Microphone with adjustable signal processing

Abstract

To provide a microphone capable of obtaining a stable audio signal without the need for knowledge about the technology of the microphone.SOLUTION: The microphone includes a microphone cartridge for detecting sound, a digital signal processor (DSP) for processing a first audio signal based on the sound according to a selected one of a plurality of digital signal processing modes, and a universal serial bus (USB) connector for outputting a digital signal resulting from processing the first audio signal according to the selected one of the plurality of digital signal processing modes. In the DSP, each of the plurality of digital signal processing modes is for processing the first audio signal in a different manner, and automatically adjusts one or more of the parameters of a selected one of the plurality of digital signal processing modes based on the target gain.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] This application relates to a microphone with adjustable signal processing. (CROSS-REFERENCE TO RELATED APPLICATIONS) This application is a continuation of U.S. Provisional Patent Application No. 62 / 939,347, filed November 22, 2019, entitled "Mi crophone With Adjustable Signal Processi ng,” which is incorporated herein by reference in its entirety. [Background technology]

[0002] Different types of microphones have certain advantages but also limitations. Dynamic microphones with a high pass filter (such as cardioid) are excellent for recording voice. The advantages are that it has a rich bass range and is resistant to room noise. However, it suffers from the proximity effect. Due to their low sensitivity and low sensitivity, these microphones require careful user control to ensure consistent results. However, some knowledge of "good" microphone technology is often required.

[0003] Also, USB-connected microphones generally require a single microphone. Although it is easy and convenient, it is quite difficult to use multiple microphones simultaneously with the same setup. Sometimes it is impossible. Summary of the Invention

[0004] Below is a simplified summary of some of the features. This summary is not a comprehensive overview. It is not intended to identify key or critical elements.

[0005] This specification provides examples of microphones and methods of operation and implementation of such microphones. We will explain about this.

[0006] This microphone can be classified as a unidirectional microphone or a multidirectional microphone depending on its configuration. microphone, omnidirectional microphone, dynamic microphone, unidirectional dynamic microphone microphones, or condenser microphones, but Not limited.

[0007] According to a further aspect, the microphone may be configured to support one or more Universal Serial Bus ( multiple types of signal connectors, such as a USB (Universal Serial Bus) connector and / or one or more XLR connectors These may include signal connectors that can be used with a variety of other devices (e.g., Apple Mac computers). Computers and Mobile Devices, Windows PC Computers and Mobile Devices, Android This microphone can be used with various devices (such as .oid devices, XLR mixers and interfaces). The connectors on the phone include one or more digital signal connectors (e.g., USB) and and / or one or more analog signal connectors (e.g., XLR). A connector can be an input connector, an output connector, or both an input and output connector. The user of this microphone may use one or more connectors as a convenience. Use this to expand the microphone and support larger setups with multiple microphones. For example, the XLR connector on this microphone can be part of a passive The user can use the output from the XLR connector of another microphone with this microphone. It may be configured to be daisy-chainable to the XLR connector of the In such a configuration, the outputs from both microphones must be connected to the USB connector or other The output can be via a separate connector on the microphone.

[0008] According to a further aspect, the circuitry for providing audio output via a USB connector comprises: , including preamplifiers and / or digital signal processors (DSPs) in the signal chain. The preamplifier and DSP may be low noise circuits.

[0009] According to a further aspect, the DSP may be configured to process an input audio signal according to one of a number of modes. Multiple modes can be used to process audio, for example, depending on the distance of the person speaking (e.g. , near and far) and / or desired tones (e.g., dark tones, neutral Some modes are automatic modes, but you may want to consider For example, it can be tailored to accommodate different voice-centric scenarios. More specifically, the automatic mode can be used in multiple microphone position scenarios (e.g. , near and far scenarios) and / or multiple tone scenarios (e.g., dark These two may be divided into three categories: dark tones, neutral tones, and bright tones. The combination of scenarios can be set manually by the user or automatically by the DSP. Based on the selected combination of scenarios, the microphone's DSP may: Desired output audio for various audio applications, such as speech applications You can adjust one or more of the settings to provide a suitable audio signal. For example, multiband compression and EQ settings to reduce proximity effect and sibilance. The long distance mode may include, for example, a predetermined distance (e.g., 12 inches or more) from the Increases the low end and reduces the thinness you experience when using a unidirectional microphone. It may contain multi-band compression and / or EQ settings aimed at enhancing the overall sound quality. Depending on the selected tone scenario, tone adjustments can be made based on personal preferences, for example. The averaging can be adjusted to provide the user with a darker or brighter sound. Additionally, the Auto mode allows you to adjust the volume as you speak or change your distance from the microphone. It can include automatic level control to provide a more consistent volume even when changing levels. do.

[0010] According to a further aspect, one or more other modes of the plurality of modes may be manually This may be in a manual mode, allowing the user to manually change one or more of the settings. You can exercise control over the settings (although some of the settings may still be set automatically). (This may or may not be required.)

[0011] According to a further aspect, the DSP mode may be implemented using a dedicated USB connector or other suitable interface to the microphone. The selection may be made via the user interface of the connected device. For example, smartphones, tablets, personal computers, and other computing devices The device may comprise a user interface for the user. Through this interface, users can select the desired DSP mode and other Select the desired operating characteristics of this microphone, including any desired microphone settings. It is possible.

