A system capable of automatically adjusting speaker sound effects and a method for automatically adjusting sound effects

Abstract

The present invention discloses a system capable of automatically adjusting speaker sound effects and a method for automatically adjusting sound effects. The system includes a multi-channel speaker system for playing standard audio files and outputting sound signals, a detection and pickup system for picking up sound signals and performing denoising processing, a sound field calculation and adjustment system for comparing the picked-up sound with standard sound to resolve frequency response errors, and a feedback and speaker adjustment system for adjusting the multi-channel speaker system based on the frequency response errors. The present invention discloses a system capable of automatically adjusting speaker sound effects, which can achieve automatic adjustment of sound effects and avoid distortion and aberration of sound effects. The disclosed method for automatically adjusting sound effects is used to achieve automatic adjustment of sound effects.

Description

Technical Field

[0001] The present invention relates to the technical field of speaker technology, in particular to a system capable of automatically adjusting the sound effects of a speaker and a method for automatically adjusting the sound effects. Background Art

[0002] In existing speaker systems, the product sound effects are fixed and cannot be automatically adjusted according to the installation environment and space. It is also impossible to overcome the sound effect differences caused by differences in hardware and structure of each speaker system, resulting in sound distortion and distortion in actual user use. Summary of the Invention

[0003] In view of the above problems, the present invention proposes a method for automatically adjusting the sound effects of a speaker.

[0004] The technical means adopted in the present invention are as follows:

[0005] A system capable of automatically adjusting the sound effects of a speaker, comprising a multi-channel speaker system, a detection and pickup system, a sound field calculation and adjustment system, and a feedback and speaker adjustment system;

[0006] When the speaker is in automatic sound adjustment mode:

[0007] The multi-channel speaker system is used to play the standard audio file, and restore and output the sound signal of the standard audio file through the speakers in the multi-channel speaker system;

[0008] The microphone array in the detection and sound pickup system is used to collect the sound signal output by the speaker to obtain a first audio signal, the noise filtering unit in the detection and sound pickup system is used to perform denoising on the first audio signal to obtain a second audio signal, and the signal analog-to-digital conversion unit in the detection and sound pickup system is used to convert the second audio signal into a digital signal and send it to the sound field calculation and adjustment system;

[0009] The sound field calculation and adjustment system is configured to obtain the digital signal, perform sampling and restoration on the obtained digital signal to obtain a first sampled and restored signal, perform frequency response analysis on the first sampled and restored signal to obtain a first frequency response signal, compare the first frequency response signal with a frequency response signal of a standard audio file to obtain a frequency response error, and determine whether the frequency response error is greater than a set value. If so, the frequency response error is sent to the feedback and speaker adjustment system; if not, the automatic sound effect adjustment mode is terminated.

[0010] The feedback and speaker adjustment system is used to adjust the multi-channel speaker system according to the frequency response error.

[0011] Furthermore, the sound field calculation and adjustment system calculates the frequency response error using the following formula:

[0012] ΔH(ω)=H(ω)-α[H1(ω)-β]=A(ω)e jΦ(ω) -α[A1(ω)e jΦ1(ω) -β]=ΔA(ω)e j ΔΦ(ω) (1)

[0013] Wherein: H and H1 are the frequency response values ​​of the standard audio file signal and the first sampled restoration signal at frequency ω, respectively; A and A1 are the signal amplitudes of the standard audio file signal and the first sampled restoration signal at frequency ω, respectively; Φ and Φ1 are the signal phases of the standard audio file signal and the first sampled restoration signal at frequency ω, α is the system compensation factor, β is the environment compensation factor, ΔH(ω) is the frequency response difference between the standard audio file signal and the first sampled restoration signal at frequency ω, and the corresponding signal amplitude difference ΔA(ω) and signal phase difference ΔΦ(ω) are calculated.

[0014] Furthermore, the sound field calculation and adjustment system samples the acquired first sampled restoration signal between 10 Hz and 100 kHz, and compares the sampled signal with the sampled signal of the standard audio file signal to obtain a frequency response error.

[0015] Furthermore, the frequency response signal of the standard audio file is preset in the sound field calculation and adjustment system.

