WO2018090343A1 - 麦克风、音频处理的方法及装置 - Google Patents
麦克风、音频处理的方法及装置 Download PDFInfo
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- WO2018090343A1 WO2018090343A1 PCT/CN2016/106461 CN2016106461W WO2018090343A1 WO 2018090343 A1 WO2018090343 A1 WO 2018090343A1 CN 2016106461 W CN2016106461 W CN 2016106461W WO 2018090343 A1 WO2018090343 A1 WO 2018090343A1
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- electrical signal
- sound pressure
- digital electrical
- pressure level
- sound
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R19/00—Electrostatic transducers
- H04R19/04—Microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
Definitions
- the present invention relates to the field of communication and computer processing, and in particular, to a microphone, an audio processing method and apparatus.
- the present invention provides a microphone, a method and an apparatus for audio processing.
- a microphone including:
- a first sound sensor configured to receive a sound signal of a first sound pressure level range, and convert the sound signal into an analog electrical signal
- a second sound sensor configured to receive a sound signal of a second sound pressure level range, and convert the sound signal into an analog electrical signal; wherein, the first highest sound pressure level of the first sound pressure level range is greater than the second sound pressure level range The second highest sound pressure level.
- the present embodiment receives sound signals by two different types of sound sensors, and the applicable sound pressure level range is wider, thereby achieving high quality in a large sound pressure level range. Sound signal for more application scenarios.
- the microphone further includes:
- a first amplifier connected to the first sound sensor for amplifying an analog electrical signal
- a second amplifier is coupled to the second acoustic sensor for amplifying the analog electrical signal.
- the technical solution provided by the embodiment of the present invention may include the following beneficial effects: the signal amplification processing in the embodiment can improve the subsequent signal processing quality.
- the microphone further includes:
- a first analog-to-digital converter coupled to the first sound sensor or the first amplifier, for converting an analog electrical signal into a digital electrical signal, and outputting the first digital electrical signal;
- a second analog to digital converter coupled to the second or second amplifier for converting an analog electrical signal to a digital electrical signal and outputting a second digital electrical signal.
- the present embodiment helps to improve the quality of subsequent signal processing by converting into digital signals.
- the microphone further includes:
- the digital signal processor is coupled to the first analog to digital converter and the second analog to digital converter for outputting a digital electrical signal based on the first digital electrical signal and the second digital electrical signal.
- the embodiment may select a digital electrical signal output with better quality from the first digital electrical signal and the second digital electrical signal to improve the output digital electrical signal. quality.
- the second highest sound pressure level of the second sound pressure level range is equal to or greater than the first lowest sound pressure level of the first sound pressure level range.
- the technical solution provided by the embodiment of the present invention may include the following beneficial effects: in the embodiment, the sound pressure levels of the two specifications of the sound sensor are seamlessly connected, and the range of the sound pressure level can be covered, and the sound pressure level can be covered in a larger range. Receive high quality sound signals.
- a method for audio processing including:
- first digital electrical signal receives a first digital electrical signal and a second digital electrical signal
- first digital electrical signal is converted by a sound signal received by the first sound sensor
- second digital electrical signal is a sound received by the second sound sensor
- the signal is converted, the first sound sensor operates in the first sound pressure level range, the second sound sensor operates in the second sound pressure level range, and the first highest sound pressure level in the first sound pressure level range is greater than the second sound pressure level The second highest sound pressure level of the range;
- a digital electrical signal is output according to the first digital electrical signal and the second digital electrical signal.
- the present embodiment obtains digital audio signals of two channels of audio from two different specifications of sound sensors, and obtains digital electrical signals of a large sound pressure level range, so that the output The quality of digital electrical signals is higher.
- the outputting a digital electrical signal according to the first digital electrical signal and the second digital electrical signal comprises:
- the output is a digital electrical signal
- the output is Two digital electrical signals.
- the technical solution provided by the embodiment of the present invention may include the following beneficial effects: the present embodiment selects a digital audio signal output with a higher quality for different sound pressure level ranges, and the obtained sound quality is better.
- the second highest sound pressure level of the second sound pressure level range is greater than the first lowest sound pressure level of the first sound pressure level range
- the outputting a digital electrical signal according to the first digital electrical signal and the second digital electrical signal includes:
- a digital electrical signal output is selected from a digital electrical signal and a second digital electrical signal.
- the technical solution provided by the embodiment of the present invention may include the following beneficial effects: the present embodiment selects a digital audio signal output with a higher quality for different sound pressure level ranges, and the obtained sound quality is better.
- the selecting a digital electrical signal output from the first digital electrical signal and the second digital electrical signal comprises:
- a digital electrical signal output with a relatively high signal-to-noise ratio is selected from the first digital electrical signal and the second digital electrical signal.
- the second highest sound pressure level of the second sound pressure level range is greater than the first lowest sound pressure level of the first sound pressure level range
- the outputting a digital electrical signal according to the first digital electrical signal and the second digital electrical signal includes:
- a digital electrical signal and a second digital electrical signal are smoothly combined to output a smooth synthesized digital electrical signal.
- the technical solution provided by the embodiment of the present invention may include the following beneficial effects: the present embodiment selects a digital audio signal output with a higher quality for different sound pressure level ranges, and the obtained sound quality is better.
- an apparatus for audio processing including:
- a receiving module configured to receive the first digital electrical signal and the second digital electrical signal, wherein the first digital electrical signal is converted by the sound signal received by the first sound sensor, and the second digital electrical signal is obtained by the second sound
- the sound signal received by the sensor is converted, the first sound sensor operates in a first sound pressure level range, the second sound sensor operates in a second sound pressure level range, and the first highest sound pressure level in the first sound pressure level range is greater than a second highest sound pressure level of the second sound pressure level range;
- a processing module configured to output a digital electrical signal according to the first digital electrical signal and the second digital electrical signal.
- the processing module includes:
- a first processing submodule configured to: when the sound pressure levels of the first digital electrical signal and the second digital electrical signal belong to a first highest sound pressure level of the first sound pressure level range and a second highest sound level of the second sound pressure level range Outputting a first digital electrical signal between voltage levels;
- a second processing submodule configured to: when the sound pressure levels of the first digital electrical signal and the second digital electrical signal belong to a first lowest sound pressure level of the first sound pressure level range and a second lowest sound level of the second sound pressure level range A second digital electrical signal is output between the pressure levels.
- the second highest sound pressure level of the second sound pressure level range is greater than the first lowest sound pressure level of the first sound pressure level range
- the processing module includes:
- a third processing submodule configured to: when the sound pressure levels of the first digital electrical signal and the second digital electrical signal belong to a first lowest sound pressure level of the first sound pressure level range and a second highest sound level of the second sound pressure level range When between the voltage levels, one digital electrical signal output is selected from the first digital electrical signal and the second digital electrical signal.
- the third processing sub-module randomly selects one digital electrical signal output from the first digital electrical signal and the second digital electrical signal; or selects from the first digital electrical signal and the second digital electrical signal a second digital electrical signal output; or, selecting a digital electrical signal having a relatively high signal-to-noise ratio from the first digital electrical signal and the second digital electrical signal Output.
- the second highest sound pressure level of the second sound pressure level range is greater than the first lowest sound pressure level of the first sound pressure level range
- the processing module includes:
- a fourth processing submodule configured to: when the sound pressure levels of the first digital electrical signal and the second digital electrical signal belong to the first lowest sound pressure level of the first sound pressure level range and the second highest sound level of the second sound pressure level range When the voltage levels are between, the first digital electrical signal and the second digital electrical signal are smoothly combined, and the smoothed combined digital electrical signal is output.
- an apparatus for audio processing including:
- a memory for storing processor executable instructions
- processor is configured to:
- first digital electrical signal receives a first digital electrical signal and a second digital electrical signal
- first digital electrical signal is converted by a sound signal received by the first sound sensor
- second digital electrical signal is a sound received by the second sound sensor
- the signal is converted, the first sound sensor operates in the first sound pressure level range, the second sound sensor operates in the second sound pressure level range, and the first highest sound pressure level in the first sound pressure level range is greater than the second sound pressure level The second highest sound pressure level of the range;
- a digital electrical signal is output according to the first digital electrical signal and the second digital electrical signal.
- FIG. 1 is a block diagram of a microphone, according to an exemplary embodiment.
- FIG. 2 is a block diagram of a microphone, according to an exemplary embodiment.
- FIG. 3 is a block diagram of a microphone, according to an exemplary embodiment.
- FIG. 4 is a block diagram of a microphone, according to an exemplary embodiment.
- FIG. 5 is a block diagram of a microphone, according to an exemplary embodiment.
