;

[0028] analyzing the sound source range azimuth angle and the first azimuth processing parameter to determine the processing azimuth angle;

[0029] analyzing the sound source range azimuth distance and the processing azimuth angle to determine the sound source horizontal distance;

[0030] judging whether the pickup microphone serial number meets the requirement of the preset central axis microphone serial number;

[0031] if yes, associating the horizontal adjustment direction and the sound source horizontal distance to generate the horizontal adjustment parameter of the microphone;

[0032] if no, analyzing the microphone azimuth angle, the sound source range azimuth angle, the sound source horizontal distance and the microphone horizontal distance to determine the horizontal adjustment distance, and associating the horizontal adjustment direction and the horizontal adjustment distance to generate the horizontal adjustment parameter of the microphone.

[0033] By using the above technical solution, the horizontal adjustment direction is determined according to the microphone azimuth angle and the sound source range azimuth angle, the sound source horizontal distance is determined according to the sound source range azimuth distance and the processing azimuth angle, when the pickup microphone serial number meets the requirement of the central axis microphone serial number, the horizontal adjustment parameter is directly obtained by associating the horizontal adjustment direction and the sound source horizontal distance, and when the pickup microphone serial number does not meet the requirement of the central axis microphone serial number, the horizontal adjustment distance is determined by analyzing the microphone azimuth angle, the sound source range azimuth angle, the sound source horizontal distance and the microphone horizontal distance, and the horizontal adjustment parameter is obtained by associating the horizontal adjustment distance and the horizontal adjustment direction, thereby improving the convenience and reliability of determining the horizontal adjustment parameter.

[0034] Optionally, the step of analyzing the sound source range azimuth parameter, the pickup microphone serial number, the range sound source speech content and the pickup speech content to determine the horizontal adjustment parameter of the microphone comprises:

[0035] analyzing the sound source range azimuth parameter, the corresponding range sound source speech content and the pickup speech content to determine the effective sound source azimuth parameter;

[0036] analyzing the effective sound source azimuth parameter to determine the maximum sound source azimuth parameter and the minimum sound source azimuth parameter;

[0037] analyzing the maximum sound source orientation parameter, the minimum sound source orientation parameter and the pickup microphone serial number to determine the maximum adjustment parameter and the minimum adjustment parameter;

[0038] analyzing the maximum adjustment parameter and the minimum adjustment parameter to determine the horizontal adjustment parameter of the microphone.

[0039] By using the above technical solution, the effective sound source orientation parameter is determined through analyzing the sound source range orientation parameter, the corresponding range sound source speech content and the pickup speech content, and the horizontal adjustment parameter is determined by using the maximum sound source orientation parameter and the minimum sound source orientation parameter in the effective sound source orientation parameter, which on one hand ensures that the basis for the horizontal adjustment of the microphone is the effective sound source in the range, and on the other hand ensures that the microphone can effectively pickup all sound sources, thereby ensuring the pickup effect of the microphone.

[0040] Optionally, the step of analyzing the maximum sound source orientation parameter, the minimum sound source orientation parameter and the pickup microphone serial number to determine the maximum adjustment parameter and the minimum adjustment parameter comprises:

[0041] determining a second azimuth processing parameter according to the pickup microphone serial number and a preset microphone angle processing relationship;

[0042] analyzing the maximum sound source orientation parameter, the pickup microphone serial number and the second azimuth processing parameter to determine the maximum adjustment parameter;

[0043] analyzing the minimum sound source orientation parameter, the pickup microphone serial number and the second azimuth processing parameter to determine the minimum adjustment parameter.

[0044] By using the above technical solution, the maximum adjustment parameter is obtained by analyzing the maximum sound source orientation parameter, the pickup microphone serial number and the second azimuth processing parameter, and the minimum adjustment parameter is obtained by analyzing the minimum sound source orientation parameter, the pickup microphone serial number and the second azimuth processing parameter, thereby improving the convenience and reliability of determining the maximum adjustment parameter and the minimum adjustment parameter.

[0045] Optionally, the step of analyzing the sound source range orientation parameter and the pickup range image to determine the vertical adjustment parameter of the microphone comprises:

[0046] obtaining an effective orientation parameter based on the sound source range orientation parameter;

[0047] analyzing the effective orientation parameter and the pickup range image to determine an effective sound source height;

[0048] analyzing the effective orientation parameter and the effective sound source height to determine the vertical adjustment parameter of the microphone.

[0049] By adopting the technical scheme, the effective sound source height is determined according to the effective azimuth parameter and the pickup range image analysis, so that the vertical adjustment parameter is determined according to the effective sound source height and the effective azimuth parameter analysis, the microphone after vertical adjustment is ensured to be aligned with the effective sound source in the range, and then the pickup effect of the microphone is ensured.

[0050] Optionally, the step of analyzing the effective azimuth parameter and the effective sound source height to determine the vertical adjustment parameter of the microphone comprises:

[0051] determining whether the effective azimuth parameter meets the requirement of a single effective parameter;

[0052] if yes, the effective sound source height is determined as the use sound source height;

[0053] if no, the effective sound source height is analyzed to determine the maximum sound source height and the minimum sound source height;

[0054] the maximum sound source height and the minimum sound source height are analyzed to determine the use sound source height;

[0055] the use sound source height and the effective azimuth parameter are analyzed to determine the vertical adjustment parameter.