[0016] Furthermore, the noise filtering unit is an active noise reduction unit, and the detection and sound pickup system is further used to collect ambient noise through a microphone array before the multi-channel speaker system plays the standard audio file, and the active noise reduction unit generates an audio signal with a phase opposite to the ambient noise;

[0017] After the microphone array in the detection and pickup system collects the sound signal output by the speaker to obtain a first audio signal, the active noise reduction unit generates an audio signal with a phase opposite to the ambient noise and superimposes it with the first audio signal to denoise the first audio signal to obtain a second audio signal.

[0018] A method for automatically adjusting sound effects of a system capable of automatically adjusting sound effects of a speaker disclosed in the present invention comprises the following steps:

[0019] Step 1: Play a standard audio file by a multi-channel speaker system, and restore and output the sound signal of the standard audio file through the speakers in the multi-channel speaker system;

[0020] Step 2: The microphone array in the detection and pickup system collects the sound signal output by the speaker to obtain a first audio signal, and the noise filtering unit in the detection and pickup system performs denoising on the first audio signal to obtain a second audio signal. The signal analog-to-digital conversion unit in the detection and pickup system converts the second audio signal into a digital signal and sends it to the sound field calculation and adjustment system;

[0021] Step 3: The sound field calculation and adjustment system acquires the digital signal, performs sampling and restoration on the acquired digital signal to obtain a first sampled and restored signal, performs frequency response analysis on the first sampled and restored signal to obtain a first frequency response signal, compares the first frequency response signal with a frequency response signal of a standard audio file to obtain a frequency response error, and determines whether the frequency response error is greater than a set value. If so, proceed to step 4; otherwise, terminate the sound effect adjustment.

[0022] Step 4: The feedback and speaker adjustment system adjusts the multi-channel speaker system according to the frequency response error.

[0023] Furthermore, the frequency response error is calculated using the following formula:

[0024] ΔH(ω)=H(ω)-α[H1(ω)-β]=A(ω)e jΦ(ω) -α[A1(ω)e jΦ1(ω) -β]=ΔA(ω)e j ΔΦ(ω)

[0025] Wherein: H and H1 are the frequency response values ​​of the standard audio file signal and the first sampled restoration signal at frequency ω, respectively; A and A1 are the signal amplitudes of the standard audio file signal and the first sampled restoration signal at frequency ω, respectively; Φ and Φ1 are the signal phases of the standard audio file signal and the first sampled restoration signal at frequency ω, α is the system compensation factor, β is the environment compensation factor, ΔH(ω) is the frequency response difference between the standard audio file signal and the first sampled restoration signal at frequency ω, and the corresponding signal amplitude difference ΔA(ω) and signal phase difference ΔΦ(ω) are calculated.

[0026] Furthermore, the sound field calculation and adjustment system samples the acquired first sampled restoration signal between 10 Hz and 100 kHz, and compares the sampled signal with the sampled signal of the standard audio file signal to obtain a frequency response error.

[0027] Furthermore, the frequency response signal of the standard audio file is preset in the sound field calculation and adjustment system.

[0028] Furthermore, the noise filtering unit is an active noise reduction unit, further comprising detecting the ambient noise collected by the microphone array in the sound pickup system before the multi-channel speaker system plays the standard audio file, and generating an audio signal with an anti-phase to the ambient noise by the active noise reduction unit;

[0029] After the microphone array in the detection and pickup system collects the sound signal output by the speaker to obtain a first audio signal, the active noise reduction unit generates an audio signal with a phase opposite to the ambient noise and superimposes it with the first audio signal to denoise the first audio signal to obtain a second audio signal.

[0030] Compared with the prior art, the system with automatic adjustment of speaker sound effects disclosed in the present invention has the following beneficial effects: due to the presence of a sound detection and pickup system, a sound field calculation and adjustment system, and a feedback and speaker adjustment system, the sound detection and pickup system can collect sound signals of standard audio files played by a multi-channel speaker system, perform denoising processing on them, and send them to the sound field calculation and adjustment system. The sound field calculation and adjustment system can compare the frequency response signal of the collected sound signal with the frequency response signal of the sound signal of the standard audio file to obtain a frequency response error. The feedback and speaker adjustment system can adjust the multi-channel speaker system based on the frequency response error, thereby achieving automatic adjustment of sound effects and avoiding sound distortion and distortion. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a structural diagram of the system capable of automatically adjusting the sound effects of a speaker disclosed in the present invention;

[0032] Figure 2 A frequency response curve of a standard audio file played by the multi-channel speaker system of the present invention;

[0033] Figure 3 A frequency response curve of the restored audio of a standard audio file picked up by the microphone array of the detection pickup system of the present invention;

[0034] Figure 4 The present invention discloses a flow chart of a method for automatically adjusting the sound effects of a system capable of automatically adjusting the sound effects of a speaker.

