CN211352437U - Audio output device and electronic equipment - Google Patents
Audio output device and electronic equipment Download PDFInfo
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- CN211352437U CN211352437U CN201922477690.0U CN201922477690U CN211352437U CN 211352437 U CN211352437 U CN 211352437U CN 201922477690 U CN201922477690 U CN 201922477690U CN 211352437 U CN211352437 U CN 211352437U
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Abstract
The application discloses audio output device and electronic equipment, audio output device includes: the frequency dividing component is used for performing frequency dividing processing on a target audio signal to be output to obtain a first audio signal and a second audio signal; the first audio signal is in a first frequency range, the second audio signal is in a second frequency range, and the first frequency range and the second frequency range are different; a first output section for outputting the first audio signal output by the frequency dividing section; a second output section for outputting the second audio signal output by the frequency dividing section; the output parameter of the first output component corresponds to the first frequency range, and the output parameter of the second output component corresponds to the second frequency range. The audio output device and the electronic equipment can pursue a more optimized output effect aiming at audio components in different frequency range, so that the output effect of audio signals can be improved, and the listening experience of a user is improved.
Description
Technical Field
The present application relates to the field of audio playing technologies, and in particular, to an audio output device and an electronic apparatus.
Background
The terminal such as a mobile phone and the like is single in realization when the audio signal is played, and the condition that the volume and the tone quality cannot be obtained simultaneously exists, so that the listening experience of the audio for a user is poor when the audio is output.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present application provides an audio output device and an electronic apparatus, including:
an audio output device comprising:
the frequency dividing component is used for performing frequency dividing processing on a target audio signal to be output to obtain a first audio signal and a second audio signal;
wherein the first audio signal is in a first frequency range, the second audio signal is in a second frequency range, and the first frequency range and the second frequency range are different;
a first output section for outputting the first audio signal output by the frequency dividing section;
a second output section for outputting the second audio signal output by the frequency dividing section;
wherein the output parameter of the first output component corresponds to the first frequency range and the output parameter of the second output component corresponds to the second frequency range.
In the above apparatus, preferably, the frequency dividing means includes:
the first processing component is used for performing first filtering processing on the target audio signal to obtain a first audio signal in the first frequency range;
and the second processing component is used for performing second filtering processing on the target audio signal to obtain a second audio flat signal in the second frequency band range.
In the above apparatus, preferably, the first processing unit includes:
the sound channel mixer is used for carrying out sound channel processing on the target audio signal to obtain a single-sound-channel target audio signal;
and the first filter is used for performing first filtering on the single-channel target audio signal to obtain a first audio signal in the first frequency range.
In the above apparatus, preferably, the first processing unit further includes:
and the audio optimizer is used for performing sound effect optimization processing on the first audio signal by using a sound effect algorithm and outputting the optimized first audio signal to the first output component.
In the above apparatus, preferably, the first processing unit is connected to the first output unit by a connection manner of a monaural parallel bridge type load PBTL;
the second processing unit is connected to the second output unit by means of a stereo bridge load BTL.
An electronic device, comprising:
the processor is used for generating a target audio signal to be output and carrying out frequency division processing on the target audio signal to obtain a first audio signal and a second audio signal;
audio output means for outputting the first audio signal through a first output section and outputting the second audio signal through a second output section;
wherein the first audio signal is in a first frequency range, the second audio signal is in a second frequency range, and the first frequency range and the second frequency range are different; the output parameter of the first output component corresponds to the first frequency range, and the output parameter of the second output component corresponds to the second frequency range.
Preferably, in the electronic device, the processor is specifically configured to: performing first filtering processing on the target audio signal to obtain a first audio signal in the first frequency range; and carrying out second filtering processing on the target audio signal to obtain a second audio flat signal in the second frequency range.
The electronic device is preferably, the processor is further configured to: and carrying out sound channel processing on the target audio signal to obtain a single-channel target audio signal, and carrying out first filtering processing on the single-channel target audio signal to obtain a first audio signal in the first frequency range.
The electronic device is preferably, the processor is further configured to: and performing sound effect optimization processing on the first audio signal by using a sound effect algorithm so that the audio output device outputs the first audio signal through a first output component.
The electronic device is preferably, the processor is further configured to: and performing sound effect optimization processing on the second audio signal by using the sound effect algorithm so that the audio output device outputs the second audio signal through a second output component.