[0012] According to a further aspect, the microphone itself constitutes a user interface. the user interface may comprise a capacitive touch interface. The capacitive touch interface may be a curved capacitive touch interface. This user interface allows the user to You can manually select the settings for one or more microphones.

[0013] According to a further aspect, the microphone can be configured in desk mode and / or hanging mode. In studio mode, it may be connected to a holder such as a mountable yoke. , for example, may be U-shaped.

[0014] According to a further aspect, a microphone including a microphone element configured to detect sound. A microphone may be provided. The microphone may be implemented in multiple digital signal processing modes. and processing a first audio signal based on the sound according to a selected one of the The digital signal processing device may further include a digital signal processing device configured to perform each of the plurality of digital signal processing modes. Each may be for processing the first audio signal in a different way, one or more parameters to achieve a target gain or other target characteristic of the audio The present invention may be used to automatically adjust the

[0015] According to a further aspect, a microphone includes: a microphone element for detecting a sound; generating a first audio signal based on the first audio signal; The Lophone can select from multiple digital signal processing modes. Each of the plurality of digital signal processing modes may select a mode for processing the first audio signal. The microphone may be designed to process audio in different ways. Digital signal processing modes applied to achieve a target gain or other target characteristic of the This microphone can automatically adjust one or more parameters of the a digital signal of the first audio signal according to the selected digital signal processing mode; Further processing may be performed on the first audio signal. Such digital signal processing may include: The method may further include automatically adjusting the gain based on the microphone. As a result of digital signal processing, a digital audio signal is generated and output via the USB connector. Even if you output a digital audio signal through the first connector of a microphone such as good.

[0016] According to a further aspect, the first microphone is connected to a first connector, such as an XLR connector. Receive audio signals from a second microphone or other device through this connector. The first microphone may include a microphone element. The microphone may also be connected to a USB connector. and the audio signal received through the first connector via a second connector, such as It can also output a digital signal based on both detected sounds.

[0017] These features and other potential advantages are described in more detail below. [Brief explanation of the drawings]

[0018] Certain features are illustrated by way of example, and not by way of limitation, in the accompanying drawings, in which: The numbers indicate the corresponding elements.

[0019] [Figure 1A] FIG. 1 is a side view of an example microphone according to aspects described herein.

[0020] [Figure 1B] 1B is an example of a front view of the microphone of FIG. 1A.

[0021] [Figure 2] 1A and 1B and one or more other devices according to aspects described herein. FIG.

[0022] [Figure 3] 1A and 1B show example block diagrams of one or more portions of an example microphone, such as the microphone of FIGS. 1A and 1B, according to embodiments described herein.

[0023] [Figure 4A] FIG. 1C is another example block diagram of one or more portions of an example microphone, such as the microphone of FIGS. 1A and 1B, according to aspects described herein.

[0024] [Figure 4B] 4B shows another portion of the block diagram of FIG. 4A.

[0025] [Figure 5] FIG. 1C is another example block diagram of one or more portions of an example microphone (such as the microphone of FIGS. 1A and 1B) according to aspects described herein.

[0026] [Figure 6] FIG. 1 is a block diagram of an exemplary computing device according to aspects described herein.

[0027] [Figure 7A]FIG. 1C is another example block diagram of one or more portions of an example microphone (such as the microphone of FIGS. 1A and 1B) including at least a portion of a digital signal processing system (DSP) according to aspects described herein.

[0028] [Figure 7B] FIG. 7B is a block diagram illustrating further example details of the de-esser and bass control of FIG. 7A.

[0029] [Figure 8] 1 is an exemplary flowchart of a method that may be performed according to aspects described herein.

[0030] [Figure 9] 1A and 1B show exemplary user interfaces that may be displayed by a device connected to a microphone (such as the microphone of FIGS. 1A and 1B) according to embodiments described herein. DETAILED DESCRIPTION OF THE INVENTION

[0031] The accompanying drawings, which form a part of this specification, illustrate examples of the present disclosure. and / or the examples discussed herein are non-exclusive and are not intended to be limiting of how the present disclosure may be implemented. It should be understood that there are other examples of

[0032] 1A and 1B are side and front views, respectively, of an example microphone 100. The microphone 100 may be any of the microphones shown in FIGS. 2, 3A, 3B, 4, 5, 6A, and / or 6B. one or more of the microphones, such as any of the electronic circuits described herein with respect to The microphone 102 may include a main body 101 that can house other components of the microphone. 100 may further include a windscreen 102 that covers the microphone element. do.

[0033] The body 101 may include a ring portion 103 or other portion, and / or A user interface 104 may be located in or within the The device 104 may be, for example, a device that is operated by a user through touch (e.g., tapping and moving a user's finger). Capacitive touch interface that can be controlled by tapping and / or sliding The user interface 104 may be configured as 101 in which the nozzle 104 is disposed. For example, If the main body 101 is curved, the user interface 104 is also curved. It may be curved in the same way as the part.

[0034] The body 101 may be connected (e.g., attached) to a holder 105, such as a yoke. The mount can be used to mount the microphone to a desk, wall, or other surface. Cut.

[0035] The main body 101 has one or more connectors, such as connectors 106a and 106b. A connector (generally referred to herein as one or more connectors 106) ) may, for example, have one or more USB connectors, one or more XLR connectors, one or more Power connector and / or power, digital data (including digital audio signals) ), and / or analog audio signals, to the circuitry of the microphone 100. Any other type of data and / or power connector suitable for interfacing with In one embodiment, connector 106a may be an XLR connector. Preferably, the connector 106b may be a USB connector.