[0035] In the figure: 1. Multi-channel speaker system, 2. Detection and sound pickup system, 3. Sound field calculation and adjustment system, 4. Feedback and speaker adjustment system. DETAILED DESCRIPTION

[0036] like Figure 1 The figure shows the system for automatically adjusting the sound effects of a speaker disclosed in the present invention, comprising a multi-channel speaker system 1, a detection and sound pickup system 2, a sound field calculation and adjustment system 3, and a feedback and speaker adjustment system 4;

[0037] When the speaker is in automatic sound adjustment mode:

[0038] The multi-channel speaker system 1 includes a multi-channel sound cavity system and its auxiliary mechanisms, a digital signal processing unit (DSP), a power amplifier (PA) unit, and a speaker. The digital signal processing unit adjusts the parameters of each channel through its internal microprocessor to achieve complex signal processing such as active frequency division, delay processing, and equalization adjustment, making the sound of the speaker more pleasant to listen to and better to listen to; the power amplifier unit can adjust the gain, high and low pass, etc. according to the DSP settings. The multi-channel speaker system is used to play standard audio files and restore and output the sound signals of the standard audio files through the speakers in the multi-channel speaker system;

[0039] The detection and sound pickup system 2 includes a microphone array, a noise filtering unit, and a signal analog-to-digital conversion unit. The microphone array in the detection and sound pickup system is used to collect the sound signal output by the speaker to obtain a first audio signal. The noise filtering unit in the detection and sound pickup system is used to denoise the first audio signal to obtain a second audio signal. The signal analog-to-digital conversion unit in the detection and sound pickup system is used to convert the second audio signal into a digital signal and send it to the sound field calculation and adjustment system.

[0040] The sound field calculation and adjustment system 3 is used to obtain the digital signal, perform sampling and restoration on the obtained digital signal to obtain a first sampled restoration signal, perform frequency response analysis on the first sampled restoration signal to obtain a first frequency response signal, and compare the first frequency response signal with the frequency response signal of the standard audio file, such as Figure 2 and Figure 3 The frequency response signal of the standard audio file and the restored frequency response signal are respectively used to obtain a frequency response error, which includes a signal amplitude difference ΔA(ω) and a signal phase difference ΔΦ(ω). It is determined whether the frequency response error is greater than a set value. The set value can be set as needed. In this embodiment, the set value is ±3dB. If so, the frequency response error is sent to the feedback and speaker adjustment system. If not, the automatic sound effect adjustment mode is terminated.

[0041] The feedback and speaker adjustment system 4 is used to adjust the multi-channel speaker system according to the frequency response error. Specifically, the feedback and speaker adjustment system adjusts the gain of the power amplifier unit in the multi-channel speaker system according to the amplitude difference ΔA(ω) in the frequency response error, and the feedback and speaker adjustment system adjusts the directional angle of the speaker in the multi-channel speaker system according to the signal phase difference ΔΦ(ω) in the frequency response error, thereby achieving the adjustment of the speaker sound effect.

[0042] The system capable of automatically adjusting the sound effects of a speaker disclosed in the present invention comprises a detection and sound pickup system, a sound field calculation and adjustment system, and a feedback and speaker adjustment system. The detection and sound pickup system can collect the sound signal of a standard audio file played by a multi-channel speaker system, perform denoising processing on the sound signal, and send the signal to the sound field calculation and adjustment system. The sound field calculation and adjustment system can compare the frequency response signal of the collected sound signal with the frequency response signal of the sound signal of the standard audio file to obtain a frequency response error. The feedback and speaker adjustment system can adjust the multi-channel speaker system according to the frequency response error, thereby achieving automatic adjustment of the sound effects and avoiding distortion and distortion of the sound effects.