- FIG. 6 is a schematic diagram showing a range of sound pressure levels, according to an exemplary embodiment.
- FIG. 7 is a schematic diagram showing a range of sound pressure levels, according to an exemplary embodiment.
- FIG. 8 is a flowchart of a method of audio processing, according to an exemplary embodiment.
- FIG. 9 is a flowchart of a method of audio processing, according to an exemplary embodiment.
- FIG. 10 is a flowchart of a method of audio processing, according to an exemplary embodiment.
- FIG. 11 is a block diagram of an apparatus for audio processing, according to an exemplary embodiment.
- FIG. 12 is a block diagram of a processing module, according to an exemplary embodiment.
- FIG. 13 is a block diagram of a processing module, according to an exemplary embodiment.
- FIG. 14 is a block diagram of a processing module, according to an exemplary embodiment.
- Figure 15 is a block diagram of an apparatus, according to an exemplary embodiment.
- FIG. 16 is a block diagram of an apparatus, according to an exemplary embodiment.
- devices such as mobile terminals and tablet computers collect audio through a microphone to realize functions such as recording and voice input.
- the microphone usually only includes one sound sensor.
- the sound sensor has a limited range of sound pressure levels and is difficult to adapt to the needs of multiple application scenarios.
- an acoustic sensor suitable for a general scene has a good quality of receiving a human voice in a quiet indoor environment, but a user who receives a sound in a noisy environment such as an outdoor or a karaoke room has a poor voice, and may be broken.
- two types of sound sensors are disposed in one microphone, and the two types of sound sensors are combined to be applicable to a large sound pressure level range, and the applicable application scenarios are also wider.
- FIG. 1 is a schematic diagram of a device of a microphone (MIC), according to an exemplary embodiment.
- the microphone includes a first sound sensor 101 and a second sound sensor 102.
- the first sound sensor 101 is configured to receive a sound signal of a first sound pressure level range and convert the sound signal into an analog electrical signal.
- a second sound sensor 102 configured to receive a sound signal of a second sound pressure level range, and convert the sound signal into an analog electrical signal; wherein the first highest sound pressure level of the first sound pressure level range is greater than the second sound pressure level The second highest sound pressure level of the range.
- the microphone in this embodiment may be an analog microphone such as a Micro MEMS (Micro EleCTRo Meganetic System) microphone.
- MEMS sensors include MEMS wafers and ASIC (Application Specific Integrated Circuit) chips.
- the MEMS wafer includes a rigid perforated backplate and a piece of flexible membrane that acts as a capacitor.
- the elastic silicon film converts sound pressure into a capacitance change.
- ASIC chips are used to detect changes in capacitance and convert them into electrical signals for transmission to related processing devices such as baseband processors or amplifiers.
- the microphone transmits an analog electrical signal of the audio to other audio processing devices in the mobile terminal.
- Other audio processing devices in the mobile terminal process the analog electrical signals.
- Other audio processing devices in mobile terminals such as amplifiers, analog to digital converters, digital signal processors, and the like.
- the first sound sensor 101 can adopt a sensor with high sound pressure level and low sensitivity, is suitable for a noisy environment, can normally receive a sound signal with a high sound pressure level, and the received sound signal is not distorted, that is, operates at a high sound pressure level.
- Second sound sensor 102 A general sensor can be used, which is suitable for a normal environment, and can normally receive a sound signal of a normal sound pressure level, and the received sound signal is not distorted, that is, operates at a normal sound pressure level.
- the first highest sound pressure level of the first sound pressure level range is greater than the second highest sound pressure level of the second sound pressure level range.
- the first lowest sound pressure level of the first sound pressure level range is greater than the second The second lowest sound pressure level in the range of sound pressure levels.
- the first sound sensor 101 and the second sound sensor 102 of different specifications are used in combination, and the sound signal of a large sound pressure level range can be received with high quality, and the quality of the received sound signal is improved. High quality sound signals can be received in more scenes.
- the microphone further includes a first amplifier 201 and a second amplifier 202.
- the first amplifier 201 is connected to the first sound sensor 101 for amplifying the analog electrical signal.
- the second amplifier 202 is coupled to the second sound sensor 102 for amplifying the analog electrical signal.
- the first amplifier 201 and the first sound sensor 101 may be integrated in one chip, and the second amplifier 202 and the second sound sensor 102 may be integrated in one chip.
- the analog electrical signal is amplified by the amplifier to facilitate subsequent acquisition of higher quality audio information.
- the microphone further includes: a first analog to digital converter 301 and a second analog to digital converter 302.
- a first analog-to-digital converter 301 coupled to the first sound sensor 101 or the first amplifier 201, for converting an analog electrical signal into a digital electrical signal, and outputting the first digital electrical signal;
- the second analog to digital converter 302 is coupled to the second acoustic sensor 102 or the second amplifier 202 for converting an analog electrical signal into a digital electrical signal and outputting a second digital electrical signal.
- the first analog-to-digital converter 301 and the first sound sensor 101 may be integrated in one chip, or the first analog-to-digital converter 301 and the first sound sensor 101 and the first amplifier 201 may be integrated in one chip.
- the second analog to digital converter 302 and the second acoustic sensor 102 may be integrated in one chip, or the second analog to digital converter 302 and the second acoustic sensor 102 and the second amplifier 202 may be integrated in one chip.
- the microphone including the analog to digital converter can be a digital microphone such as a digital MEMS microphone.
- an analog microphone or a digital microphone can be used.
- the microphone in the mobile terminal transmits an audio digital electrical signal to other audio processing devices in the mobile terminal.
- Other audio processing devices in the mobile terminal process the digital electrical signals.
- Other audio processing devices in the mobile terminal such as digital signal processors and the like.
- the structure of other audio processing devices of the mobile terminal can be simplified.
- the microphone further includes a digital signal processor 501.
- the digital signal processor 501 is coupled to the first analog to digital converter 101 and the second analog to digital converter 102 for outputting a digital electrical signal based on the first digital electrical signal and the second digital electrical signal.
- Figure 5 is an example based on Figure 4. It can also be combined with the example of Fig. 3, which is not shown in this embodiment.
- the microphone outputs a digital electrical signal to the mobile terminal through the digital signal processor 501, which simplifies the mobile terminal
- the structure of other audio processing devices, other audio processing devices may not need to be processed according to the first digital electrical signal and the second digital electrical signal, but directly process the digital electrical signal.
- the digital signal processed by the digital signal processor 501 has a high signal quality and is suitable for more application scenarios.
- the second highest sound pressure level of the second sound pressure level range is equal to or greater than the first lowest sound pressure level of the first sound pressure level range.
- the second sound pressure level range is seamlessly connected with the first sound pressure level range, and the communication constructs a wider range of sound pressure levels.
- the sound signal can be received with high quality in a range of a large sound pressure level, so that the sound signal is not distorted. Achieve normal reception of sound signals in a variety of application scenarios.
- the above describes the internal structure of the microphone, and can receive multiple sound signals through sensors of various specifications.
- devices such as mobile terminals end up using only one voice signal, so it is necessary to obtain one voice signal according to the multi-channel voice signal.
- the method of obtaining a sound signal is described below.
- FIG. 8 is a flowchart of a method for audio processing according to an exemplary embodiment. As shown in FIG. 8, the method may be implemented by a digital signal processor, including the following steps:
- step 801 a first digital electrical signal and a second digital electrical signal are received, wherein the first digital electrical signal is converted by a sound signal received by the first sound sensor, and the second digital electrical signal is obtained by the second sound
- the sound signal received by the sensor is converted, the first sound sensor operates in a first sound pressure level range, the second sound sensor operates in a second sound pressure level range, and the first highest sound pressure level in the first sound pressure level range is greater than The second highest sound pressure level of the second sound pressure level range.
- step 802 a digital electrical signal is output based on the first digital electrical signal and the second digital electrical signal.
- the digital signal processor may be located in the microphone or in other audio processing devices of the device such as the mobile terminal.
- the digital signal processor is configured to obtain a signal according to the two signals of the first digital electrical signal and the second digital electrical signal.
- step 802 includes step A1 or step A2.
- step A1 when the sound pressure levels of the first digital electrical signal and the second digital electrical signal belong to the first highest sound pressure level of the first sound pressure level range and the second highest sound pressure level of the second sound pressure level range When in between, the first digital electrical signal is output.
- step A2 when the sound pressure levels of the first digital electrical signal and the second digital electrical signal belong to the first lowest sound pressure level of the first sound pressure level range and the second lowest sound pressure level of the second sound pressure level range During the interval, the second digital electrical signal is output.