[0056] By adopting the technical scheme, when the effective azimuth parameter meets the requirement of a single effective parameter, the effective sound source height is determined as the use sound source height, and when the effective azimuth parameter does not meet the requirement, the use sound source height is obtained by analyzing the maximum sound source height and the minimum sound source height, and the vertical adjustment parameter is obtained by analyzing the use sound source height and the effective azimuth parameter, so that the microphone after vertical adjustment can well pick up the effective sound source.

[0057] Optionally, the step of analyzing the use sound source height and the effective azimuth parameter to determine the vertical adjustment parameter comprises:

[0058] the effective azimuth parameter is analyzed to determine the pickup horizontal distance;

[0059] the pickup horizontal distance and the use sound source height are analyzed to determine the vertical adjustment parameter.

[0060] By adopting the technical scheme, the vertical adjustment parameter is obtained by analyzing the pickup horizontal distance and the use sound source height, and then the convenience and reliability of determining the vertical adjustment parameter are improved.

[0061] In a second aspect, the application provides a desktop intelligent multi-directional pickup system, which adopts the following technical scheme:

[0062] A desktop intelligent multi-directional pickup system comprises:

[0063] acquire a start trigger signal, a sound source orientation parameter, and a pickup range image;

[0064] a memory for storing a program of the desktop intelligent multi-direction pickup method according to any one of the preceding embodiments;

[0065] a processor, the program in the memory being loadable and executable by the processor to implement the desktop intelligent multi-direction pickup method according to any one of the preceding embodiments.

[0066] By adopting the technical solution, the processor loads and executes the program of the desktop intelligent multi-direction pickup method stored in the memory, controls the acquisition module to acquire a series of data related to the desktop intelligent multi-direction pickup, determines the pickup microphone serial number and the corresponding sound source range orientation parameter according to the sound source orientation parameter and the pickup microphone relationship, determines the horizontal adjustment parameter after analyzing the sound source range orientation parameter and the pickup microphone serial number, determines the vertical adjustment parameter after analyzing the sound source range orientation parameter and the pickup range image, and adjusts the microphone corresponding to the pickup microphone serial number in the horizontal and vertical directions according to the horizontal adjustment parameter and the vertical adjustment parameter, so that the microphone can accurately aim at the person, and the good pickup effect of the microphone is ensured.

[0067] In summary, the present application has at least one of the following beneficial technical effects:

[0068] 1. By determining the pickup microphone serial number and the corresponding sound source range orientation parameter according to the sound source orientation parameter and the pickup microphone relationship, determining the horizontal adjustment parameter after analyzing the sound source range orientation parameter and the pickup microphone serial number, determining the vertical adjustment parameter after analyzing the sound source range orientation parameter and the pickup range image, and adjusting the microphone corresponding to the pickup microphone serial number in the horizontal and vertical directions according to the horizontal adjustment parameter and the vertical adjustment parameter, the microphone can accurately aim at the person, and the good pickup effect of the microphone is ensured.

[0069] 2. By determining the effective sound source orientation parameter after analyzing the sound source range orientation parameter, the corresponding range sound source speech content, and the pickup speech content, determining the horizontal adjustment parameter by using the maximum sound source orientation parameter and the minimum sound source orientation parameter in the effective sound source orientation parameter, the basis for the horizontal adjustment of the microphone is ensured to be the effective sound source in the range, and the microphone can effectively pickup all the sound sources, and the pickup effect of the microphone is ensured.

[0070] 3. By determining the effective sound source height after analyzing the effective orientation parameter and the pickup range image, determining the vertical adjustment parameter after analyzing the effective sound source height and the effective orientation parameter, the microphone after the vertical adjustment is aimed at the effective sound source in the range, and the pickup effect of the microphone is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0071] Figure 1 is a flowchart of a desktop intelligent multi-directional sound pickup method in an embodiment of the present application.

[0072] Figure 2 is a flowchart of a step of analyzing a sound source range azimuth parameter and a sound pickup microphone serial number to determine a horizontal adjustment parameter of a microphone in an embodiment of the present application.

[0073] Figure 3 is a flowchart of a step of analyzing a sound source range azimuth parameter, a sound pickup microphone serial number and a first azimuth processing parameter to determine a horizontal adjustment parameter of a microphone in an embodiment of the present application.

[0074] Figure 4 is a flowchart of a step of analyzing a sound source range azimuth parameter, a sound pickup microphone serial number, a range sound source speech content and a sound pickup speech content to determine a horizontal adjustment parameter of a microphone in an embodiment of the present application.

[0075] Figure 5 is a flowchart of a step of analyzing a maximum sound source azimuth parameter, a minimum sound source azimuth parameter and a sound pickup microphone serial number to determine a maximum adjustment parameter and a minimum adjustment parameter in an embodiment of the present application.

[0076] Figure 6 is a flowchart of a step of analyzing a sound source range azimuth parameter and a sound pickup range image to determine a vertical adjustment parameter of a microphone in an embodiment of the present application.

[0077] Figure 7 is a flowchart of a step of analyzing an effective azimuth parameter and an effective sound source height to determine a vertical adjustment parameter of a microphone in an embodiment of the present application.