[0036] FIG. 2 illustrates a microphone, such as microphone 100, according to an embodiment described herein. 1 is a block diagram illustrating an exemplary interconnection between the phone and one or more other devices. In this example, Microphone 100 is connected via an XLR cable (e.g., via connector 106a) Shown connected to another XLR compatible microphone 201. Other microphones The microphone 201 receives an audio signal representative of the sound detected by the other microphones 201. , can be transmitted to the microphone 100 via an XLR cable. The microphone 100 connects the audio signal on the XLR cable to the microphone The audio signal may be combined with an audio signal representative of the sound detected by the microphone element. What type of microphone element is used, such as a dynamic element or a condenser element? The microphone element may be a microphone element.

[0037] The microphone 100 can also be connected to a computer via a USB cable (e.g., connector 106b). The device 202 may be connected to another device (via a Smartphones (e.g., iPhone or Android mobile phones), Tablet computers, laptop computers, desktop computers, servers As will be described later, the microphone 100 may include a digital signal processing system (DSP), and device 202 may include a via a signal transmitted over a USB cable connected between the microphone 100 and the and one or more of the microphones 100, including in which mode the DSP is operating. In addition to transmitting configuration information, the USB cable may also be used to control the settings of , and is also used by microphone 100 to transmit a digital signal representative of the audio. For example, the DSP of the microphone 100 may receive the signals from the other microphones 201 to X. The audio signal received via the LR cable and the microphone The DSP may process both the audio signal resulting from the sound detection by the microphone element and the audio signal. The digital signal resulting at least in part from the Therefore, the microphone 100 (connected to another microphone 201) The XLR connector (which may be passive) allows the user to connect other microphones. Connect the output from the XLR connector of Microphone 201 to the XLR connector of Microphone 100. The microphone may be configured to be easily chained. The microphone 100 can be expanded to include multiple microphones (in this example, Microphones are designed to be part of a larger setup using the 100 and 201 microphones. One or more of the connectors on the phone 100 may be used for convenience.

[0038] Although a USB connection between the microphone 100 and the device 202 has been described, other types of wired connections may also be used. Alternatively, a wireless connection may be used. For example, the connection between the microphone 100 and the device 202 Instead, you can use a WiFi connection, a Bluetooth connection, or a Near Field Communication (NFC) connection. FC), and / or a wireless connection such as an infrared connection. The microphone 100 and the device 202 may include a wireless communication interface. Cut.

[0039] The Microphone 100 can also be connected via another connector, such as a separate XLR connector. It may be connected to one or more other devices, such as another XLR compatible device 203. Examples of conversion devices include additional microphones, mixers, amplifiers, and computing devices. It may include a measuring device, etc.

[0040] FIG. 3 illustrates one or more portions of an exemplary microphone, such as microphone 100. In the illustrated example, the microphone 100 includes one or more XL R connector (indicated as "XLR output" in the diagram; also, like connector 106a, as explained above) one or more connectors 106, each of which may include one or more microphone elements. At least one microphone cartridge capable of holding a 3.5mm stereo audio Audio outputs such as a stereo jack connector, microphone preamplifiers, and headphones amplifiers and / or line drivers, capacitive touch interface (which The user interface 104 may be as described above, as well as one or more USB devices. One or more USB connectors, such as a Micro-B connector or a regular USB connector. connector (one of the connectors 106 already described, such as connector 106b) In Figure 3, several configurations of XLR connections are shown as examples. Several output configurations and several USB connection types are also specified.

[0041] 4A and 4B illustrate one or more exemplary microphones, such as microphone 100. 1 shows another exemplary block diagram of several parts. In the example shown, The audio subsystem function (referred to herein as "audio subsystem 40") is 1) and digital subsystem functions (referred to herein as "digital subsystem 402"). It can also be thought of as being logically divided into two parts:

[0042] The audio subsystem 401 receives and transmits audio and digital signals representing the audio. The digital subsystem 402 and the physical subsystem 403 can be responsible for routing and processing. The audio subsystem 401 may share circuit components with the microphone cartridge, one or more of the XLR connectors mentioned above, and the audio jacks mentioned above (including may be a stereo headphone jack), and the aforementioned microphone preamplifier The system may include a front end including:

[0043] The audio subsystem consists of amplifiers ( For example, adjustable gain amplifiers, input mixers, analog-to-digital converters (ADCs), Digital-to-analog converter (DAC), control register 420, I2C interface, etc. Which data interface, serial I2S interface 406 etc. audio It may further include circuitry such as an interface and a DSP 403. As shown, the audio path is from the microphone cartridge or XLR connector ( analog audio signal), passes through the input mixer, is digitized by the ADC, and A digital audio signal is generated, passed through the DSP, then through a set of amplifiers, and finally through the DSP for processing. It is provided as PCM digital audio data encoded in a serial audio I2S interface. The controller 404 (FIG. 4B) is connected to the CODEC 405 via the interface 406. This may be implemented as a system on a chip (SoC), for example. Digital audio and / or other data can be transmitted in both directions over an I2S connection. (from CODEC 405 to Controller 404 and / or Controller 405) 4A and 4B may be transmitted from the CODEC 404 to the CODEC 405. , can be implemented, for example, as a programmable gate array (PGA). Examples of amplifier components realized by multiple PGAs include those labeled "PGA" in Figure 4A. Some or all of the circuits described above are implemented in an integrated circuit device, CODEC 405. It may be embodied as part of