[0043] Furthermore, the sound field calculation and adjustment system calculates the frequency response error using the following formula:

[0044] ΔH(ω)=H(ω)-α[H1(ω)-β]=A(ω)e jΦ(ω) -α[A1(ω)e jΦ1(ω) -β]=ΔA(ω)e j ΔΦ(ω) (1)

[0045] Where: H and H1 are the frequency response values ​​of the standard audio file signal and the first sampled restored signal at frequency ω, respectively; A and A1 are the signal amplitudes of the standard audio file signal and the first sampled restored signal at frequency ω, respectively; Φ and Φ1 are the signal phases of the standard audio file signal and the first sampled restored signal at frequency ω, α is the system compensation factor, β is the environment compensation factor. The system compensation factor α needs to be determined based on a comprehensive evaluation of the speaker frequency characteristics, power amplifier chip efficiency, and signal-to-noise ratio characteristics. The environment compensation factor β is determined based on the background noise in the multi-channel speaker system's operating environment. ΔH(ω) is the frequency response difference between the standard audio file signal and the first sampled restored signal at frequency ω, and the corresponding signal amplitude difference ΔA(ω) and signal phase difference ΔΦ(ω) can be calculated. The above formula can be used to quickly and easily calculate the signal amplitude difference ΔA(ω) and signal phase difference ΔΦ(ω) for subsequent adjustments.

[0046] Furthermore, the sound field calculation and adjustment system samples the acquired first sampled restoration signal between 10 Hz and 100 kHz, and compares it with the sampled signal of the standard audio file signal to obtain a frequency response error. By sampling the first sampled restoration signal between 10 Hz and 100 kHz, the data processing amount can be reduced. At the same time, the sound signal within this range is within the range audible to humans, thereby achieving a better auditory effect. At the same time, since the frequency response characteristics of each frequency point are different, the frequency point with an abnormality is obtained by comparing the frequency response obtained by the test with the standard frequency response, and a corresponding error compensation table is established according to the frequency and frequency response error. The feedback and speaker adjustment system can adjust the multi-channel speaker system according to the error compensation table.

[0047] Furthermore, the frequency response signal of the standard audio file is preset in the sound field calculation and adjustment system to facilitate rapid frequency response error calculation and subsequent adjustment.

[0048] Furthermore, the noise filtering unit is an active noise reduction unit, and the detection and sound pickup system is further used to collect ambient noise through a microphone array before the multi-channel speaker system plays the standard audio file, and the active noise reduction unit generates an audio signal with a phase opposite to the ambient noise;

[0049] After the microphone array in the detection and pickup system collects the sound signal output by the speaker to obtain a first audio signal, the active noise reduction unit generates an audio signal that is in phase opposite to the ambient noise and superimposes the signal with the first audio signal to perform denoising on the first audio signal to obtain a second audio signal. The active noise reduction unit can effectively remove the ambient noise, thereby making the obtained frequency response error accurate, thereby effectively adjusting the sound effect of the speaker.

[0050] like Figure 4 The method for automatically adjusting the sound effects of a system capable of automatically adjusting the sound effects of a speaker disclosed in the present invention includes the following steps:

[0051] Step 1: Play a standard audio file by a multi-channel speaker system, and restore and output the sound signal of the standard audio file through the speakers in the multi-channel speaker system;

[0052] Step 2: The microphone array in the detection and pickup system collects the sound signal output by the speaker to obtain a first audio signal, and the noise filtering unit in the detection and pickup system performs denoising on the first audio signal to obtain a second audio signal. The signal analog-to-digital conversion unit in the detection and pickup system converts the second audio signal into a digital signal and sends it to the sound field calculation and adjustment system;

[0053] Step 3: The sound field calculation and adjustment system acquires the digital signal, performs sampling and restoration on the acquired digital signal to obtain a first sampled and restored signal, performs frequency response analysis on the first sampled and restored signal to obtain a first frequency response signal, compares the first frequency response signal with a frequency response signal of a standard audio file to obtain a frequency response error, and determines whether the frequency response error is greater than a set value. If so, proceed to step 4; otherwise, terminate the sound effect adjustment.

[0054] Step 4: The feedback and speaker adjustment system adjusts the multi-channel speaker system according to the frequency response error.

[0055] The present invention discloses a method for automatically adjusting the sound effects of the system capable of automatically adjusting the sound effects of a speaker, thereby achieving automatic adjustment of the sound effects and avoiding distortion and aberration of the sound effects.