According to the technical scheme, the audio output device and the electronic equipment disclosed by the application output the audio components in different frequency range in the audio signal through different output components, so that a more optimized output effect can be pursued for the audio components in different frequency range, the output effect of the audio signal can be improved, and the listening experience of a user can be improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an audio output device according to an embodiment of the present disclosure;
FIG. 2 is an exemplary illustration of frequency band ranges in an embodiment of the present application;
FIGS. 3-7 are schematic views illustrating a partial structure of an audio output device according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of an electronic device according to a second embodiment of the present application;
fig. 9 is an exemplary diagram of the present application applied to a mobile phone.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, a schematic structural diagram of an audio output device according to an embodiment of the present disclosure is shown, where the audio output device may be a device capable of outputting an audio signal on an electronic device, such as a speaker. The audio output device in this embodiment is used to perform frequency division output on a target audio signal to improve the output effect of the audio signal, thereby improving the listening experience of a user.
Specifically, the audio output device in this embodiment may include the following structure:
the frequency dividing component 1 is configured to perform frequency division processing on a target audio signal to be output to obtain a first audio signal and a second audio signal.
The first audio signal is in a first frequency range, the second audio signal is in a second frequency range, where the first frequency range is different from the second frequency range, as shown in fig. 2, there is no intersection between the first frequency range and the second frequency range, and further, a difference between a maximum value of the first frequency range and a maximum value of the second frequency range is large, such as a frequency range of 0 to 300kHz at a low frequency and a frequency range of 300kHz to 300MHz at a medium frequency.
Specifically, the frequency dividing component 1 in this embodiment may be a component, such as a filter, capable of separating an audio signal in a first frequency range in the target audio signal and separating an audio signal in a second frequency range in the target audio signal, so as to obtain a first audio signal in the first frequency range and a second audio signal in the second frequency range.
It should be noted that the target audio signal to be output in this embodiment may be a target audio signal that needs to be output by an electronic device equipped with the audio output apparatus in this embodiment, such as a music signal that needs to be played externally on a mobile phone or an audio signal of a video that needs to be played on a computer.
And a first output section 2 for outputting the first audio signal output by the frequency dividing section 1.
The output parameters of the first output component 2 correspond to a first frequency range, so that the first output component 2 can output audio signals of the first frequency range, such as a low-frequency loudspeaker.
And a second output section 3 for outputting the second audio signal output from the frequency dividing section 1.
Wherein the output parameter of the second output component 3 corresponds to the second frequency range, so that the second output component 3 can output the audio signal of the second frequency range, such as a medium-high frequency speaker.
According to the above scheme, the audio output device provided by the first embodiment of the application outputs the audio components in different frequency range in the audio signal through different output components, so that a more optimal output effect can be pursued for the audio components in different frequency range, the output effect of the audio signal can be improved, and the listening experience of a user can be improved.
In one implementation, the frequency dividing section 1 may include the following structure therein, as shown in fig. 3:
the first processing unit 4 is configured to perform a first filtering process on the target audio signal to obtain a first audio signal in a first frequency range.
Specifically, the first processing unit 4 in this embodiment may be implemented by a digital signal processor dsp (digital signal processing), which at least includes a filter and has a filter parameter capable of filtering out the audio signal in the first frequency range. For example, the first processing component 4 may be implemented as a DSP capable of low frequency filtering, such that the first processing component 4 is capable of filtering low frequency signals in the target audio signal to obtain low frequency audio signals.
And the second processing unit 5 is configured to perform second filtering processing on the target audio signal to obtain a second audio signal in the second frequency range.
In particular, the second processing unit 5 in this embodiment may be implemented as a DSP, which includes at least a filter and has filter parameters capable of filtering out the audio signal in the second frequency range. For example, the second processing component 5 may be implemented as a DSP capable of medium-high frequency filtering, so that the second processing component 5 can filter medium-high frequency signals in the target audio signal to obtain medium-high frequency audio signals.
Based on the above implementation, the first processing component 4 may be implemented in a specific implementation by the following structure, as shown in fig. 4:
and the channel mixer 6 is used for carrying out channel processing on the target audio signal to obtain a single-channel target audio signal.
The channel mixer 6 may be an Audio Mixing component, and can perform channel separation on a target Audio signal to obtain a mono target Audio signal, for example, perform channel separation on a music signal that needs to be output by a mobile phone to obtain an Audio signal with 2.1 channels.
The first filter 7 is configured to perform first filtering on the target audio signal of the mono channel to obtain a first audio signal in a first frequency range.
The first filter 7 may be a low-frequency filter, so as to perform low-frequency filtering on the target audio signal of the mono channel, and obtain a low-frequency first audio signal.
Optionally, as shown in fig. 5, the first processing unit 4 may further include the following structure:
and the audio optimizer 8 is used for performing sound effect optimization processing on the first audio signal by using a sound effect algorithm and outputting the optimized first audio signal to the first output component 2.
For example, the audio optimizer 8 may be configured with one or a combination of any one of the equalizer eq (equalizer), the dynamic range compression drc (dynamic range compression), the automatic level control agc (automatic Gain control), and other audio optimization algorithms, so as to perform an audio optimization process on the first audio signal, so that the optimized first audio signal is output to the first output unit 2.