[0044] The CODEC405 provides an adjustable gain stage for the audio input and / or may include a mixer. For example, the PGA integrated amplifier shown for microphone input The amplifier component has an adjustable gain (Adj Gain) of approximately 36 dB. The line input may have an adjustable gain, for example, about 6 dB. The ADC can also have a dual microphone input, A combination of microphone and line inputs, or dual line inputs (e.g. It is also possible to simultaneously accept two channels in each of these situations. The integrated PGA amplifier component connects each leg of the microphone 100 to the same input impedance. A variable impedance is provided so that both PGAs can be cross-connected to achieve the desired impedance. The amplifier may have a non-inverting input with a differential input.

[0045] The digital subsystem 402 interconnects the circuits of FIG. 4A and FIG. 4B. Analog audio subsystem 401 via one or more signal lines, as shown The digital subsystem 402 can be interconnected with the microphone 100. It has overall control and contains components such as one or more processors The controller 404 may also include one or more of the controllers described above and shown in FIG. The PGA can be embodied as follows.

[0046] The controller 404 controls the digital subsystem 402 and the analog subsystem 404. Various signal inputs and outputs for communication with other parts of 01, e.g., the inputs shown in Fig. and outputs. For example, the audio subsystem 401 may provide The digital audio signal is then routed to the The information may be received by the controller 404, resulting in processing and / or The digital signal is then sent from the controller 404 to the USB interface ( The data may be passed to the USB connector 106b via the USB IF (shown as "USB IF" in the figure). Therefore, the audio path within the audio subsystem 401 is and a USB connector 106b, and finally, the controller 40 4 and the USB connector 106 marked "Data +" and "Data -" The resulting audio data can be transmitted via the USB connector 10 These "Data+" and "Data-" lines connected to 6b are the audio data In addition, control signals can be transmitted bidirectionally between the microphone 100 and the control signal. The controller 404 implements both iAP and standard USB audio endpoints. The on-board MCU407 is used for system control. It may also be linked to iAP control.

[0047] The controller 404 also includes one or more processors for performing various functions. The controller 404 may include a non-transient Any computer-readable storage medium (such as memory) that may be part of MCU 407 or that may be part of MCU 407 07) contains executable code (e.g. The controller 404, or at least its When executed by one or more processors, the code causes the controller 404 to: The steps defined by the code can be executed.

[0048] As also shown in FIG. 4B, the user interface 104 includes a corresponding driver 410 and / or a plurality of (e.g., seven) capacitive sensors 408 having 21) indicator lamps (e.g., LEDs) 409. and / or other indicators) are, for example, user interface 104 in FIG. 1A. The user interface, shown as a series of black dots on the The indicator light and / or the indicator lamp may be controlled by the MCU 407. 7 is connected to a capacitive sensor via a controller such as a capacitive sensing controller 411. This can assist in controlling the

[0049] FIG. 5 illustrates one or more portions of an exemplary microphone, such as microphone 100. 10. In this block diagram, the XLR connector 106a is connected to the Analog output / input, analog output to headphone (HP) jack 501, and US microphone 100 audio output, including both the Figure 5 shows an example of an output chain shown from different logical and functional perspectives. At least one of each of the audio subsystem 401 and the digital subsystem 402 4 includes a block diagram of a system, specifically shown from the perspective of an audio subsystem 401.

[0050] 7A and 7B are diagrams illustrating an example microprocessor including at least some details of DSP 403. 1 is another exemplary block diagram of one or more portions of a microphone (e.g., microphone 100). The DSP 403 controls, for example, the high-pass / presence boost equalizer 702 and and / or one or more equalizers, such as mode equalizer 703, de-edge 704, bass equalizer (which can be used to reduce the proximity effect) 705, Riser, Limiter 706, Compressor 707 and / or Automatic Level Control Includes one or more modules for audio processing, including ALC 708 Each of the modules 702 to 708 can be implemented as a dedicated physical circuit, for example. and / or one or more processors, such as a processor that is part of the controller 404. The present invention may be embodied as software executed by a processor.

[0051] As previously mentioned, DSP 403 can operate in one of several modes. Each of the modes involves different settings for any or all of the modules 702-708. It can be associated with any combination or sub-combination of the desired DSP mode. To configure the modules 702-708 according to the settings, Each of 708 is represented in FIG. 7A as "dspMode(n)", where n is the mode setting signal. The mode setting signal 701 may indicate the dimension of the mode setting signal 701. For example, the mode setting signal 701 and / or or another signal is a packet (e.g., For example, bus packets), each of which may be represented by one or more bits or bytes. It may be represented as n parallel conductive lines carrying data for each bit. The setting signal 701 and / or another signal may be used to set the settings for each of the modules 702-708. For example, the mode setting signal 701 and / or another signal may indicate , a specific setting in module 702, another specific setting in module 703, module 70 Another specific setting of module 704, another specific setting of module 705, another specific setting of module 706 707, another specific setting of module 708, and / or another specific setting of module 709. Examples of such settings are discussed further below.

[0052] A detailed implementation of the de-esser 704 and bass control 705 is shown in FIG. 7B.