- Step A1 and step A2 may cover all ranges, that is, select one digital electrical signal from the first digital electrical signal and the second digital electrical signal.
- the first lowest sound pressure level of the first sound pressure level range is greater than the second highest sound pressure level of the second sound pressure level range, and the first sound pressure level range and the second sound pressure level range have a cross range.
- one digital electrical signal may be selected from the first digital electrical signal and the second digital electrical signal.
- the cross range see the example below.
- step 802 includes: step A3.
- step A3 when the sound pressure levels of the first digital electrical signal and the second digital electrical signal belong to the first lowest sound pressure level of the first sound pressure level range and the second highest sound pressure level of the second sound pressure level range During the interval, a digital electrical signal output is selected from the first digital electrical signal and the second digital electrical signal.
- the output of one digital electrical signal is determined in an alternative manner, and the implementation manner is simple. Because the first sound sensor and the second sound sensor can normally receive the sound signal in the cross range, the two sound signals are not distorted, and the quality of the sound signal can be ensured.
- step A3 comprises: step A31, step A32 or step A33.
- step A31 a digital electrical signal output is randomly selected from the first digital electrical signal and the second digital electrical signal.
- the random selection method is adopted, and the implementation process is relatively simple, and any digital electrical signal can satisfy the quality requirement, and the audio is not distorted.
- step A32 a second digital electrical signal output is selected from the first digital electrical signal and the second digital electrical signal.
- the intersection range belongs to the lower half of the first sound pressure level range and to the upper half of the second sound pressure level range.
- the inventors of the present application found that the sensor has a better effect on the reception of sound signals at high sound pressure levels. That is to say, in most cases, the quality of the second digital electrical signal is superior to the first digital electrical signal. Therefore, this embodiment selects a second digital electrical signal output of better quality.
- step A33 a digital electrical signal output having a relatively high signal-to-noise ratio is selected from the first digital electrical signal and the second digital electrical signal.
- the signal-to-noise ratio of each digital electrical signal is actually measured, thereby selecting a digital electrical signal output with better quality.
- step 802 includes: step A4.
- step A4 when the sound pressure levels of the first digital electrical signal and the second digital electrical signal belong to the first lowest sound pressure level of the first sound pressure level range and the second highest sound pressure level of the second sound pressure level range During the interval, the first digital electrical signal and the second digital electrical signal are smoothly combined, and the smoothed combined digital electrical signal is output.
- a digital electrical signal is obtained by means of signal synthesis, which is compatible with the quality advantages of the first digital electrical signal and the second digital electrical signal. A better quality digital electrical signal can be obtained.
- the superposition process can obtain one digital electrical signal.
- the adaptive echo cancellation algorithm is used to process the superposed digital electrical signals to achieve noise reduction. Then, the digital electrical signal is normalized to obtain a digital electrical signal with better quality.
- FIG. 9 is a flowchart of a method for audio processing according to an exemplary embodiment. As shown in FIG. 9, the method may be implemented by a digital signal processor, including the following steps:
- step 901 a first digital electrical signal and a second digital electrical signal are received, wherein the first digital electrical signal is converted by a sound signal received by the first sound sensor, and the second digital electrical signal is obtained by the second sound
- the sound signal received by the sensor is converted, the first sound sensor operates in a first sound pressure level range, the second sound sensor operates in a second sound pressure level range, and the first highest sound pressure level in the first sound pressure level range is greater than The second highest sound pressure level of the second sound pressure level range.
- step 902 when the sound pressure levels of the first digital electrical signal and the second digital electrical signal belong to the first highest sound pressure level of the first sound pressure level range and the second highest sound pressure level of the second sound pressure level range When in between, the first digital electrical signal is output.
- step 903 when the sound pressure levels of the first digital electrical signal and the second digital electrical signal belong to the first lowest sound pressure level of the first sound pressure level range and the second lowest sound pressure level of the second sound pressure level range During the interval, the second digital electrical signal is output.
- step 904 when the sound pressure levels of the first digital electrical signal and the second digital electrical signal belong to the first lowest sound pressure level of the first sound pressure level range and the second highest sound pressure level of the second sound pressure level range During the interval, a digital electrical signal output is selected from the first digital electrical signal and the second digital electrical signal.
- FIG. 10 is a flowchart of a method for audio processing according to an exemplary embodiment. As shown in FIG. 10, the method may be implemented by a digital signal processor, including the following steps:
- step 1001 a first digital electrical signal and a second digital electrical signal are received, wherein the first digital electrical signal is converted by a sound signal received by the first sound sensor, and the second digital electrical signal is obtained by the second sound
- the sound signal received by the sensor is converted, the first sound sensor operates in a first sound pressure level range, the second sound sensor operates in a second sound pressure level range, and the first highest sound pressure level in the first sound pressure level range is greater than The second highest sound pressure level of the second sound pressure level range.
- step 1002 when the sound pressure levels of the first digital electrical signal and the second digital electrical signal belong to the first highest sound pressure level of the first sound pressure level range and the second highest sound pressure level of the second sound pressure level range When in between, the first digital electrical signal is output.
- step 1003 when the sound pressure levels of the first digital electrical signal and the second digital electrical signal belong to the first lowest sound pressure level of the first sound pressure level range and the second lowest sound pressure level of the second sound pressure level range During the interval, the second digital electrical signal is output.
- step 1004 when the sound pressure levels of the first digital electrical signal and the second digital electrical signal belong to the first lowest sound pressure level of the first sound pressure level range and the second highest sound pressure level of the second sound pressure level range During the interval, the first digital electrical signal and the second digital electrical signal are smoothly combined, and the smoothed combined digital electrical signal is output.
- the process is implemented by a digital signal processor (audio processing device).
- the internal structure and function of the digital signal processor are introduced below.
- FIG. 11 is a schematic diagram of an apparatus for audio processing according to an exemplary embodiment.
- the apparatus includes a receiving module 1101 and a processing module 1102.
- the receiving module 1101 is configured to receive the first digital electrical signal and the second digital electrical signal, wherein the first digital electrical signal is converted by the sound signal received by the first sound sensor, and the second digital electrical signal is obtained by the second The sound signal received by the sound sensor is converted, the first sound sensor operates in a first sound pressure level range, the second sound sensor operates in a second sound pressure level range, and the first highest sound pressure level in the first sound pressure level range Second most greater than the second sound pressure level range High sound pressure level.
- the processing module 1102 is configured to output a digital electrical signal according to the first digital electrical signal and the second digital electrical signal.
- the processing module 1102 includes a first processing sub-module 1201 or a second processing sub-module 1202.
- the first processing sub-module 1201 is configured to: when the sound pressure levels of the first digital electrical signal and the second digital electrical signal belong to the first highest sound pressure level of the first sound pressure level range and the second highest of the second sound pressure level range The first digital electrical signal is output between the sound pressure levels.
- the second processing sub-module 1202 is configured to: when the sound pressure levels of the first digital electrical signal and the second digital electrical signal belong to the first lowest sound pressure level of the first sound pressure level range and the second lowest of the second sound pressure level range A second digital electrical signal is output between the sound pressure levels.
- the second highest sound pressure level of the second sound pressure level range is greater than the first lowest sound pressure level of the first sound pressure level range
- the processing module 1102 includes: a third processing submodule 1301.
- the third processing sub-module 1301 is configured to: when the sound pressure levels of the first digital electrical signal and the second digital electrical signal belong to the first lowest sound pressure level of the first sound pressure level range and the second highest of the second sound pressure level range When between sound pressure levels, one digital electrical signal output is selected from the first digital electrical signal and the second digital electrical signal.
- the third processing sub-module 1301 randomly selects one digital electrical signal output from the first digital electrical signal and the second digital electrical signal; or, from the first digital electrical signal and the second digital electrical signal Selecting a second digital electrical signal output; or selecting a digital electrical signal output with a higher signal to noise ratio from the first digital electrical signal and the second digital electrical signal.
- the second highest sound pressure level of the second sound pressure level range is greater than the first lowest sound pressure level of the first sound pressure level range
- the processing module 1102 includes: a fourth processing sub-module 1401.
- the fourth processing sub-module 1401 is configured to: when the sound pressure levels of the first digital electrical signal and the second digital electrical signal belong to the first lowest sound pressure level of the first sound pressure level range and the second highest of the second sound pressure level range When the sound pressure level is between, the first digital electrical signal and the second digital electrical signal are smoothly combined, and the smoothed combined digital electrical signal is output.
- FIG. 15 is a block diagram of an apparatus 1500 for audio processing, according to an exemplary embodiment.
- device 1500 can be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a gaming console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.
