CN212647873U - Automobile intelligent voice system and vehicle - Google Patents
Automobile intelligent voice system and vehicle Download PDFInfo
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- CN212647873U CN212647873U CN202021175870.XU CN202021175870U CN212647873U CN 212647873 U CN212647873 U CN 212647873U CN 202021175870 U CN202021175870 U CN 202021175870U CN 212647873 U CN212647873 U CN 212647873U
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Abstract
The utility model discloses an automobile intelligent voice system and a vehicle, which comprises a vehicle-mounted voice microphone, an intelligent vehicle machine and a vehicle-mounted loudspeaker, wherein the intelligent vehicle machine is respectively connected with the vehicle-mounted voice microphone and the vehicle-mounted loudspeaker; the intelligent vehicle machine comprises a voice recognition unit, a digital signal processing unit, a system integrated chip SOC, a controller MCU and an audio amplifier. The voice recognition unit is connected with the vehicle-mounted voice microphone in a wireless or wired mode, the digital signal processing unit is respectively electrically connected with the voice recognition unit, the system integration chip SOC, the controller MCU and the audio amplifier, the system integration chip SOC is electrically connected with the controller MCU, the controller MCU is also respectively electrically connected with the audio amplifier and the voice recognition unit, and the audio amplifier is electrically connected with the vehicle-mounted loudspeaker. The utility model discloses can not only enough pronunciation microphone carry out speech recognition, can also carry out K song in the car, realize that a microphone is dual-purpose.
Description
Technical Field
The utility model belongs to the technical field of on-vehicle intelligent pronunciation, concretely relates to car intelligence voice system and vehicle.
Background
Under the scene that car machine entertainment system is powerful gradually nowadays, the demand of passenger to on-vehicle amusement promotes gradually, but under the long-distance driving condition, often many passengers can not carry out long-time visual amusement activity in the vehicle because of the condition such as the jolt of vehicle and self physical factor to lead to experience in bus and slide down sharply. In order to avoid the situation, the Karaoke in the vehicle does not need visual interaction, and the entertainment item which only needs the passenger to carry out audio interaction can provide a good recreation way for the passenger who feels long and tasteless in the journey because the visual entertainment activity cannot be carried out in the driving process. But current on-vehicle intelligent voice system can not satisfy the condition of K singing in the car.
Therefore, there is a need to develop a new intelligent voice system for automobiles and vehicles.
Disclosure of Invention
The utility model aims at providing an automobile intelligence voice system and vehicle can not only carry out speech recognition with pronunciation microphone, can also carry out the interior K song of car, realizes that a microphone is dual-purpose.
In a first aspect, the intelligent voice system for the automobile comprises an on-board voice microphone, an intelligent vehicle machine and an on-board speaker, wherein the intelligent vehicle machine is respectively connected with the on-board voice microphone and the on-board speaker; intelligence car machine is configured with K and sings the mode and not K sings the mode, and this intelligence car machine includes:
the voice recognition unit is used for carrying out noise reduction processing on analog audio signals output by the vehicle-mounted voice microphone in a non-karaoke mode and playing a direct-through role in the karaoke mode, and the voice recognition unit is in wireless or wired connection with the vehicle-mounted voice microphone;
the digital signal processing unit is used for outputting a reference signal to the voice recognition unit in a non-K song mode to eliminate echo and converting an analog audio signal output by the voice recognition unit into a digital audio signal, and receiving the analog audio signal output by the voice recognition unit in the K song mode, and performing noise reduction, echo elimination, howling elimination and conversion on the analog audio signal into the digital audio signal;
the system integrated chip SOC is used for mixing the received digital audio signals and the digital audio signals required to be sent by the system integrated chip SOC in a Karaoke mode and sending the mixed signals to the digital signal processing unit, and the system integrated chip SOC is electrically connected with the digital signal processing unit;
the audio amplifier is used for receiving and amplifying the analog audio signal output by the digital signal processing unit and is electrically connected with the digital signal processing unit;
and the controller MCU is used for controlling the voice recognition unit, the digital signal processing unit and the audio amplifier and is respectively and electrically connected with the voice recognition unit, the system integrated chip SOC, the digital signal processing unit and the audio amplifier.