[0053] Figure 8 shows an example of a flowchart of a method that can be performed. Some of the steps are The other steps may be performed by a microphone (such as microphone 100). may be performed by a device (such as device 202) connected to the microphone, Still other steps may be performed by the user of the device and / or microphone. Although the method depicts certain steps in a particular order, the method may be performed without Further sub-steps may be used without necessarily departing from the concepts described herein. Steps may be combined and steps may be performed in other orders.

[0054] In operation, the user connects the USB connector of the device 202 to the Microphone 1 is connected to USB connector 106b via a USB cable or similar. 00 can be connected to the device 202 (FIG. 8, step 801). , software configured to control one or more settings of the microphone 101. A program (e.g., an app) may be executed on the device 202 (step 802). For example, when the software is executed, it determines the DSP mode in which the microphone 100 should operate. To make a selection, the user must use a The device 202 may display a user interface with which the user can interact (through the (Step 803) An example of such a user interface is shown in FIG. In response to the user's selection, device 202 transmits the user's selection via the USB cable. transmitting a control signal (e.g., data) indicating one or more DSP mode settings in response to the This control signal is transmitted to the USB connector of the microphone 100 (step 804). It can be received on -106b.

[0055] Next, the control signal at the USB connector 106b is sent to the USB interface (Fig. 4B). The received USB control signal can be presented to the MCU 407 for processing. In this case, the MCU 407 can generate mode setting data (step 805), which are identified in FIGS. 4A and 4B for storage by one or more control registers 420. This stored mode setting data can be sent via the "I2C data" connection. The data can be extracted and used as the mode setting signal 701 (step 806). The mode setting signal 701 includes "InputGain()", "se Others such as "tBlock(Limiter)" and "setBlock(Comp)" The data may also be included or supplemented to set the DSP mode (step 807 Based on the mode setting signal 701 and / or such other signals, the DSP 403 may be used in conjunction with a microphone, including configuring some or all of modules 702-708. Sound and / or other audio signals detected by the microphone 100 (including other microphones) 201) (Step 808). As further described below, each mode can be manually or manually selected by the user. The DSP403 itself can automatically and dynamically adjust within modes without the need for manual intervention. The user may have one or more settings for another DSP (step 809). If a mode is selected, the process in Figure 8 continues to step 8 for the next DSP mode selection. Return to step 03 and the rest of the process can be repeated as needed.

[0056] FIG. 9 illustrates a device connected to a microphone, such as device 202 connected to microphone 100. 9 illustrates an exemplary user interface 900 that can be displayed by a device. The user interface 900 is a user interface with which the user interacts for step 803. However, it is possible to select the DSP mode and Alternatively, you can use other user interfaces to configure the Step 803 can also be performed.

[0057] The user interface 900 may include, for example, drop-down menus, Select one or more microphones (e.g., microphone 100) connected to The microphone may include a microphone selection unit 901 that can be used to select a microphone. The user interface 900 allows the user to select between automatic DSP mode operation and manual DSP setting operation. An automatic / manual selector 902 may be provided that can be used to select the automatic DSP mode. In operation, the user can select from multiple predefined DSP modes provided and The DSP 403 can be configured according to the P mode. The user can manually configure each of the multiple DSP settings.

[0058] The user interface 900 is configured to receive the sound detected by the microphone 100. Microphone mute switch that can be used to selectively mute the The user interface 900 may further include a monitor mix setting section 904. The setting may further include a slider bar or other setting 905, which may be adjusted in real time. For monitoring purposes (e.g., detected by a microphone cartridge), sound and / or sound received from another microphone via XLR connector 106a (based on how much of the microphone 100 outputs audio signal to the headphone jack) This can be used to select the mix or ratio of what to send to the 501. This allows the user to hear the audio in real time through the processing chain and over headphones. It is possible.

[0059] The user interface 900 is configured to receive the microphone 100 from the sound source (e.g., the intended distance (or distances) from the person speaking or singing towards the microphone 100 Microphone position settings (sliders) that can be used to select the distance range "within 6 inches" and "6-18 inches" Although the specific distance "a distance of 1000mm" was shown as a setting candidate, other distances were not shown as setting candidates. It can also be done as follows.

[0060] The user interface 900 is available in dark tones, neutral tones, and / or or bright tones. It may further include a setting (eg, a slider bar) 907 .

[0061] As previously described, the DSP 403 can be configured to operate in multiple DSP modes. Multiple DSP modes can be used, for example, each for a specific microphone distance ( (e.g., close distance, such as within 6 inches, versus far distance, such as 6-18 inches away) Composed as a combination of tones (e.g. dark vs. neutral vs. bright) In this configuration, multiple DSP modes can be used, for example, proximity-neutral Light mode, Melee - Dark mode, Melee - Bright mode, Long-range - Neutral mode Includes six DSP modes: Far-distance mode, Far-distance dark mode, and Far-distance bright mode. It can be done.