[0078] Figure 8 is a flowchart of a step of analyzing a sound source height and an effective azimuth parameter to determine a vertical adjustment parameter in an embodiment of the present application. DETAILED DESCRIPTION

[0079] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application. Figures 1 to 8

[0080] ​The embodiment of the application discloses a desktop intelligent multi-direction sound pickup method, specifically discloses a microphone, a processing terminal and a position angle adjusting device, the processing terminal is in communication connection with the microphone and the position angle adjusting device respectively to realize data interaction and control, after the processing terminal receives a starting trigger signal of the microphone, the processing terminal responds to the starting trigger signal, thereby collecting a sound source direction parameter, and according to the sound source direction parameter, a sound pickup microphone serial number is found out in a sound pickup microphone relationship, and corresponding sound source range direction parameters are determined, after the sound pickup microphone serial number and the sound source range direction parameters are analyzed, horizontal adjustment parameters are determined, and vertical adjustment parameters are determined by analyzing the sound source range direction parameters and a sound pickup range image, thereby controlling the position angle adjusting device to adjust the angle and position of the microphone with the horizontal adjustment parameters and the vertical adjustment parameters, so that the microphone accurately aims at a person, and thus the sound pickup effect of the microphone is ensured.

[0081] Reference Figure 1 The embodiment of the application discloses a desktop intelligent multi-direction sound pickup method, and comprises the following steps:

[0082] Step S100: a starting trigger signal of a preset microphone is acquired.

[0083] The microphone refers to a device for collecting the sound of a person, and the specific model is determined by an operator according to the actual situation, and in the embodiment of the application, the microphone forms a microphone array in a linear array. The starting trigger signal refers to a signal for starting the microphone, and an operator presses or triggers the starting switch of the microphone, thereby sending a level signal representing the starting trigger signal to the processing terminal.

[0084] Step S101: a sound source direction parameter is acquired based on the starting trigger signal.

[0085] After the processing terminal receives the starting trigger signal, the processing terminal responds to the starting trigger signal, thereby detecting the sound source direction parameter, and providing data support for subsequent adjustment of the angle and position of the microphone.

[0086] The sound source direction parameter refers to the azimuth and distance of a sound source relative to the center of the microphone array, which is detected by the microphone array, and is determined by the processing terminal by using a time delay difference positioning method, by calculating the time difference of sound waves reaching different microphones.

[0087] Step S102: a sound pickup microphone serial number and corresponding sound source range direction parameters are determined according to the sound source direction parameter and a preset sound pickup microphone relationship; the sound source range direction parameters comprise a sound source range direction distance and a sound source range direction angle.

[0088] The pickup microphone relationship refers to the corresponding relationship between the sound source azimuth and the microphone. In the microphone array, different microphones are responsible for collecting sound within a certain azimuth, and the entire microphone array collects sound in all ranges. An operator forms a mapping table according to the one-to-one correspondence between the actual azimuth range collected by the microphone and the serial number of the microphone.

[0089] The pickup microphone serial number refers to the serial number of the microphone responsible for collecting the sound source. The processing terminal finds it in the mapping table corresponding to the pickup microphone relationship according to the sound source azimuth corresponding to the sound source azimuth parameter.

[0090] The sound source range azimuth parameter refers to the sound source azimuth parameter in the collection range of the microphone serial number, including the sound source range azimuth distance and the sound source range azimuth angle. The sound source range azimuth angle refers to the azimuth angle between the sound source within the range of the microphone serial number and the center of the microphone array. The sound source range azimuth distance refers to the distance between the sound source within the range of the microphone serial number and the center of the microphone array. The sound source range azimuth parameter is identified by the processing terminal from the sound source azimuth parameter whose azimuth angle is within the collection azimuth angle range corresponding to the pickup microphone serial number, and the sound source azimuth parameter is defined as the sound source range azimuth parameter.

[0091] Step S103: Analyzing the sound source range azimuth parameter and the pickup microphone serial number to determine the horizontal adjustment parameter of the microphone.

[0092] The horizontal adjustment parameter refers to the parameter for adjusting the position of the microphone in the horizontal direction, including the adjustment direction and the adjustment distance, which is obtained by the processing terminal after analyzing the sound source range azimuth parameter and the pickup microphone serial number. For specific methods, refer to the steps of Figure 2 .

[0093] Step S104: Controlling the microphone to perform horizontal adjustment according to the horizontal adjustment parameter and the pickup microphone serial number.

[0094] After the processing terminal obtains the horizontal adjustment parameter, the processing terminal controls the angle position adjustment device to move in the direction and distance corresponding to the horizontal adjustment parameter, thereby adjusting the position of the microphone to make the microphone closer to the sound source and ensure good pickup effect of the microphone.

[0095] The angle position adjustment device refers to a device for adjusting the horizontal position and vertical angle of the microphone, including a linear module installed on the base of the microphone for adjusting the horizontal position of the microphone, and a servo motor installed between the base of the microphone and the microphone for adjusting the vertical angle of the microphone.

[0096] Step S105: Obtaining a pickup range image based on the pickup microphone serial number.

[0097] Wherein, after the terminal determines the pickup microphone serial number, the terminal controls the camera above the corresponding microphone to collect the pickup range image according to the pickup microphone serial number, so as to provide data support for the subsequent adjustment of the vertical direction of the microphone.

[0098] The pickup range image refers to the image within the pickup range of the microphone, which is obtained by the terminal controlling the camera above the corresponding microphone to take a picture within the pickup range according to the pickup microphone serial number.

[0099] Step S106: analyzing the sound source range azimuth parameter and the pickup range image to determine the vertical adjustment parameter of the microphone.

[0100] The vertical adjustment parameter refers to the adjustment of the angle of the microphone in the vertical direction, which is obtained by the terminal analyzing the sound source range azimuth parameter and the pickup range image. For specific methods, refer to the steps of Figure 6 .

[0101] Step S107: controlling the microphone to make vertical adjustment according to the vertical adjustment parameter and the pickup microphone serial number.