[0056] Furthermore, the frequency response error is calculated using the following formula:

[0057] ΔH(ω)=H(ω)-α[H1(ω)-β]=A(ω)e jΦ(ω) -α[A1(ω)e jΦ1(ω) -β]=ΔA(ω)e j ΔΦ(ω)

[0058] Where: H and H1 are the frequency response values ​​of the standard audio file signal and the first sampled restored signal at frequency ω, respectively; A and A1 are the signal amplitudes of the standard audio file signal and the first sampled restored signal at frequency ω, respectively; Φ and Φ1 are the signal phases of the standard audio file signal and the first sampled restored signal at frequency ω, α is the system compensation factor, β is the environment compensation factor. The system compensation factor α needs to be determined based on a comprehensive evaluation of the speaker frequency characteristics, power amplifier chip efficiency, and signal-to-noise ratio characteristics. The environment compensation factor β is determined based on the background noise in the multi-channel speaker system's operating environment. ΔH(ω) is the frequency response difference between the standard audio file signal and the first sampled restored signal at frequency ω, and the corresponding signal amplitude difference ΔA(ω) and signal phase difference ΔΦ(ω) are calculated. The above formula can be used to quickly and easily calculate the signal amplitude difference ΔA(ω) and signal phase difference ΔΦ(ω) for subsequent adjustments.

[0059] Furthermore, the sound field calculation and adjustment system samples the acquired first sampled restoration signal between 10 Hz and 100 kHz, and compares it with the sampled signal of the standard audio file signal to obtain a frequency response error. By sampling the first sampled restoration signal between 10 Hz and 100 kHz, the data processing amount can be reduced. At the same time, the sound signal within this range is within the range audible to humans, thereby achieving a better auditory effect. At the same time, since the frequency response characteristics of each frequency point are different, the frequency point with an abnormality is obtained by comparing the frequency response obtained by the test with the standard frequency response, and a corresponding error compensation table is established according to the frequency and frequency response error. The feedback and speaker adjustment system can adjust the multi-channel speaker system according to the error compensation table.

[0060] Furthermore, the frequency response signal of the standard audio file is preset in the sound field calculation and adjustment system to facilitate rapid frequency response error calculation and subsequent adjustment.

[0061] Furthermore, the noise filtering unit is an active noise reduction unit, further comprising detecting the ambient noise collected by the microphone array in the sound pickup system before the multi-channel speaker system plays the standard audio file, and generating an audio signal with an anti-phase to the ambient noise by the active noise reduction unit;

[0062] After the microphone array in the detection and pickup system collects the sound signal output by the speaker to obtain a first audio signal, the active noise reduction unit generates an audio signal that is in phase opposite to the ambient noise and superimposes the signal with the first audio signal to perform denoising on the first audio signal to obtain a second audio signal. The active noise reduction unit can effectively remove the ambient noise, thereby making the obtained frequency response error accurate, thereby effectively adjusting the sound effect of the speaker.

[0063] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A system for automatically adjusting the sound effects of a speaker, characterized by: Including multi-channel speaker system, detection and pickup system, sound field calculation and adjustment system, and feedback and speaker adjustment system; When the speaker is in automatic sound adjustment mode: The multi-channel speaker system is used to play the standard audio file, and restore and output the sound signal of the standard audio file through the speakers in the multi-channel speaker system; The microphone array in the detection and sound pickup system is used to collect the sound signal output by the speaker to obtain a first audio signal, the noise filtering unit in the detection and sound pickup system is used to perform denoising on the first audio signal to obtain a second audio signal, and the signal analog-to-digital conversion unit in the detection and sound pickup system is used to convert the second audio signal into a digital signal and send it to the sound field calculation and adjustment system; The sound field calculation and adjustment system is configured to obtain the digital signal, perform sampling and restoration on the obtained digital signal to obtain a first sampled and restored signal, perform frequency response analysis on the first sampled and restored signal to obtain a first frequency response signal, compare the first frequency response signal with a frequency response signal of a standard audio file to obtain a frequency response error, and determine whether the frequency response error is greater than a set value. If so, the frequency response error is sent to the feedback and speaker adjustment system; if not, the automatic sound effect adjustment mode is terminated. The feedback and speaker adjustment system is used to adjust the multi-channel speaker system according to the frequency response error; The sound field calculation and adjustment system calculates the frequency response error using the following formula: Wherein: H and H1 are the frequency response values ​​of the standard audio file signal and the first sampled restoration signal at frequency ω respectively, A and A1 are the signal amplitudes of the standard audio file signal and the first sampled restoration signal at frequency ω respectively, Φ and Φ1 are the signal phases of the standard audio file signal and the first sampled restoration signal at frequency ω, α is the system compensation factor, β is the environment compensation factor, ΔH(ω) is the frequency response difference between the standard audio file signal and the first sampled restoration signal at frequency ω, and the corresponding signal amplitude difference ΔA(ω) and signal phase difference ΔΦ(ω) are calculated.