[0062] Based on the selected DSP mode, the DSP403 can To provide the desired output audio signal for various audio applications, You can adjust one or more of the settings: Proximity mode (e.g., Proximity-Neutral) (Proximity Dark, Proximity Bright) can be used to reduce the amount of proximity effect and sibilance, for example. It may include multi-band compression and / or EQ settings aimed at reducing the overall signal level. Long-range mode (e.g., Long-Neutral, Long-Dark, Long-Bright) For example, a unidirectional microphone is used from a given distance (e.g., greater than 12 inches). It's designed to increase the low-end you experience when using the phone and reduce its thinness. Multi-band compression (using the Compressor module 707) and / or equalization (EQ) Settings (using the mode averaging module 702) can also be included. Depending on the tone scenario (e.g., neutral, dark, bright), the tone adjustment For example, to provide users with a dark or bright sound based on individual preferences. In addition, the DSP mode allows users to Provides more consistent volume at different distances from the phone and at different speaking levels An automatic level control (using module 708) for

[0063] More specifically, each of the DSP modes provides a different combination or sub-set of audio settings. Some or all of these may be associated with the mode setting signal 7. 01 and may be implemented by the DSP 403. Examples of audio settings that can be configured include: This includes settings for, for example, automatic level control settings, de-esser settings, etc. , which may include bass control settings, limiter settings, and / or equalizer settings. Each setting is explained below.

[0064] ALC (Automatic Level Control) is a method for adjusting the desired output signal. This is a method of adjusting the amplifier gain according to the level. This allows the ALC module 708 to adjust the signal-to-noise ratio of the audio output to a desired level. The automatic level control setting provides a way to maintain (e.g., maximize) Attack, hold, decay, and more, depending on which of several DSP modes is selected. Set the Gain, Max Gain, and / or Target Gain parameters to specific values. Table 1 below shows an example of such an ALC module 708 setting. That is why. [Table 1]

[0065] For example, values ​​A1 to A6 range from about 10 to about 50 milliseconds, and values ​​H1 to H6 range from about 1 to about 2 seconds. The range of values ​​D1 to D6 is approximately 500 to approximately 1000 milliseconds, and the range of values ​​MG1 to MG6 is approximately +1 The range is 0 to approximately +20 decibels, and values ​​TG1 to TG6 are in the range of approximately -5 to approximately -12 decibels. Each of the above values ​​may be different depending on which of several DSP modes is selected. The ranges are examples only and are not intended to limit the values ​​that can be used, but are appropriate values. will depend on the particular characteristics of the microphone 100.

[0066] As previously explained, some or each of the DSP modes may be implemented using one or more of the DSP modes. a number of parameters (e.g., any of the audio settings described herein) over time. Dynamic intra-mode adjustments As an example, the automatic level control The settings are made within a given DSP mode and are based on the designated target associated with the given DSP mode. Achieve a gain (e.g., one of TG1-TG6) and associate it with a given DSP mode. to stay below the specified maximum gain (e.g., any of MG1-MG6). , the parameters Attack, Hold and / or Decay can be dynamically adjusted May be automatically adjusted. Additionally or alternatively, other parameters in the DSP mode may be adjusted. Target gain and / or maximum gain for automatic level control compared to adjacent DSP mode and keep it at a high level (e.g., high decibel level) in far-field DSP mode. Additionally, automatic level control settings can be configured to automatically adjust the input level to a predetermined threshold (e.g., about -50 to about Noise level is set to keep the gain constant when the noise level drops below -60 dB. It may also include a gate to reduce or avoid excessive gain in the noise floor.

[0067] De-essing reduces the sibilant constants ('s', 'ch', 'z', 'sh') in the recording. ) is a technique used to reduce the The de-esser module 704 may be implemented using a de-esser. can be used to configure the extractor module 704, e.g., Attack, which is the parameter where band and de-essing should be performed automatically, Decay, Ratio, and / or Threshold can be set to specific values, each with multiple DSP modes. The ratio parameter can be set according to which of the following parameters is selected: This determines how much compression is applied to the incoming audio signal after it exceeds the threshold. The following table 2 shows the compression parameters of the de-esser module 704: This is a collection of configuration examples. [Table 2]

[0068] By way of example, the values ​​EB1 through EB6 may be specific frequencies ranging from about 3 to about 10 kilohertz. and values ​​A7-A12 may range from about 3 to about 100 milliseconds, and values ​​D7-D12 may range from about 3 to about 100 milliseconds. The values ​​R1 to R6 may range from about 1 to about 2. The values ​​T1 to T6 may be in the range of about -40 to about -20 decibels. The ranges are examples only and are not intended to limit the values ​​that can be used, so please The value will depend on the particular characteristics of the microphone 100 .

[0069] Bass control is a technique for dynamically reducing low-frequency signals in a recording. (Figure 7B) As shown in FIG. 7, the bass control module 705 adjusts the bass level as the user approaches the directional microphone. Multi-band filtering (also known as the proximity effect) can smooth out the low frequency increase when You can achieve this by using a bass compressor. The module 705 may be configured to, for example, automatically perform a bumming stay. The parameters that control the crossover, attack, hold, decay, ratio, and The ratio parameter can be set to a specific value and / or the threshold parameter. Compression parameter that determines the amount of compression applied to the input audio signal after it exceeds the threshold. Table 3 below summarizes some example settings for such a bass controller module 705. That is why. [Table 3]

[0070] By way of example, values ​​C1 through C6 may range from about 100 to about 300 Hz or may be invalid. The values ​​A13 to A18 may range from about 10 to about 100 milliseconds, and the values H7-H12 may range from about 10 to about 40 milliseconds, and values ​​D7-D12 may range from about 50 to about 1000 milliseconds, and values ​​R7 to R12 may range from about 2 to about 3. and values ​​T7 to T12 may range from about -20 to about -35 decibels, The above values ​​may vary depending on which of the DSP modes is selected. The ranges are examples only and are not intended to limit the values ​​that can be used, but are appropriate values. will depend on the particular characteristics of the microphone 100.