- device 1500 can include one or more of the following components: processing component 1502, memory 1504, power component 1506, multimedia component 1508, audio component 1510, input/output (I/O) interface 1512, sensor component 1514, And a communication component 1516.
- Processing component 1502 typically controls the overall operation of device 1500, such as with display, telephone calls, data communications, The operations associated with camera operations and recording operations.
- Processing component 1502 can include one or more processors 1520 to execute instructions to perform all or part of the steps of the above described methods.
- processing component 1502 can include one or more modules to facilitate interaction between component 1502 and other components.
- processing component 1502 can include a multimedia module to facilitate interaction between multimedia component 1508 and processing component 1502.
- Memory 1504 is configured to store various types of data to support operation at device 1500. Examples of such data include instructions for any application or method operating on device 1500, contact data, phone book data, messages, pictures, videos, and the like.
- the memory 1504 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Disk or Optical Disk.
- SRAM static random access memory
- EEPROM electrically erasable programmable read only memory
- EPROM erasable Programmable Read Only Memory
- PROM Programmable Read Only Memory
- ROM Read Only Memory
- Magnetic Memory Flash Memory
- Disk Disk or Optical Disk.
- Power component 1506 provides power to various components of device 1500.
- Power component 1506 can include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to device 1500.
- Multimedia component 1508 includes a screen between the device 1500 and the user that provides an output interface.
- the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from the user.
- the touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor may sense not only the boundary of the touch or sliding action, but also the duration and pressure associated with the touch or slide operation.
- the multimedia component 1508 includes a front camera and/or a rear camera. When the device 1500 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
- the audio component 1510 is configured to output and/or input an audio signal.
- the audio component 1510 includes a microphone (MIC) that is configured to receive an external audio signal when the device 1500 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode.
- the received audio signal may be further stored in memory 1504 or transmitted via communication component 1516.
- audio component 1510 also includes a speaker for outputting an audio signal.
- the I/O interface 1512 provides an interface between the processing component 1502 and the peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to, a home button, a volume button, a start button, and a lock button.
- Sensor assembly 1514 includes one or more sensors for providing device 1500 with a status assessment of various aspects.
- sensor assembly 1514 can detect an open/closed state of device 1500, relative positioning of components, such as the display and keypad of device 1500, and sensor component 1514 can also detect the location of one component of device 1500 or device 1500. The presence or absence of contact by the user with the device 1500, the orientation or acceleration/deceleration of the device 1500 and the temperature change of the device 1500.
- Sensor assembly 1514 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact.
- Sensor assembly 1514 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
- the sensor component 1514 Acceleration sensors, gyroscope sensors, magnetic sensors, pressure sensors or temperature sensors can also be included.
- Communication component 1516 is configured to facilitate wired or wireless communication between device 1500 and other devices.
- the device 1500 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof.
- communication component 1516 receives broadcast signals or broadcast associated information from an external broadcast management system via a broadcast channel.
- the communication component 1516 also includes a near field communication (NFC) module to facilitate short range communication.
- NFC near field communication
- the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
- RFID radio frequency identification
- IrDA infrared data association
- UWB ultra-wideband
- Bluetooth Bluetooth
- device 1500 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor, or other electronic component implementation for performing the above methods.
- ASICs application specific integrated circuits
- DSPs digital signal processors
- DSPDs digital signal processing devices
- PLDs programmable logic devices
- FPGA field programmable A gate array
- controller microcontroller, microprocessor, or other electronic component implementation for performing the above methods.
- non-transitory computer readable storage medium comprising instructions, such as a memory 1504 comprising instructions executable by processor 1520 of apparatus 1500 to perform the above method.
- the non-transitory computer readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device.
- An audio processing device comprising:
- a memory for storing processor executable instructions
- processor is configured to:
- first digital electrical signal receives a first digital electrical signal and a second digital electrical signal
- first digital electrical signal is converted by a sound signal received by the first sound sensor
- second digital electrical signal is a sound received by the second sound sensor
- the signal is converted, the first sound sensor operates in the first sound pressure level range, the second sound sensor operates in the second sound pressure level range, and the first highest sound pressure level in the first sound pressure level range is greater than the second sound pressure level The second highest sound pressure level of the range;
- a digital electrical signal is output according to the first digital electrical signal and the second digital electrical signal.
- the processor can also be configured to:
- the outputting a digital electrical signal according to the first digital electrical signal and the second digital electrical signal includes:
- the output is a digital electrical signal
- the output is Two digital electrical signals.
- the processor can also be configured to:
- a second highest sound pressure level of the second sound pressure level range being greater than a first lowest sound pressure level of the first sound pressure level range
- the outputting a digital electrical signal according to the first digital electrical signal and the second digital electrical signal includes:
- a digital electrical signal output is selected from a digital electrical signal and a second digital electrical signal.
- the processor can also be configured to:
- Selecting a digital electrical signal output from the first digital electrical signal and the second digital electrical signal comprising:
- a digital electrical signal output with a relatively high signal-to-noise ratio is selected from the first digital electrical signal and the second digital electrical signal.
- the processor can also be configured to:
- a second highest sound pressure level of the second sound pressure level range being greater than a first lowest sound pressure level of the first sound pressure level range
- the outputting a digital electrical signal according to the first digital electrical signal and the second digital electrical signal includes:
- a digital electrical signal and a second digital electrical signal are smoothly combined to output a smooth synthesized digital electrical signal.
- a non-transitory computer readable storage medium when instructions in the storage medium are executed by a processor of a mobile terminal, enabling the mobile terminal to perform a method of audio processing, the method comprising:
- first digital electrical signal receives a first digital electrical signal and a second digital electrical signal
- first digital electrical signal is converted by a sound signal received by the first sound sensor
- second digital electrical signal is a sound received by the second sound sensor
- the signal is converted, the first sound sensor operates in the first sound pressure level range, the second sound sensor operates in the second sound pressure level range, and the first highest sound pressure level in the first sound pressure level range is greater than the second sound pressure level The second highest sound pressure level of the range;
- a digital electrical signal is output according to the first digital electrical signal and the second digital electrical signal.
- the instructions in the storage medium may further include:
- the outputting a digital electrical signal according to the first digital electrical signal and the second digital electrical signal includes:
- the output is a digital electrical signal
- the output is Two digital electrical signals.
- the instructions in the storage medium may further include:
- a second highest sound pressure level of the second sound pressure level range being greater than a first lowest sound pressure level of the first sound pressure level range
- the outputting a digital electrical signal according to the first digital electrical signal and the second digital electrical signal includes:
- a digital electrical signal output is selected from a digital electrical signal and a second digital electrical signal.
- the instructions in the storage medium may further include:
- Selecting a digital electrical signal output from the first digital electrical signal and the second digital electrical signal comprising:
- a digital electrical signal output with a relatively high signal-to-noise ratio is selected from the first digital electrical signal and the second digital electrical signal.
- the instructions in the storage medium may further include:
- a second highest sound pressure level of the second sound pressure level range being greater than a first lowest sound pressure level of the first sound pressure level range
- the outputting a digital electrical signal according to the first digital electrical signal and the second digital electrical signal includes:
- a digital electrical signal and a second digital electrical signal are smoothly combined to output a smooth synthesized digital electrical signal.
- FIG. 16 is a block diagram of an apparatus 1600 for audio processing, according to an exemplary embodiment.
- device 1600 can be provided as a computer.
- apparatus 1600 includes a processing component 1622 that further includes one or more processors, and memory resources represented by memory 1632 for storing instructions executable by processing component 1622, such as an application.
- An application stored in memory 1632 can include one or more modules each corresponding to a set of instructions.
- processing component 1622 is configured to execute instructions to perform the method audio processing described above.
- Apparatus 1600 can also include a power supply component 1626 configured to perform power management of apparatus 1600, a wired or wireless network interface 1650 configured to connect apparatus 1600 to the network, and an input/output (I/O) interface 1658.
- Device 1600 can operate based on an operating system stored in memory 1632, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.