Based on the above implementation, the second processing component 5 can be implemented in a specific implementation by the following structure, as shown in fig. 6:
the second filter 9 is configured to perform second filtering on the target audio signal to obtain a second audio signal in a second frequency range.
The second filter 9 may be a medium-high frequency filter, so as to perform medium-high frequency filtering on the target audio signal, and obtain a medium-high frequency second audio signal.
On this basis, the second processing part 5 may further include the following structure therein, as shown in fig. 7:
and the audio optimizer 10 is used for performing sound effect optimization processing on the second audio signal by using a sound effect algorithm and outputting the optimized second audio signal to the second output component 3.
Wherein the audio optimizer 10 may be the same optimizer as the audio optimizer 8 in the first processing component 4 in the foregoing or a different optimizer of the same type.
For example, the audio optimizer 10 may be configured with one or a combination of any one of the equalizer eq (equalizer), the dynamic range compression drc (dynamic range compression), the automatic level control agc (automatic Gain control), and other audio optimization algorithms, so as to perform the prominence optimization on the second audio signal, so that the optimized second audio signal is output to the second output unit 3.
In one implementation, the first processing element 4 may be connected to the first output element 2 by a connection of a mono parallel Bridge-Tied Load PBTL (mono parallel Bridge-Tied Load), while the second processing element 5 is connected to the second output element 3 by a connection of a Stereo Bridge-Tied Load BTL (Stereo Bridge-Tied Load).
Based on this, the present embodiment also provides an apparatus, such as a mobile phone or a server, including the above audio output device.
Referring to fig. 8, a schematic structural diagram of an electronic device according to a second embodiment of the present disclosure is shown, where the electronic device may be a device capable of generating and processing an audio signal, such as a mobile phone or a computer. The electronic device in this embodiment is used for dividing the frequency of the target audio signal and outputting the frequency by using the audio output device, so as to improve the output effect of the audio signal, and thus improve the listening experience of a user.
Specifically, the electronic device in this embodiment may include the following structure:
the processor 801 is configured to generate a target audio signal to be output, and perform frequency division processing on the target audio signal to obtain a first audio signal and a second audio signal.
The processor 801 may be a software processor, such as an application processor ap (application processor) or a hardware processor bp (baseband processor), such as a central processing unit cpu (central processing unit), and may generate a target audio signal, and perform frequency division processing on the target audio signal to obtain two audio signals to be output. The first audio signal is in a first frequency range, the second audio signal is in a second frequency range, and the first frequency range and the second frequency range are different, such as a low frequency band and a middle and high frequency band.
And an audio output device 802 for outputting the first audio signal through the first output means and outputting the second audio signal through the second output means.
The audio output device 802 has a first output component and a second output component, an output parameter of the first output component in the audio output device 802 corresponds to the first frequency range, and an output parameter of the second output component in the audio output device 802 corresponds to the second frequency range.
For example, the first output component may be a low frequency speaker and the second output component may be a medium to high frequency speaker.
According to the above scheme, the electronic device provided by the second embodiment of the present application outputs the audio components in different frequency range in the audio signal through different output components, so that a more optimal output effect can be pursued for the audio components in different frequency range, and thus the output effect of the audio signal can be improved, and the listening experience of a user can be improved.
In one implementation, the processor 801 is specifically configured to: performing first filtering processing on the target audio signal to obtain a first audio signal in the first frequency range, for example, performing low-frequency filtering on the target audio signal to obtain a low-frequency audio signal; and performing second filtering processing on the target audio signal to obtain a second audio flat signal in the second frequency band range, for example, performing medium-high frequency filtering on the target audio to obtain a medium-high frequency audio signal.
Based on the above implementation, the processor 801 is further configured to: and performing channel processing, such as channel separation processing, on the target audio signal to obtain a single-channel target audio signal, and performing first filtering processing on the single-channel target audio signal to obtain a first audio signal in the first frequency range.
Optionally, the processor 801 is further configured to: and performing sound effect optimization processing on the first audio signal by using a sound effect algorithm, so that the audio output device 802 outputs the first audio signal through a first output component. Additionally, the processor 801 may be further configured to: and performing sound effect optimization processing on the second audio signal by using a sound effect algorithm, so that the audio output device 802 outputs the second audio signal through a second output component.
It should be noted that, for the specific implementation of the processor 801 in the present embodiment, reference is made to the corresponding contents in the foregoing, and details are not described here.
Taking the audio signal externally played by the mobile phone as an example, in the technical scheme of the present application, two digital power amplifiers PA (poweramplifier) with DSP are provided in the mobile phone, as shown in fig. 9, wherein the DSP digital power amplifier PA is mainly composed of two parts: DSP and class D, which is generally linear. The AP in the mobile phone distinguishes two digital power amplifiers through the difference of addresses of an Inter-Integrated Circuit (I2C) of a bidirectional two-wire system synchronous serial bus.