The second aspect, a vehicle, adopt like car intelligence voice system.
The utility model has the advantages of it is following: it can carry out K song through the used on-vehicle pronunciation microphone of speech recognition, can let the pronunciation microphone of high sensitivity be applicable to K song mode, can fall making an uproar, echo elimination and squeal elimination effectively under the complicated speech input environment such as K song, finally realized guaranteeing that K song experiences can carry out speech recognition's function simultaneously.
Drawings
FIG. 1 is a functional block diagram of the present embodiment;
in the figure: 1. the system comprises a vehicle-mounted voice microphone 2, a voice recognition unit 3, a vehicle-mounted loudspeaker 4, an audio amplifier 5, a digital signal processing unit 6, a system integrated chip SOC 7 and a controller MCU.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, the intelligent voice system of the automobile comprises an on-board voice microphone 1, an intelligent car machine and an on-board speaker 3, wherein the intelligent car machine is respectively connected with the on-board voice microphone 1 and the on-board speaker 3.
In this embodiment, intelligence car machine is configured with K and sings the mode and not K sings the mode. Under the K sings mode, on-vehicle pronunciation microphone 1 and intelligent car machine are used for receiving sound source data, constitute K sings audio frequency input module, provide sound input, echo elimination, the sound source of K sings mode and fall and make an uproar, speech recognition function. Under the K song mode, intelligence car machine and on-vehicle speaker 3 are used for sending the sound source, constitute K song audio output module, provide the output of singing voice and accompaniment under the K song mode.
As shown in fig. 1, in this embodiment, the smart car machine includes a voice recognition unit 2, a digital signal processing unit 5, a system integrated chip SOC6, a controller MCU7, and an audio amplifier 4. The voice recognition unit 2 is connected with the vehicle-mounted voice microphone 1 in a wireless or wired mode, the digital signal processing unit 5 is respectively electrically connected with the voice recognition unit 2, the system integrated chip SOC6, the controller MCU7 and the audio amplifier 4, the system integrated chip SOC6 is electrically connected with the controller MCU7, the controller MCU7 is also electrically connected with the audio amplifier 4 and the voice recognition unit 2, and the audio amplifier 4 is electrically connected with the vehicle-mounted loudspeaker 3.
In this embodiment, the vehicle-mounted voice microphone 1 collects an audio signal through a microphone, and sends the amplified analog audio signal to the voice recognition unit 2 after passing through the gain amplification circuit. The vehicle-mounted voice microphone 1 has the characteristic of high sensitivity, and the sensitivity is generally about-5 dB;
in this embodiment, the system on chip SOC6 implements different noise reduction modes by sending a control signal to the controller MCU7, thereby reducing noise and eliminating echo in the karaoke mode and the non-karaoke mode.
In this embodiment, when the device is in the karaoke mode, the voice recognition unit 2 performs a pass-through function, that is, does not perform noise reduction on the analog audio signal, the digital signal processing unit 5 performs soft noise reduction on the analog audio signal, performs echo cancellation through a reference signal sent by the digital signal processing unit, eliminates a howling phenomenon by adjusting a gain value of the digital signal processing unit 5, and finally converts the analog audio signal into a digital audio signal which is sent to the system integrated chip SOC6 through a digital audio transmission standard protocol.
When the music playing device is in a non-karaoke mode, the voice recognition unit 2 performs noise reduction on the analog audio signal, the digital signal processing unit 5 sends a reference signal to the voice recognition unit 2, and the voice recognition unit 2 performs echo cancellation on the analog audio signal and then sends the analog audio signal to the digital signal processing unit 5. In the non-karaoke mode, the digital signal processing unit 5 does not perform noise reduction processing, and the digital signal processing unit 5 is configured to convert the analog audio signal into a digital audio signal and send the digital audio signal to the system on chip SOC6 through a digital audio transmission standard protocol.
In this embodiment, the system on chip SOC6 mixes the received digital audio signal with a digital audio signal (i.e., background music) that the system on chip SOC6 needs to send, sends the mixed digital audio signal to the digital signal processing unit 5 through a digital audio transmission standard protocol, converts the mixed digital audio signal into an analog audio signal through the digital signal processing unit 5, and sends the analog audio signal to the vehicle-mounted speaker 3 through the audio amplifier 4, thereby forming a sound mixing effect and achieving an ear return environment when singing K.