[0071] The limiter module 706 is used to prevent clipping of the audio signal. The limiter settings (Limiter module 7) can be configured as a compressor. 06) are the parameters that the limiter should automatically implement. You can set the attack, hold, decay, and / or threshold to specific values. Table 4 below shows an example of such a limiter module 706 setting. do. [Table 4]

[0072] By way of example, values ​​A19-A24 may range from about 50 to about 100 milliseconds, and value H1 H3 to H18 may range from about 0 to about 20 milliseconds, and values ​​D13 to D18 may range from about 500 to about 600 milliseconds. The range may be about 1000 milliseconds, and the values ​​T13 to T18 may be about -2 to about -5 decibels. The range may be different, and each of the multiple DSP modes may be selected. In one example, the attack, hold, decay, and threshold values ​​are In other examples, the above six DSP modes may be the same for all six DSP modes. The above value ranges are only examples and do not limit the values ​​that can be used. The appropriate values ​​will depend on the specific characteristics of the microphone 100. This becomes the case.

[0073] Averaging is the selective boosting or de-boosting of specific frequencies. The boosting or de-boosting can be static. Or it may be adjusted over time (usually relatively slowly). The averaging settings for the Mode Equalizer module 703 and / or HP Pre Sense Boost EQ module 702 (the latter reduces high-mid frequencies (e.g., around 4k) Hz to approximately 8 kHz), and set the averaging parameters for one or more frequency bands. For example, a DS A P-mode is associated with one or more frequency bands that are equalized in a specific way. For each frequency band of a given DSP mode, a specific filter can be specified. Filtering type (e.g. high-pass filter, low-shelf filter, or peak ing filter) and a specific value of boost / cut and / or Q parameter There may be a meter. [Table 5]

[0074] By way of example, values ​​B1-B6 may be low frequencies, such as in the range of 50-100 Hz. It may be a high frequency wave, such as in the hundreds or thousands of hertz range. ~T6 values ​​are used for high pass filters, low shelf filters, peaking filters, etc. For example, the values ​​BC1 to BC6 are approximately -3 to The values ​​Q1 to Q6 may range from about 0.5 to about 2. The value ranges listed are examples only and are not intended to limit the values ​​that can be used. The appropriate value will depend on the particular characteristics of the microphone 100 .

[0075] Each of the above DSP modes is similar to the "Auto" setting 902 in the user interface 900. As shown, the user can select the desired setting via the user interface of the control device 202. However, the user may alternatively select Use the "Manual" setting 902 to adjust any or all of the above parameters. It may be set manually (e.g., overriding a previous automatic setting), which The user can set any desired parameter value for any of the modules 702-708. It will present a user interface for manual configuration. Alternatively, the user may select the desired DS, such as via the user interface 104. You can set the P-mode and / or any of the above values ​​directly on the microphone. It may be possible.

[0076] FIG. 6 is a block diagram illustrating an example of a computing device 600. The recording device 600 may include at least a portion of the device 202 and / or the microphone 100. For example, the controller 40 Part or all of 4, part or all of MCU407, part or all of DSP403, and / or any supporting circuitry thereof, part or all of which may alternatively be computing The computing device 600 may be implemented by any type of It may be a group of computing devices, operating as a single unit or as multiple interconnected units. It may be physically implemented as a system of operating units. The mobile device 600 may include one or more smartphones, one or more tablet computers, one or more laptop computers, one or more desktop computers A computer and / or audio device with computing capabilities The computing device 600 of FIG. The box drawn around it limits computing device 600 to a single physical unit. The present disclosure is not intended to limit the scope of the present disclosure to a single physical housing.

[0077] In the illustrated example, computing device 600 may include a processor 601, It itself consists of one or more microprocessors, CPUs, MCUs, etc. It may be physically implemented by multiple processors. may further comprise a data storage 602, which may include one or more memories ( For example, RAM, ROM, FLASH (registered trademark), hard drive, removable One or more computer hard drives, which may be non-transitory, such as hard drives, memory sticks, etc. The computing device 600 may be implemented as a display. input device 603 such as a touch interface, mouse, keyboard, or voice control device The computing device 600 may further include an output device such as a display device 605. The display device may further include a device controller 604 for controlling the display device. The display device 605 may be touch sensitive, in which case the display device 605 may be connected to the input device 605. The computing device 600 may also serve as the computing device 600 and a data interface 606 for communicating with one or more devices external to the For example, the data interface 606 can be a USB interface, an X LR interface, and / or wireless interface (e.g., WiFi, Bluetooth) For example, the data may be stored in a secure location. The interface 606 is an XLR interface for the other microphone 201, 202 USB interface, XLR compatible device 203 XLR interface, U USB interface 421 on the USB connector 106b and / or XLR connector The XLR interface of the terminal 106a may be implemented.

[0078] The data storage 602, when executed by the processor 601, Computer executable instructions that can cause the operating device 600 to perform various steps. For example, the microphone 100 may store a When this occurs, the instruction is sent to the microphone 100 to perform any or all of steps 805-809. and / or any other functionality of microphone 100. As another example, when executed by any processor of device 202, The instructions cause the device 202 to perform any or all of steps 802-804, and and / or perform any other function of device 202.