[0102] Wherein, after the terminal determines the vertical adjustment parameter, the terminal controls the angle position adjustment device to adjust the angle of the microphone according to the vertical adjustment angle corresponding to the vertical adjustment parameter, so as to accurately align the microphone with the mouth position of the person and further ensure good pickup effect.

[0103] For specific methods, refer to the steps of Figure 2 analyzing the sound source range azimuth parameter and the pickup microphone serial number to determine the horizontal adjustment parameter of the microphone.

[0104] Step S200: analyzing the sound source range azimuth parameter to determine the total number of range sound sources.

[0105] The total number of range sound sources refers to the total number of sound sources within the pickup range of the microphone, which is obtained by the terminal counting the number of azimuth angles within the sound source range azimuth parameter.

[0106] Step S201: determining whether the total number of range sound sources meets the requirement of the preset single sound source number.

[0107] The single sound source number refers to the number of sound sources being 1, and the requirement of the single sound source number refers to being consistent with the single sound source number.

[0108] By determining whether the total number of range sound sources is consistent with the single sound source number through the terminal, it is determined whether the adjustment distance and direction in the horizontal direction can be directly calculated according to the azimuth angle of the sound source within the range.

[0109] Step S2011: If yes, the first azimuth processing parameter is determined according to the pickup microphone serial number and the preset microphone angle processing relationship.

[0110] If the processing terminal determines that the total number of range sound sources is consistent with the number of single sound sources, it indicates that there is only one sound source in the pickup range, and the horizontal adjustment distance and direction can be directly calculated according to the azimuth of the sound source in the range. Therefore, the first azimuth processing parameter is determined according to the pickup microphone serial number and the microphone angle processing relationship, which provides data support for subsequent determination of the horizontal adjustment parameter.

[0111] The microphone angle processing relationship refers to the corresponding relationship between the microphone serial number and the angle processing parameter. For example, the microphone at the central axis can determine how to process the azimuth according to the comparison between the central axis angle and the azimuth of the sound source. If the azimuth of the sound source is less than the central axis angle, the azimuth processing parameter is 90 degrees minus the azimuth of the sound source. If the azimuth of the sound source is greater than the central axis angle, the azimuth processing parameter is the azimuth of the sound source minus 90 degrees. For example, the microphone at the corner needs to determine whether the microphone is on the left or right side of the central axis. If it is on the left side, the azimuth processing parameter is the azimuth of the sound source minus 90 degrees. If it is on the right side, the azimuth processing parameter is 90 degrees minus the azimuth of the sound source. The operator forms a mapping table by corresponding the actual microphone serial number and the azimuth processing parameter.

[0112] The first azimuth processing parameter refers to the method of processing the azimuth in the sound source range azimuth parameter, which is obtained by the processing terminal in the mapping table corresponding to the microphone angle processing relationship according to the pickup microphone serial number.

[0113] Step S20111: The sound source range azimuth parameter, the pickup microphone serial number and the first azimuth processing parameter are analyzed to determine the horizontal adjustment parameter of the microphone.

[0114] The horizontal adjustment parameter in this step is consistent with the horizontal adjustment parameter in step S103, which is determined by the processing terminal after analyzing the sound source range azimuth parameter, the pickup microphone serial number and the first azimuth processing parameter. For specific methods, refer to the steps of Figure 3 .

[0115] Step S2012: If no, the range sound source speech content and the pickup speech content are obtained based on the sound source range azimuth parameter.

[0116] If the processing terminal determines that the total number of range sound sources is inconsistent with the number of single sound sources, it indicates that there are multiple sound sources in the pickup range. At this time, the azimuth and distance of multiple sound sources need to be considered. Therefore, the range sound source speech content and the pickup speech content are detected based on the sound source range azimuth parameter, which provides data support for subsequent determination of the horizontal adjustment parameter.

[0117] The range sound source speech content refers to speech content corresponding to sound sources at different azimuth angles in the range sound source azimuth parameter, and the speech at a specific azimuth angle in the range sound source azimuth parameter is called by the processing terminal to obtain speech recognition.

[0118] The pickup speech content refers to speech content of sound picked up by other microphones, and the sound picked up by other microphones is called by the processing terminal to obtain speech recognition.

[0119] Step S20121: analyzing the range sound source azimuth parameter, the pickup microphone serial number, the range sound source speech content, and the pickup speech content to determine the horizontal adjustment parameter of the microphone.

[0120] In this step, the horizontal adjustment parameter is consistent with the horizontal adjustment parameter in step S103, and is obtained by the processing terminal after analyzing the range sound source azimuth parameter, the pickup microphone serial number, the range sound source speech content, and the pickup speech content. For details, refer to the steps of Figure 4 .

[0121] Refer to Figure 3 , the step of analyzing the range sound source azimuth parameter, the pickup microphone serial number, and the first azimuth angle processing parameter to determine the horizontal adjustment parameter of the microphone includes:

[0122] Step S300: determining the microphone azimuth angle and the microphone horizontal distance according to the pickup microphone serial number and the preset microphone azimuth relationship.

[0123] The microphone azimuth relationship refers to the corresponding relationship between different microphones and the microphone azimuth angle and distance. In the microphone array, the angles and distances of different microphones from the center of the microphone array are not the same. The actual microphone serial number and the azimuth angle of the microphone from the center of the array are one-to-one corresponding to form a mapping table by the operator.

[0124] The microphone azimuth angle refers to the angle of the microphone from the center of the microphone array, and the microphone horizontal distance refers to the distance of the microphone from the center of the microphone array in the horizontal direction. The microphone serial number is found in the mapping table corresponding to the microphone azimuth relationship by the processing terminal.