In this embodiment, the SOC6 may control the gain of the audio amplifier 4 through the controller MCU7, and the controller MCU7 may control the frequency of the pulse width modulation of the audio amplifier 4 through the single chip microcomputer communication protocol to control the output volume.
In this embodiment, the vehicle-mounted voice microphone 1 needs to perform remote voice collection because its application environment is an in-vehicle voice interaction environment, so that it has the characteristics of anti-electromagnetic interference and high sensitivity.
In this embodiment, the vehicular audio microphone 1 has a high sensitivity characteristic, so that when applied to the environment of singing K, it is easy to generate a howling phenomenon. To eliminate the howling phenomenon, the gain value of the digital signal processing unit 5 is adjusted to prevent the occurrence of the phenomenon.
In this embodiment, the speech recognition unit 2 is mainly used to enhance the speech recognition capability, and in the karaoke mode, the speech recognition unit 2 only plays a direct-through role, so that in the karaoke mode, the speech recognition capability is reduced to some extent, but the normal operation can still be performed.
This car intelligence voice system has realized using on-vehicle pronunciation microphone 1 just can carry out K sings to can carry out speech recognition simultaneously, satisfy people's portability and recreational demand.
The software involved in this embodiment is the prior art.
Claims (2)
1. An intelligent voice system of an automobile comprises an on-board voice microphone (1), an intelligent vehicle machine and an on-board speaker (3), wherein the intelligent vehicle machine is respectively connected with the on-board voice microphone (1) and the on-board speaker (3); the method is characterized in that: intelligence car machine is configured with K and sings the mode and not K sings the mode, and this intelligence car machine includes:
the voice recognition unit (2) is used for carrying out noise reduction processing on analog audio signals output by the vehicle-mounted voice microphone (1) in a non-karaoke mode and playing a direct-through role in the karaoke mode, and the voice recognition unit (2) is in wireless or wired connection with the vehicle-mounted voice microphone (1);
the digital signal processing unit (5) is used for outputting a reference signal to the voice recognition unit (2) to perform echo cancellation in a non-karaoke mode, converting an analog audio signal output by the voice recognition unit (2) into a digital audio signal, receiving the analog audio signal output by the voice recognition unit (2) in the karaoke mode, performing noise reduction, echo cancellation, howling cancellation processing on the analog audio signal and converting the analog audio signal into the digital audio signal, and the digital signal processing unit (5) is electrically connected with the voice recognition unit (2);
the system integrated chip SOC (6) is used for mixing the received digital audio signals and the digital audio signals required to be sent by the system integrated chip SOC under the Karaoke mode and sending the mixed signals to the digital signal processing unit (5), and the system integrated chip SOC (6) is electrically connected with the digital signal processing unit (5);
the audio amplifier (4) is used for receiving and amplifying the analog audio signal output by the digital signal processing unit (5), and the audio amplifier (4) is electrically connected with the digital signal processing unit (5);
and the controller MCU (7) is used for controlling the voice recognition unit (2), the digital signal processing unit (5) and the audio amplifier (4), and the controller MCU (7) is respectively and electrically connected with the voice recognition unit (2), the system integrated chip SOC (6), the digital signal processing unit (5) and the audio amplifier (4).
2. A vehicle, characterized in that: the intelligent voice system for the automobile as claimed in claim 1 is adopted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021175870.XU CN212647873U (en) | 2020-06-22 | 2020-06-22 | Automobile intelligent voice system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021175870.XU CN212647873U (en) | 2020-06-22 | 2020-06-22 | Automobile intelligent voice system and vehicle |
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| Publication Number | Publication Date |
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| CN212647873U true CN212647873U (en) | 2021-03-02 |
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| CN202021175870.XU Active CN212647873U (en) | 2020-06-22 | 2020-06-22 | Automobile intelligent voice system and vehicle |
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| CN (1) | CN212647873U (en) |
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- 2020-06-22 CN CN202021175870.XU patent/CN212647873U/en active Active
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