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Abstract
一种麦克风、音频处理的方法及装置，用于提高声音的接收和处理质量。麦克风包括：第一声音传感器（101），用于接收第一声压级范围的声音信号，并将声音信号转换为模拟电信号；第二声音传感器（102），用于接收第二声压级范围的声音信号，并将声音信号转换为模拟电信号；其中，第一声压级范围的第一最高声压级大于第二声压级范围的第二最高声压级。
Description
本发明涉及通信及计算机处理领域，尤其涉及麦克风、音频处理的方法及装置。
随着电子技术的发展，移动终端、平板电脑、音响等设备层出不穷。这些设备都具有声音采集功能，也就是都包含麦克风。麦克风因其内部硬件结构的不同，采集声音的性能也不同。当处于嘈杂环境时，风噪声压级非常大，很容易超出麦克风所能正常接收的最大声压级，导致收到的声音信号出现破音等现象。
发明内容
为克服相关技术中存在的问题，本发明提供一种麦克风、音频处理的方法及装置。
根据本发明实施例的第一方面，提供一种麦克风，包括：
第一声音传感器，用于接收第一声压级范围的声音信号，并将声音信号转换为模拟电信号；
第二声音传感器，用于接收第二声压级范围的声音信号，并将声音信号转换为模拟电信号；其中，第一声压级范围的第一最高声压级大于第二声压级范围的第二最高声压级。
本发明的实施例提供的技术方案可以包括以下有益效果：本实施例通过两种不同规格的声音传感器接收声音信号，适用的声压级范围更广，实现在较大声压级范围获得高质量的声音信号，适用于更多的应用场景。
在一个实施例中，所述麦克风还包括：
第一放大器，与所述第一声音传感器连接，用于对模拟电信号进行放大；
第二放大器，与所述第二声音传感器连接，用于对模拟电信号进行放大。
本发明的实施例提供的技术方案可以包括以下有益效果：本实施例通过信号放大处理，可提高后续信号处理质量。
在一个实施例中，所述麦克风还包括：
第一模数转换器，与所述第一声音传感器或第一放大器连接，用于将模拟电信号转换为数字电信号，输出第一数字电信号；
第二模数转换器，与所述第二声音传感器或第二放大器连接，用于将模拟电信号转换为数字电信号，输出第二数字电信号。
本发明的实施例提供的技术方案可以包括以下有益效果：本实施例通过转换成数字信号，有助于提高后续信号处理质量。
在一个实施例中，所述麦克风还包括：
数字信号处理器，与第一模数转换器和第二模数转换器连接，用于根据第一数字电信号和第二数字电信号，输出一路数字电信号。
本发明的实施例提供的技术方案可以包括以下有益效果：本实施例可以从第一数字电信号和第二数字电信号中选择一路质量较好的数字电信号输出，提高输出的数字电信号的质量。
在一个实施例中，第二声压级范围的第二最高声压级等于或大于第一声压级范围的第一最低声压级。
本发明的实施例提供的技术方案可以包括以下有益效果：本实施例中两个规格的声音传感器的声压级范围无缝衔接，可覆盖较大的声压级范围，可在较大范围内接收高质量的声音信号。
根据本发明实施例的第二方面，提供一种音频处理的方法，包括：
接收第一数字电信号和第二数字电信号，其中，第一数字电信号是由第一声音传感器接收到的声音信号所转换得到，第二数字电信号是由第二声音传感器接收到的声音信号所转换得到，第一声音传感器工作在第一声压级范围，第二声音传感器工作在第二声压级范围，第一声压级范围的第一最高声压级大于第二声压级范围的第二最高声压级；
根据第一数字电信号和第二数字电信号，输出一路数字电信号。
本发明的实施例提供的技术方案可以包括以下有益效果：本实施例从两个不同规格的声音传感器处获得两路音频的数字电信号，可获得较大声压级范围的数字电信号，使得输出的数字电信号的质量较高。
在一个实施例中，所述根据第一数字电信号和第二数字电信号，输出一路数字电信号，包括：
当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最高声压级与第二声压级范围的第二最高声压级之间时，输出第一数字电信号；
当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最低声压级之间时，输出第二数字电信号。
本发明的实施例提供的技术方案可以包括以下有益效果：本实施例针对不同的声压级范围选择出质量较高的一路数字电信号输出，获得的音质较好。
在一个实施例中，第二声压级范围的第二最高声压级大于第一声压级范围的第一最低声压级；
所述根据第一数字电信号和第二数字电信号，输出一路数字电信号，包括：
当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最高声压级之间时，从第一数字电信号和第二数字电信号中选择一路数字电信号输出。
本发明的实施例提供的技术方案可以包括以下有益效果：本实施例针对不同的声压级范围选择出质量较高的一路数字电信号输出，获得的音质较好。
在一个实施例中，所述从第一数字电信号和第二数字电信号中选择一路数字电信号输出，包括：
从第一数字电信号和第二数字电信号中随机选择一路数字电信号输出；或者
从第一数字电信号和第二数字电信号中选择第二数字电信号输出；或者
从第一数字电信号和第二数字电信号中选择信噪比较高的一路数字电信号输出。
本发明的实施例提供的技术方案可以包括以下有益效果：
在一个实施例中，第二声压级范围的第二最高声压级大于第一声压级范围的第一最低声压级；
所述根据第一数字电信号和第二数字电信号，输出一路数字电信号，包括：
当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最高声压级之间时，对第一数字电信号和第二数字电信号进行平滑合成，输出平滑合成后的一路数字电信号。
本发明的实施例提供的技术方案可以包括以下有益效果：本实施例针对不同的声压级范围选择出质量较高的一路数字电信号输出，获得的音质较好。
根据本发明实施例的第三方面，提供一种音频处理的装置，包括：
接收模块，用于接收第一数字电信号和第二数字电信号，其中，第一数字电信号是由第一声音传感器接收到的声音信号所转换得到，第二数字电信号是由第二声音传感器接收到的声音信号所转换得到，第一声音传感器工作在第一声压级范围，第二声音传感器工作在第二声压级范围，第一声压级范围的第一最高声压级大于第二声压级范围的第二最高声压级；
处理模块，用于根据第一数字电信号和第二数字电信号，输出一路数字电信号。
在一个实施例中，所述处理模块包括：
第一处理子模块，用于当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最高声压级与第二声压级范围的第二最高声压级之间时，输出第一数字电信号；
第二处理子模块，用于当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最低声压级之间时，输出第二数字电信号。
在一个实施例中，第二声压级范围的第二最高声压级大于第一声压级范围的第一最低声压级；
所述处理模块包括：
第三处理子模块，用于当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最高声压级之间时，从第一数字电信号和第二数字电信号中选择一路数字电信号输出。
在一个实施例中，所述第三处理子模块从第一数字电信号和第二数字电信号中随机选择一路数字电信号输出；或者，从第一数字电信号和第二数字电信号中选择第二数字电信号输出；或者，从第一数字电信号和第二数字电信号中选择信噪比较高的一路数字电信号
输出。
在一个实施例中，第二声压级范围的第二最高声压级大于第一声压级范围的第一最低声压级；
所述处理模块包括：
第四处理子模块，用于当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最高声压级之间时，对第一数字电信号和第二数字电信号进行平滑合成，输出平滑合成后的一路数字电信号。
根据本发明实施例的第四方面，提供一种音频处理的装置，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为：
接收第一数字电信号和第二数字电信号，其中，第一数字电信号是由第一声音传感器接收到的声音信号所转换得到，第二数字电信号是由第二声音传感器接收到的声音信号所转换得到，第一声音传感器工作在第一声压级范围，第二声音传感器工作在第二声压级范围，第一声压级范围的第一最高声压级大于第二声压级范围的第二最高声压级；
根据第一数字电信号和第二数字电信号，输出一路数字电信号。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本发明。
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本发明的实施例，并与说明书一起用于解释本发明的原理。
图1是根据一示例性实施例示出的一种麦克风的框图。
图2是根据一示例性实施例示出的一种麦克风的框图。
图3是根据一示例性实施例示出的一种麦克风的框图。
图4是根据一示例性实施例示出的一种麦克风的框图。
图5是根据一示例性实施例示出的一种麦克风的框图。
图6是根据一示例性实施例示出的一种声压级范围的示意图。
图7是根据一示例性实施例示出的一种声压级范围的示意图。
图8是根据一示例性实施例示出的一种音频处理的方法的流程图。
图9是根据一示例性实施例示出的一种音频处理的方法的流程图。
图10是根据一示例性实施例示出的一种音频处理的方法的流程图。
图11是根据一示例性实施例示出的一种音频处理的装置的框图。
图12是根据一示例性实施例示出的一种处理模块的框图。
图13是根据一示例性实施例示出的一种处理模块的框图。
图14是根据一示例性实施例示出的一种处理模块的框图。
图15是根据一示例性实施例示出的一种装置的框图。
图16是根据一示例性实施例示出的一种装置的框图。
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本发明的一些方面相一致的装置和方法的例子。
相关技术中，移动终端、平板电脑等设备均通过麦克风采集音频，实现录音和语音输入等功能。麦克风通常只包括一个声音传感器。该一个声音传感器适用的声压级范围有限，很难适应多种应用场景的需求。例如，适用于一般场景的声音传感器，在安静的室内环境下接收人声的质量较好，但是在户外或歌厅等嘈杂环境下接收到的用户说话声音较差，会出现破音等情况。适用于嘈杂环境下的高声压级低灵敏度的声音传感器，在安静的室内环境下接收的声音信号，由于灵敏度较低，所以声音信号的质量较差。
