TWI784735B - Tuning system for sound system of electric vehicle and audio tuning method using the same - Google Patents

Abstract

A tuning system for a sound system of an electric vehicle and an audio tuning method using the same are provided. The sound system includes a sound control unit disposed on a vehicle host of the electric vehicle and a plurality of original audio channels, and the sound control unit is configured to output at least one audio signal through the plurality of original audio channels. The audio tuning method includes following steps of: analyzing predetermined audio range of the plurality of original audio channels by an audio analyzer; connecting the plurality of original audio channels to an audio processing device; and setting at least one target audio range of at least one target audio channel by the audio processing device. Each of the at least one target audio channel is configured to output at least part of the at least one audio signal corresponding to the at least one target audio range.

Description

Adjustment system for audio system of electric vehicle and audio adjustment method thereof

The present invention is related to the audio system of an electric vehicle, in particular to an adjustment system for the audio system of an electric vehicle and an audio adjustment method thereof.

Generally, the audio system of a fuel vehicle is powered by an external audio main unit connected to the power supply of the fuel vehicle, and the audio main unit is separated from the driving computer of the fuel vehicle without interference. Therefore, when it is desired to refit the audio system, the audio output range of each audio channel of the audio main unit is known and can be directly adjusted, and the audio main unit can also be directly replaced to achieve the target effect.

Compared with the aforementioned fuel car, the sound system of the existing electric car is directly integrated in the trip computer, so it cannot be replaced arbitrarily. Furthermore, each audio input channel and the audio output range of the trip computer are set by the original factory, and the original factory settings are unknown and usually cannot be adjusted or can only be fine-tuned. When the user wants to change the audio range that can be output by each audio channel, there is no adjustment standard for reference, so the adjustment cannot be made accurately, and when the user wants to replace the original speaker device, it may also be because the replaced speaker device is not the same as the original speaker device. The audio range set by the factory does not match and cannot achieve the desired sound effect, and cannot be modified to meet individual needs. In addition, since the number of audio channels set by the trip computer is fixed, if you want to install a speaker The installation also requires complicated modification operations, and there is also a concern that the output audio range of the speaker device does not match the original factory settings, and there are shortcomings that need to be improved urgently.

Therefore, it is necessary to provide a novel and progressive adjustment system and audio adjustment method for an electric vehicle audio system to solve the above-mentioned problems.

The main purpose of the present invention is to provide an audio adjustment method for an electric vehicle audio system, which is easy to operate and adjust and can provide multiple options for audio input and audio channel settings.

To achieve the above object, the present invention provides a method for adjusting audio frequency for an electric vehicle audio system. The electric vehicle audio system includes an audio control unit and a plurality of initial audio channels arranged in a vehicle host of the electric vehicle. The audio control unit For outputting at least one audio source signal through the plurality of initial audio channels, the audio adjustment method includes the following steps: analyzing the preset audio range of the plurality of initial audio channels with an audio analysis device; connecting the plurality of initial audio channels to an audio processing device ; and setting a target audio range of at least one target audio channel in the audio processing device, and each of the target audio channels is used to output the at least one audio source signal corresponding to the target audio range.

In order to achieve the above object, the present invention further provides an adjustment system using the above-mentioned audio adjustment method, including: the audio analysis device, which can be connected to the plurality of initial audio channels; and the audio processing device, including a plurality of The input interface of the original audio channel and at least one output interface connected with the at least one target audio channel.

10:Audio control unit

20: Initial audio channel

21: The first audio channel

22: Second audio channel

23: The third audio channel

24: The fourth audio channel

30:Audio analysis device

40: Audio processing device

41: Target audio channel

42: input interface

43: output interface

50: Electronic device

60: Speaker device

100: Vehicle host

S1~S3: steps

Fig. 1 is a schematic configuration diagram of a preferred embodiment of the present invention.

Fig. 2 is a flow block diagram of a preferred embodiment of the present invention.

The following examples illustrate possible implementations of the present invention, but are not intended to limit the scope of protection of the present invention.