[0125] Step S301: analyzing the microphone azimuth angle and the range sound source azimuth angle to determine the horizontal adjustment direction.

[0126] The horizontal adjustment direction refers to the direction of the position adjustment of the microphone in the horizontal direction, which is obtained by the processing terminal analyzing the azimuth of the microphone and the azimuth of the sound source range. In an embodiment, taking the microphone as the center, the azimuth to the left of the microphone is greater than the azimuth of the microphone, and the azimuth to the right of the microphone is less than the azimuth of the microphone. Therefore, when it is determined that the azimuth of the sound source is greater than the azimuth of the microphone, the right direction is defined as the horizontal adjustment direction, and when it is determined that the azimuth of the sound source is less than the azimuth of the microphone, the left direction is defined as the horizontal adjustment direction.

[0127] Step S302: analyzing the azimuth of the sound source range and the first azimuth processing parameter to determine a processing azimuth.

[0128] The processing azimuth refers to the azimuth used to calculate the horizontal distance after processing, which is obtained by the processing terminal processing the azimuth of the sound source range according to the method corresponding to the first azimuth processing parameter. For example, if the first azimuth processing parameter is 90 degrees minus the azimuth of the sound source, the processing azimuth is 90 degrees minus the azimuth of the sound source range.

[0129] Step S303: analyzing the azimuth distance of the sound source range and the processing azimuth to determine the horizontal distance of the sound source.

[0130] The horizontal distance of the sound source refers to the distance between the sound source and the center of the microphone array in the horizontal direction, which is obtained by the processing terminal calculating the product of the sine function value of the processing azimuth and the azimuth distance of the sound source range.

[0131] Step S304: determining whether the pickup microphone serial number meets the requirement of the preset central axis microphone serial number.

[0132] The central axis microphone serial number refers to the serial number of the microphone located on the central axis of the microphone array, which is stored in the processing terminal by the operator. The requirement of the central axis microphone serial number refers to being consistent with the central axis microphone serial number.

[0133] The processing terminal determines whether the pickup microphone serial number is consistent with the central axis microphone serial number, so as to determine whether the horizontal distance of the sound source can be directly used as the adjustment distance of the microphone in the horizontal direction.

[0134] Step S3041: if yes, associating the horizontal adjustment direction and the horizontal distance of the sound source to generate the horizontal adjustment parameter of the microphone.

[0135] If the processing terminal determines that the pickup microphone serial number is consistent with the central axis microphone serial number, it indicates that the horizontal distance between the sound source and the center of the microphone array is the horizontal distance between the sound source and the microphone. Therefore, the horizontal distance of the sound source can be directly used as the adjustment distance of the microphone in the horizontal direction, so as to associate the horizontal adjustment direction and the horizontal distance of the sound source to obtain the horizontal adjustment parameter of the microphone.

[0136] Step S3042: If not, the microphone azimuth, the sound source range azimuth, the sound source horizontal distance and the microphone horizontal distance are analyzed to determine the horizontal adjustment distance, and the horizontal adjustment direction and the horizontal adjustment distance are associated to generate the horizontal adjustment parameter of the microphone.

[0137] If the processing terminal determines that the pickup microphone serial number and the central axis microphone serial number are inconsistent, it indicates that the horizontal lateral distance of the sound source from the center of the microphone array and the horizontal lateral distance of the sound source from the microphone are different, so the microphone azimuth and the sound source range azimuth are compared, if the microphone azimuth is less than the sound source range azimuth, the horizontal adjustment distance is obtained by subtracting the microphone horizontal distance from the sound source horizontal distance; if the microphone azimuth is greater than the sound source range azimuth, the horizontal adjustment distance is obtained by subtracting the sound source horizontal distance from the microphone horizontal distance, so that the horizontal adjustment parameter is obtained by associating the horizontal adjustment direction and the horizontal adjustment distance.

[0138] The horizontal adjustment distance refers to the distance of the microphone adjustment in the horizontal lateral direction, which is compared by the processing terminal between the microphone azimuth and the sound source range azimuth, if the microphone azimuth is less than the sound source range azimuth, the horizontal adjustment distance is obtained by subtracting the microphone horizontal distance from the sound source horizontal distance; if the microphone azimuth is greater than the sound source range azimuth, the horizontal adjustment distance is obtained by subtracting the sound source horizontal distance from the microphone horizontal distance.

[0139] Reference Figure 4 The step of analyzing the sound source range azimuth parameter, the pickup microphone serial number, the range sound source speech content and the pickup speech content to determine the horizontal adjustment parameter of the microphone includes:

[0140] Step S400: The sound source range azimuth parameter, the corresponding range sound source speech content and the pickup speech content are analyzed to determine the effective sound source azimuth parameter.

[0141] The effective sound source azimuth parameter refers to the effective azimuth parameter in the sound source range azimuth parameter, which is analyzed by the processing terminal for the correlation degree between the range sound source speech content and the pickup speech content, so that the speech content with a correlation degree higher than a threshold in the range sound source speech content is determined as the effective speech content, and the corresponding azimuth parameter in the sound source range azimuth parameter is called as the effective sound source azimuth parameter according to the effective speech content.

[0142] Step S401: The effective sound source azimuth parameter is analyzed to determine the maximum sound source azimuth parameter and the minimum sound source azimuth parameter.