[0079] The data storage 602 may also store other data. If data storage 602 is part of device 202, data storage 602 may be The operating system and / or software application that performs steps 802-804 application, user settings such as preferred DSP mode, software application A list of previously configured microphones (e.g. microphone 100), communication protocols, settings, and / or data supporting any other functionality of the device 202. If the data storage 602 is part of the microphone 100 The data storage 602 may include, for example, the control registers 420 and / or or DSP mode selection and setting, any other settings of the DSP403, communication protocol settings configuration, and / or any other functionality of the microphone 100. Either one may be stored.

[0080] Although the embodiments have been described above, the features and / or steps of these embodiments may be implemented in any manner. You may combine, divide, omit, rearrange, modify, and / or expand in any way you wish. Those skilled in the art can easily make various changes, modifications, and improvements. Such changes, modifications and improvements, although not expressly described herein, are intended to be included herein. and is intended to be part of and within the spirit and scope of the present disclosure. The description is illustrative and not limiting.

Claims

1. a microphone element configured to detect sound; a first digital signal processing mode based on the sound according to a selected one of a plurality of digital signal processing modes; 1. A digital signal processor configured to process an audio signal, comprising: Each of the number of digital signal processing modes processes the first audio signal in a different manner. and for performing the selected one of the plurality of digital signal processing modes. A digital signal processor that automatically adjusts one or more of the parameters based on a target gain. With the sessioner, the first audio signal processing mode according to the selected one of the plurality of digital signal processing modes; a first connector configured to output a digital signal resulting from processing the audio signal; and A microphone comprising:

2. Each of the plurality of digital signal processing modes includes a microphone position setting and a tone setting.

10. The microphone of claim 1, comprising different combinations of:

3. Each of the plurality of digital signal processing modes includes a gain control setting, an averaging setting, a de-edge setting, and a At least one of the following settings: Singing setting, Bass setting, Limiter setting, or Audio Compression setting The microphone of claim 1 , wherein the microphone is associated with different settings, including one.

4. 10. The microphone of claim 1, wherein the microphone is a directional dynamic microphone. microphone.

5. a capacitive microphone configured to manually adjust at least one setting of the microphone; The touch screen further comprises a body including a touch interface, the body having a curved profile. and the capacitive touch interface is adapted to conform to the curved contour.

2. The microphone of claim 1, wherein the microphone is curved so as to

6. 10. The method of claim 1, wherein the first connector is a Universal Serial Bus connector. Built-in microphone.

7. each of the plurality of digital signal processing modes is associated with a different target gain; 10. The microphone of claim 1.

8. The first connector is connected to the selected one of the plurality of digital signal processing modes.

10. The machine of claim 1, configured to receive a control signal indicative of one of the devices from another device. Microphone.

9. The first connector is a Universal Serial Bus connector, and the analog first 2. The microphone further includes an XLR connector configured to receive a The jack is connected to the Universal Serial Bus connector via the XLR connector. Both the analog second audio signal and the first audio signal received by 10. The microphone of claim 1, configured to output a digital signal based on hmm.

10. The one or more parameters may be one or more of attack, hold, or decay.

10. The microphone of claim 9, wherein the microphone is selected from:

11. A first audio signal is generated based on the sound detected by the microphone element of the microphone. generating an audio signal; A switch to select the selected digital signal processing mode from multiple digital signal processing modes. each of the plurality of digital signal processing modes performs the first digital signal processing in a different manner; and a step for processing the audio signal of One or more parameters of the selected digital signal processing mode are adjusted to a target gain. automatically adjusting based on the The microphone adjusts the digital signal according to the selected digital signal processing mode. a digital signal of the first audio signal using the adjusted one or more parameters; performing signal processing; The digital audio based on the digital signal processing performed by the microphone generating an audio signal; outputting the digital audio signal through a first connector of the microphone; Steps and A method comprising:

12. Each of the plurality of digital signal processing modes includes a microphone position setting, a tone setting, and The method of claim 11 , comprising the combination of:

13. Multiple digital signal processing modes, each with averaging, de-essing, and bass settings , limiter settings, or audio compression settings. The method of claim 11 , wherein the

14. 12. The method of claim 11, wherein the first connector comprises a Universal Serial Bus connector. The method described.

15. The method further includes receiving a control signal via the first connector, The step of selecting the selected digital signal processing mode based on the control signal.

12. The method of claim 11, comprising:

16. receiving a second audio signal via a second connector of the microphone; and the step of performing digital signal processing further comprises: Thus, the first audio signal and the and performing digital signal processing of the second audio signal. The method described.

17. By the first microphone, from the second microphone via an XLR connector receiving an audio signal; detecting a sound with the first microphone; Both the audio signal received via the XLR connector and the detected sound outputting a digital signal based on the digital signal via a universal serial bus connector; A method comprising:

18. A switch to select the selected digital signal processing mode from multiple digital signal processing modes. Step, and According to the selected digital signal processing mode, digital signal processing of the extracted sound and the audio signal from the second microphone; Executing the process to generate a digital signal 18. The method of claim 17, comprising:

19. one or more parameters of the digital signal processing mode based on the target gain The method of claim 18 , further comprising adjusting:

20. The selecting step includes receiving a signal via the Universal Serial Bus connector. selecting the selected digital signal processing mode based on the control signal.

20. The method of claim 18.

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