Please refer to Figures 1 to 2, which show a preferred embodiment of the present invention, the audio frequency adjustment method for the electric vehicle audio system of the present invention, the electric vehicle audio system includes a vehicle-mounted host 100 located in the electric vehicle An audio control unit 10 and a plurality of initial audio channels 20 , the audio control unit 10 is used to output at least one audio source signal through the plurality of initial audio channels 20 . The audio range of the at least one audio source signal may, for example, include signals in the treble range, middle range and bass range, and are respectively output through the plurality of initial audio channels 20 corresponding to the frequencies. The audio adjustment method includes the following steps:

Step S1: Analyzing the preset audio ranges of the plurality of initial audio channels 20 with an audio analysis device 30 , so as to know the default audio ranges that can be output by each of the initial audio channels 20 set by the factory. The preset audio ranges of the plurality of initial audio channels 20 may be continuous and cover 20 Hz to 20000 Hz, so as to transmit the at least one audio signal of each frequency band.

Step S2: Connect the plurality of initial audio channels 20 to an audio processing device 40 . In this embodiment, the audio processing device 40 is a digital sound field processor (Digital Soundfield Processor, DSP), which is easy to install, easy to manage and has good use effect. Each of the initial audio channels 20 is connected to the audio processing device 40 through a wire connected to an original speaker device, which can be operated intuitively.

Step S3: Set the target audio range of at least one target audio channel 41 in the audio processing device 40, and each of the target audio channels 41 is used to output the at least one audio source signal corresponding to the target audio frequency range. In this embodiment, an electronic device 50 is connected to the audio processing device 40 to regulate at least one parameter of the audio processing device 40 in the electronic device 50. The electronic device 50 is for example but not limited to a computer, a mobile phone, a tablet computer etc., for easy operation, the at least one parameter includes, for example, the target audio range, signal amplification ratio, etc. of each target audio channel. Each of the target audio channels 41 can be connected to a speaker device 60, and the target audio range of each of the target audio channels 41 is within an output audio range of the speaker device 60, so that the speaker device 60 can play the best performance and avoid damage. Each of the target audio ranges at least partially overlaps with at least two of the consecutive preset audio ranges, so that the preset audio ranges set by the original factory can be expanded according to requirements, and the adjustment flexibility is increased to meet user needs. When the audio control unit 10 outputs the at least one audio source signal to the audio processing device 40 through at least two initial audio channels 20, the audio processing device 40 can integrate the at least one audio source signal according to the at least one target audio channel The target audio range of 41 is re-divided into multiple output audio signals to be output from the corresponding speaker devices 60, so as to obtain a better sound field effect and enhance the sound effect level.

Preferably, the audio adjustment method is to connect the plurality of initial audio channels 20 corresponding to the preset audio ranges to the audio processing device 40 according to at least two of the preset audio ranges spanned by each of the target audio ranges. For example, the plurality of initial audio channels 20 include a first audio channel 21, a second audio channel 22, a third audio channel 23 and a fourth audio channel 24, and the default audio ranges are 20Hz~5000Hz, respectively. 5000Hz~10000Hz, 10000Hz~15000Hz and 15000Hz~20000Hz; when one of the target audio ranges is 20Hz~5500Hz and the other target audio range is 5500Hz~10000Hz, the operator only needs to use the first and second audio channels 21 , 22 is connected to the audio processing device 40, and audio adjustments can be made for some audio channels without changing all of them. Thereby, the audio processing device 40 can reintegrate and divide the audio source signals input from the first and second audio channels 21, 22 into the multiple output audio signals with audio ranges of 20Hz~5500Hz and 5500Hz~10000Hz respectively, so as to by sound The frequency is relatively output by these speaker devices 60, and the output sound effect is good. Similarly, the plurality of initial audio channels 20 can also be connected to the audio processing device 40 at the same time, and a plurality of the target audio channels 41 can be set as required; the number of the at least one target audio channel 41 may be less than, equal to or greater than the multiple initial audio channels The number of audio channels 20 can be set according to the number of these loudspeaker devices 60 to be configured, and the adjustment is flexible, diverse, convenient and accurate in operation.