2. The system for automatically adjusting speaker sound effects according to claim 1, characterized in that: The sound field calculation and adjustment system samples the acquired first sampled restoration signal between 10 Hz and 100 kHz, and compares it with the sampled signal of the standard audio file signal to obtain a frequency response error.

3. The system for automatically adjusting speaker sound effects according to claim 2, characterized in that: The frequency response signal of the standard audio file is preset in the sound field calculation and adjustment system.

4. The system for automatically adjusting speaker sound effects according to claim 3, characterized in that: The noise filtering unit is an active noise reduction unit, and the detection and sound pickup system is further used to collect ambient noise through a microphone array before the multi-channel speaker system plays the standard audio file, and the active noise reduction unit generates an audio signal with a phase opposite to the ambient noise; After the microphone array in the detection and pickup system collects the sound signal output by the speaker to obtain a first audio signal, the active noise reduction unit generates an audio signal with a phase opposite to the ambient noise and superimposes it with the first audio signal to denoise the first audio signal to obtain a second audio signal.

5. A method for automatically adjusting sound effects according to the system capable of automatically adjusting sound effects of a speaker according to claim 1, characterized in that: The following steps are involved: Step 1: Play a standard audio file by a multi-channel speaker system, and restore and output the sound signal of the standard audio file through the speakers in the multi-channel speaker system; Step 2: The microphone array in the detection and pickup system collects the sound signal output by the speaker to obtain a first audio signal, and the noise filtering unit in the detection and pickup system performs denoising on the first audio signal to obtain a second audio signal. The signal analog-to-digital conversion unit in the detection and pickup system converts the second audio signal into a digital signal and sends it to the sound field calculation and adjustment system; Step 3: The sound field calculation and adjustment system acquires the digital signal, performs sampling and restoration on the acquired digital signal to obtain a first sampled and restored signal, performs frequency response analysis on the first sampled and restored signal to obtain a first frequency response signal, compares the first frequency response signal with the frequency response signal of the standard audio file to obtain a frequency response error, and determines whether the frequency response error is greater than a set value. If so, proceed to step 4; otherwise, terminate the sound effect adjustment. Step 4: The feedback and speaker adjustment system adjusts the multi-channel speaker system according to the frequency response error; The frequency response error is calculated using the following formula: Wherein: H and H1 are the frequency response values ​​of the standard audio file signal and the first sampled restoration signal at frequency ω respectively, A and A1 are the signal amplitudes of the standard audio file signal and the first sampled restoration signal at frequency ω respectively, Φ and Φ1 are the signal phases of the standard audio file signal and the first sampled restoration signal at frequency ω, α is the system compensation factor, β is the environment compensation factor, ΔH(ω) is the frequency response difference between the standard audio file signal and the first sampled restoration signal at frequency ω, and the corresponding signal amplitude difference ΔA(ω) and signal phase difference ΔΦ(ω) are calculated.

6. The method for automatically adjusting sound effects of a system capable of automatically adjusting sound effects of a speaker according to claim 5, characterized in that: The sound field calculation and adjustment system samples the acquired first sample restoration signal between 10 Hz and 100 kHz, and compares the sampled signal with the sampled signal of the standard audio file signal to obtain a frequency response error.

7. The method for automatically adjusting sound effects of a system capable of automatically adjusting sound effects of a speaker according to claim 6, characterized in that: The frequency response signal of the standard audio file is preset in the sound field calculation and adjustment system.

8. The method for automatically adjusting sound effects of a system capable of automatically adjusting sound effects of a speaker according to claim 7, characterized in that: The noise filtering unit is an active noise reduction unit, and further includes detecting the microphone array in the sound pickup system to collect ambient noise before the multi-channel speaker system plays the standard audio file, and the active noise reduction unit generates an audio signal with an opposite phase to the ambient noise; After the microphone array in the detection and pickup system collects the sound signal output by the speaker to obtain a first audio signal, the active noise reduction unit generates an audio signal with a phase opposite to the ambient noise and superimposes it with the first audio signal to denoise the first audio signal to obtain a second audio signal.

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