One of the digital power amplifiers (first processing units) is connected by means of PBTL, PA generates mono signal of audio (mono audio signal) by separating audio channel of I2S (Inter-IC Sound) data in the DSP, and generates low frequency audio signal by lpf (low Pass filter) in the DSP, where the frequency dividing point can be set at 1Khz, and then the output mono low frequency mono signal is sent to the low frequency speaker by optimizing the Sound effect algorithm of EQ, DRC, AGC, etc.
Another digital power amplifier (second processing unit) is connected by BTL, I2S directly transmits stereo signal, so the DSP of PA can directly generate middle and High frequency audio signal by High pass filter HPF (High-pass filter), the frequency dividing point is also set at about 1Khz, and optimized by EQ, DRC, AGC and other sound effect algorithms, and output to middle and High frequency speakers, including middle and High frequency speakers, as shown in fig. 9. In fig. 9, R represents a right channel and L represents a left channel.
In summary, in the technical scheme of the present application, for stereo audio data to be output, the mono signal and the stereo signal are distinguished by the above-indicated binary frequency division manner to give low and medium frequencies to speakers with different performances, so that physical characteristics of each speaker can be fully exerted, a more optimal output effect can be pursued for audio components in different frequency band ranges, and thus, the output effect of the audio signal can be improved, and the listening experience of a user can be improved.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An audio output device, comprising:
the frequency dividing component is used for performing frequency dividing processing on a target audio signal to be output to obtain a first audio signal and a second audio signal;
wherein the first audio signal is in a first frequency range, the second audio signal is in a second frequency range, and the first frequency range and the second frequency range are different;
a first output section for outputting the first audio signal output by the frequency dividing section;
a second output section for outputting the second audio signal output by the frequency dividing section;
wherein the output parameter of the first output component corresponds to the first frequency range and the output parameter of the second output component corresponds to the second frequency range.
2. The apparatus of claim 1, wherein the frequency dividing means comprises:
the first processing component is used for performing first filtering processing on the target audio signal to obtain a first audio signal in the first frequency range;
and the second processing component is used for performing second filtering processing on the target audio signal to obtain a second audio flat signal in the second frequency band range.
3. The apparatus of claim 2, wherein the first processing means comprises:
the sound channel mixer is used for carrying out sound channel processing on the target audio signal to obtain a single-sound-channel target audio signal;
and the first filter is used for performing first filtering on the single-channel target audio signal to obtain a first audio signal in the first frequency range.
4. The apparatus of claim 3, wherein the first processing component further comprises:
and the audio optimizer is used for performing sound effect optimization processing on the first audio signal by using a sound effect algorithm and outputting the optimized first audio signal to the first output component.
5. The apparatus of claim 2, wherein the first processing unit is connected to the first output unit via a single-channel parallel bridge-connected load PBTL;
the second processing unit is connected to the second output unit by means of a stereo bridge load BTL.
6. An electronic device, comprising:
the processor is used for generating a target audio signal to be output and carrying out frequency division processing on the target audio signal to obtain a first audio signal and a second audio signal;
audio output means for outputting the first audio signal through a first output section and outputting the second audio signal through a second output section;
wherein the first audio signal is in a first frequency range, the second audio signal is in a second frequency range, and the first frequency range and the second frequency range are different; the output parameter of the first output component corresponds to the first frequency range, and the output parameter of the second output component corresponds to the second frequency range.
7. The electronic device of claim 6, wherein the processor is specifically configured to: performing first filtering processing on the target audio signal to obtain a first audio signal in the first frequency range; and carrying out second filtering processing on the target audio signal to obtain a second audio flat signal in the second frequency range.
8. The electronic device of claim 7, wherein the processor is further configured to: and carrying out sound channel processing on the target audio signal to obtain a single-channel target audio signal, and carrying out first filtering processing on the single-channel target audio signal to obtain a first audio signal in the first frequency range.
9. The electronic device of claim 7, wherein the processor is further configured to: and performing sound effect optimization processing on the first audio signal by using a sound effect algorithm so that the audio output device outputs the first audio signal through a first output component.
10. The electronic device of claim 7, wherein the processor is further configured to: and performing sound effect optimization processing on the second audio signal by using the sound effect algorithm so that the audio output device outputs the second audio signal through a second output component.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112969127A (en) * | 2021-02-19 | 2021-06-15 | 联想(北京)有限公司 | Electronic equipment and audio output method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112969127A (en) * | 2021-02-19 | 2021-06-15 | 联想(北京)有限公司 | Electronic equipment and audio output method |
| CN112969127B (en) * | 2021-02-19 | 2022-11-18 | 联想(北京)有限公司 | Electronic equipment and audio output method |
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