为解决上述问题，本实施例在一个麦克风中设置两种规格的声音传感器，两种规格的声音传感器结合起来可适用于较大的声压级范围，适用的应用场景也更广。
图1是根据一示例性实施例示出的一种麦克风(MIC)的装置示意图。参照图1，该麦克风包括：第一声音传感器101和第二声音传感器102。
第一声音传感器101，用于接收第一声压级范围的声音信号，并将声音信号转换为模拟电信号。
第二声音传感器102，用于接收第二声压级范围的声音信号，并将声音信号转换为模拟电信号；其中，第一声压级范围的第一最高声压级大于第二声压级范围的第二最高声压级。
本实施例中的麦克风可以是模拟麦克风，如模拟MEMS(Micro EleCTRo Meganetic System，微机电系统)麦克风。第一声音传感器101和第二声音传感器102均可以采用MEMS传感器。MEMS传感器包括MEMS晶片和ASIC(Application Specific Integrated Circuit，专用集成电路)晶片。MEMS晶片包括一个刚性穿孔背电极(fixed backplate)和一片用作电容器的弹性硅膜(flexible membrane)。该弹性硅膜将声压转换为电容变化。ASIC晶片用于检测电容变化，并将其转换为电信号，传送给相关处理器件，如基带处理器或放大器。
以麦克风位于移动终端中为例，麦克风向移动终端中的其它音频处理器件发送音频的模拟电信号。移动终端中的其它音频处理器件对模拟电信号进行处理。移动终端中的其它音频处理器件如放大器、模数转换器、数字信号处理器等。
第一声音传感器101可采用高声压级低灵敏度的传感器，适用于嘈杂环境，可正常接收高声压级的声音信号，接收的声音信号不失真，即工作在高声压级。第二声音传感器102
可采用一般的传感器，适用于正常环境，可正常接收正常声压级的声音信号，接收的声音信号不失真，即工作在正常声压级。第一声压级范围的第一最高声压级大于第二声压级范围的第二最高声压级。一般来说，如果第一声压级范围的第一最高声压级大于第二声压级范围的第二最高声压级，则第一声压级范围的第一最低声压级大于第二声压级范围的第二最低声压级。
本实施例将不同规格的第一声音传感器101和第二声音传感器102结合使用，可高质量的接收较大声压级范围的声音信号，提高接收到的声音信号的质量。可在更多的场景中接收高质量的声音信号。
在一个实施例中，如图2所示，所述麦克风还包括：第一放大器201和第二放大器202。
第一放大器201，与所述第一声音传感器101连接，用于对模拟电信号进行放大。
第二放大器202，与所述第二声音传感器102连接，用于对模拟电信号进行放大。
第一放大器201与所述第一声音传感器101可集成在一个芯片中，第二放大器202与所述第二声音传感器102可集成在一个芯片中。
本实施例通过放大器对模拟电信号进行放大处理，有助于后续获取较高质量的音频信息。
在一个实施例中，如图3或图4所示，所述麦克风还包括：第一模数转换器301和第二模数转换器302。
第一模数转换器301，与所述第一声音传感器101或第一放大器201连接，用于将模拟电信号转换为数字电信号，输出第一数字电信号；
第二模数转换器302，与所述第二声音传感器102或第二放大器202连接，用于将模拟电信号转换为数字电信号，输出第二数字电信号。
第一模数转换器301与所述第一声音传感器101可集成在一个芯片中，或者第一模数转换器301与所述第一声音传感器101和第一放大器201集成在一个芯片中。第二模数转换器302与所述第二声音传感器102可集成在一个芯片中，或者第二模数转换器302与所述第二声音传感器102和第二放大器202集成在一个芯片中。
包括模数转换器的麦克风可以是数字麦克风，如数字MEMS麦克风。
本实施例既可以采用模拟麦克风，又可以采用数字麦克风。以麦克风位于移动终端中为例，麦克风向移动终端中的其它音频处理器件发送音频的数字电信号。移动终端中的其它音频处理器件对数字电信号进行处理。移动终端中的其它音频处理器件如数字信号处理器等。可简化移动终端的其它音频处理器件的结构。
在一个实施例中，如图5所示，所述麦克风还包括：数字信号处理器501。
数字信号处理器501，与第一模数转换器101和第二模数转换器102连接，用于根据第一数字电信号和第二数字电信号，输出一路数字电信号。
图5是以图4为基础的实例。还可以与图3的例子结合，本实施例未示出。
麦克风通过数字信号处理器501输出一路数字电信号给移动终端，简化了移动终端中
其它音频处理器件的结构，其它音频处理器件可不需要根据第一数字电信号和第二数字电信号做处理，而是直接对该一路数字电信号做处理。
本实施例通过数字信号处理器501的处理，输出的一路数字电信号具有较高的信号质量，适用于更多的应用场景。
在一个实施例中，第二声压级范围的第二最高声压级等于或大于第一声压级范围的第一最低声压级。
如图6和图7所示，第二声压级范围与第一声压级范围无缝衔接，沟通构建更宽泛的声压级范围。本实施例可在较大的声压级范围内高质量的接收声音信号，使声音信号不失真。实现在多种应用场景正常接收声音信号。
以上介绍了麦克风的内部结构，可通过多种规格的传感器接收多路声音信号。但是移动终端等设备最终只使用一路声音信号，所以需要根据多路声音信号得到一路声音信号。下面介绍得到一路声音信号的方法。
图8是根据一示例性实施例示出的一种音频处理的方法的流程图，如图8所示，该方法可以由数字信号处理器实现，包括以下步骤：
在步骤801中，接收第一数字电信号和第二数字电信号，其中，第一数字电信号是由第一声音传感器接收到的声音信号所转换得到，第二数字电信号是由第二声音传感器接收到的声音信号所转换得到，第一声音传感器工作在第一声压级范围，第二声音传感器工作在第二声压级范围，第一声压级范围的第一最高声压级大于第二声压级范围的第二最高声压级。
在步骤802中，根据第一数字电信号和第二数字电信号，输出一路数字电信号。
本实施例中，数字信号处理器可位于麦克风中，也可以位于移动终端等设备的其它音频处理器件中。数字信号处理器用于根据第一数字电信号和第二数字电信号这两路信号得到一路信号。
在一个实施例中，步骤802包括：步骤A1或步骤A2。
在步骤A1中，当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最高声压级与第二声压级范围的第二最高声压级之间时，输出第一数字电信号。
在步骤A2中，当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最低声压级之间时，输出第二数字电信号。
以图7为例，第一声压级范围的第一最低声压级等于第二声压级范围的第二最高声压级，第一声压级范围与第二声压级范围没有交叉范围。步骤A1和步骤A2可覆盖所有范围，也就是从第一数字电信号和第二数字电信号中选择一路数字电信号即可。
以图6为例，第一声压级范围的第一最低声压级大于第二声压级范围的第二最高声压级，第一声压级范围与第二声压级范围有交叉范围。除交叉范围以外的单一范围，从第一数字电信号和第二数字电信号中选择一路数字电信号即可。对于交叉范围，请参见下面的实施例。
在一个实施例中，第二声压级范围的第二最高声压级大于第一声压级范围的第一最低声压级；步骤802包括：步骤A3。
在步骤A3中，当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最高声压级之间时，从第一数字电信号和第二数字电信号中选择一路数字电信号输出。
本实施例采用择一的方式确定输出的一路数字电信号，实现方式简单。因为在交叉范围内，第一声音传感器和第二声音传感器均可以正常接收声音信号，所以两路声音信号都不会失真，可以保证声音信号的质量。
选择方式可以有多种，参见下面的实施例。
在一个实施例中，步骤A3包括：步骤A31、步骤A32或步骤A33。
在步骤A31中，从第一数字电信号和第二数字电信号中随机选择一路数字电信号输出。
本实施例采用随机选择的方式，实现过程比较简单，任一路数字电信号都可以满足质量要求，保证音频不失真。
在步骤A32中，从第一数字电信号和第二数字电信号中选择第二数字电信号输出。
该交叉范围属于第一声压级范围的下半区，以及属于第二声压级范围的上半区。本申请发明人发现，传感器对高声压级的声音信号接收的效果更好。也就是说，多数情况下，第二数字电信号的质量优于第一数字电信号。因此，本实施例选择质量更好的第二数字电信号输出。
在步骤A33中，从第一数字电信号和第二数字电信号中选择信噪比较高的一路数字电信号输出。
本实施例实际测量每路数字电信号的信噪比，从而选择质量较好的一路数字电信号输出。
在一个实施例中，第二声压级范围的第二最高声压级大于第一声压级范围的第一最低声压级；步骤802包括：步骤A4。
在步骤A4中，当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最高声压级之间时，对第一数字电信号和第二数字电信号进行平滑合成，输出平滑合成后的一路数字电信号。
本实施例采用信号合成的方式得到一路数字电信号，可兼容第一数字电信号和第二数字电信号的质量优势。可得到质量更好的一路数字电信号。
平滑合成的方式有多种，例如，将第一数字电信号和第二数字电信号进行线性叠加。叠加处理可得到一路数字电信号。采用自适应回波抵消算法对叠加后的数字电信号进行处理，可实现降噪。然后对该一路数字电信号进行归一化处理，得到质量较好的一路数字电信号。
图9是根据一示例性实施例示出的一种音频处理的方法的流程图，如图9所示，该方法可以由数字信号处理器实现，包括以下步骤：
在步骤901中，接收第一数字电信号和第二数字电信号，其中，第一数字电信号是由第一声音传感器接收到的声音信号所转换得到，第二数字电信号是由第二声音传感器接收到的声音信号所转换得到，第一声音传感器工作在第一声压级范围，第二声音传感器工作在第二声压级范围，第一声压级范围的第一最高声压级大于第二声压级范围的第二最高声压级。
在步骤902中，当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最高声压级与第二声压级范围的第二最高声压级之间时，输出第一数字电信号。
在步骤903中，当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最低声压级之间时，输出第二数字电信号。