[0143] The maximum sound source orientation parameter refers to a sound source orientation parameter with the maximum azimuth angle, and the minimum sound source orientation parameter refers to a sound source orientation parameter with the minimum azimuth angle. The effective sound source orientation parameters are sorted by the azimuth angle by the processing terminal, so that the effective sound source orientation parameter with the maximum azimuth angle is selected as the maximum sound source orientation parameter, and the effective sound source orientation parameter with the minimum azimuth angle is selected as the minimum sound source orientation parameter.

[0144] Step S402: Analyzing the maximum sound source orientation parameter, the minimum sound source orientation parameter and the pickup microphone serial number to determine the maximum adjustment parameter and the minimum adjustment parameter.

[0145] The maximum adjustment parameter refers to the distance and direction that the microphone needs to be adjusted to align with the sound source with the maximum azimuth angle, and the minimum adjustment parameter refers to the distance and direction that the microphone needs to be adjusted to align with the sound source with the minimum azimuth angle. The maximum sound source orientation parameter, the minimum sound source orientation parameter and the pickup microphone serial number are analyzed by the processing terminal to determine the maximum adjustment parameter and the minimum adjustment parameter. For details, refer to the steps of Figure 5 .

[0146] Step S403: Analyzing the maximum adjustment parameter and the minimum adjustment parameter to determine the horizontal adjustment parameter of the microphone.

[0147] The horizontal adjustment parameter in this step is the same as the horizontal adjustment parameter in step S20121. The direction and distance in the maximum adjustment parameter and the minimum adjustment parameter are compared by the processing terminal. If the directions are the same, the direction is kept unchanged, and the middle value of the distance in the maximum adjustment parameter and the minimum adjustment parameter is taken as the adjustment distance, so that the horizontal adjustment parameter is obtained by associating the direction and the distance. If the directions are different, the distances in the maximum adjustment parameter and the minimum adjustment parameter are compared. If the distance in the maximum adjustment parameter is larger, the direction in the maximum adjustment parameter is taken as the adjustment direction. If the distance in the minimum adjustment parameter is larger, the direction in the minimum adjustment parameter is taken as the adjustment direction. The adjustment distance is also the middle value of the distance in the maximum adjustment parameter and the minimum adjustment parameter. Finally, the horizontal adjustment parameter is obtained by associating the adjustment direction and the adjustment distance.

[0148] For details, refer to Figure 5 The step of analyzing the maximum sound source orientation parameter, the minimum sound source orientation parameter and the pickup microphone serial number to determine the maximum adjustment parameter and the minimum adjustment parameter includes:

[0149] Step S500: Determining the second azimuth angle processing parameter according to the pickup microphone serial number and the preset microphone angle processing relationship.

[0150] The microphone angle processing relationship and the second azimuth angle processing parameter in this step are actually the same as the microphone angle processing relationship and the first azimuth angle processing parameter in step S2011, and will not be repeated here.

[0151] Step S501: analyzing the maximum sound source orientation parameter, the pickup microphone serial number and the second azimuth processing parameter to determine the maximum adjustment parameter.

[0152] The maximum adjustment parameter in this step is consistent with the maximum adjustment parameter in step S402, which is obtained by the processing terminal analyzing the maximum sound source orientation parameter, the pickup microphone serial number and the second azimuth processing parameter. The specific method is the same as the logic of the step of analyzing the sound source range orientation parameter, the pickup microphone serial number and the first azimuth processing parameter in the first aspect to determine the horizontal adjustment parameter of the microphone, which will not be repeated here. Figure 3

[0153] Step S502: analyzing the minimum sound source orientation parameter, the pickup microphone serial number and the second azimuth processing parameter to determine the minimum adjustment parameter.

[0154] The minimum adjustment parameter in this step is consistent with the minimum adjustment parameter in step S402, which is obtained by the processing terminal analyzing the minimum sound source orientation parameter, the pickup microphone serial number and the second azimuth processing parameter. The specific method is the same as the logic of the step of analyzing the sound source range orientation parameter, the pickup microphone serial number and the first azimuth processing parameter in the first aspect to determine the horizontal adjustment parameter of the microphone, which will not be repeated here. Figure 3

[0155] Referring to Figure 6 The step of analyzing the sound source range orientation parameter and the pickup range image to determine the vertical adjustment parameter of the microphone includes:

[0156] Step S600: obtaining the effective orientation parameter based on the sound source range orientation parameter.

[0157] The effective orientation parameter refers to the effective orientation parameter in the sound source range orientation parameter, and the specific obtaining method is consistent with the effective sound source orientation parameter in step S400, which will not be repeated here.

[0158] Step S601: analyzing the effective orientation parameter and the pickup range image to determine the effective sound source height.

[0159] The effective sound source height refers to the height of the effective sound source in the vertical direction from the microphone. The processing terminal calculates the horizontal lateral distance of the sound source according to the product of the sine function value of the azimuth corresponding to the effective orientation parameter and the distance, thereby mapping the coordinate system in the pickup range image, identifying the portrait feature at the coordinate corresponding to the horizontal lateral distance, and extracting the mouth feature in the portrait feature, and finally identifying the vertical coordinate of the mouth feature in the coordinate system to obtain the effective sound source height.

[0160] ​​Step S602: analyzing the effective azimuth parameter and the effective sound source height to determine the vertical adjustment parameter of the microphone.

[0161] In this step, the vertical adjustment parameter is consistent with the vertical adjustment parameter in step S106, which is obtained by analyzing the effective azimuth parameter and the effective sound source height by the processing terminal. For specific analysis method, refer to the step of Figure 7 .

[0162] For specific analysis method, refer to the step of Figure 7 analyzing the effective azimuth parameter and the effective sound source height to determine the vertical adjustment parameter of the microphone.