Preferably, the audio adjustment method can additionally input at least one external audio source signal to the audio processing device 40, at least part of the at least one external audio source signal can be output through the at least one target audio channel 41, so as to integrate and output each audio source to avoid overlapping or conflicting signals. The at least one external sound source can come from a portable sound source device such as a car TV box or a flash drive, or input to the audio processing device 40 through an interface such as AUX or USB, which can provide multiple sound source inputs.

The present invention further provides an adjustment system utilizing the above-mentioned audio adjustment method, including: the audio analysis device 30 and the audio processing device 40 . The audio analysis device 30 can be connected to the plurality of initial audio channels 20; the audio processing device 40 includes a plurality of input interfaces 42 that can be connected to the plurality of initial audio channels 20 and at least one output interface 43 that communicates with the at least one target audio channel 41 , the plurality of output interfaces 43 can be connected to the speaker devices 60 .

To sum up, the audio adjustment method for the electric vehicle audio system of the present invention can be operated without changing the on-board head unit of the electric vehicle, and each target audio range can be accurately set, and can also be used for retrofitting, Replace the speaker device or input external audio source signals to provide various combinations of the audio-visual media of the electric vehicle and facilitate the modification of the audio system.

10:Audio control unit

20: Initial audio channel

21: The first audio channel

22: Second audio channel

23: The third audio channel

24: The fourth audio channel

30:Audio analysis device

40: Audio processing device

41: Target audio channel

42: input interface

43: output interface

50: Electronic device

60: Speaker device

100: Vehicle host

Claims (10)

An audio adjustment method for an audio system of an electric vehicle, the audio system of the electric vehicle includes an audio control unit installed in a vehicle host of the electric vehicle and a plurality of initial audio channels, the audio control unit is used to pass at least one audio source signal through the Multiple initial audio channels are output, and the audio adjustment method includes the following steps: analyzing the preset audio range of the multiple initial audio channels with an audio analysis device; connecting the multiple initial audio channels to an audio processing device; and setting in the audio processing device A target audio range of at least one target audio channel, each of which is used to output the at least one audio source signal corresponding to the target audio range. The audio adjustment method for an electric vehicle audio system according to claim 1, wherein each of the target audio ranges at least partially overlaps with at least two of the consecutive preset audio ranges. The audio adjustment method for an electric vehicle audio system as described in Claim 1, wherein when the audio control unit outputs at least one audio source signal to the audio processing device through at least two initial audio channels, the audio processing device can The at least one audio source signal is integrated and re-divided into a plurality of output audio signals according to the target audio range of the at least one target audio channel. The audio adjustment method for an electric vehicle audio system as described in Claim 1, wherein the preset audio ranges of the plurality of initial audio channels are mutually continuous and cover 20 Hz to 20000 Hz. The audio adjustment method for an electric vehicle audio system as described in Claim 1, wherein in the step of setting the at least one target audio channel, an electronic device is connected to the audio processing device to control the audio processing in the electronic device at least one parameter of the device. In the audio adjustment method for an electric vehicle audio system as described in claim 1, at least one external audio signal is input to the audio processing device, wherein at least part of the at least one external audio signal can be output through the at least one target audio channel. The audio adjustment method for an electric vehicle audio system as described in claim 1, wherein the audio processing device is a digital sound field processor (Digital Soundfield Processor, DSP). The audio adjustment method as described in Claim 1, wherein each of the target audio channels can be connected to a speaker device, and the target audio range of each of the target audio channels is within an output audio range of the speaker device. The audio adjustment method for an electric vehicle audio system as described in Claim 1, wherein at least two of the preset audio ranges spanned by each of the target audio ranges are connected, and the plurality of initial audio channels are connected corresponding to the preset audio frequencies range to the audio processing device. An adjustment system using the audio adjustment method for an electric vehicle audio system according to any one of Claims 1 to 9, comprising: the audio analysis device, capable of connecting the plurality of initial audio channels; and the audio processing device, It includes a plurality of input interfaces connectable to the plurality of initial audio channels and at least one output interface connected with the at least one target audio channel.

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