在步骤904中，当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最高声压级之间时，从第一数字电信号和第二数字电信号中选择一路数字电信号输出。
图10是根据一示例性实施例示出的一种音频处理的方法的流程图，如图10所示，该方法可以由数字信号处理器实现，包括以下步骤：
在步骤1001中，接收第一数字电信号和第二数字电信号，其中，第一数字电信号是由第一声音传感器接收到的声音信号所转换得到，第二数字电信号是由第二声音传感器接收到的声音信号所转换得到，第一声音传感器工作在第一声压级范围，第二声音传感器工作在第二声压级范围，第一声压级范围的第一最高声压级大于第二声压级范围的第二最高声压级。
在步骤1002中，当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最高声压级与第二声压级范围的第二最高声压级之间时，输出第一数字电信号。
在步骤1003中，当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最低声压级之间时，输出第二数字电信号。
在步骤1004中，当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最高声压级之间时，对第一数字电信号和第二数字电信号进行平滑合成，输出平滑合成后的一路数字电信号。
上述实施例可以根据实际需要进行各种组合。
通过以上介绍了解了音频处理的实现过程，该过程由数字信号处理器(音频处理的装置)实现，下面针对数字信号处理器的内部结构和功能进行介绍。
图11是根据一示例性实施例示出的一种音频处理的装置示意图。参照图11，该装置包括：接收模块1101和处理模块1102。
接收模块1101，用于接收第一数字电信号和第二数字电信号，其中，第一数字电信号是由第一声音传感器接收到的声音信号所转换得到，第二数字电信号是由第二声音传感器接收到的声音信号所转换得到，第一声音传感器工作在第一声压级范围，第二声音传感器工作在第二声压级范围，第一声压级范围的第一最高声压级大于第二声压级范围的第二最
高声压级。
处理模块1102，用于根据第一数字电信号和第二数字电信号，输出一路数字电信号。
在一个实施例中，如图12所示，所述处理模块1102包括：第一处理子模块1201或第二处理子模块1202。
第一处理子模块1201，用于当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最高声压级与第二声压级范围的第二最高声压级之间时，输出第一数字电信号。
第二处理子模块1202，用于当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最低声压级之间时，输出第二数字电信号。
在一个实施例中，第二声压级范围的第二最高声压级大于第一声压级范围的第一最低声压级；
如图13所示，所述处理模块1102包括：第三处理子模块1301。
第三处理子模块1301，用于当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最高声压级之间时，从第一数字电信号和第二数字电信号中选择一路数字电信号输出。
在一个实施例中，所述第三处理子模块1301从第一数字电信号和第二数字电信号中随机选择一路数字电信号输出；或者，从第一数字电信号和第二数字电信号中选择第二数字电信号输出；或者，从第一数字电信号和第二数字电信号中选择信噪比较高的一路数字电信号输出。
在一个实施例中，第二声压级范围的第二最高声压级大于第一声压级范围的第一最低声压级；
如图14所示，所述处理模块1102包括：第四处理子模块1401。
第四处理子模块1401，用于当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最高声压级之间时，对第一数字电信号和第二数字电信号进行平滑合成，输出平滑合成后的一路数字电信号。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
图15是根据一示例性实施例示出的一种用于音频处理的装置1500的框图。例如，装置1500可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图15，装置1500可以包括以下一个或多个组件：处理组件1502，存储器1504，电源组件1506，多媒体组件1508，音频组件1510，输入/输出(I/O)的接口1512，传感器组件1514，以及通信组件1516。
处理组件1502通常控制装置1500的整体操作，诸如与显示，电话呼叫，数据通信，
相机操作和记录操作相关联的操作。处理组件1502可以包括一个或多个处理器1520来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件1502可以包括一个或多个模块，便于处理组件1502和其他组件之间的交互。例如，处理组件1502可以包括多媒体模块，以方便多媒体组件1508和处理组件1502之间的交互。
存储器1504被配置为存储各种类型的数据以支持在装置1500的操作。这些数据的示例包括用于在装置1500上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器1504可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电源组件1506为装置1500的各种组件提供电源。电源组件1506可以包括电源管理系统，一个或多个电源，及其他与为装置1500生成、管理和分配电源相关联的组件。
多媒体组件1508包括在所述装置1500和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件1508包括一个前置摄像头和/或后置摄像头。当装置1500处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件1510被配置为输出和/或输入音频信号。例如，音频组件1510包括一个麦克风(MIC)，当装置1500处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器1504或经由通信组件1516发送。在一些实施例中，音频组件1510还包括一个扬声器，用于输出音频信号。
I/O接口1512为处理组件1502和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件1514包括一个或多个传感器，用于为装置1500提供各个方面的状态评估。例如，传感器组件1514可以检测到装置1500的打开/关闭状态，组件的相对定位，例如所述组件为装置1500的显示器和小键盘，传感器组件1514还可以检测装置1500或装置1500的一个组件的位置改变，用户与装置1500接触的存在或不存在，装置1500方位或加速/减速和装置1500的温度变化。传感器组件1514可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件1514还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件1514
还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件1516被配置为便于装置1500和其他设备之间有线或无线方式的通信。装置1500可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件1516经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件1516还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置1500可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器1504，上述指令可由装置1500的处理器1520执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
一种音频处理的装置，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为：
接收第一数字电信号和第二数字电信号，其中，第一数字电信号是由第一声音传感器接收到的声音信号所转换得到，第二数字电信号是由第二声音传感器接收到的声音信号所转换得到，第一声音传感器工作在第一声压级范围，第二声音传感器工作在第二声压级范围，第一声压级范围的第一最高声压级大于第二声压级范围的第二最高声压级；
根据第一数字电信号和第二数字电信号，输出一路数字电信号。
所述处理器还可以被配置为：
所述根据第一数字电信号和第二数字电信号，输出一路数字电信号，包括：
当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最高声压级与第二声压级范围的第二最高声压级之间时，输出第一数字电信号；
当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最低声压级之间时，输出第二数字电信号。
所述处理器还可以被配置为：
第二声压级范围的第二最高声压级大于第一声压级范围的第一最低声压级；
所述根据第一数字电信号和第二数字电信号，输出一路数字电信号，包括：
当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最高声压级之间时，从第一数字电信号和第二数字电信号中选择一路数字电信号输出。
所述处理器还可以被配置为：
所述从第一数字电信号和第二数字电信号中选择一路数字电信号输出，包括：
从第一数字电信号和第二数字电信号中随机选择一路数字电信号输出；或者
从第一数字电信号和第二数字电信号中选择第二数字电信号输出；或者
从第一数字电信号和第二数字电信号中选择信噪比较高的一路数字电信号输出。
所述处理器还可以被配置为：
第二声压级范围的第二最高声压级大于第一声压级范围的第一最低声压级；
所述根据第一数字电信号和第二数字电信号，输出一路数字电信号，包括：