[0163] Step S700: determining whether the effective azimuth parameter meets the requirement of single effective parameter.

[0164] In this step, the single effective parameter refers to the number of effective azimuth parameters being 1, and the requirement of single effective parameter refers to the number being consistent with the single effective parameter.

[0165] The processing terminal determines whether the number of effective azimuth parameters is consistent with the number corresponding to the single effective parameter, so as to determine whether the effective sound source height can be directly used to calculate the vertical adjustment parameter.

[0166] Step S701: if yes, determining the effective sound source height as the use sound source height.

[0167] In this step, if the processing terminal determines that the number of effective azimuth parameters is consistent with the number corresponding to the single effective parameter, it indicates that there is only one effective sound source, and the adjustment of the microphone in the vertical direction is based on the effective sound source height. Therefore, the effective sound source height is determined as the use sound source height, which provides data support for subsequent calculation of the vertical adjustment parameter.

[0168] The use sound source height refers to the sound source height used to calculate the vertical adjustment parameter. In this step, the processing terminal directly defines the effective sound source height as the use sound source height.

[0169] Step S702: if no, analyzing the effective sound source height to determine the maximum sound source height and the minimum sound source height.

[0170] In this step, if the processing terminal determines that the number of effective azimuth parameters is not consistent with the number corresponding to the single effective parameter, it indicates that there are multiple effective sound sources, and the adjustment of the microphone in the vertical direction needs to consider multiple sound source heights. Therefore, the effective sound source height is analyzed to obtain the maximum sound source height and the minimum sound source height, which provides data support for subsequent calculation of the vertical adjustment parameter.

[0171] The maximum sound source height refers to a maximum value in the effective sound source heights, and the minimum sound source height refers to a minimum value in the effective sound source heights. The effective sound source heights are sorted in descending order by the processing terminal, and the maximum value and the minimum value are obtained.

[0172] Step S7021: The maximum sound source height and the minimum sound source height are analyzed to determine the use sound source height.

[0173] In this step, the use sound source height is consistent with the use sound source height in step S701, and the difference is that the use sound source height in this step is obtained by the processing terminal calculating the intermediate value of the maximum sound source height and the minimum sound source height.

[0174] Step S703: The use sound source height and the effective azimuth parameter are analyzed to determine the vertical adjustment parameter.

[0175] After the use sound source height is determined, the processing terminal calculates the use sound source height and the effective azimuth parameter to obtain the vertical adjustment parameter. For details, refer to the steps of Figure 8 .

[0176] Referring to Figure 8 , the step of analyzing the use sound source height and the effective azimuth parameter to determine the vertical adjustment parameter includes:

[0177] Step S800: The effective azimuth parameter is analyzed to determine the pickup horizontal distance.

[0178] The pickup horizontal distance refers to the horizontal vertical distance of the sound source height from the microphone. The processing terminal calculates the cosine function value of the azimuth angle in the effective azimuth parameter, and then calculates the product of the cosine function value and the horizontal vertical distance of the microphone from the array center to obtain the horizontal vertical distance of the sound source from the array center. Then, the difference between the horizontal vertical distance and the preset horizontal vertical distance of the microphone from the array center is calculated to obtain the pickup horizontal distance.

[0179] Step S801: The pickup horizontal distance and the use sound source height are analyzed to determine the vertical adjustment parameter.

[0180] In this step, the vertical adjustment parameter is consistent with the vertical adjustment parameter in step S703. The pickup horizontal distance is one of the right angles of a right triangle, and the use sound source height is the other right angle of the right triangle. The tangent function value of the corresponding angle is calculated according to the pickup horizontal distance and the use sound source height, and then the inverse function of the tangent function value is calculated to obtain the angle that the microphone needs to adjust. The adjustment angle is defined as the vertical adjustment parameter.

[0181] Based on the same inventive concept, the embodiments of the present application provide a desktop intelligent multi-directional sound pickup system, which comprises:

[0182] The acquisition module is configured to acquire the start trigger signal, the sound source direction parameter, the sound pickup range image, the range sound source voice content, the sound pickup voice content, and the effective direction parameter.

[0183] The memory is configured to store a program of the desktop intelligent multi-direction sound pickup method.

[0184] The processor is configured to load and execute the program in the memory, and implement the desktop intelligent multi-direction sound pickup method.

[0185] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional modules is taken as an example for illustration, and in actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiments, which will not be described here.

[0186] The embodiment of the present application provides a computer readable storage medium, which stores a computer program capable of being loaded and executed by a processor to implement a desktop intelligent multi-direction sound pickup method.

[0187] The computer storage medium includes, for example, a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0188] Based on the same inventive concept, the embodiment of the present application provides an intelligent terminal, which includes a memory and a processor, and the memory stores a computer program capable of being loaded and executed by the processor to implement a desktop intelligent multi-direction sound pickup method.

[0189] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional modules is taken as an example for illustration, and in actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiments, which will not be described here.

[0190] The above are only preferred embodiments of the present application, not intended to limit the protection scope of the present application, any one feature disclosed in the specification (including the abstract and the drawings) can be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated, each feature is only an example of a series of equivalent or similar features.

Claims

1. A desktop intelligent multi-directional sound pickup method, characterized in that, include: Obtain the preset microphone's activation trigger signal; The sound source orientation parameters are obtained based on the start-up trigger signal; The microphone serial number and corresponding sound source range azimuth parameters are determined based on the sound source azimuth parameters and the preset microphone relationship; the sound source range azimuth parameters include the sound source range azimuth distance and the sound source range azimuth angle. The directional parameters of the sound source range and the serial number of the microphone were analyzed to determine the horizontal adjustment parameters of the microphone. The microphone is leveled according to the level adjustment parameters and the microphone number. Obtain the pickup range image based on the microphone serial number; The azimuth parameters of the sound source range and the pickup range image are analyzed to determine the vertical adjustment parameters of the microphone; The microphone is vertically adjusted according to the vertical adjustment parameters and the microphone number. The steps for analyzing the azimuth parameters of the sound source range and the microphone serial number to determine the microphone's horizontal adjustment parameters include: Analyze the azimuth parameters of the sound source range to determine the total number of sound sources in the range; Determine whether the total number of sound sources in the range meets the preset requirement for the number of single sound sources; If the conditions are met, the first azimuth processing parameters are determined based on the microphone serial number and the preset microphone angle processing relationship. The azimuth parameters of the sound source range, the microphone number, and the first azimuth angle processing parameters are analyzed to determine the horizontal adjustment parameters of the microphone. If not, the speech content of the sound source and the speech content of the pickup are obtained based on the sound source range orientation parameters. The sound source range azimuth parameters, microphone serial number, sound source speech content, and picked-up speech content are analyzed to determine the microphone's horizontal adjustment parameters. The steps to determine the microphone's horizontal adjustment parameters by analyzing the sound source's directional parameters, microphone number, sound source content, and picked-up speech content include: The directional parameters of the sound source range, the corresponding speech content of the sound source range, and the speech content picked up are analyzed to determine the effective directional parameters of the sound source. The effective sound source azimuth parameters are analyzed to determine the maximum and minimum sound source azimuth parameters; The maximum and minimum sound source azimuth parameters and the microphone serial number are analyzed to determine the maximum and minimum adjustment parameters. The maximum and minimum adjustment parameters are analyzed to determine the microphone's horizontal adjustment parameters.

2. The desktop intelligent multi-directional sound pickup method according to claim 1, characterized in that, The steps for analyzing the azimuth parameters of the sound source range, the microphone serial number, and the first azimuth angle processing parameters to determine the microphone's horizontal adjustment parameters include: The microphone azimuth and horizontal distance are determined based on the microphone serial number and the preset microphone orientation relationship; Analyze the microphone azimuth and the azimuth of the sound source range to determine the horizontal adjustment direction; The processing parameters of the sound source range azimuth and the first azimuth are analyzed to determine the processing azimuth. The azimuth distance and processing azimuth of the sound source range are analyzed to determine the horizontal distance of the sound source; Determine whether the microphone serial number matches the preset requirements for the center axis microphone serial number; If the conditions are met, the horizontal adjustment direction and the horizontal distance from the sound source are correlated to generate the microphone's horizontal adjustment parameters; If the conditions are not met, the microphone azimuth, sound source range azimuth, sound source horizontal distance, and microphone horizontal distance are analyzed to determine the horizontal adjustment distance, and the horizontal adjustment direction and horizontal adjustment distance are correlated to generate the microphone's horizontal adjustment parameters.

3. The desktop intelligent multi-directional sound pickup method according to claim 1, characterized in that, The steps for analyzing the maximum and minimum sound source azimuth parameters and the microphone serial number to determine the maximum and minimum adjustment parameters include: The second azimuth processing parameters are determined based on the microphone serial number and the preset microphone angle processing relationship; The maximum sound source azimuth parameter, microphone number, and second azimuth angle processing parameter are analyzed to determine the maximum adjustment parameter. The minimum sound source azimuth parameter, microphone number, and second azimuth angle processing parameter are analyzed to determine the minimum adjustment parameter.

4. The desktop intelligent multi-directional sound pickup method according to claim 1, characterized in that, The steps for analyzing the azimuth parameters of the sound source range and the pickup range image to determine the vertical adjustment parameters of the microphone include: Obtain effective azimuth parameters based on the azimuth parameters of the sound source range; The effective azimuth parameters and pickup range images are analyzed to determine the effective sound source height; The effective azimuth parameters and effective sound source height are analyzed to determine the vertical adjustment parameters of the microphone.

5. A desktop intelligent multi-directional sound pickup method according to claim 4, characterized in that, The steps for analyzing the effective azimuth parameters and effective sound source height to determine the microphone's vertical adjustment parameters include: Determine whether the effective azimuth parameters meet the preset requirements for a single effective parameter; If the conditions are met, the effective sound source height will be determined as the sound source height to be used. If the conditions are not met, the effective sound source height will be analyzed to determine the maximum and minimum sound source heights. The maximum and minimum sound source heights are analyzed to determine the appropriate sound source height. The height of the sound source and the effective azimuth parameters are analyzed to determine the vertical adjustment parameters.

6. The desktop intelligent multi-directional sound pickup method according to claim 5, characterized in that, The steps for analyzing the sound source height and effective azimuth parameters to determine the vertical adjustment parameters include: Analyze the effective azimuth parameters to determine the horizontal pickup distance; The horizontal pickup distance and the height of the sound source were analyzed to determine the vertical adjustment parameters.

7. A desktop intelligent multi-directional sound pickup system, characterized in that, include: The acquisition module is used to acquire the start-up trigger signal, sound source orientation parameters, and pickup range image; A memory for storing a program of a desktop intelligent multi-directional sound pickup method as described in any one of claims 1 to 6; The processor and the program in the memory can be loaded and executed by the processor to implement the desktop intelligent multi-directional sound pickup method as described in any one of claims 1 to 6.

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