当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最高声压级之间时，对第一数字电信号和第二数字电信号进行平滑合成，输出平滑合成后的一路数字电信号。
一种非临时性计算机可读存储介质，当所述存储介质中的指令由移动终端的处理器执行时，使得移动终端能够执行一种音频处理的方法，所述方法包括：
接收第一数字电信号和第二数字电信号，其中，第一数字电信号是由第一声音传感器接收到的声音信号所转换得到，第二数字电信号是由第二声音传感器接收到的声音信号所转换得到，第一声音传感器工作在第一声压级范围，第二声音传感器工作在第二声压级范围，第一声压级范围的第一最高声压级大于第二声压级范围的第二最高声压级；
根据第一数字电信号和第二数字电信号，输出一路数字电信号。
所述存储介质中的指令还可以包括：
所述根据第一数字电信号和第二数字电信号，输出一路数字电信号，包括：
当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最高声压级与第二声压级范围的第二最高声压级之间时，输出第一数字电信号；
当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最低声压级之间时，输出第二数字电信号。
所述存储介质中的指令还可以包括：
第二声压级范围的第二最高声压级大于第一声压级范围的第一最低声压级；
所述根据第一数字电信号和第二数字电信号，输出一路数字电信号，包括：
当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最高声压级之间时，从第一数字电信号和第二数字电信号中选择一路数字电信号输出。
所述存储介质中的指令还可以包括：
所述从第一数字电信号和第二数字电信号中选择一路数字电信号输出，包括：
从第一数字电信号和第二数字电信号中随机选择一路数字电信号输出；或者
从第一数字电信号和第二数字电信号中选择第二数字电信号输出；或者
从第一数字电信号和第二数字电信号中选择信噪比较高的一路数字电信号输出。
所述存储介质中的指令还可以包括：
第二声压级范围的第二最高声压级大于第一声压级范围的第一最低声压级；
所述根据第一数字电信号和第二数字电信号，输出一路数字电信号，包括：
当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最高声压级之间时，对第一数字电信号和第二数字电信号进行平滑合成，输出平滑合成后的一路数字电信号。
图16是根据一示例性实施例示出的一种用于音频处理的装置1600的框图。例如，装置1600可以被提供为一计算机。参照图16，装置1600包括处理组件1622，其进一步包括一个或多个处理器，以及由存储器1632所代表的存储器资源，用于存储可由处理组件1622的执行的指令，例如应用程序。存储器1632中存储的应用程序可以包括一个或一个以上的每一个对应于一组指令的模块。此外，处理组件1622被配置为执行指令，以执行上述方法音频处理。
装置1600还可以包括一个电源组件1626被配置为执行装置1600的电源管理，一个有线或无线网络接口1650被配置为将装置1600连接到网络，和一个输入输出(I/O)接口1658。装置1600可以操作基于存储在存储器1632的操作系统，例如Windows ServerTM，Mac OS XTM，UnixTM,LinuxTM，FreeBSDTM或类似。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本发明的其它实施方案。本申请旨在涵盖本发明的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本发明的一般性原理并包括本发明未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本发明的真正范围和精神由下面的权利要求指出。
应当理解的是，本发明并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本发明的范围仅由所附的权利要求来限制。
Claims (16)
- 一种麦克风，其特征在于，包括：第一声音传感器，用于接收第一声压级范围的声音信号，并将声音信号转换为模拟电信号；第二声音传感器，用于接收第二声压级范围的声音信号，并将声音信号转换为模拟电信号；其中，第一声压级范围的第一最高声压级大于第二声压级范围的第二最高声压级。
- 根据权利要求1所述的麦克风，其特征在于，所述麦克风还包括：第一放大器，与所述第一声音传感器连接，用于对模拟电信号进行放大；第二放大器，与所述第二声音传感器连接，用于对模拟电信号进行放大。
- 根据权利要求1或2所述的麦克风，其特征在于，所述麦克风还包括：第一模数转换器，与所述第一声音传感器或第一放大器连接，用于将模拟电信号转换为数字电信号，输出第一数字电信号；第二模数转换器，与所述第二声音传感器或第二放大器连接，用于将模拟电信号转换为数字电信号，输出第二数字电信号。
- 根据权利要求3所述的麦克风，其特征在于，所述麦克风还包括：数字信号处理器，与第一模数转换器和第二模数转换器连接，用于根据第一数字电信号和第二数字电信号，输出一路数字电信号。
- 根据权利要求1所述的麦克风，其特征在于，第二声压级范围的第二最高声压级等于或大于第一声压级范围的第一最低声压级。
- 一种音频处理的方法，其特征在于，包括：接收第一数字电信号和第二数字电信号，其中，第一数字电信号是由第一声音传感器接收到的声音信号所转换得到，第二数字电信号是由第二声音传感器接收到的声音信号所转换得到，第一声音传感器工作在第一声压级范围，第二声音传感器工作在第二声压级范围，第一声压级范围的第一最高声压级大于第二声压级范围的第二最高声压级；根据第一数字电信号和第二数字电信号，输出一路数字电信号。
- 根据权利要求6所述的音频处理的方法，其特征在于，所述根据第一数字电信号和第二数字电信号，输出一路数字电信号，包括：当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最高声压级与第二声压级范围的第二最高声压级之间时，输出第一数字电信号；当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最低声压级之间时，输出第二数字电信号。
- 根据权利要求6所述的音频处理的方法，其特征在于，第二声压级范围的第二最高声压级大于第一声压级范围的第一最低声压级；所述根据第一数字电信号和第二数字电信号，输出一路数字电信号，包括：当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最高声压级之间时，从第一数字电信号和第二数字电信号中选择一路数字电信号输出。
- 根据权利要求8所述的音频处理的方法，其特征在于，所述从第一数字电信号和第二数字电信号中选择一路数字电信号输出，包括：从第一数字电信号和第二数字电信号中随机选择一路数字电信号输出；或者从第一数字电信号和第二数字电信号中选择第二数字电信号输出；或者从第一数字电信号和第二数字电信号中选择信噪比较高的一路数字电信号输出。
- 根据权利要求6所述的音频处理的方法，其特征在于，第二声压级范围的第二最高声压级大于第一声压级范围的第一最低声压级；所述根据第一数字电信号和第二数字电信号，输出一路数字电信号，包括：当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最高声压级之间时，对第一数字电信号和第二数字电信号进行平滑合成，输出平滑合成后的一路数字电信号。
- 一种音频处理的装置，其特征在于，包括：接收模块，用于接收第一数字电信号和第二数字电信号，其中，第一数字电信号是由第一声音传感器接收到的声音信号所转换得到，第二数字电信号是由第二声音传感器接收到的声音信号所转换得到，第一声音传感器工作在第一声压级范围，第二声音传感器工作在第二声压级范围，第一声压级范围的第一最高声压级大于第二声压级范围的第二最高声压级；处理模块，用于根据第一数字电信号和第二数字电信号，输出一路数字电信号。
- 根据权利要求11所述的音频处理的装置，其特征在于，所述处理模块包括：第一处理子模块，用于当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最高声压级与第二声压级范围的第二最高声压级之间时，输出第一数字电信号；第二处理子模块，用于当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最低声压级之间时，输出第二数字电信号。
- 根据权利要求11所述的音频处理的装置，其特征在于，第二声压级范围的第二最高声压级大于第一声压级范围的第一最低声压级；所述处理模块包括：第三处理子模块，用于当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最高声压级之间时，从第一数字电信号和第二数字电信号中选择一路数字电信号输出。
- 根据权利要求13所述的音频处理的装置，其特征在于，所述第三处理子模块从第一数字电信号和第二数字电信号中随机选择一路数字电信号输出；或者，从第一数字电信号和第二数字电信号中选择第二数字电信号输出；或者，从第一数字电信号和第二数字电信号中选择信噪比较高的一路数字电信号输出。
- 根据权利要求11所述的音频处理的装置，其特征在于，第二声压级范围的第二最高声压级大于第一声压级范围的第一最低声压级；所述处理模块包括：第四处理子模块，用于当第一数字电信号和第二数字电信号的声压级属于第一声压级范围的第一最低声压级与第二声压级范围的第二最高声压级之间时，对第一数字电信号和第二数字电信号进行平滑合成，输出平滑合成后的一路数字电信号。
- 一种音频处理的装置，其特征在于，包括：处理器；用于存储处理器可执行指令的存储器；其中，所述处理器被配置为：接收第一数字电信号和第二数字电信号，其中，第一数字电信号是由第一声音传感器接收到的声音信号所转换得到，第二数字电信号是由第二声音传感器接收到的声音信号所转换得到，第一声音传感器工作在第一声压级范围，第二声音传感器工作在第二声压级范围，第一声压级范围的第一最高声压级大于第二声压级范围的第二最高声压级；根据第一数字电信号和第二数字电信号，输出一路数字电信号。
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